Rainbow

Rainbow — formerly Riverse, whose riverse.io domain now 301s to rainbowstandard.io — is a carbon crediting programme and registry that certifies and issues Rainbow Carbon Credits (RCCs) from engineered carbon removal and greenhouse-gas reduction projects across biochar, BiCRS/BioCCS, enhanced rock weathering, ex-situ mineralization, biogas from anaerobic digestion, biobased construction materials, battery second life and electronics refurbishment. The programme is ICVCM Core-Carbon-Principles approved, ICROA endorsed, approved as a Frontier credit issuer, and runs EU CRCF-compliant plus CORSIA and Paris Agreement Article 6 crediting tracks. It operates two platforms: Arc (arc.rainbowstandard.io), the project-developer certification and MRV platform launched October 2025, and the public Rainbow Registry (registry.rainbowstandard.io) where every project, credit block, serial number and retirement is published. Its public surface is a 163-page GitBook documentation hub of standard rules, procedures, methodologies, fees and governance policies, served with a real llms.txt and a Content-Signal AI-usage declaration. No OpenAPI, AsyncAPI, GraphQL SDL, SDK, MCP server or A2A agent card is served on any Rainbow host; the only public acknowledgement that an API exists at all is a single line in the published fee schedule confirming that API connections carry no additional cost.

Rainbow is profiled on the APIs.io network. Tagged areas include Company, Carbon Credits, Carbon Removal, Carbon Markets, and Sustainability.

Rainbow’s developer surface includes documentation, getting-started guide, support, engineering blog, pricing, changelog, and 18 more developer resources.

34.3/100 thin ▬ flat Agent 6/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessPaid
0 APIs
CompanyCarbon CreditsCarbon RemovalCarbon MarketsSustainabilityClimateRegistryCertificationMRVVerificationBiochar

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 34.3/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 5.7 / 20
Access Clarity 15.8 / 20
Operational Transparency 4.4 / 13
Contract Governance 2.6 / 12
Discoverability 5.7 / 10
Agent readiness — 6/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 3 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
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/riverse: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Pricing Plans 1

Published pricing tiers and plan structures.

Riverse Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Riverse Rate Limits

0 limits

RATE LIMITS

Security Posture 3

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

Riverse Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Riverse Vulnerability Disclosure

