Scope3

Scope3 is the source of truth for greenhouse-gas emissions data in media and advertising, and operates the Interchange for agent-to-agent (agentic) advertising. 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-powered programmatic advertising through an agentic buyer/storefront platform. Scope3 exposes three public API 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 Agentic Platform at api.agentic.scope3.com with a hosted MCP server, a `scope3` CLI, and published buyer/storefront Agent Skills. Backed by GV.

Scope3 publishes 14 APIs on the APIs.io network, including AI Impact Measurement API, Benchmarks API, Creative API, and 11 more. Tagged areas include Company, Enterprise, Advertising, Carbon Emissions, and Sustainability.

The Scope3 catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Scope3’s developer surface includes authentication, CLI, changelog, sandbox, documentation, API reference, getting-started guide, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub
53.7/100 developing ▬ flat Agent 71/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
15 APIs 1 MCP Servers
CompanyEnterpriseAdvertisingCarbon EmissionsSustainabilityAdTechMeasurementArtificial IntelligenceAgentic

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 53.7/100 · developing
Contract Quality 15.2 / 25
Developer Ergonomics 17.4 / 20
Commercial Clarity 6.3 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 71/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/scope3: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 15

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

Scope3 Agentic Platform API

The Interchange for agent-to-agent advertising: buyer and storefront personas for inventory discovery, campaign and creative orchestration, bundles, signals, and billing, served...

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.

Scroll for all 15

MCP Servers 1

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

scope3-mcp.yml

MCP SERVER

Event Specifications 1

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

Scope3 Webhooks

ASYNCAPI

Security Posture 2

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

Scope3 Authentication

http · 1 scheme

SECURITY

Scope3 Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Scope3 Agentic Access

30 operations · 17 acting

30 operations · 17 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox
Sandbox
 DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

ErrorCatalog
ErrorCatalog
 Conventions
Conventions
 Lifecycle
Lifecycle
 Conformance
Conformance
 DataModel
DataModel
 Webhooks
Webhooks

Build 4

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs
 CLI
CLI
 GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 3

Status, limits, changes, and where to get help

Deprecation
Deprecation
 ChangeLog
ChangeLog
 Support
Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: scope3
name: Scope3
description: 'Scope3 is the source of truth for greenhouse-gas emissions data in media and advertising, and operates the Interchange
  for agent-to-agent (agentic) advertising. 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-powered programmatic
  advertising through an agentic buyer/storefront platform. Scope3 exposes three public API 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 Agentic Platform at api.agentic.scope3.com with a hosted MCP server, a `scope3` CLI, and published buyer/storefront
  Agent Skills. Backed by GV.'
url: https://raw.githubusercontent.com/api-evangelist/scope3/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  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: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Enterprise
- Advertising
- Carbon Emissions
- Sustainability
- AdTech
- Measurement
- Artificial Intelligence
- Agentic
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Scope3 Agentic Platform API
  description: 'The Interchange for agent-to-agent advertising: buyer and storefront personas for inventory discovery, campaign
    and creative orchestration, bundles, signals, and billing, served over REST and a hosted MCP server.'
  humanURL: https://docs.scope3.com/docs/atp-getting-started
  baseURL: https://api.agentic.scope3.com
  tags:
  - Agentic
  - Advertising
  - AdTech
- 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://api.scope3.com/v2
  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://api.scope3.com/v2
  tags:
  - 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://api.scope3.com/v2
  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://api.scope3.com/v2
  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://api.scope3.com/v2
  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://api.scope3.com/v2
  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://api.scope3.com/v2
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/scope3-status-api-openapi.yml
common:
- 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://scope3.com/agentic-advertising/pricing/
- type: TermsOfService
  url: https://scope3.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://scope3.com/privacy-policy
- type: Website
  url: https://scope3.com
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 26
  pass: local-v1