Emitwise

Emitwise is a London-based carbon accounting and Scope 3 reporting platform that uses AI to help large enterprises measure, manage, and reduce their product carbon footprint (PCF) and supply-chain greenhouse-gas emissions. The platform ingests spend data, activity data, and supplier information, auto-classifies suppliers, and produces audit-ready emissions reporting aligned with the GHG Protocol (Scope 1, 2, and 3) and frameworks such as CDP and CSRD. The Emitwise developer API at api.emitwise.com exposes facilities, projects, activity-data files, schema metadata, and aggregated supplier emissions data so customers can integrate carbon accounting into procurement, ERP, and sustainability reporting systems. Access is granted per-customer through Emitwise CSMs; API keys are generated from the Company settings area of the dashboard. In July 2025, Emitwise was acquired by Green Project Technologies; the Emitwise platform and team are now part of Green Project's end-to-end decarbonization solutions, while the existing Emitwise developer portal and API endpoints remain live for customers.

Emitwise publishes 5 APIs on the APIs.io network, including Facilities API, Files API, Projects API, and 2 more. Tagged areas include Carbon Accounting, Greenhouse Gas, Scope 3, Supply Chain Emissions, and Product Carbon Footprint.

The Emitwise catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Emitwise’s developer surface includes authentication, documentation, privacy policy, engineering blog, GitHub presence, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.0/100 thin ▬ flat Agent 17/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Carbon Accounting Greenhouse Gas Scope 3Supply Chain EmissionsProduct Carbon Footprint Sustainability ESG CDP CSRD GHG Protocol Climate Procurement Artificial Intelligence

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 36.0/100 · thin

Contract Quality 12.2 / 19

Developer Ergonomics 2.7 / 15

Access Clarity 5.1 / 15

Operational Transparency 0.5 / 10

Contract Governance 0.9 / 9

Discoverability 4.4 / 8

Regulatory Posture 5.1 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities 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/.

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 github.com/api-evangelist/emitwise: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 5

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

Emitwise Facilities API

Physical or virtual locations whose emissions are tracked.

Emitwise Files API

Activity-data file uploads used to calculate emissions.

Emitwise Projects API

Sustainability initiatives that group emissions data.

Emitwise Schema API

Activity data schema definitions.

Emitwise Suppliers API

Aggregated Scope 3 supplier emissions data.

Open Collections 7

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

API Collection

OPEN COLLECTION

Emitwise API

OPEN COLLECTION

Emitwise Facilities API

OPEN COLLECTION

Emitwise Facilities Files API

OPEN COLLECTION

Emitwise Facilities Projects API

OPEN COLLECTION

Emitwise Facilities Schema API

OPEN COLLECTION

Emitwise Facilities Suppliers API

OPEN COLLECTION

Scroll for all 7

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Emitwise Context

17 classes · 1 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Emitwise API Rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Emitwise Facility

5 properties

JSON SCHEMA

Emitwise Supplier

6 properties

JSON SCHEMA

Security Posture 2

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

Emitwise Authentication

http · 1 scheme

SECURITY

Emitwise Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Emitwise Agentic Access

7 operations · 2 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

APIPortal

APIPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Contact

Contact

Commercial 2

Pricing, plans, and the legal terms of use

Privacy

Privacy

TermsOfService

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 4

Properties that don't map to a standard resource type

Dashboard

PCFCalculator

CookiePolicy

ParentCompany

Source (apis.yml)

