Scope3

Scope3 is the source of truth for greenhouse-gas emissions data in media and advertising, and operates Scope3 Interchange, an agentic advertising platform where buyer agents and seller storefronts transact on the open Ad Context Protocol (AdCP). Its APIs let buyers, publishers and platforms measure the carbon footprint of every ad impression and creative across channels, benchmark against country/channel percentiles, and run AI-driven programmatic advertising end to end. Scope3 publishes four OpenAPI documents across three surfaces: the Carbon Calculator (Measurement) API at api.scope3.com/v2, the AI Impact Measurement API at aiapi.scope3.com (energy, gCO2e and water per inference), and the Interchange Buyer and Storefront v2 APIs at api.interchange.io with 481 operations between them. Interchange is built for AI agents as primary callers: hosted remote MCP endpoints with OAuth (RFC 8414 metadata, dynamic client registration, PKCE), an A2A agent card, three published Agent Skills, a documented error envelope, IETF draft-7 rate-limit headers and a published IU pricing model. Backed by GV.

Scope3 publishes 51 API contracts indexed on the APIs.io network, including AI Impact Measurement API, Benchmarks API, Creative API, and 48 more. Tagged areas include Company, Enterprise, Advertising, Carbon Emissions, and Sustainability.

The Scope3 catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Scope3’s developer surface includes authentication, CLI, changelog, sandbox, documentation, API reference, getting-started guide, and 38 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

73.8/100 exemplar ▬ flat Agent 64/100 agent native Front door AI 6/6 dominant Heartbeat 76/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

4 published contracts 1 MCP Servers 5 Agent Skills

Company Enterprise Advertising Carbon Emissions Sustainability AdTech Measurements Artificial Intelligence AI Agents AdCP MCP Programmatic Media Buying Publishing A2A

What this lets a business do 3

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Sustainability Management

BC-740

AI Impact MeasurementBenchmarksCreativeImpactMeasure

POST /measure POST /creative POST /benchmarks POST /v1/impact

Advertising Sales & Operations Management

BC-3760

ReportingStorefrontStorefront Ad Server Buyer Routing

GET /account-mappings POST /account-mappings/reviews/{grantId}/decision GET /reporting/margin POST /esa/{esaId}/gam-custom-targeting-keys/ensure

Developer Platform & API Ecosystem Management

BC-4270

Webhook Subscriptions

POST /webhook-subscriptions

What people ask Scope3 51

The questions people put to an LLM, and the jobs they hand an agent, that Scope3's APIs answer — each one linked to the operation that does it. Generated by API Evangelist

Scope3 Storefront API Summarize seller account mapping coverage “How many buyer relationships do I have mapped across my active inventory sources?” List seller account relationships “Which operator and brand relationships does my storefront own?” Export seller account mappings as CSV “Can I download my current account mappings and the mapping template as CSV?” List pending buyer account requests “Which buyer account requests are waiting for me to approve or reject?”

Scope3 Creatives API List generation-provider keys for an advertiser “Which of my own AI generation keys can be used for a given advertiser?” Connect my own generation-provider key “Can creative generation run on my own model provider account?” Rotate or edit a generation-provider key “How do I rotate a generation key without losing its label and assignments?” Get a link to the creative dashboard “Can I get a direct link into the creative dashboard for a campaign?”

Scope3 Advertisers API List advertisers “Which advertisers do I have set up in Scope3?” Create an advertiser “How do I set up a new advertiser before creating campaigns?” Get the all-advertisers landing overview “Can I get a portfolio summary across all my advertisers with campaign counts?” Get an advertiser's details “What brand details and ADCP manifest are stored for one of my advertisers?”

Scope3 Campaigns API List campaigns “Which campaigns are running for a particular advertiser?” Create a campaign “How do I start a new ad campaign?” Update a campaign “Can I edit a campaign's name or brief after creating it?” Get a campaign's details “Can I see the full detail of one campaign including its property lists?”

Scope3 Storefronts API List storefronts I can buy from “Which storefronts are available for me to buy media from?” View a storefront and my connection status “Am I connected to a particular storefront?” Diagnose a storefront's source capabilities “What can each inventory source in a storefront actually do?” List my storefront connections and sharing settings “Which storefronts have I connected and are buying, events and feeds turned on?”

Scope3 Account API Get my current account “Which customer account am I currently working in?” List accounts I belong to “Which customer accounts do I have membership on?” Create a child account “How do I create a child account under my organization?” Update an organization's domain “Can I change the registered organization domain for a customer?”

Scope3 Storefront Ad Server Catalog API Create a wholesale product on an ad server source “How do I add a new wholesale product to my ad server?” List wholesale products on an ad server source “Which wholesale products are defined on my ad server source?” Validate a product draft without saving it “Can I check a product definition for errors before creating it on the ad server?” View one wholesale product on an ad server source “What's configured on a specific wholesale product in my ad server?”

Scope3 Measurement API Sync performance measurement data “Can I send campaign performance data directly instead of using a conversions API?” List an advertiser's test cohorts “Which test cohorts exist for my advertiser?” Create a measurement test cohort “How do I set up a test cohort for incrementality measurement?” Get a test cohort “Can I see the definition of one test cohort?”

Scope3 Buyer Billing API View invoice billing details “Which contact, address and tax ID do my invoices go to?” Update invoice billing details “What's the minimum billing information needed before an invoice can be issued?” View my organization's commercial account summary “What plan, pricing and credit balance is my organization on?” View the IU rate card offer “What IU plan is my organization being offered and has it been accepted?”

Scope3 Storefront Ad Server Buyer Routing API Check ad server sandbox account readiness “Is the sandbox advertiser account ready for no-spend tests on my ad server source?” Create or repair the ad server sandbox account “How do I make sure a sandbox advertiser account exists for no-spend testing?” List ad server advertisers for any adapter “Which advertisers exist in my connected ad server, whatever platform it is?” List cached Google Ad Manager advertisers “Which Google Ad Manager advertisers are cached for my source?”

Scope3 Property Lists API List an advertiser's property lists “Which include and exclude domain lists does my advertiser have?” Create an include or exclude domain list “How do I build a blocklist of publisher domains for an advertiser?” Get a property list “Which domains are on one of my property lists?” Rename or replace domains on a property list “Can I replace all the domains on an existing property list?”

Scope3 Product Discovery API Query products across connected storefronts “Can I send one product request to all my connected storefronts at once?” Stage products from a multi-storefront query on a campaign “After querying several storefronts, how do I put the chosen products into a draft campaign cart?” Start a product discovery session for an advertiser “How do I find ad products that fit my campaign brief and budget?” Browse products in an existing discovery session “Can I page through more publishers in a discovery session I already started?”

Showing 12 of 51 APIs with phrasing — see every API.

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 73.8/100 · exemplar

Contract Quality 10.6 / 19

Developer Ergonomics 12.9 / 15

Access Clarity 11.6 / 15

Operational Transparency 6.4 / 10

Contract Governance 2.9 / 9

Discoverability 5.9 / 8

Regulatory Posture 4.8 / 15

Create-or-Update Ergonomics 5.0 / 10

Agent readiness — 64/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Pagination +5 pts — share of collection GETs (an array, or one wrapped in data/items/results ...) that declare a page/limit/offset/cursor parameter, a Link header or a next/cursor field; na with no collection GETs
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
Well-Known Catalog +4 pts — common[].type includes WellKnown, APICatalog, or api-catalog
Consent & Bot Identity +3 pts — common[].type includes AIPREF, ContentSignal, WebBotAuth, or HTTPMessageSignatures

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 56.4 — up to +10.9 composite points
Contract Governance scores 31.8 — up to +8.2 composite points
Access Clarity scores 77.6 — up to +4.5 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/scope3/apis.yml: open an issue on github.com/api-evangelist/scope3 to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Adtech and Privacy	builds-on	26.8 (thin)	-	-
AI Agents (A2A agent cards)	builds-on	26.8 (thin)	-	-
Carbon Accounting Disclosure Standards (SBTi, PCAF, CDP, GHG Protocol)	builds-on	26.8 (thin)	-	-
Amazon Seller Ecosystem (Selling Partner Appstore, Amazon Ads partners)	builds-on	26.8 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 8

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Agent2Agent

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

Model Context Protocol (MCP)

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

Agent Skills

measured — observed by APIs.io (published)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

OpenID Connect

measured — observed by APIs.io (declared)

APIs 51

Individual APIs this provider publishes, each with its own machine-readable definition.

Scope3 AI Impact Measurement API

The AI Impact Measurement API from Scope3 — 1 operation(s) for ai impact measurement.

Scope3 Benchmarks API

The Benchmarks API from Scope3 — 1 operation(s) for benchmarks.

Scope3 Creative API

The Creative API from Scope3 — 1 operation(s) for creative.

Scope3 Data API

The Data API from Scope3 — 2 operation(s) for data.

Scope3 Gpu API

The Gpu API from Scope3 — 2 operation(s) for gpu.

Scope3 Impact API

The Impact API from Scope3 — 1 operation(s) for impact.

Scope3 Measure API

The Measure API from Scope3 — 1 operation(s) for measure.

Scope3 Model API

The Model API from Scope3 — 4 operation(s) for model.

Scope3 Node API

The Node API from Scope3 — 2 operation(s) for node.

Scope3 Reload API

The Reload API from Scope3 — 1 operation(s) for reload.

Scope3 Saved Lists API

The Saved Lists API from Scope3 — 1 operation(s) for saved lists.

Scope3 Segment API

The Segment API from Scope3 — 2 operation(s) for segment.

Scope3 Signals API

The Signals API from Scope3 — 1 operation(s) for signals.

Scope3 Status API

The Status API from Scope3 — 1 operation(s) for status.

Scope3 Account API

Account management, service tokens, and preferences

Scope3 Activity API

The Activity API from Scope3 — 2 operation(s) for activity.

Scope3 Advertisers API

Manage advertisers

Scope3 AI Usage API

Storefront AI token usage visibility by model

Scope3 Asks API

What you are waiting on Scope3 for — support, product, and supply asks in one list

Scope3 Audit Logs API

The Audit Logs API from Scope3 — 1 operation(s) for audit logs.

Scope3 Brands API

The Brands API from Scope3 — 1 operation(s) for brands.

Scope3 Buyer Billing API

Consolidated invoicing for buyers — invoices and pending invoice items issued by Scope3 across the buyer customer.

Scope3 Campaigns API

Manage advertising campaigns

Scope3 Creatives API

Build, manage, and sync campaign creatives via AdCP Creative Protocol

Scope3 Event Sources API

Manage event source configurations and log conversion/marketing events for attribution

Scope3 MCP API

Model Context Protocol endpoints for AI agents

Scope3 Measurement API

Measurement sources, records, context, and freshness

Scope3 Media Billing API

The Media Billing API from Scope3 — 5 operation(s) for media billing.

Scope3 Moderation API

The Moderation API from Scope3 — 1 operation(s) for moderation.

Scope3 Notifications API

The Notifications API from Scope3 — 4 operation(s) for notifications.

Scope3 Optimization Suggestions API

The Optimization Suggestions API from Scope3 — 4 operation(s) for optimization suggestions.

Scope3 Product Discovery API

Discover and select products

Scope3 Products API

The Products API from Scope3 — 1 operation(s) for products.

Scope3 Property Lists API

Validate property lists against AAO registry

Scope3 Release Updates API

The Release Updates API from Scope3 — 2 operation(s) for release updates.

Scope3 Reporting API

Access performance metrics

Scope3 Signup API

Request reviewed access to Interchange

Scope3 Storefront Activity API

Audit log of configuration and inventory changes on the storefront

Scope3 Storefront Ad Server Buyer Routing API

The Storefront Ad Server Buyer Routing API from Scope3 — 12 operation(s) for storefront ad server buyer routing.

Scope3 Storefront Ad Server Catalog API

The Storefront Ad Server Catalog API from Scope3 — 11 operation(s) for storefront ad server catalog.

Scope3 Storefront Ad Server Diagnostics API

The Storefront Ad Server Diagnostics API from Scope3 — 2 operation(s) for storefront ad server diagnostics.

Scope3 Storefront Agents API

List and manage registered sales, signals, and outcomes agents

Scope3 Storefront API

Manage storefront and inventory sources

Scope3 Storefront Billing API

Payout bank details and billing configuration for storefronts

Scope3 Storefront Proposals API

The Storefront Proposals API from Scope3 — 3 operation(s) for storefront proposals.

Scope3 Storefronts API

The Storefronts API from Scope3 — 18 operation(s) for storefronts.

Scope3 Supply Requests API

The Supply Requests API from Scope3 — 3 operation(s) for supply requests.

Scope3 Syndication API

Syndicate resources to ADCP agents

Scope3 Tasks API

Track async operation status

Scope3 Update Proposals API

The Update Proposals API from Scope3 — 1 operation(s) for update proposals.

Scope3 Webhook Subscriptions API

The Webhook Subscriptions API from Scope3 — 2 operation(s) for webhook subscriptions.

Scroll for all 51

Open Collections 14

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

AI Impact Measurement API

OPEN COLLECTION

AI Impact Measurement Benchmarks API

OPEN COLLECTION

AI Impact Measurement Creative API

OPEN COLLECTION

AI Impact Measurement Data API

OPEN COLLECTION

AI Impact Measurement Gpu API

OPEN COLLECTION

AI Measurement Impact API

OPEN COLLECTION

AI Impact Measurement Measure API

OPEN COLLECTION

AI Impact Measurement Model API

OPEN COLLECTION

AI Impact Measurement Node API

OPEN COLLECTION

AI Impact Measurement Reload API

OPEN COLLECTION

AI Impact Measurement Saved Lists API

OPEN COLLECTION

AI Impact Measurement Segment API

OPEN COLLECTION

AI Impact Measurement Signals API

OPEN COLLECTION

AI Impact Measurement Status API

OPEN COLLECTION

Scroll for all 14

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Scope3 MCP Server

Remote MCP server at api.agentic.scope3.com over HTTP; 6 tools listed.

MCP SERVER

Agent Skills 5

Packaged agent skills for driving this provider's APIs from an AI assistant.

scope3-agentic-buyer

AGENT SKILL

scope3-agentic-storefront

AGENT SKILL

Scope3

AGENT SKILL

Measure advertising campaign emissions

AGENT SKILL

Track AI inference environmental impact

AGENT SKILL

Scope3 API pricing

Prices published by Scope3, read 2026-10-28 from docs.apostra.com/v2/buyer/billing/how-iu-billing-works.

Plan	Price
Pay as you go	$0 Includes: 0 included IUs
250	$1,000 Includes: 250 included IUs, $4.00 per included IU
1000	$3,000 Includes: 1,000 included IUs, $3.00 per included IU

Plan details, limits and sources →

Rate limits

: 100 1 minute
: 40 15 minutes
: 20 1 hour

All 4 limits →

Billed by: iu · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Scope3 Plans Pricing

3 plans

PLANS

Scope3 Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Scope3 Rate Limits

4 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Scope3

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Scope3 Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Scope3 Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Scope3 API Rules

59 rules · 33 errors 20 warnings 6 info

SPECTRAL

OpenAPI Overlays 55

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Scope3 Account Api Phrasing Overlay

19 actions · phrasing · scope3-account-api-openapi.yml

GENERATED

Scope3 Activity Api Phrasing Overlay

3 actions · phrasing · scope3-activity-api-openapi.yml

GENERATED

Scope3 Advertisers Api Phrasing Overlay

23 actions · phrasing · scope3-advertisers-api-openapi.yml

GENERATED

Scope3 Ai Impact Measurement Api Phrasing Overlay

2 actions · phrasing · scope3-ai-impact-measurement-api-openapi.yml

GENERATED

Scope3 Ai Overlay

1 action · update · scope3-ai-openapi-original.yml

DERIVED

Scope3 Ai Usage Api Phrasing Overlay

3 actions · phrasing · scope3-ai-usage-api-openapi.yml

GENERATED

Scope3 Asks Api Phrasing Overlay

2 actions · phrasing · scope3-asks-api-openapi.yml

GENERATED

Scope3 Audit Logs Api Phrasing Overlay

2 actions · phrasing · scope3-audit-logs-api-openapi.yml

GENERATED

Scope3 Benchmarks Api Phrasing Overlay

2 actions · phrasing · scope3-benchmarks-api-openapi.yml

GENERATED

Scope3 Brands Api Phrasing Overlay

2 actions · phrasing · scope3-brands-api-openapi.yml

GENERATED

Scope3 Buyer Billing Api Phrasing Overlay

16 actions · phrasing · scope3-buyer-billing-api-openapi.yml

GENERATED

Scope3 Buyer Overlay

2 actions · update · scope3-buyer-openapi-original.yml

DERIVED

Scope3 Campaigns Api Phrasing Overlay

22 actions · phrasing · scope3-campaigns-api-openapi.yml

GENERATED

Scope3 Creative Api Phrasing Overlay

2 actions · phrasing · scope3-creative-api-openapi.yml

GENERATED

Scope3 Creatives Api Phrasing Overlay

40 actions · phrasing · scope3-creatives-api-openapi.yml

GENERATED

Scope3 Data Api Phrasing Overlay

3 actions · phrasing · scope3-data-api-openapi.yml

GENERATED

Scope3 Event Sources Api Phrasing Overlay

4 actions · phrasing · scope3-event-sources-api-openapi.yml

GENERATED

Scope3 Gpu Api Phrasing Overlay

6 actions · phrasing · scope3-gpu-api-openapi.yml

GENERATED

Scope3 Impact Api Phrasing Overlay

2 actions · phrasing · scope3-impact-api-openapi.yml

GENERATED

Scope3 Mcp Api Phrasing Overlay

4 actions · phrasing · scope3-mcp-api-openapi.yml

GENERATED

Scope3 Measure Api Phrasing Overlay

2 actions · phrasing · scope3-measure-api-openapi.yml

GENERATED

Scope3 Measurement Api Phrasing Overlay

17 actions · phrasing · scope3-measurement-api-openapi.yml

GENERATED

Scope3 Measurement Overlay

2 actions · update · scope3-measurement-openapi.yml

DERIVED

Scope3 Media Billing Api Phrasing Overlay

9 actions · phrasing · scope3-media-billing-api-openapi.yml

GENERATED

Scope3 Model Api Phrasing Overlay

8 actions · phrasing · scope3-model-api-openapi.yml

GENERATED

Scope3 Moderation Api Phrasing Overlay

2 actions · phrasing · scope3-moderation-api-openapi.yml

GENERATED

Scope3 Node Api Phrasing Overlay

6 actions · phrasing · scope3-node-api-openapi.yml

GENERATED

Scope3 Notifications Api Phrasing Overlay

5 actions · phrasing · scope3-notifications-api-openapi.yml

GENERATED

Scope3 Optimization Suggestions Api Phrasing Overlay

5 actions · phrasing · scope3-optimization-suggestions-api-openapi.yml

GENERATED

Scope3 Product Discovery Api Phrasing Overlay

10 actions · phrasing · scope3-product-discovery-api-openapi.yml

GENERATED

Scope3 Products Api Phrasing Overlay

2 actions · phrasing · scope3-products-api-openapi.yml

GENERATED

Scope3 Property Lists Api Phrasing Overlay

10 actions · phrasing · scope3-property-lists-api-openapi.yml

GENERATED

Scope3 Release Updates Api Phrasing Overlay

3 actions · phrasing · scope3-release-updates-api-openapi.yml

GENERATED

Scope3 Reload Api Phrasing Overlay

2 actions · phrasing · scope3-reload-api-openapi.yml

GENERATED

Scope3 Reporting Api Phrasing Overlay

4 actions · phrasing · scope3-reporting-api-openapi.yml

GENERATED

Scope3 Saved Lists Api Phrasing Overlay

2 actions · phrasing · scope3-saved-lists-api-openapi.yml

GENERATED

Scope3 Segment Api Phrasing Overlay

3 actions · phrasing · scope3-segment-api-openapi.yml

GENERATED

Scope3 Signals Api Phrasing Overlay

8 actions · phrasing · scope3-signals-api-openapi.yml

GENERATED

Scope3 Signup Api Phrasing Overlay

2 actions · phrasing · scope3-signup-api-openapi.yml

GENERATED

Scope3 Status Api Phrasing Overlay

2 actions · phrasing · scope3-status-api-openapi.yml

GENERATED

Scope3 Storefront Activity Api Phrasing Overlay

2 actions · phrasing · scope3-storefront-activity-api-openapi.yml

GENERATED

Scope3 Storefront Ad Server Buyer Routing Api Phrasing Overlay

15 actions · phrasing · scope3-storefront-ad-server-buyer-routing-api-openapi.yml

