Celo website screenshot

Celo

Celo is a leading Ethereum Layer 2 (L2) blockchain built for real-world usage, mobile-first payments, and stablecoins, run by cLabs and the Celo Foundation. It offers a fully EVM- and Ethereum-JSON-RPC-compatible network reachable through the public Forno RPC endpoints, gas-fee abstraction that lets users pay fees in stablecoins, and a developer stack spanning TypeScript SDKs (ContractKit, @celo/connect, @celo/abis, @celo/identity), the Celo Composer CLI scaffolding tool, a published Model Context Protocol (MCP) server for AI agents, and agent-payment protocols (x402, MPP, ERC-8004). Developers build dApps, MiniPay mini-apps, DeFi, and AI agents against the Celo Mainnet (chain 42220) and the Celo Sepolia testnet.

Celo publishes 1 API on the APIs.io network. Tagged areas include Company, Blockchain, Ethereum L2, Web3, and Stablecoins.

Celo’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, CLI, and 18 more developer resources.

34.7/100 thin ▬ flat Agent 18/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
1 APIs 1 MCP Servers
CompanyBlockchainEthereum L2Web3StablecoinsPaymentsJSON-RPCSmart ContractsAI AgentsDeveloper Tools

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 34.7/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 12.6 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 5.1 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 18/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 12
Machine-Readable Auth 0 / 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 4 / 4
Consent & Bot Identity 3 / 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/celo: 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 1

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

Celo JSON-RPC API

Ethereum-compatible JSON-RPC API for the Celo Layer 2 network, served over the public Forno endpoints. Supports the standard eth_* / net_* / web3_* method set for reading chain ...

MCP Servers 1

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

celo-mcp.yml

MCP SERVER

Security Posture 2

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

Celo Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Celo Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Build 4

SDKs, sample code, and the tooling you integrate with

Access & Security 4

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: celo
name: Celo
description: Celo is a leading Ethereum Layer 2 (L2) blockchain built for real-world usage, mobile-first payments, and stablecoins,
  run by cLabs and the Celo Foundation. It offers a fully EVM- and Ethereum-JSON-RPC-compatible network reachable through
  the public Forno RPC endpoints, gas-fee abstraction that lets users pay fees in stablecoins, and a developer stack spanning
  TypeScript SDKs (ContractKit, @celo/connect, @celo/abis, @celo/identity), the Celo Composer CLI scaffolding tool, a published
  Model Context Protocol (MCP) server for AI agents, and agent-payment protocols (x402, MPP, ERC-8004). Developers build dApps,
  MiniPay mini-apps, DeFi, and AI agents against the Celo Mainnet (chain 42220) and the Celo Sepolia testnet.
url: https://raw.githubusercontent.com/api-evangelist/celo/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- general-catalyst
- version-one-ventures
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://framerusercontent.com/assets/vn0V92oZLFWJWDd5ypiVsqJilg.png
tags:
- Company
- Blockchain
- Ethereum L2
- Web3
- Stablecoins
- Payments
- JSON-RPC
- Smart Contracts
- AI Agents
- Developer Tools
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Celo JSON-RPC API
  description: Ethereum-compatible JSON-RPC API for the Celo Layer 2 network, served over the public Forno endpoints. Supports
    the standard eth_* / net_* / web3_* method set for reading chain state, submitting transactions, calling smart contracts,
    and querying balances, plus Celo fee-abstraction extensions.
  humanURL: https://docs.celo.org/build-on-celo/network-overview
  baseURL: https://forno.celo.org
  properties:
  - type: Documentation
    url: https://docs.celo.org/build-on-celo/network-overview
  - type: MCPServer
    url: mcp/celo-mcp.yml
common:
- type: Website
  url: https://celo.org
- type: DeveloperPortal
  url: https://docs.celo.org
- type: Documentation
  url: https://docs.celo.org
- type: APIReference
  url: https://docs.celo.org/build-on-celo/network-overview
- type: GettingStarted
  url: https://docs.celo.org/build-on-celo/quickstart
- type: Blog
  url: https://blog.celo.org
- type: Support
  url: https://forum.celo.org
- type: GitHubOrganization
  url: https://github.com/celo-org
- type: TermsOfService
  url: https://celo.org/terms-of-use
- type: PrivacyPolicy
  url: https://celo.org/privacy-policy
- type: StatusPage
  url: https://status.celo.org
- type: Packages
  url: packages/celo-packages.yml
- type: SDKs
  url: packages/celo-packages.yml
- type: CLI
  url: cli/celo-cli.yml
- type: MCPServer
  url: mcp/celo-mcp.yml
- type: LLMsTxt
  url: llms/celo-llms.txt
- type: WellKnown
  url: well-known/celo-well-known.yml
- type: SecurityTxt
  url: well-known/celo-security.txt
- type: DomainSecurity
  url: security/celo-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/celo-vulnerability-disclosure.yml
- type: Security
  url: https://celo.org/.well-known/security.txt
- type: Lifecycle
  url: lifecycle/celo-lifecycle.yml
- type: Deprecation
  url: lifecycle/celo-lifecycle.yml
- type: Conformance
  url: conformance/celo-conformance.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence