Celer Network

Celer Network is a blockchain interoperability protocol that enables seamless cross-chain experiences for dApps, assets, and users. Its flagship cBridge is a decentralized cross-chain asset bridge supporting 40+ blockchains with over $14B in cumulative transfer volume, and Celer IM (Inter-chain Messaging) is a framework for building multi-blockchain applications with efficient liquidity, coherent logic, and shared state. For developers, the cBridge gateway exposes a public gRPC-Web / REST API (sgn.gateway.v1.Web) for discovering supported chains and tokens, estimating cross-chain transfer fees, tracking transfer status, and withdrawing liquidity. Celer was surfaced as a portfolio company of Pantera Capital.

Celer Network is listed with 1 API on the APIs.io network. Tagged areas include Company, Cryptocurrency, Blockchain, Interoperability, and Cross-Chain.

Celer Network’s developer surface includes documentation, API reference, support, authentication, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.0/100 thin ▬ flat Agent 17/100 agent aware Front door AI 1/6 silent Heartbeat 41/100 going silent library Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API 1 Agent Skills

Company Cryptocurrency Blockchain Interoperability Cross-Chain Bridge DeFi Web3

Kin Score

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

Composite quality — 27.0/100 · thin

Contract Quality 5.1 / 21

Developer Ergonomics 8.8 / 17

Access Clarity 0.0 / 17

Operational Transparency 1.5 / 11

Contract Governance 0.5 / 10

Discoverability 6.2 / 9

Regulatory Posture 3.4 / 15

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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

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 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/.

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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
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

9 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 0.0 — up to +20.0 composite points
Contract Quality scores 24.0 — up to +19.0 composite points
Contract Governance scores 4.5 — up to +11.5 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/celer-network/apis.yml: open an issue on github.com/api-evangelist/celer-network 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 →

APIs 1

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

cBridge Gateway API

Public gRPC-Web / REST gateway (sgn.gateway.v1.Web) for the cBridge cross-chain bridge: chain and token discovery, transfer fee estimation, transfer status, transfer history, an...

Agent Skills 1

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

Estimate and track a cBridge cross-chain transfer

AGENT SKILL

Security Posture 3

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

Celer Network Authentication

none/signature · 2 schemes

SECURITY

Celer Network Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Celer Network Vulnerability Disclosure

contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

Conformance

Lifecycle

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 4

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 2

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Other 1

Properties that don't map to a standard resource type

Protobuf

Protobuf

Source (apis.yml)

aid: celer-network
name: Celer Network
description: Celer Network is a blockchain interoperability protocol that enables seamless cross-chain experiences for dApps,
  assets, and users. Its flagship cBridge is a decentralized cross-chain asset bridge supporting 40+ blockchains with over
  $14B in cumulative transfer volume, and Celer IM (Inter-chain Messaging) is a framework for building multi-blockchain applications
  with efficient liquidity, coherent logic, and shared state. For developers, the cBridge gateway exposes a public gRPC-Web
  / REST API (sgn.gateway.v1.Web) for discovering supported chains and tokens, estimating cross-chain transfer fees, tracking
  transfer status, and withdrawing liquidity. Celer was surfaced as a portfolio company of Pantera Capital.
url: https://raw.githubusercontent.com/api-evangelist/celer-network/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- pantera-capital
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - none
  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: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
image: https://www.celer.network/favicon.ico
x-docs-platform: gitbook
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-21
x-docs-hosting: github-pages
tags:
- Company
- Cryptocurrency
- Blockchain
- Interoperability
- Cross-Chain
- Bridge
- DeFi
- Web3
tags_raw:
- Company
- Crypto
- Blockchain
- Interoperability
- Cross-Chain
- Bridge
- DeFi
- Web3
apis:
- name: cBridge Gateway API
  description: 'Public gRPC-Web / REST gateway (sgn.gateway.v1.Web) for the cBridge cross-chain bridge: chain and token discovery,
    transfer fee estimation, transfer status, transfer history, and signed liquidity withdrawal.'
  humanURL: https://cbridge-docs.celer.network/developer/cbridge-sdk
  baseURL: https://cbridge-prod2.celer.app
  properties:
  - type: Protobuf
    url: grpc/celer-network-gateway.proto
  - type: Protobuf
    url: grpc/celer-network-cbridge-query.proto
  - type: Protobuf
    url: grpc/celer-network-cbridge.proto
  - type: Documentation
    url: https://cbridge-docs.celer.network/developer/cbridge-sdk
  - type: APIReference
    url: https://cbridge-docs.celer.network/developer/cbridge-sdk
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://blog.celer.network/feed/
  type: BlogRSS
- type: Website
  url: https://www.celer.network/
- type: DeveloperPortal
  url: https://cbridge-docs.celer.network/developer/cbridge-sdk
- type: Documentation
  url: https://cbridge-docs.celer.network/developer/cbridge-sdk
- type: APIReference
  url: https://cbridge-docs.celer.network/developer/cbridge-sdk
- type: GitHubOrganization
  url: https://github.com/celer-network
- type: Support
  url: https://discord.com/invite/Trhab5w
- type: Protobuf
  url: grpc/celer-network-gateway.proto
- type: Packages
  url: packages/celer-network-packages.yml
- type: SDKs
  url: packages/celer-network-packages.yml
- type: X-MCPServerCandidate
  url: mcp/celer-network-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: LLMsTxt
  url: llms/celer-network-llms.txt
- type: ErrorCatalog
  url: errors/celer-network-problem-types.yml
- type: Conventions
  url: conventions/celer-network-conventions.yml
- type: Authentication
  url: authentication/celer-network-authentication.yml
- type: Conformance
  url: conformance/celer-network-conformance.yml
- type: Lifecycle
  url: lifecycle/celer-network-lifecycle.yml
- type: DataModel
  url: data-model/celer-network-data-model.yml
- type: DomainSecurity
  url: security/celer-network-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/celer-network-vulnerability-disclosure.yml
- type: Security
  url: https://immunefi.com/bounty/celer/
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Celer Network API — frequently asked questions

Does Celer Network have an API?

Yes. APIs.io lists 1 API from Celer Network, including cBridge Gateway API.

How do I authenticate with the Celer Network API?

Celer Network uses bearer-token authentication (none/signature · 2 schemes). The details are profiled on APIs.io as Celer Network Authentication.

Is the Celer Network API ready for AI agents?

Celer Network has a Kin Score of 27.0 out of 100 (thin) and an Agent Readiness score of 17.1 (agent-aware), scored by API Evangelist on 2026-11-06.

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