CourtListener

CourtListener is a free legal research platform operated by the Free Law Project, a nonprofit organization. It provides a comprehensive REST API for accessing US court opinions, dockets, oral arguments, judge biographical data, financial disclosures, and citation networks from federal and state courts. The platform archives over 9 million case law decisions, 500 million PACER-related items, 3.4 million minutes of oral arguments, and data on 16,000+ judges. Access is available through a membership model with rate limits scaling by tier; an EDU tier is free for academic users.

CourtListener publishes 22 API contracts indexed on the APIs.io network, including Alerts API, Audio API, Citation API, and 19 more. Tagged areas include Legal, Court Data, Case Law, PACER, and Judicial.

The CourtListener catalog on APIs.io includes 3 JSON-LD contexts and 1 Spectral governance ruleset.

CourtListener’s developer surface includes authentication, documentation, engineering blog, pricing, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.7/100 thin ▬ flat Agent 39/100 agent ready Front door AI 3/6 light saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 1 MCP Servers

Legal Court Data Case Law PACERJudicialCitationsOral ArgumentsFederal CourtsState CourtsOpen DataFreeLaw

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Data & Reference Information Services

AE-230

Docket EntriesDocketsFJC DatabaseOpinionOpinion ClustersOpinions

GET /api/rest/v4/dockets/ GET /api/rest/v4/fjc-integrated-database/ GET /api/rest/v4/opinions/ GET /api/rest/v4/docket-entries/

Kin Score

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

Composite quality — 30.7/100 · thin

Contract Quality 11.8 / 21

Developer Ergonomics 4.0 / 17

Access Clarity 3.1 / 17

Operational Transparency 0.6 / 11

Contract Governance 1.0 / 10

Discoverability 5.1 / 9

Regulatory Posture 2.5 / 15

Agent readiness — 39/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 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 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 5 / 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 Government & Public Sector 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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):

Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

4 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 18.4 — up to +16.3 composite points
Developer Ergonomics scores 23.8 — up to +15.2 composite points
Operational Transparency scores 5.3 — up to +12.3 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/court-listener/apis.yml: open an issue on github.com/api-evangelist/court-listener 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 3

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

APIs 22

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

CourtListener Alerts API

The Alerts API from CourtListener — 2 operation(s) for alerts.

CourtListener Audio API

The Audio API from CourtListener — 2 operation(s) for audio.

CourtListener Citation API

The Citation API from CourtListener — 1 operation(s) for citation.

CourtListener Cited By API

The Cited By API from CourtListener — 1 operation(s) for cited by.

CourtListener Cites API

The Cites API from CourtListener — 1 operation(s) for cites.

CourtListener Courts API

The Courts API from CourtListener — 2 operation(s) for courts.

CourtListener Coverage API

The Coverage API from CourtListener — 1 operation(s) for coverage.

CourtListener Docket Alerts API

The Docket Alerts API from CourtListener — 2 operation(s) for docket alerts.

CourtListener Docket Entries API

The Docket Entries API from CourtListener — 2 operation(s) for docket entries.

CourtListener Dockets API

The Dockets API from CourtListener — 2 operation(s) for dockets.

CourtListener Financial Disclosures API

The Financial Disclosures API from CourtListener — 2 operation(s) for financial disclosures.

CourtListener FJC Database API

The FJC Database API from CourtListener — 2 operation(s) for fjc database.

CourtListener Jurisdiction API

The Jurisdiction API from CourtListener — 1 operation(s) for jurisdiction.

CourtListener Opinion API

The Opinion API from CourtListener — 1 operation(s) for opinion.

CourtListener Opinion Clusters API

The Opinion Clusters API from CourtListener — 2 operation(s) for opinion clusters.

CourtListener Opinions API

The Opinions API from CourtListener — 2 operation(s) for opinions.

CourtListener People API

The People API from CourtListener — 2 operation(s) for people.

CourtListener Positions API

The Positions API from CourtListener — 2 operation(s) for positions.

CourtListener RECAP Documents API

The RECAP Documents API from CourtListener — 2 operation(s) for recap documents.

CourtListener Search API

The Search API from CourtListener — 3 operation(s) for search.

CourtListener Visualizations API

The Visualizations API from CourtListener — 2 operation(s) for visualizations.

CourtListener API

API for CourtListener legal data access

Scroll for all 22

Scroll for all 21

MCP Servers 1

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

CourtListener MCP Server

Remote MCP server at mcp.courtlistener.com over HTTP.