aid: emitwise
name: Emitwise
description: Emitwise is a London-based carbon accounting and Scope 3 reporting platform that uses AI to help large enterprises
  measure, manage, and reduce their product carbon footprint (PCF) and supply-chain greenhouse-gas emissions. The platform
  ingests spend data, activity data, and supplier information, auto-classifies suppliers, and produces audit-ready emissions
  reporting aligned with the GHG Protocol (Scope 1, 2, and 3) and frameworks such as CDP and CSRD. The Emitwise developer
  API at api.emitwise.com exposes facilities, projects, activity-data files, schema metadata, and aggregated supplier emissions
  data so customers can integrate carbon accounting into procurement, ERP, and sustainability reporting systems. Access is
  granted per-customer through Emitwise CSMs; API keys are generated from the Company settings area of the dashboard. In July
  2025, Emitwise was acquired by Green Project Technologies; the Emitwise platform and team are now part of Green Project's
  end-to-end decarbonization solutions, while the existing Emitwise developer portal and API endpoints remain live for customers.
type: Index
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
position: Producing
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/emitwise.png
tags:
- Carbon Accounting
- Greenhouse Gas
- Scope 3
- Supply Chain Emissions
- Product Carbon Footprint
- Sustainability
- ESG
- CDP
- CSRD
- GHG Protocol
- Climate
- Procurement
- Artificial Intelligence
tags_raw:
- Carbon Accounting
- Greenhouse Gas
- Scope 3
- Supply Chain Emissions
- Product Carbon Footprint
- Sustainability
- ESG
- CDP
- CSRD
- GHG Protocol
- Climate
- Procurement
- AI
url: https://raw.githubusercontent.com/api-evangelist/emitwise/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.23'
apis:
- aid: emitwise:emitwise-facilities-api
  name: Emitwise Facilities API
  description: Physical or virtual locations whose emissions are tracked.
  humanURL: https://docs.emitwise.com/
  tags:
  - Facilities
  properties:
  - type: OpenAPI
    url: openapi/emitwise-facilities-api-openapi.yml
  - type: Documentation
    url: https://docs.emitwise.com/
  - type: Documentation
    url: https://docs.emitwise.com/v1
  - type: Authentication
    url: https://docs.emitwise.com/#authentication
  - type: Signup
    url: https://docs.emitwise.com/#requesting-access
  - type: JSONSchema
    url: json-schema/emitwise-facility-schema.json
  - type: JSONSchema
    url: json-schema/emitwise-supplier-schema.json
  - type: JSONLD
    url: json-ld/emitwise-context.jsonld
- aid: emitwise:emitwise-files-api
  name: Emitwise Files API
  description: Activity-data file uploads used to calculate emissions.
  humanURL: https://docs.emitwise.com/
  tags:
  - File
  tags_raw:
  - Files
  properties:
  - type: OpenAPI
    url: openapi/emitwise-files-api-openapi.yml
  - type: Documentation
    url: https://docs.emitwise.com/
  - type: Documentation
    url: https://docs.emitwise.com/v1
  - type: Authentication
    url: https://docs.emitwise.com/#authentication
  - type: Signup
    url: https://docs.emitwise.com/#requesting-access
  - type: JSONSchema
    url: json-schema/emitwise-facility-schema.json
  - type: JSONSchema
    url: json-schema/emitwise-supplier-schema.json
  - type: JSONLD
    url: json-ld/emitwise-context.jsonld
- aid: emitwise:emitwise-projects-api
  name: Emitwise Projects API
  description: Sustainability initiatives that group emissions data.
  humanURL: https://docs.emitwise.com/
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/emitwise-projects-api-openapi.yml
  - type: Documentation
    url: https://docs.emitwise.com/
  - type: Documentation
    url: https://docs.emitwise.com/v1
  - type: Authentication
    url: https://docs.emitwise.com/#authentication
  - type: Signup
    url: https://docs.emitwise.com/#requesting-access
  - type: JSONSchema
    url: json-schema/emitwise-facility-schema.json
  - type: JSONSchema
    url: json-schema/emitwise-supplier-schema.json
  - type: JSONLD
    url: json-ld/emitwise-context.jsonld
- aid: emitwise:emitwise-schema-api
  name: Emitwise Schema API
  description: Activity data schema definitions.
  humanURL: https://docs.emitwise.com/
  tags:
  - Schema
  properties:
  - type: OpenAPI
    url: openapi/emitwise-schema-api-openapi.yml
  - type: Documentation
    url: https://docs.emitwise.com/
  - type: Documentation
    url: https://docs.emitwise.com/v1
  - type: Authentication
    url: https://docs.emitwise.com/#authentication
  - type: Signup
    url: https://docs.emitwise.com/#requesting-access
  - type: JSONSchema
    url: json-schema/emitwise-facility-schema.json
  - type: JSONSchema
    url: json-schema/emitwise-supplier-schema.json
  - type: JSONLD
    url: json-ld/emitwise-context.jsonld
- aid: emitwise:emitwise-suppliers-api
  name: Emitwise Suppliers API
  description: Aggregated Scope 3 supplier emissions data.
  humanURL: https://docs.emitwise.com/
  tags:
  - Suppliers
  properties:
  - type: OpenAPI
    url: openapi/emitwise-suppliers-api-openapi.yml
  - type: Documentation
    url: https://docs.emitwise.com/
  - type: Documentation
    url: https://docs.emitwise.com/v1
  - type: Authentication
    url: https://docs.emitwise.com/#authentication
  - type: Signup
    url: https://docs.emitwise.com/#requesting-access
  - type: JSONSchema
    url: json-schema/emitwise-facility-schema.json
  - type: JSONSchema
    url: json-schema/emitwise-supplier-schema.json
  - type: JSONLD
    url: json-ld/emitwise-context.jsonld
common:
- type: AgenticAccess
  url: agentic-access/emitwise-agentic-access.yml
- type: DomainSecurity
  url: security/emitwise-domain-security.yml
- type: Authentication
  url: authentication/emitwise-authentication.yml
- type: Website
  url: https://emitwise.com/
- type: Documentation
  url: https://docs.emitwise.com/
- type: APIPortal
  url: https://docs.emitwise.com/
- type: Dashboard
  url: https://dash.emitwise.com/
- type: PCFCalculator
  url: https://emitwise.com/pcf-calculator/
- type: Solutions
  url: https://emitwise.com/solutions/procurewise-supply-chain-emissions/
- type: Privacy
  url: https://emitwise.com/privacy/
- type: TermsOfService
  url: https://emitwise.com/terms/
- type: CookiePolicy
  url: https://emitwise.com/cookie-policy/
- type: Blog
  url: https://emitwise.com/home/feed/
- type: ParentCompany
  url: https://www.greenprojecttech.com/
- type: Contact
  url: https://www.greenprojecttech.com/contact/get-in-touch
- type: GitHub
  url: https://github.com/emitwise
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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