Ceramic

Ceramic is a decentralized data network built on a protocol for mutable event streams anchored to blockchain. It provides REST APIs for creating and updating mutable data streams, managing decentralized identifiers (DIDs), registering data interests, and reading stream state and events across the composable data network.

Ceramic publishes 10 API contracts indexed on the APIs.io network, including Config API, Debug API, Events API, and 7 more. Tagged areas include Decentralized, Web3, Data Streams, DID, and IPFS.

The Ceramic catalog on APIs.io includes 1 Spectral governance ruleset.

Ceramic’s developer surface includes documentation, GitHub presence, engineering blog, status page, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

19.0/100 emerging ▬ flat Agent 23/100 agent aware Heartbeat 5/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract

Decentralized Web3 Data Streams DID IPFS Blockchain Event StreamingComposeDB

Kin Score

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

Composite quality — 19.0/100 · emerging

Contract Quality 6.7 / 19

Developer Ergonomics 2.5 / 15

Access Clarity 1.2 / 15

Operational Transparency 0.3 / 10

Contract Governance 0.9 / 9

Discoverability 4.3 / 8

Regulatory Posture 0.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 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 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 0 / 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

10 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 7.9 — up to +18.4 composite points
Developer Ergonomics scores 16.7 — up to +16.7 composite points
Contract Quality scores 35.9 — up to +16.0 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/ceramic/apis.yml: open an issue on github.com/api-evangelist/ceramic 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 →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Defense In Depth

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

OpenAPI

measured — observed by APIs.io (published)

APIs 10

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

Ceramic Config API

The Config API from Ceramic — 1 operation(s) for config.

Ceramic Debug API

The Debug API from Ceramic — 1 operation(s) for debug.

Ceramic Events API

The Events API from Ceramic — 2 operation(s) for events.

Ceramic Experimental API

The Experimental API from Ceramic — 2 operation(s) for experimental.

Ceramic Feed API

The Feed API from Ceramic — 2 operation(s) for feed.

Ceramic Interests API

The Interests API from Ceramic — 2 operation(s) for interests.

Ceramic Liveness API

The Liveness API from Ceramic — 1 operation(s) for liveness.

Ceramic Peers API

The Peers API from Ceramic — 1 operation(s) for peers.

Ceramic Streams API

The Streams API from Ceramic — 1 operation(s) for streams.

Ceramic Version API

The Version API from Ceramic — 1 operation(s) for version.

Scroll for all 10

Ceramic Config Version API

OPEN COLLECTION

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Ceramic API pricing

Not yet checked against Ceramic's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure.

Plan	Price
Self-Hosted Small App	—
Self-Hosted Mid-Sized App	—
Local Development	—

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Plans

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Rate Limits

0 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Ceramic

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Ceramic — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

Security Posture 1

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

Ceramic Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Ceramic Agentic Access

30 operations · 4 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

Discord

Forums

RateLimits

Status

Commercial 4

Pricing, plans, and the legal terms of use

FinOps

TermsOfService

PrivacyPolicy

Plans

Company 3

The organization behind the API

Website

Website

Blog

Blog

Twitter

Twitter

Source (apis.yml)