MCP SERVER

CourtListener API pricing

Not yet checked against CourtListener's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free	Free
Tier 1	$10
Tier 2	$25
Tier 3	$50
Tier 4	$100
EDU	Free
Group (Small)	$30

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Court Listener Plans Pricing

7 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Court Listener 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.

CourtListener

SLA

FinOps 1

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

Court Listener Finops

FINOPS

Semantic Vocabularies 3

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

Court Listener Context

1 classes · 54 properties

JSON-LD

Court Listener Docket Context

0 classes · 0 properties

JSON-LD

Court Listener Opinion Context

0 classes · 0 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

CourtListener — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 9

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

Audio

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

Court Listener Authentication

apiKey/http · 3 schemes

SECURITY

Court Listener Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Court Listener Agentic Access

37 operations

37 operations · 0 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

GitHubOrg

GitHubOrg

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: court-listener
name: CourtListener
description: 'CourtListener is a free legal research platform operated by the Free Law Project, a nonprofit organization.
  It provides a comprehensive REST API for accessing US court opinions, dockets, oral arguments, judge biographical data,
  financial disclosures, and citation networks from federal and state courts. The platform archives over 9 million case law
  decisions, 500 million PACER-related items, 3.4 million minutes of oral arguments, and data on 16,000+ judges. Access is
  available through a membership model with rate limits scaling by tier; an EDU tier is free for academic users.

