Clojars

Clojars is a community repository for open source Clojure libraries, providing a REST API for searching artifacts, retrieving version information, accessing user and group data, and managing deployment credentials via deploy tokens.

Clojars publishes 5 APIs on the APIs.io network, including Artifacts API, Feeds API, Groups API, and 2 more. Tagged areas include Clojure, Package Registry, Artifact Repository, and Open Source.

The Clojars catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Clojars’ developer surface includes authentication and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

40.3/100 thin ▬ flat Agent 34/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessSelf serve

5 APIs

ClojurePackage RegistryArtifact RepositoryOpen Source

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 40.3/100 · thin

Contract Quality 16.0 / 25

Developer Ergonomics 2.2 / 20

Commercial Clarity 1.6 / 20

Operational Transparency 6.8 / 13

Governance 7.0 / 12

Discoverability 6.7 / 10

Agent readiness — 34/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 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

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/clojars: 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 5

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

Clojars Artifacts API

Operations related to Clojars artifacts and releases

Clojars Feeds API

Release feed and bulk data operations

Clojars Groups API

Operations related to Clojars artifact groups

Clojars Search API

Search operations across the Clojars artifact index

Clojars Users API

Operations related to Clojars user profiles and group memberships

Pricing Plans 1

Published pricing tiers and plan structures.

Free

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Default

4 limits

RATE LIMITS

FinOps 1

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

Overview

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

context Context

0 classes · 17 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Clojars API Rules

6 rules · 5 warnings 1 info

SPECTRAL

JSON Schema 3

Standalone JSON Schema definitions for this provider's data models.

Artifact

9 properties

JSON SCHEMA

ReleaseFeed

2 properties

JSON SCHEMA

User

2 properties

JSON SCHEMA

Examples 4

Example request and response payloads for these APIs.

Get Artifact By Group

9 fields

EXAMPLE

Get Release Feed

2 fields

EXAMPLE

Get User

2 fields

EXAMPLE

Search Artifacts

2 fields

EXAMPLE

Security Posture 2

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

Clojars Authentication

http · 1 scheme

SECURITY

Clojars Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Clojars Agentic Access

9 operations

9 operations · 0 acting

AGENTIC

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

GitHubRepo

GitHubRepo

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Other 3

Properties that don't map to a standard resource type

Wiki

Wiki

MavenRepository

MavenRepository

Sponsor

Sponsor

Source (apis.yml)

name: Clojars
description: Clojars is a community repository for open source Clojure libraries, providing a REST API for searching artifacts,
  retrieving version information, accessing user and group data, and managing deployment credentials via deploy tokens.
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://clojars.org/images/clojars-logo.png
url: https://clojars.org/
tags:
- Clojure
- Package Registry
- Artifact Repository
- Open Source
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
apis:
- aid: clojars:clojars-artifacts-api
  name: Clojars Artifacts API
  description: Operations related to Clojars artifacts and releases
  humanURL: https://github.com/clojars/clojars-web/wiki/Data
  baseURL: https://clojars.org/api
  tags:
  - Artifacts
  properties:
  - type: OpenAPI
    url: openapi/clojars-artifacts-api-openapi.yml
  - type: Documentation
    url: https://github.com/clojars/clojars-web/wiki/Data
  - type: Authentication
    url: https://github.com/clojars/clojars-web/wiki/Deploy-Tokens
- aid: clojars:clojars-feeds-api
  name: Clojars Feeds API
  description: Release feed and bulk data operations
  humanURL: https://github.com/clojars/clojars-web/wiki/Data
  baseURL: https://clojars.org/api
  tags:
  - Feeds
  properties:
  - type: OpenAPI
    url: openapi/clojars-feeds-api-openapi.yml
  - type: Documentation
    url: https://github.com/clojars/clojars-web/wiki/Data
  - type: Authentication
    url: https://github.com/clojars/clojars-web/wiki/Deploy-Tokens
- aid: clojars:clojars-groups-api
  name: Clojars Groups API
  description: Operations related to Clojars artifact groups
  humanURL: https://github.com/clojars/clojars-web/wiki/Data
  baseURL: https://clojars.org/api
  tags:
  - Groups
  properties:
  - type: OpenAPI
    url: openapi/clojars-groups-api-openapi.yml
  - type: Documentation
    url: https://github.com/clojars/clojars-web/wiki/Data
  - type: Authentication
    url: https://github.com/clojars/clojars-web/wiki/Deploy-Tokens
- aid: clojars:clojars-search-api
  name: Clojars Search API
  description: Search operations across the Clojars artifact index
  humanURL: https://github.com/clojars/clojars-web/wiki/Data
  baseURL: https://clojars.org/api
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/clojars-search-api-openapi.yml
  - type: Documentation
    url: https://github.com/clojars/clojars-web/wiki/Data
  - type: Authentication
    url: https://github.com/clojars/clojars-web/wiki/Deploy-Tokens
- aid: clojars:clojars-users-api
  name: Clojars Users API
  description: Operations related to Clojars user profiles and group memberships
  humanURL: https://github.com/clojars/clojars-web/wiki/Data
  baseURL: https://clojars.org/api
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/clojars-users-api-openapi.yml
  - type: Documentation
    url: https://github.com/clojars/clojars-web/wiki/Data
  - type: Authentication
    url: https://github.com/clojars/clojars-web/wiki/Deploy-Tokens
common:
- type: AgenticAccess
  url: agentic-access/clojars-agentic-access.yml
- type: DomainSecurity
  url: security/clojars-domain-security.yml
- type: Authentication
  url: authentication/clojars-authentication.yml
- type: StatusPage
  url: https://clojars.statuspage.io
- type: GitHubOrg
  url: https://github.com/clojars
- type: GitHubRepo
  url: https://github.com/clojars/clojars-web
- type: Wiki
  url: https://github.com/clojars/clojars-web/wiki
- type: MavenRepository
  url: https://repo.clojars.org
- type: Sponsor
  url: https://www.clojuriststogether.org/
maintainers:
- FN: Clojurists Together
  url: https://www.clojuriststogether.org/