name: Ceramic
description: Ceramic is a decentralized data network built on a protocol for mutable event streams anchored to blockchain.
  It provides REST APIs for creating and updating mutable data streams, managing decentralized identifiers (DIDs), registering
  data interests, and reading stream state and events across the composable data network.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  try_now_blocked_by: loopback
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://ceramic.network/favicon.ico
url: https://raw.githubusercontent.com/api-evangelist/ceramic/refs/heads/main/apis.yml
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-21
tags:
- Decentralized
- Web3
- Data Streams
- DID
- IPFS
- Blockchain
- Event Streaming
- ComposeDB
apis:
- aid: ceramic:ceramic-config-api
  name: Ceramic Config API
  description: The Config API from Ceramic — 1 operation(s) for config.
  humanURL: https://developers.ceramic.network/build/http/api/
  baseURL: http://localhost:5101/ceramic
  tags:
  - Config
  properties:
  - type: OpenAPI
    url: openapi/ceramic-config-api-openapi.yml
  - type: Documentation
    url: https://developers.ceramic.network/build/http/api/
  - type: GitHubOrganization
    url: https://github.com/ceramicnetwork
- aid: ceramic:ceramic-debug-api
  name: Ceramic Debug API
  description: The Debug API from Ceramic — 1 operation(s) for debug.
  humanURL: https://developers.ceramic.network/build/http/api/
  baseURL: http://localhost:5101/ceramic
  tags:
  - Debug
  properties:
  - type: OpenAPI
    url: openapi/ceramic-debug-api-openapi.yml
  - type: Documentation
    url: https://developers.ceramic.network/build/http/api/
  - type: GitHubOrganization
    url: https://github.com/ceramicnetwork
- aid: ceramic:ceramic-events-api
  name: Ceramic Events API
  description: The Events API from Ceramic — 2 operation(s) for events.
  humanURL: https://developers.ceramic.network/build/http/api/
  baseURL: http://localhost:5101/ceramic
  tags:
  - Event
  tags_raw:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/ceramic-events-api-openapi.yml
  - type: Documentation
    url: https://developers.ceramic.network/build/http/api/
  - type: GitHubOrganization
    url: https://github.com/ceramicnetwork
- aid: ceramic:ceramic-experimental-api
  name: Ceramic Experimental API
  description: The Experimental API from Ceramic — 2 operation(s) for experimental.
  humanURL: https://developers.ceramic.network/build/http/api/
  baseURL: http://localhost:5101/ceramic
  tags:
  - Experimental
  properties:
  - type: OpenAPI
    url: openapi/ceramic-experimental-api-openapi.yml
  - type: Documentation
    url: https://developers.ceramic.network/build/http/api/
  - type: GitHubOrganization
    url: https://github.com/ceramicnetwork
- aid: ceramic:ceramic-feed-api
  name: Ceramic Feed API
  description: The Feed API from Ceramic — 2 operation(s) for feed.
  humanURL: https://developers.ceramic.network/build/http/api/
  baseURL: http://localhost:5101/ceramic
  tags:
  - Feed
  properties:
  - type: OpenAPI
    url: openapi/ceramic-feed-api-openapi.yml
  - type: Documentation
    url: https://developers.ceramic.network/build/http/api/
  - type: GitHubOrganization
    url: https://github.com/ceramicnetwork
- aid: ceramic:ceramic-interests-api
  name: Ceramic Interests API
  description: The Interests API from Ceramic — 2 operation(s) for interests.
  humanURL: https://developers.ceramic.network/build/http/api/
  baseURL: http://localhost:5101/ceramic
  tags:
  - Interests
  properties:
  - type: OpenAPI
    url: openapi/ceramic-interests-api-openapi.yml
  - type: Documentation
    url: https://developers.ceramic.network/build/http/api/
  - type: GitHubOrganization
    url: https://github.com/ceramicnetwork
- aid: ceramic:ceramic-liveness-api
  name: Ceramic Liveness API
  description: The Liveness API from Ceramic — 1 operation(s) for liveness.
  humanURL: https://developers.ceramic.network/build/http/api/
  baseURL: http://localhost:5101/ceramic
  tags:
  - Liveness
  properties:
  - type: OpenAPI
    url: openapi/ceramic-liveness-api-openapi.yml
  - type: Documentation
    url: https://developers.ceramic.network/build/http/api/
  - type: GitHubOrganization
    url: https://github.com/ceramicnetwork
- aid: ceramic:ceramic-peers-api
  name: Ceramic Peers API
  description: The Peers API from Ceramic — 1 operation(s) for peers.
  humanURL: https://developers.ceramic.network/build/http/api/
  baseURL: http://localhost:5101/ceramic
  tags:
  - Peers
  properties:
  - type: OpenAPI
    url: openapi/ceramic-peers-api-openapi.yml
  - type: Documentation
    url: https://developers.ceramic.network/build/http/api/
  - type: GitHubOrganization
    url: https://github.com/ceramicnetwork
- aid: ceramic:ceramic-streams-api
  name: Ceramic Streams API
  description: The Streams API from Ceramic — 1 operation(s) for streams.
  humanURL: https://developers.ceramic.network/build/http/api/
  baseURL: http://localhost:5101/ceramic
  tags:
  - Streams
  properties:
  - type: OpenAPI
    url: openapi/ceramic-streams-api-openapi.yml
  - type: Documentation
    url: https://developers.ceramic.network/build/http/api/
  - type: GitHubOrganization
    url: https://github.com/ceramicnetwork
- aid: ceramic:ceramic-version-api
  name: Ceramic Version API
  description: The Version API from Ceramic — 1 operation(s) for version.
  humanURL: https://developers.ceramic.network/build/http/api/
  baseURL: http://localhost:5101/ceramic
  tags:
  - Version
  properties:
  - type: OpenAPI
    url: openapi/ceramic-version-api-openapi.yml
  - type: Documentation
    url: https://developers.ceramic.network/build/http/api/
  - type: GitHubOrganization
    url: https://github.com/ceramicnetwork
common:
- type: FinOps
  url: finops/finops.yml
- type: AgenticAccess
  url: agentic-access/ceramic-agentic-access.yml
- type: DomainSecurity
  url: security/ceramic-domain-security.yml
- type: Website
  url: https://ceramic.network/
- type: Documentation
  url: https://developers.ceramic.network/
- type: GitHub
  url: https://github.com/ceramicnetwork
- type: Discord
  url: https://chat.ceramic.network/
- type: Forums
  url: https://forum.ceramic.network/
- type: Blog
  url: https://blog.ceramic.network/
- type: Twitter
  url: https://twitter.com/ceramicnetwork
- type: TermsOfService
  url: https://ceramic.network/terms-of-service
- type: PrivacyPolicy
  url: https://ceramic.network/privacy-policy
- type: Plans
  url: https://ceramic.network/plans
- type: RateLimits
  url: https://ceramic.network/rate-limits
- type: Status
  url: https://ceramic.network/status
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'

Ceramic API — frequently asked questions

Does Ceramic have an API?

Yes. APIs.io lists 10 APIs from Ceramic, including Ceramic Config API, Ceramic Debug API and Ceramic Events API, and 7 more.

Is there an OpenAPI specification for the Ceramic API?

Yes. APIs.io indexes 10 OpenAPI specifications for Ceramic, each linked for download from this page.

How much does the Ceramic API cost?

APIs.io lists 3 pricing plans for Ceramic, with each plan's price, limits and inclusions under Pricing on this page.

Is the Ceramic API ready for AI agents?

Ceramic has a Kin Score of 19.0 out of 100 (emerging) and an Agent Readiness score of 22.5 (agent-aware), scored by API Evangelist on 2026-11-06.

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