  '
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/court-listener.png
url: https://raw.githubusercontent.com/api-evangelist/court-listener/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
tags:
- Legal
- Court Data
- Case Law
- PACER
- Judicial
- Citations
- Oral Arguments
- Federal Courts
- State Courts
- Open Data
- FreeLaw
apis:
- aid: court-listener:court-listener-alerts-api
  name: CourtListener Alerts API
  description: The Alerts API from CourtListener — 2 operation(s) for alerts.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Alerts
  properties:
  - type: OpenAPI
    url: openapi/court-listener-alerts-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-audio-api
  name: CourtListener Audio API
  description: The Audio API from CourtListener — 2 operation(s) for audio.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Audio
  properties:
  - type: OpenAPI
    url: openapi/court-listener-audio-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-citation-api
  name: CourtListener Citation API
  description: The Citation API from CourtListener — 1 operation(s) for citation.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Citations
  tags_raw:
  - Citation
  properties:
  - type: OpenAPI
    url: openapi/court-listener-citation-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-cited-by-api
  name: CourtListener Cited By API
  description: The Cited By API from CourtListener — 1 operation(s) for cited by.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Cited By
  properties:
  - type: OpenAPI
    url: openapi/court-listener-cited-by-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-cites-api
  name: CourtListener Cites API
  description: The Cites API from CourtListener — 1 operation(s) for cites.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Cites
  properties:
  - type: OpenAPI
    url: openapi/court-listener-cites-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-courts-api
  name: CourtListener Courts API
  description: The Courts API from CourtListener — 2 operation(s) for courts.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Courts
  properties:
  - type: OpenAPI
    url: openapi/court-listener-courts-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-coverage-api
  name: CourtListener Coverage API
  description: The Coverage API from CourtListener — 1 operation(s) for coverage.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Coverage
  properties:
  - type: OpenAPI
    url: openapi/court-listener-coverage-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-docket-alerts-api
  name: CourtListener Docket Alerts API
  description: The Docket Alerts API from CourtListener — 2 operation(s) for docket alerts.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Docket Alerts
  properties:
  - type: OpenAPI
    url: openapi/court-listener-docket-alerts-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-docket-entries-api
  name: CourtListener Docket Entries API
  description: The Docket Entries API from CourtListener — 2 operation(s) for docket entries.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Docket Entries
  properties:
  - type: OpenAPI
    url: openapi/court-listener-docket-entries-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-dockets-api
  name: CourtListener Dockets API
  description: The Dockets API from CourtListener — 2 operation(s) for dockets.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Dockets
  properties:
  - type: OpenAPI
    url: openapi/court-listener-dockets-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-financial-disclosures-api
  name: CourtListener Financial Disclosures API
  description: The Financial Disclosures API from CourtListener — 2 operation(s) for financial disclosures.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Financial Disclosures
  properties:
  - type: OpenAPI
    url: openapi/court-listener-financial-disclosures-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-fjc-database-api
  name: CourtListener FJC Database API
  description: The FJC Database API from CourtListener — 2 operation(s) for fjc database.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - FJC Database
  properties:
  - type: OpenAPI
    url: openapi/court-listener-fjc-database-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-jurisdiction-api
  name: CourtListener Jurisdiction API
  description: The Jurisdiction API from CourtListener — 1 operation(s) for jurisdiction.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Jurisdiction
  properties:
  - type: OpenAPI
    url: openapi/court-listener-jurisdiction-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-opinion-api
  name: CourtListener Opinion API
  description: The Opinion API from CourtListener — 1 operation(s) for opinion.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Opinion
  properties:
  - type: OpenAPI
    url: openapi/court-listener-opinion-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-opinion-clusters-api
  name: CourtListener Opinion Clusters API
  description: The Opinion Clusters API from CourtListener — 2 operation(s) for opinion clusters.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Opinion Clusters
  properties:
  - type: OpenAPI
    url: openapi/court-listener-opinion-clusters-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-opinions-api
  name: CourtListener Opinions API
  description: The Opinions API from CourtListener — 2 operation(s) for opinions.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Opinions
  properties:
  - type: OpenAPI
    url: openapi/court-listener-opinions-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-people-api
  name: CourtListener People API
  description: The People API from CourtListener — 2 operation(s) for people.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - People
  properties:
  - type: OpenAPI
    url: openapi/court-listener-people-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-positions-api
  name: CourtListener Positions API
  description: The Positions API from CourtListener — 2 operation(s) for positions.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Positions
  properties:
  - type: OpenAPI
    url: openapi/court-listener-positions-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-recap-documents-api
  name: CourtListener RECAP Documents API
  description: The RECAP Documents API from CourtListener — 2 operation(s) for recap documents.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - RECAP Documents
  properties:
  - type: OpenAPI
    url: openapi/court-listener-recap-documents-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-search-api
  name: CourtListener Search API
  description: The Search API from CourtListener — 3 operation(s) for search.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/court-listener-search-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- aid: court-listener:court-listener-visualizations-api
  name: CourtListener Visualizations API
  description: The Visualizations API from CourtListener — 2 operation(s) for visualizations.
  humanURL: https://www.courtlistener.com/help/api/rest/
  baseURL: https://www.courtlistener.com/api/rest/v4/
  tags:
  - Visualization
  tags_raw:
  - Visualizations
  properties:
  - type: OpenAPI
    url: openapi/court-listener-visualizations-api-openapi.yml
  - type: Documentation
    url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
  - type: PythonSDK
    url: https://github.com/freelawproject/courtlistener-api-client
- name: CourtListener API
  description: API for CourtListener legal data access
  humanURL: https://www.courtlistener.com/
  baseURL: null
  aid: court-listener:courtlistener-api
common:
- type: CapabilityMap
  url: capabilities/court-listener-capability-edges.yml
  name: CourtListener Business Capability Map
- type: AgenticAccess
  url: agentic-access/court-listener-agentic-access.yml
- type: DomainSecurity
  url: security/court-listener-domain-security.yml
- type: Authentication
  url: authentication/court-listener-authentication.yml
- type: Website
  url: https://www.courtlistener.com/
- type: Documentation
  url: https://wiki.free.law/c/courtlistener/help/api/rest/v4/overview
- type: GitHubOrg
  url: https://github.com/freelawproject
- type: LinkedIn
  url: https://www.linkedin.com/company/free-law-project
- type: Blog
  url: https://free.law/blog/
- type: Pricing
  url: https://free.law/membership
- type: X
  url: https://x.com/FreeLawProject
- type: Plans
  url: plans/court-listener-plans-pricing.yml
- type: RateLimits
  url: rate-limits/court-listener-rate-limits.yml
- type: FinOps
  url: finops/court-listener-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

CourtListener API — frequently asked questions

Does CourtListener have an API?

Yes. APIs.io lists 22 APIs from CourtListener, including CourtListener Alerts API, CourtListener Audio API and CourtListener Citation API, and 19 more.

Is there an OpenAPI specification for the CourtListener API?

Yes. APIs.io indexes 21 OpenAPI specifications for CourtListener, each linked for download from this page.

How do I authenticate with the CourtListener API?

CourtListener uses bearer-token authentication (apiKey/http · 3 schemes). The details are profiled on APIs.io as Court Listener Authentication.

How much does the CourtListener API cost?

APIs.io lists 7 pricing plans for CourtListener, with each plan's price, limits and inclusions under Pricing on this page.

Does CourtListener have an MCP server?

Yes. APIs.io lists 1 MCP server for CourtListener: Remote MCP server at mcp.courtlistener.com over HTTP.

Is the CourtListener API ready for AI agents?

CourtListener has a Kin Score of 30.7 out of 100 (thin) and an Agent Readiness score of 39.0 (agent-ready), scored by API Evangelist on 2026-11-06.

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