BeZero Carbon

BeZero Carbon is a global carbon ratings agency for the Voluntary Carbon Market, founded in London in 2020. It publishes an independent, eight-point BeZero Carbon Rating (AAA to D) expressing the likelihood that a given carbon credit achieves a tonne of CO2e avoided or removed, alongside risk factor scores, summary analysis, methodology assessments and reference data across forestry, blue carbon, soil and agriculture, cookstoves, engineered removals and superpollutant projects. The BeZero Ratings API (v3, OAuth 2.0 client credentials) lets exchanges, marketplaces, brokers, data providers and corporate buyers pull ratings, project reference data and premium risk factor scores directly into their own platforms, and its ratings are distributed through Bloomberg, ICE, CUSIP and LSEG.

BeZero Carbon publishes 2 API contracts indexed on the APIs.io network: Projects API and Ratings API. Tagged areas include Company, Carbon Ratings, Carbon Markets, Climate, and Sustainability.

The BeZero Carbon catalog on APIs.io includes 1 Spectral governance ruleset.

BeZero Carbon’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, signup flow, authentication, and 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

44.4/100 developing ▬ flat Agent 40/100 agent ready Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessSelf serve

1 published contract 2 Agent Skills

CompanyCarbon RatingsCarbon Markets Climate Sustainability ESG Ratings Reference Data Market Intelligence Risk Analysis

What this lets a business do 1

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

Sustainability Management

BC-740

Ratings

GET /ratings GET /ratings/{ratingID} GET /ratings/{ratingID}/risk-factors

Kin Score

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

Composite quality — 44.4/100 · developing

Contract Quality 11.7 / 21

Developer Ergonomics 9.0 / 17

Access Clarity 3.6 / 17

Operational Transparency 3.5 / 11

Contract Governance 1.9 / 10

Discoverability 5.6 / 9

Regulatory Posture 5.1 / 15

Agent readiness — 40/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 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 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

3 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 21.1 — up to +15.8 composite points
Contract Quality scores 55.0 — up to +11.3 composite points
Contract Governance scores 18.2 — up to +9.8 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/bezero-carbon/apis.yml: open an issue on github.com/api-evangelist/bezero-carbon 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
Carbon Markets and Environmental Services (carbon removal, waste, mining)	undeclared	-	-	-

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 2

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.

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 2

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

BeZero Carbon Projects API

The Projects API from BeZero Carbon — 1 operation(s) for projects.

BeZero Carbon Ratings API

The Ratings API from BeZero Carbon — 3 operation(s) for ratings.

Open Collections 2

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

BeZero Ratings Projects API

OPEN COLLECTION

BeZero Ratings API

OPEN COLLECTION

Agent Skills 2

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

Screen a carbon project on BeZero risk factors

AGENT SKILL

Sync BeZero carbon credit ratings

AGENT SKILL

BeZero Carbon API pricing

Rate limits

All requests: 1000 requests per minute

Rate-limit details →

Rate Limits 1

Documented rate limits and quota policies.

Bezero Carbon Rate Limits

1 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

BeZero Carbon API Rules

54 rules · 52 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

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.

Bezero Carbon Ratings Overlay

8 actions · documentation

DERIVED

Security Posture 2

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

Bezero Carbon Authentication

oauth2 · 1 scheme

SECURITY

Bezero Carbon Domain Security

TLSv1.2 · HSTS · DNSSEC · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Bezero Carbon Scopes

