Lex Machina Authorization API

Provides API authorization.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/lex-machina-authorization-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

lex-machina-authorization-api-openapi.yml Raw ↑
openapi: 3.1.0
info:
  title: Lex Machina Alerts Authorization API
  version: '20260324'
  description: Alerts.
servers:
- url: https://api.lexmachina.com
  description: Lex Machina production API
tags:
- name: Authorization
  description: Provides API authorization.
paths:
  /oauth2/token:
    post:
      tags:
      - Authorization
      summary: Oauth2 Token
      description: 'Generates a shot lived bearer token used to authenticate an application to the rest of the API.


        - **client_id**: client id from the application

        - **client_secret**: client secret from the application

        - **grant_type**: only "client_credentials" are supported at this time


        See [https://law.lexmachina.com/api-settings](https://law.lexmachina.com/api-settings) for application management.'
      operationId: oauth2_token
      parameters:
      - name: client_id
        in: query
        required: false
        schema:
          type: string
          title: Client Id
      - name: client_secret
        in: query
        required: false
        schema:
          type: string
          title: Client Secret
      - name: grant_type
        in: query
        required: false
        schema:
          type: string
          default: client_credentials
          title: Grant Type
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
  securitySchemes:
    JwtAccessBearer:
      type: http
      scheme: bearer