GENERATED

Scope3 Storefront Ad Server Catalog Api Phrasing Overlay

19 actions · phrasing · scope3-storefront-ad-server-catalog-api-openapi.yml

GENERATED

Scope3 Storefront Ad Server Diagnostics Api Phrasing Overlay

3 actions · phrasing · scope3-storefront-ad-server-diagnostics-api-openapi.yml

GENERATED

Scope3 Storefront Agents Api Phrasing Overlay

6 actions · phrasing · scope3-storefront-agents-api-openapi.yml

GENERATED

Scope3 Storefront Api Phrasing Overlay

160 actions · phrasing · scope3-storefront-api-openapi.yml

GENERATED

Scope3 Storefront Billing Api Phrasing Overlay

10 actions · phrasing · scope3-storefront-billing-api-openapi.yml

GENERATED

Scope3 Storefront Overlay

2 actions · update · scope3-storefront-openapi-original.yml

DERIVED

Scope3 Storefront Proposals Api Phrasing Overlay

6 actions · phrasing · scope3-storefront-proposals-api-openapi.yml

GENERATED

Scope3 Storefronts Api Phrasing Overlay

20 actions · phrasing · scope3-storefronts-api-openapi.yml

GENERATED

Scope3 Supply Requests Api Phrasing Overlay

5 actions · phrasing · scope3-supply-requests-api-openapi.yml

GENERATED

Scope3 Syndication Api Phrasing Overlay

3 actions · phrasing · scope3-syndication-api-openapi.yml

GENERATED

Scope3 Tasks Api Phrasing Overlay

2 actions · phrasing · scope3-tasks-api-openapi.yml

GENERATED

Scope3 Update Proposals Api Phrasing Overlay

3 actions · phrasing · scope3-update-proposals-api-openapi.yml

GENERATED

Scope3 Webhook Subscriptions Api Phrasing Overlay

4 actions · phrasing · scope3-webhook-subscriptions-api-openapi.yml

GENERATED

Scroll for all 55

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Scope3 Authentication

http/oauth2/openIdConnect · 4 schemes

SECURITY

Scope3 Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Scope3 Scopes

4 scopes · authorizationCode

4 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Scope3 Agentic Access

466 operations · 261 acting · 5 human-in-the-loop

466 operations · 261 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

Sandbox

DeveloperPortal

GettingStarted

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 7

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

WellKnown

AgenticAccess

MCPServer

AgentSkill

LLMsTxt

Scroll for all 7

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Idempotency

ErrorCatalog

Conventions

Lifecycle

Conformance

DataModel

Webhooks

Scroll for all 7

Build 5

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

Packages

SDKs

CLI

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 4

Status, limits, changes, and where to get help

RateLimits

Deprecation

ChangeLog

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 6

Properties that don't map to a standard resource type

CapabilityMap

Overlay

Overlay

Overlay

AgentCard

Interchange

Source (apis.yml)