security.txt · contact published

SECURITY

Riverse Trust Center

note, programme, information_security

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Access & Security 6

Authentication, authorization, and security posture

Operate 4

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: riverse
accessModel:
  pricing: paid
  onboarding: request-access
  trial: false
  try_now: false
  public: false
  label: Customer-only
  confidence: medium
  source:
  - https://docs.rainbowstandard.io/other/terms-and-contracts/rainbow-standard-and-registry-fees
  - https://rainbowstandard.io/get-started
  generated: '2026-08-17'
  method: searched
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/riverse.png
name: Rainbow
x-former-name: Riverse
description: 'Rainbow — formerly Riverse, whose riverse.io domain now 301s to rainbowstandard.io — is a carbon crediting programme
  and registry that certifies and issues Rainbow Carbon Credits (RCCs) from engineered carbon removal and greenhouse-gas reduction
  projects across biochar, BiCRS/BioCCS, enhanced rock weathering, ex-situ mineralization, biogas from anaerobic digestion,
  biobased construction materials, battery second life and electronics refurbishment. The programme is ICVCM Core-Carbon-Principles
  approved, ICROA endorsed, approved as a Frontier credit issuer, and runs EU CRCF-compliant plus CORSIA and Paris Agreement
  Article 6 crediting tracks. It operates two platforms: Arc (arc.rainbowstandard.io), the project-developer certification
  and MRV platform launched October 2025, and the public Rainbow Registry (registry.rainbowstandard.io) where every project,
  credit block, serial number and retirement is published. Its public surface is a 163-page GitBook documentation hub of standard
  rules, procedures, methodologies, fees and governance policies, served with a real llms.txt and a Content-Signal AI-usage
  declaration. No OpenAPI, AsyncAPI, GraphQL SDL, SDK, MCP server or A2A agent card is served on any Rainbow host; the only
  public acknowledgement that an API exists at all is a single line in the published fee schedule confirming that API connections
  carry no additional cost.'
url: https://raw.githubusercontent.com/api-evangelist/riverse/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- techstars
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-17'
tags:
- Company
- Carbon Credits
- Carbon Removal
- Carbon Markets
- Sustainability
- Climate
- Registry
- Certification
- MRV
- Verification
- Biochar
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/riverse-domain-security.yml
- type: Website
  url: https://rainbowstandard.io/
- type: Documentation
  name: Rainbow Standard Documentation
  url: https://docs.rainbowstandard.io/
- type: Registry
  name: Rainbow Registry — public credit registry
  url: https://registry.rainbowstandard.io/
- type: GettingStarted
  name: Get started as a project developer
  url: https://rainbowstandard.io/get-started
- type: Support
  name: General inquiries
  url: https://rainbowstandard.io/general-inquiries
- type: Blog
  name: Rainbow Updates
  url: https://rainbowstandard.io/updates
- type: Pricing
  name: Rainbow Standard and Registry Fees
  url: https://docs.rainbowstandard.io/other/terms-and-contracts/rainbow-standard-and-registry-fees
- type: Plans
  url: plans/riverse-plans-pricing.yml
- type: TermsOfService
  name: User Terms & Guidelines
  url: https://docs.rainbowstandard.io/other/terms-and-contracts
- type: PrivacyPolicy
  url: https://docs.rainbowstandard.io/other/terms-and-contracts/privacy-policy
- type: LLMsTxt
  url: llms/riverse-llms.txt
- type: ContentSignal
  name: Content Signals declaration in docs robots.txt
  url: https://docs.rainbowstandard.io/robots.txt
- type: Vocabulary
  name: Rainbow Standard Glossary
  url: vocabulary/riverse-vocabulary.yml
- type: ChangeLog
  url: changelog/riverse-changelog.yml
- type: ChangeLog
  name: Rainbow Standard Rules version history
  url: https://docs.rainbowstandard.io/rainbow-standard-documents/rainbow-standard-rules/version-history
- type: Lifecycle
  url: lifecycle/riverse-lifecycle.yml
- type: Deprecation
  name: Standard and methodology revision, discontinuation and archival policy
  url: https://docs.rainbowstandard.io/rainbow-standard-documents/procedures-manual/standard-and-methodologies
- type: Conformance
  url: conformance/riverse-conformance.yml
- type: Compliance
  name: Governance & Integrity — KYC, AML, anti-bribery, COI, complaints and CSR policies
  url: https://docs.rainbowstandard.io/other/governance-and-integrity
- type: VulnerabilityDisclosure
  url: security/riverse-vulnerability-disclosure.yml
- type: Security
  name: Registry incident and vulnerability reporting procedure
  url: https://docs.rainbowstandard.io/rainbow-standard-documents/procedures-manual/registry-requirements
- type: TrustCenter
  url: security/riverse-trust-center.yml
- type: Compliance
  name: Administrative Oversight Record — published twice-yearly Registry IT audits
  url: https://docs.rainbowstandard.io/other/administrative-oversight
x-coverage:
  state: gated
  reason: customer-only-docs
  detail: Rainbow's own published fee schedule confirms an API exists — "Rainbow does not charge additional costs for retirement,
    transfers or API connections" — but the connection is only available to Arc/Registry account holders and not one of the
    163 public documentation pages describes an endpoint, base URL, auth model or spec.
  evidence:
  - url: https://docs.rainbowstandard.io/other/terms-and-contracts/rainbow-standard-and-registry-fees.md
    status: 200
  - url: https://docs.rainbowstandard.io/llms.txt
    status: 200
  - url: https://arc.rainbowstandard.io/api/openapi.json
    status: 404
  - url: https://registry.rainbowstandard.io/openapi.json
    status: 404
  - url: https://api.rainbowstandard.io/
    status: 0
  checked: '2026-08-17'
x-enrichment:
  date: '2026-08-17'
  status: enriched
  artifacts_added: 10
  pass: local-v1