CNaught

CNaught provides a science‑backed platform that helps businesses purchase, manage and retire high‑integrity carbon credits. Their API enables integration of carbon‑credit portfolios, access to Energy Attribute Certificates, and tools for emissions calculations, aiming to simplify climate impact for companies of any size.

CNaught is listed with 1 API on the APIs.io network. Tagged areas include Company, Climate, CarbonCredits, API, and Sustainability.

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

CNaught’s developer surface includes changelog, authentication, documentation, API reference, getting-started guide, engineering blog, pricing, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub

58.8/100 strong Agent 30/100 agent ready Full breakdown ↓
scored 2026-10-09 · rubric v0.23.0

1 API

Company ClimateCarbonCreditsAPISustainability

Kin Score

Kin Score How this is scored →
scored 2026-10-09 · rubric v0.23.0

Composite quality — 58.8/100 · strong

Contract Quality 11.6 / 21

Developer Ergonomics 9.3 / 17

Access Clarity 10.2 / 17

Operational Transparency 4.1 / 11

Contract Governance 8.1 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 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 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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/cnaught: 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 1

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

CNaught API

CNaught API as documented publicly: 7 operations. Contract generated from the documentation by API Evangelist (2026-10-09); not the provider's own document.

Pricing Plans 1

Published pricing tiers and plan structures.

Cnaught Plans Pricing

3 plans

PLANS

Semantic Vocabularies 1

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

Cnaught Context

7 classes · 9 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

CNaught API Rules

11 rules · 9 errors 1 warnings 1 info

SPECTRAL

JSON Schema 6

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

DeleteV1SubaccountsIdResponse

2 properties

JSON SCHEMA

GetV1V1IdIdResponse

2 properties

JSON SCHEMA

GetV1V1IdResponse

2 properties

JSON SCHEMA

PostV1OrdersIdCancelResponse

6 properties

JSON SCHEMA

PostV1OrdersIdResponse

2 properties

JSON SCHEMA

PostV1V1IdRequest

4 properties

JSON SCHEMA

Security Posture 2

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

Cnaught Authentication

1 scheme

SECURITY

Cnaught Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Idempotency

Conventions

Conformance

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

ChangeLog

StatusPage

ChangeLog

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: cnaught
name: CNaught
image: https://www.cnaught.com/api/og?title=Carbon credits you can trust
description: CNaught provides a science‑backed platform that helps businesses purchase, manage and retire high‑integrity carbon
  credits. Their API enables integration of carbon‑credit portfolios, access to Energy Attribute Certificates, and tools for
  emissions calculations, aiming to simplify climate impact for companies of any size.
url: https://raw.githubusercontent.com/api-evangelist/cnaught/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-09 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-09'
modified: '2026-10-09'
tags:
- Company
- Climate
- CarbonCredits
- API
- Sustainability
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/cnaught-plans-pricing.yml
- type: Spectral
  url: rules/cnaught-rules.yml
- type: JSONLD
  url: json-ld/cnaught-context.jsonld
- type: Vocabulary
  url: vocabulary/cnaught-vocabulary.yml
- type: DataModel
  url: data-model/cnaught-data-model.yml
- type: ChangeLog
  url: changelog/cnaught-changelog.yml
- type: Idempotency
  url: conventions/cnaught-conventions.yml
- type: Conventions
  url: conventions/cnaught-conventions.yml
- type: Authentication
  url: authentication/cnaught-authentication.yml
- type: Conformance
  url: conformance/cnaught-conformance.yml
- type: LLMsTxt
  url: llms/cnaught-llms.txt
- type: Hosts
  url: hosts/cnaught-hosts.yml
- type: Vendors
  url: vendors/cnaught-vendors.yml
- type: SDKs
  url: packages/cnaught-packages.yml
- type: Packages
  url: packages/cnaught-packages.yml
- type: TermsOfService
  url: https://www.cnaught.com/terms
- type: StatusPage
  url: https://status.cnaught.com/
- type: PrivacyPolicy
  url: https://www.cnaught.com/privacy
- type: GitHubOrganization
  url: https://github.com/cnaught-inc
- type: ChangeLog
  url: https://docs.cnaught.com/changelog
- type: DomainSecurity
  url: security/cnaught-domain-security.yml
- type: Website
  url: https://www.cnaught.com/
- type: Documentation
  url: https://docs.cnaught.com/
- type: APIReference
  url: https://docs.cnaught.com/api-reference/introduction
- type: GettingStarted
  url: https://docs.cnaught.com/quickstart
- type: Blog
  url: https://www.cnaught.com/blog
- type: Pricing
  url: https://www.cnaught.com/pricing
- type: Support
  url: https://www.cnaught.com/contact-sales
apis:
- aid: cnaught:cnaught-api
  name: CNaught API
  description: 'CNaught API as documented publicly: 7 operations. Contract generated from the documentation by API Evangelist
    (2026-10-09); not the provider''s own document.'
  humanURL: https://docs.cnaught.com/api-reference/orders/cancel-order.md
  baseURL: https://api.cnaught.com
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/cnaught-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/cnaught-post-v1-orders-id-cancel-response-schema.json
  - type: JSONSchema
    url: json-schema/cnaught-post-v1-v1-id-request-schema.json
  - type: JSONSchema
    url: json-schema/cnaught-delete-v1-subaccounts-id-response-schema.json
  - type: JSONSchema
    url: json-schema/cnaught-get-v1-v1-id-id-response-schema.json
  - type: JSONSchema
    url: json-schema/cnaught-get-v1-v1-id-response-schema.json
  - type: JSONSchema
    url: json-schema/cnaught-post-v1-orders-id-response-schema.json
x-enrichment:
  date: '2026-10-09'
  status: enriched
  artifacts_added: 26
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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