aid: scope3
name: Scope3
description: 'Scope3 is the source of truth for greenhouse-gas emissions data in media and advertising, and operates Scope3
  Interchange, an agentic advertising platform where buyer agents and seller storefronts transact on the open Ad Context Protocol
  (AdCP). Its APIs let buyers, publishers and platforms measure the carbon footprint of every ad impression and creative across
  channels, benchmark against country/channel percentiles, and run AI-driven programmatic advertising end to end. Scope3 publishes
  four OpenAPI documents across three surfaces: the Carbon Calculator (Measurement) API at api.scope3.com/v2, the AI Impact
  Measurement API at aiapi.scope3.com (energy, gCO2e and water per inference), and the Interchange Buyer and Storefront v2
  APIs at api.interchange.io with 481 operations between them. Interchange is built for AI agents as primary callers: hosted
  remote MCP endpoints with OAuth (RFC 8414 metadata, dynamic client registration, PKCE), an A2A agent card, three published
  Agent Skills, a documented error envelope, IETF draft-7 rate-limit headers and a published IU pricing model. Backed by GV.'
url: https://raw.githubusercontent.com/api-evangelist/scope3/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://scope3.com/og-default.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-13'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
tags:
- Company
- Enterprise
- Advertising
- Carbon Emissions
- Sustainability
- AdTech
- Measurements
- Artificial Intelligence
- AI Agents
- AdCP
- MCP
- Programmatic
- Media Buying
- Publishing
- A2A
tags_raw:
- Company
- Enterprise
- Advertising
- Carbon Emissions
- Sustainability
- AdTech
- Measurement
- Artificial Intelligence
- Agentic
- AdCP
- MCP
- Programmatic
- Media Buying
- Publishing
- A2A
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: scope3:scope3-ai-impact-measurement-api
  name: Scope3 AI Impact Measurement API
  description: The AI Impact Measurement API from Scope3 — 1 operation(s) for ai impact measurement.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - AI Impact Measurement
  properties:
  - type: OpenAPI
    url: openapi/scope3-ai-impact-measurement-api-openapi.yml
- aid: scope3:scope3-benchmarks-api
  name: Scope3 Benchmarks API
  description: The Benchmarks API from Scope3 — 1 operation(s) for benchmarks.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://api.scope3.com/v2
  tags:
  - Benchmarks
  properties:
  - type: OpenAPI
    url: openapi/scope3-benchmarks-api-openapi.yml
- aid: scope3:scope3-creative-api
  name: Scope3 Creative API
  description: The Creative API from Scope3 — 1 operation(s) for creative.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://api.scope3.com/v2
  tags:
  - Creative
  properties:
  - type: OpenAPI
    url: openapi/scope3-creative-api-openapi.yml
- aid: scope3:scope3-data-api
  name: Scope3 Data API
  description: The Data API from Scope3 — 2 operation(s) for data.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://api.scope3.com/v2
  tags:
  - Data
  properties:
  - type: OpenAPI
    url: openapi/scope3-data-api-openapi.yml
- aid: scope3:scope3-gpu-api
  name: Scope3 Gpu API
  description: The Gpu API from Scope3 — 2 operation(s) for gpu.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - GPU
  tags_raw:
  - Gpu
  properties:
  - type: OpenAPI
    url: openapi/scope3-gpu-api-openapi.yml
- aid: scope3:scope3-impact-api
  name: Scope3 Impact API
  description: The Impact API from Scope3 — 1 operation(s) for impact.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Impact
  properties:
  - type: OpenAPI
    url: openapi/scope3-impact-api-openapi.yml
- aid: scope3:scope3-measure-api
  name: Scope3 Measure API
  description: The Measure API from Scope3 — 1 operation(s) for measure.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://api.scope3.com/v2
  tags:
  - Measure
  properties:
  - type: OpenAPI
    url: openapi/scope3-measure-api-openapi.yml
- aid: scope3:scope3-model-api
  name: Scope3 Model API
  description: The Model API from Scope3 — 4 operation(s) for model.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Model
  properties:
  - type: OpenAPI
    url: openapi/scope3-model-api-openapi.yml
- aid: scope3:scope3-node-api
  name: Scope3 Node API
  description: The Node API from Scope3 — 2 operation(s) for node.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Node
  properties:
  - type: OpenAPI
    url: openapi/scope3-node-api-openapi.yml
- aid: scope3:scope3-reload-api
  name: Scope3 Reload API
  description: The Reload API from Scope3 — 1 operation(s) for reload.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Reload
  properties:
  - type: OpenAPI
    url: openapi/scope3-reload-api-openapi.yml
- aid: scope3:scope3-saved-lists-api
  name: Scope3 Saved Lists API
  description: The Saved Lists API from Scope3 — 1 operation(s) for saved lists.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://api.scope3.com/v2
  tags:
  - Saved Lists
  properties:
  - type: OpenAPI
    url: openapi/scope3-saved-lists-api-openapi.yml
- aid: scope3:scope3-segment-api
  name: Scope3 Segment API
  description: The Segment API from Scope3 — 2 operation(s) for segment.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://api.scope3.com/v2
  tags:
  - Segment
  properties:
  - type: OpenAPI
    url: openapi/scope3-segment-api-openapi.yml
- aid: scope3:scope3-signals-api
  name: Scope3 Signals API
  description: The Signals API from Scope3 — 1 operation(s) for signals.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://api.scope3.com/v2
  tags:
  - Signals
  properties:
  - type: OpenAPI
    url: openapi/scope3-signals-api-openapi.yml
- aid: scope3:scope3-status-api
  name: Scope3 Status API
  description: The Status API from Scope3 — 1 operation(s) for status.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/scope3-status-api-openapi.yml
- aid: scope3:scope3-account-api
  name: Scope3 Account API
  description: Account management, service tokens, and preferences
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/scope3-account-api-openapi.yml
- aid: scope3:scope3-activity-api
  name: Scope3 Activity API
  description: The Activity API from Scope3 — 2 operation(s) for activity.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Activity
  properties:
  - type: OpenAPI
    url: openapi/scope3-activity-api-openapi.yml
- aid: scope3:scope3-advertisers-api
  name: Scope3 Advertisers API
  description: Manage advertisers
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Advertisers
  properties:
  - type: OpenAPI
    url: openapi/scope3-advertisers-api-openapi.yml
- aid: scope3:scope3-ai-usage-api
  name: Scope3 AI Usage API
  description: Storefront AI token usage visibility by model
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - AI Usage
  properties:
  - type: OpenAPI
    url: openapi/scope3-ai-usage-api-openapi.yml
- aid: scope3:scope3-asks-api
  name: Scope3 Asks API
  description: What you are waiting on Scope3 for — support, product, and supply asks in one list
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Asks
  properties:
  - type: OpenAPI
    url: openapi/scope3-asks-api-openapi.yml
- aid: scope3:scope3-audit-logs-api
  name: Scope3 Audit Logs API
  description: The Audit Logs API from Scope3 — 1 operation(s) for audit logs.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Audit Logs