4 scopes · clientCredentials

4 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Examples

Packages

ToolCrosswalk

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

Deprecation

Deprecation

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: bezero-carbon
name: BeZero Carbon
description: BeZero Carbon is a global carbon ratings agency for the Voluntary Carbon Market, founded in London in 2020. It
  publishes an independent, eight-point BeZero Carbon Rating (AAA to D) expressing the likelihood that a given carbon credit
  achieves a tonne of CO2e avoided or removed, alongside risk factor scores, summary analysis, methodology assessments and
  reference data across forestry, blue carbon, soil and agriculture, cookstoves, engineered removals and superpollutant projects.
  The BeZero Ratings API (v3, OAuth 2.0 client credentials) lets exchanges, marketplaces, brokers, data providers and corporate
  buyers pull ratings, project reference data and premium risk factor scores directly into their own platforms, and its ratings
  are distributed through Bloomberg, ICE, CUSIP and LSEG.
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: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://bezerocarbon.com/images/metadata-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/bezero-carbon/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.23'
created: '2026-08-07'
modified: '2026-08-07'
x-docs-platform: redocly
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-20
tags:
- Company
- Carbon Ratings
- Carbon Markets
- Climate
- Sustainability
- ESG
- Ratings
- Reference Data
- Market Intelligence
- Risk Analysis
apis:
- aid: bezero-carbon:bezero-carbon-projects-api
  name: BeZero Carbon Projects API
  description: The Projects API from BeZero Carbon — 1 operation(s) for projects.
  humanURL: https://api-docs.bezerocarbonmarkets.com/
  baseURL: https://api.bezerocarbonmarkets.com/v3
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/bezero-carbon-projects-api-openapi.yml
  - type: APIReference
    url: https://api-docs.bezerocarbonmarkets.com/
  - type: Documentation
    url: https://api-docs.bezerocarbonmarkets.com/
- aid: bezero-carbon:bezero-carbon-ratings-api
  name: BeZero Carbon Ratings API
  description: The Ratings API from BeZero Carbon — 3 operation(s) for ratings.
  humanURL: https://api-docs.bezerocarbonmarkets.com/
  baseURL: https://api.bezerocarbonmarkets.com/v3
  tags:
  - Ratings
  properties:
  - type: OpenAPI
    url: openapi/bezero-carbon-ratings-api-openapi.yml
  - type: APIReference
    url: https://api-docs.bezerocarbonmarkets.com/
  - type: Documentation
    url: https://api-docs.bezerocarbonmarkets.com/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: CapabilityMap
  url: capabilities/bezero-carbon-capability-edges.yml
  name: BeZero Carbon Business Capability Map
- type: Website
  url: https://bezerocarbon.com/
- type: DeveloperPortal
  url: https://api-docs.bezerocarbonmarkets.com/
- type: Documentation
  url: https://api-docs.bezerocarbonmarkets.com/
- type: APIReference
  url: https://api-docs.bezerocarbonmarkets.com/
- type: GettingStarted
  url: https://api-docs.bezerocarbonmarkets.com/#section/Authentication-and-credential-provision
- type: Support
  url: mailto:engineering@bezerocarbon.com
- type: Blog
  url: https://bezerocarbon.com/insights
- type: GitHubOrganization
  url: https://github.com/BeZeroCarbon
- type: SignUp
  url: https://bezerocarbonmarkets.com/
- type: TermsOfService
  url: https://legal.bezerocarbon.com/legal-hub/terms-of-use-976d0f8d
- type: PrivacyPolicy
  url: https://legal.bezerocarbon.com/legal-hub/privacy-policy-b92ddd45
- type: OpenAPI
  url: openapi/_original/bezero-carbon-ratings-openapi.yml
- type: Authentication
  url: authentication/bezero-carbon-authentication.yml
- type: OAuthScopes
  url: scopes/bezero-carbon-scopes.yml
- type: DomainSecurity
  url: security/bezero-carbon-domain-security.yml
- type: Conventions
  url: conventions/bezero-carbon-conventions.yml
- type: ErrorCatalog
  url: errors/bezero-carbon-problem-types.yml
- type: Lifecycle
  url: lifecycle/bezero-carbon-lifecycle.yml
- type: Deprecation
  url: https://legal.bezerocarbon.com/legal-hub/product-specific-terms-ffc0b2c9
- type: Conformance
  url: conformance/bezero-carbon-conformance.yml
- type: DataModel
  url: data-model/bezero-carbon-data-model.yml
- type: Examples
  url: examples/bezero-carbon-examples.yml
- type: RateLimits
  url: rate-limits/bezero-carbon-rate-limits.yml
- type: Packages
  url: packages/bezero-carbon-packages.yml
- type: WellKnown
  url: well-known/bezero-carbon-well-known.yml
- type: X-MCPServerCandidate
  url: mcp/bezero-carbon-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: ToolCrosswalk
  url: mcp/bezero-carbon-tool-crosswalk.yml
- type: LLMsTxt
  url: llms/bezero-carbon-llms.txt
- type: Overlay
  url: overlays/bezero-carbon-ratings-overlay.yaml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-08-07'
  status: enriched
  artifacts_added: 15
  pass: local-v1

BeZero Carbon API — frequently asked questions

Does BeZero Carbon have an API?

Yes. APIs.io lists 2 APIs from BeZero Carbon, including BeZero Carbon Projects API and BeZero Carbon Ratings API.

Is there an OpenAPI specification for the BeZero Carbon API?

Yes. APIs.io indexes 2 OpenAPI specifications for BeZero Carbon, each linked for download from this page.

How do I authenticate with the BeZero Carbon API?

BeZero Carbon documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Bezero Carbon Authentication.

Is the BeZero Carbon API ready for AI agents?

BeZero Carbon has a Kin Score of 44.4 out of 100 (developing) and an Agent Readiness score of 39.6 (agent-ready), scored by API Evangelist on 2026-11-06.

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