Nervos

Nervos is the organization behind Nervos CKB (Common Knowledge Base), a proof-of-work layer 1 blockchain built around the Cell Model - a flexible, UTXO-like state model - and CKB-VM, a RISC-V virtual machine for on-chain scripts. Developers interact with the network through a public JSON-RPC 2.0 API (HTTP, TCP, and WebSocket subscriptions), official SDKs for JavaScript/TypeScript (CCC), Rust, Go, and Java, and CLI tooling (ckb-cli, OffCKB). The docs surface first-class AI resources including an llms.txt map, agent instructions, packaged CKB Dev Skills, and a CKB AI MCP server. Nervos was surfaced as a portfolio company of Multicoin Capital and enriched from its public developer documentation.

Nervos publishes 1 API on the APIs.io network. Tagged areas include Company, Crypto Web3, Blockchain, Layer 1, and JSON-RPC.

The Nervos catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Nervos’ developer surface includes documentation, getting-started guide, API reference, changelog, CLI, authentication, sandbox, and 16 more developer resources.

🌐 Visit website 📡 Source on GitHub
34.0/100 thin ▬ flat Agent 43/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
1 APIs 1 MCP Servers
CompanyCrypto Web3BlockchainLayer 1JSON-RPCSmart ContractsWeb3 InfrastructureDeveloper Tools

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 34.0/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 14.3 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 43/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 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 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 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/nervos: 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.

CKB JSON-RPC API

Public JSON-RPC 2.0 interface to Nervos CKB nodes for querying chain state (blocks, transactions, cells), submitting signed transactions, and subscribing to new-tip events over ...

MCP Servers 1

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

nervos-mcp.yml

MCP SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Nervos Ckb Subscriptions

ASYNCAPI

Security Posture 2

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

Nervos Authentication

none · 0 schemes

SECURITY

Nervos Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted
 Sandbox
Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill
 WellKnown
WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Lifecycle
Lifecycle
 Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Webhooks
Webhooks

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs
 CLI
CLI

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 3

Status, limits, changes, and where to get help

ChangeLog
ChangeLog
 Deprecation
Deprecation
 ChangeLog
ChangeLog

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: nervos
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/nervos.png
name: Nervos
description: Nervos is the organization behind Nervos CKB (Common Knowledge Base), a proof-of-work layer 1 blockchain built
  around the Cell Model - a flexible, UTXO-like state model - and CKB-VM, a RISC-V virtual machine for on-chain scripts. Developers
  interact with the network through a public JSON-RPC 2.0 API (HTTP, TCP, and WebSocket subscriptions), official SDKs for
  JavaScript/TypeScript (CCC), Rust, Go, and Java, and CLI tooling (ckb-cli, OffCKB). The docs surface first-class AI resources
  including an llms.txt map, agent instructions, packaged CKB Dev Skills, and a CKB AI MCP server. Nervos was surfaced as
  a portfolio company of Multicoin Capital and enriched from its public developer documentation.
url: https://raw.githubusercontent.com/api-evangelist/nervos/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- multicoin-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Crypto Web3
- Blockchain
- Layer 1
- JSON-RPC
- Smart Contracts
- Web3 Infrastructure
- Developer Tools
apis:
- name: CKB JSON-RPC API
  description: Public JSON-RPC 2.0 interface to Nervos CKB nodes for querying chain state (blocks, transactions, cells), submitting
    signed transactions, and subscribing to new-tip events over WebSocket. Unauthenticated on public endpoints; transaction
    authorization is enforced on-chain by lock scripts and signatures.
  humanURL: https://docs.nervos.org/docs/getting-started/rpcs
  baseURL: https://mainnet.ckb.dev/
  tags:
  - JSON-RPC
  - Blockchain
  - Web3
  properties:
  - type: Documentation
    url: https://docs.nervos.org/docs/getting-started/rpcs
  - type: APIReference
    url: https://github.com/nervosnetwork/ckb/blob/master/rpc/README.md
  - type: Authentication
    url: authentication/nervos-authentication.yml
  - type: Conventions
    url: conventions/nervos-conventions.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://nervos.org
- type: Documentation
  url: https://docs.nervos.org/
- type: GettingStarted
  url: https://docs.nervos.org/docs/getting-started/quick-start
- type: APIReference
  url: https://github.com/nervosnetwork/ckb/blob/master/rpc/README.md
- type: GitHubOrganization
  url: https://github.com/nervosnetwork
- type: ChangeLog
  url: https://github.com/nervosnetwork/ckb/releases
- type: Packages
  url: packages/nervos-packages.yml
- type: SDKs
  url: packages/nervos-packages.yml
- type: CLI
  url: cli/nervos-cli.yml
- type: MCPServer
  url: mcp/nervos-mcp.yml
- type: LLMsTxt
  url: llms/nervos-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Authentication
  url: authentication/nervos-authentication.yml
- type: Conventions
  url: conventions/nervos-conventions.yml
- type: Lifecycle
  url: lifecycle/nervos-lifecycle.yml
- type: Deprecation
  url: lifecycle/nervos-lifecycle.yml
- type: Conformance
  url: conformance/nervos-conformance.yml
- type: Sandbox
  url: sandbox/nervos-sandbox.yml
- type: WellKnown
  url: well-known/nervos-well-known.yml
- type: DomainSecurity
  url: security/nervos-domain-security.yml
- type: ErrorCatalog
  url: errors/nervos-error-codes.yml
- type: Webhooks
  url: asyncapi/nervos-ckb-subscriptions.yml
- type: ChangeLog
  name: CKB node releases (structured)
  url: changelog/nervos-changelog.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 3
  pass: local-v1