  properties:
  - type: OpenAPI
    url: openapi/scope3-audit-logs-api-openapi.yml
- aid: scope3:scope3-brands-api
  name: Scope3 Brands API
  description: The Brands API from Scope3 — 1 operation(s) for brands.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Brands
  properties:
  - type: OpenAPI
    url: openapi/scope3-brands-api-openapi.yml
- aid: scope3:scope3-buyer-billing-api
  name: Scope3 Buyer Billing API
  description: Consolidated invoicing for buyers — invoices and pending invoice items issued by Scope3 across the buyer customer.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Buyer Billing
  properties:
  - type: OpenAPI
    url: openapi/scope3-buyer-billing-api-openapi.yml
- aid: scope3:scope3-campaigns-api
  name: Scope3 Campaigns API
  description: Manage advertising campaigns
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Campaigns
  properties:
  - type: OpenAPI
    url: openapi/scope3-campaigns-api-openapi.yml
- aid: scope3:scope3-creatives-api
  name: Scope3 Creatives API
  description: Build, manage, and sync campaign creatives via AdCP Creative Protocol
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Creative
  tags_raw:
  - Creatives
  properties:
  - type: OpenAPI
    url: openapi/scope3-creatives-api-openapi.yml
- aid: scope3:scope3-event-sources-api
  name: Scope3 Event Sources API
  description: Manage event source configurations and log conversion/marketing events for attribution
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Event Sources
  properties:
  - type: OpenAPI
    url: openapi/scope3-event-sources-api-openapi.yml
- aid: scope3:scope3-mcp-api
  name: Scope3 MCP API
  description: Model Context Protocol endpoints for AI agents
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - MCP
  properties:
  - type: OpenAPI
    url: openapi/scope3-mcp-api-openapi.yml
- aid: scope3:scope3-measurement-api
  name: Scope3 Measurement API
  description: Measurement sources, records, context, and freshness
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Measurements
  tags_raw:
  - Measurement
  properties:
  - type: OpenAPI
    url: openapi/scope3-measurement-api-openapi.yml
- aid: scope3:scope3-media-billing-api
  name: Scope3 Media Billing API
  description: The Media Billing API from Scope3 — 5 operation(s) for media billing.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Media Billing
  properties:
  - type: OpenAPI
    url: openapi/scope3-media-billing-api-openapi.yml
- aid: scope3:scope3-moderation-api
  name: Scope3 Moderation API
  description: The Moderation API from Scope3 — 1 operation(s) for moderation.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Moderation
  properties:
  - type: OpenAPI
    url: openapi/scope3-moderation-api-openapi.yml
- aid: scope3:scope3-notifications-api
  name: Scope3 Notifications API
  description: The Notifications API from Scope3 — 4 operation(s) for notifications.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Notification
  tags_raw:
  - Notifications
  properties:
  - type: OpenAPI
    url: openapi/scope3-notifications-api-openapi.yml
- aid: scope3:scope3-optimization-suggestions-api
  name: Scope3 Optimization Suggestions API
  description: The Optimization Suggestions API from Scope3 — 4 operation(s) for optimization suggestions.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Optimization Suggestions
  properties:
  - type: OpenAPI
    url: openapi/scope3-optimization-suggestions-api-openapi.yml
- aid: scope3:scope3-product-discovery-api
  name: Scope3 Product Discovery API
  description: Discover and select products
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Product Discovery
  properties:
  - type: OpenAPI
    url: openapi/scope3-product-discovery-api-openapi.yml
- aid: scope3:scope3-products-api
  name: Scope3 Products API
  description: The Products API from Scope3 — 1 operation(s) for products.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Product
  tags_raw:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/scope3-products-api-openapi.yml
- aid: scope3:scope3-property-lists-api
  name: Scope3 Property Lists API
  description: Validate property lists against AAO registry
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Property Lists
  properties:
  - type: OpenAPI
    url: openapi/scope3-property-lists-api-openapi.yml
- aid: scope3:scope3-release-updates-api
  name: Scope3 Release Updates API
  description: The Release Updates API from Scope3 — 2 operation(s) for release updates.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Release Updates
  properties:
  - type: OpenAPI
    url: openapi/scope3-release-updates-api-openapi.yml
- aid: scope3:scope3-reporting-api
  name: Scope3 Reporting API
  description: Access performance metrics
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Reporting
  properties:
  - type: OpenAPI
    url: openapi/scope3-reporting-api-openapi.yml
- aid: scope3:scope3-signup-api
  name: Scope3 Signup API
  description: Request reviewed access to Interchange
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Sign Up
  tags_raw:
  - Signup
  properties:
  - type: OpenAPI
    url: openapi/scope3-signup-api-openapi.yml
- aid: scope3:scope3-storefront-activity-api
  name: Scope3 Storefront Activity API
  description: Audit log of configuration and inventory changes on the storefront
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Storefront Activity
  properties:
  - type: OpenAPI
    url: openapi/scope3-storefront-activity-api-openapi.yml
- aid: scope3:scope3-storefront-ad-server-buyer-routing-api
  name: Scope3 Storefront Ad Server Buyer Routing API
  description: The Storefront Ad Server Buyer Routing API from Scope3 — 12 operation(s) for storefront ad server buyer routing.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Storefront Ad Server Buyer Routing
  properties:
  - type: OpenAPI
    url: openapi/scope3-storefront-ad-server-buyer-routing-api-openapi.yml
- aid: scope3:scope3-storefront-ad-server-catalog-api
  name: Scope3 Storefront Ad Server Catalog API
  description: The Storefront Ad Server Catalog API from Scope3 — 11 operation(s) for storefront ad server catalog.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Storefront Ad Server Catalog
  properties:
  - type: OpenAPI
    url: openapi/scope3-storefront-ad-server-catalog-api-openapi.yml
- aid: scope3:scope3-storefront-ad-server-diagnostics-api
  name: Scope3 Storefront Ad Server Diagnostics API
  description: The Storefront Ad Server Diagnostics API from Scope3 — 2 operation(s) for storefront ad server diagnostics.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Storefront Ad Server Diagnostics
  properties:
  - type: OpenAPI
    url: openapi/scope3-storefront-ad-server-diagnostics-api-openapi.yml
- aid: scope3:scope3-storefront-agents-api
  name: Scope3 Storefront Agents API
  description: List and manage registered sales, signals, and outcomes agents
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Storefront Agents
  properties:
  - type: OpenAPI
    url: openapi/scope3-storefront-agents-api-openapi.yml
- aid: scope3:scope3-storefront-api
  name: Scope3 Storefront API
  description: Manage storefront and inventory sources
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Storefront
  properties:
  - type: OpenAPI
    url: openapi/scope3-storefront-api-openapi.yml
- aid: scope3:scope3-storefront-billing-api
  name: Scope3 Storefront Billing API
  description: Payout bank details and billing configuration for storefronts
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Storefront Billing
  properties:
  - type: OpenAPI
    url: openapi/scope3-storefront-billing-api-openapi.yml
- aid: scope3:scope3-storefront-proposals-api
  name: Scope3 Storefront Proposals API
  description: The Storefront Proposals API from Scope3 — 3 operation(s) for storefront proposals.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Storefront Proposals
  properties:
  - type: OpenAPI
    url: openapi/scope3-storefront-proposals-api-openapi.yml
- aid: scope3:scope3-storefronts-api
  name: Scope3 Storefronts API
  description: The Storefronts API from Scope3 — 18 operation(s) for storefronts.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Storefront
  tags_raw:
  - Storefronts
  properties:
  - type: OpenAPI
    url: openapi/scope3-storefronts-api-openapi.yml
- aid: scope3:scope3-supply-requests-api
  name: Scope3 Supply Requests API
  description: The Supply Requests API from Scope3 — 3 operation(s) for supply requests.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Supply Requests
  properties:
  - type: OpenAPI
    url: openapi/scope3-supply-requests-api-openapi.yml
- aid: scope3:scope3-syndication-api
  name: Scope3 Syndication API
  description: Syndicate resources to ADCP agents
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Syndication
  properties:
  - type: OpenAPI
    url: openapi/scope3-syndication-api-openapi.yml
- aid: scope3:scope3-tasks-api
  name: Scope3 Tasks API
  description: Track async operation status
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Task
  tags_raw:
  - Tasks
  properties:
  - type: OpenAPI
    url: openapi/scope3-tasks-api-openapi.yml
- aid: scope3:scope3-update-proposals-api
  name: Scope3 Update Proposals API
  description: The Update Proposals API from Scope3 — 1 operation(s) for update proposals.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Update Proposals
  properties:
  - type: OpenAPI
    url: openapi/scope3-update-proposals-api-openapi.yml
- aid: scope3:scope3-webhook-subscriptions-api
  name: Scope3 Webhook Subscriptions API
  description: The Webhook Subscriptions API from Scope3 — 2 operation(s) for webhook subscriptions.
  humanURL: https://docs.scope3.com/reference/measure-1
  baseURL: https://aiapi.scope3.com
  tags:
  - Webhook Subscriptions
  properties:
  - type: OpenAPI
    url: openapi/scope3-webhook-subscriptions-api-openapi.yml
common:
- type: CapabilityMap
  url: capabilities/scope3-capability-edges.yml
  name: Scope3 Business Capability Map
- type: Overlay
  url: overlays/scope3-buyer-overlay.yaml
- type: AgentSkill
  url: skills/scope3-agentic-buyer.md
- type: Overlay
  url: overlays/scope3-storefront-overlay.yaml
- type: AgentSkill
  url: skills/scope3-agentic-storefront.md
- type: Overlay
  url: overlays/scope3-ai-overlay.yaml
- type: AgentCard
  url: a2a/scope3-a2a.yml
- type: WellKnown
  url: well-known/scope3-well-known.yml
- type: ToolCrosswalk
  url: mcp/scope3-tool-crosswalk.yml
- type: Idempotency
  url: conventions/scope3-conventions.yml
- type: OAuthScopes
  url: scopes/scope3-scopes.yml
- type: Plans
  url: plans/scope3-plans-pricing.yml
- type: RateLimits
  url: rate-limits/scope3-rate-limits.yml
- type: AgenticAccess
  url: agentic-access/scope3-agentic-access.yml
- type: DomainSecurity
  url: security/scope3-domain-security.yml
- type: Authentication
  url: authentication/scope3-authentication.yml
- type: Packages
  url: packages/scope3-packages.yml
- type: SDKs
  url: packages/scope3-packages.yml
- type: CLI
  url: cli/scope3-cli.yml
- type: MCPServer
  url: mcp/scope3-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/scope3-llms.txt
- type: ErrorCatalog
  url: errors/scope3-problem-types.yml
- type: Conventions
  url: conventions/scope3-conventions.yml
- type: Lifecycle
  url: lifecycle/scope3-lifecycle.yml
- type: Deprecation
  url: lifecycle/scope3-lifecycle.yml
- type: ChangeLog
  url: changelog/scope3-changelog.yml
- type: Conformance
  url: conformance/scope3-conformance.yml
- type: DataModel
  url: data-model/scope3-data-model.yml
- type: Sandbox
  url: sandbox/scope3-sandbox.yml
- type: Webhooks
  url: asyncapi/scope3-webhooks.yml
- type: DeveloperPortal
  url: https://docs.scope3.com
- type: Documentation
  url: https://docs.scope3.com/docs
- type: APIReference
  url: https://docs.scope3.com/reference/measure-1
- type: GettingStarted
  url: https://docs.scope3.com/docs/getting-started
- type: Support
  url: https://scope3.com/support
- type: Blog
  url: https://scope3.com/blog/
- type: GitHubOrganization
  url: https://github.com/scope3data
- type: Pricing
  url: https://docs.interchange.io/v2/buyer/billing/how-iu-billing-works
- type: SignUp
  url: https://interchange.io/signup
- type: Login
  url: https://interchange.io/login
- type: TermsOfService
  url: https://scope3.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://scope3.com/privacy-policy
- type: Website
  url: https://scope3.com
- type: Interchange
  url: https://interchange.io
  name: Scope3 Interchange
  description: Scope3's agentic advertising platform. Developer portal https://docs.interchange.io, quickstart /v2/quickstart,
    changelog /v2/changelog, llms.txt saved locally at llms/scope3-interchange-llms.txt, platform Agent Skill at skills/scope3-interchange.md.
    The canonical DeveloperPortal / Documentation / APIReference / GettingStarted / ChangeLog / LLMsTxt / AgentSkill pointers
    above already carry one URL each; this entry records the second, newer documentation surface without duplicating those
    types.
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 16
  pass: local-v1
x-a2a:
  verified: true
  probed: '2026-09-26'
  url: https://docs.interchange.io/.well-known/agent-card.json
  grade: conformant
  protocol_version: '0.3'
  control: 404

Scope3 API — frequently asked questions

Does Scope3 have an API?

Yes. APIs.io lists 51 APIs from Scope3, including Scope3 AI Impact Measurement API, Scope3 Benchmarks API and Scope3 Creative API, and 48 more.

Is there an OpenAPI specification for the Scope3 API?

Yes. APIs.io indexes 51 OpenAPI specifications for Scope3, each linked for download from this page.

How do I authenticate with the Scope3 API?

Scope3 documents its authentication (http/oauth2/openIdConnect · 4 schemes). The details are profiled on APIs.io as Scope3 Authentication.

How much does the Scope3 API cost?

Scope3 publishes its prices; its Pay as you go plan is $0 as of 2026-10-28. APIs.io lists 3 pricing plans for Scope3, with each plan's price, limits and inclusions under Pricing on this page.

Does Scope3 have an MCP server?

Yes. APIs.io lists 1 MCP server for Scope3: Remote MCP server at api.agentic.scope3.com over HTTP; 6 tools listed.

Is the Scope3 API ready for AI agents?

Scope3 has a Kin Score of 73.8 out of 100 (exemplar) and an Agent Readiness score of 64.3 (agent-native), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/scope3"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/scope3/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/scope3/evidence"

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