Midpage

Midpage is an AI-powered legal research and drafting platform built on its own US legal database of millions of court opinions, statutes, and regulations spanning federal and state jurisdictions. Its developer products expose this corpus through a REST case-law API (semantic, keyword, and hybrid search; opinion retrieval; citator treatments), a Model Context Protocol (MCP) server for AI agents, and direct SQL read-replica access.

Midpage publishes 3 APIs on the APIs.io network: Opinions API, Search API, and User API. Tagged areas include Legal, Case Law, Legal Research, Search, and AI.

Midpage’s developer surface includes authentication, documentation, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
39.2/100 thin ▬ flat Agent 37/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serveFree trial⚡ Free to try
4 APIs
LegalCase LawLegal ResearchSearchAI

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 39.2/100 · thin
Contract Quality 15.9 / 25
Developer Ergonomics 3.9 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 37/100 · agent ready
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/midpage: 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 4

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

Midpage MCP Server

Remote Model Context Protocol server (OAuth-authenticated) that gives AI assistants like Claude, ChatGPT, and Perplexity source-grounded legal research tools - search, findInOpi...

Midpage Opinions API

The Opinions API from Midpage — 1 operation(s) for opinions.

Midpage Search API

The Search API from Midpage — 1 operation(s) for search.

Midpage User API

The User API from Midpage — 1 operation(s) for user.

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Midpage Legal Database API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Midpage Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Midpage Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Midpage Finops

FINOPS

Security Posture 2

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

Midpage Authentication

http · 1 scheme

SECURITY

Midpage Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Midpage Agentic Access

3 operations · 2 acting

3 operations · 2 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

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 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: midpage
url: https://raw.githubusercontent.com/api-evangelist/midpage/refs/heads/main/apis.yml
name: Midpage
kind: company
description: Midpage is an AI-powered legal research and drafting platform built on its own US legal database of millions
  of court opinions, statutes, and regulations spanning federal and state jurisdictions. Its developer products expose this
  corpus through a REST case-law API (semantic, keyword, and hybrid search; opinion retrieval; citator treatments), a Model
  Context Protocol (MCP) server for AI agents, and direct SQL read-replica access.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  label: Freemium (free trial) · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/midpage.png
tags:
- Legal
- Case Law
- Legal Research
- Search
- AI
created: '2026-06-21'
modified: '2026-06-21'
specificationVersion: '0.19'
apis:
- aid: midpage:mcp
  name: Midpage MCP Server
  tags:
  - MCP
  - Model Context Protocol
  - Agents
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.midpage.ai/integrations
  baseURL: https://app.midpage.ai/mcp/v3
  properties:
  - url: https://www.midpage.ai/integrations
    type: Documentation
  description: Remote Model Context Protocol server (OAuth-authenticated) that gives AI assistants like Claude, ChatGPT, and
    Perplexity source-grounded legal research tools - search, findInOpinion, analyzeOpinion, and preview docket tools (analyzeDocketReport,
    analyzeDocketFiling). Versioned tool contracts are served at /mcp/v1, /mcp/v2, and /mcp/v3.
- aid: midpage:midpage-opinions-api
  name: Midpage Opinions API
  description: The Opinions API from Midpage — 1 operation(s) for opinions.
  humanURL: https://midpage-docs.apidocumentation.com/
  baseURL: https://app.midpage.ai/api/v1
  tags:
  - Opinions
  properties:
  - type: OpenAPI
    url: openapi/midpage-opinions-api-openapi.yml
  - type: Documentation
    url: https://midpage-docs.apidocumentation.com/
- aid: midpage:midpage-search-api
  name: Midpage Search API
  description: The Search API from Midpage — 1 operation(s) for search.
  humanURL: https://midpage-docs.apidocumentation.com/
  baseURL: https://app.midpage.ai/api/v1
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/midpage-search-api-openapi.yml
  - type: Documentation
    url: https://midpage-docs.apidocumentation.com/
- aid: midpage:midpage-user-api
  name: Midpage User API
  description: The User API from Midpage — 1 operation(s) for user.
  humanURL: https://midpage-docs.apidocumentation.com/
  baseURL: https://app.midpage.ai/api/v1
  tags:
  - User
  properties:
  - type: OpenAPI
    url: openapi/midpage-user-api-openapi.yml
  - type: Documentation
    url: https://midpage-docs.apidocumentation.com/
common:
- type: AgenticAccess
  url: agentic-access/midpage-agentic-access.yml
- type: DomainSecurity
  url: security/midpage-domain-security.yml
- type: Authentication
  url: authentication/midpage-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/midpage
- type: Website
  url: https://www.midpage.ai/
- type: Documentation
  url: https://midpage-docs.apidocumentation.com/
- type: Plans
  url: plans/midpage-plans-pricing.yml
- type: RateLimits
  url: rate-limits/midpage-rate-limits.yml
- type: FinOps
  url: finops/midpage-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com