openstates.org

Open States is an open data service for U.S. state legislative information, including jurisdictions, people, bills, committees, and events. It provides public legislative data and related research tools through the Open States and Plural ecosystem.

2 integrations · REST · GraphQL

Open States exposes a current authenticated REST API v3 with an OpenAPI spec, plus a deprecated/sunset authenticated GraphQL v2 endpoint.

discovered 1d ago

REST · OpenAPI1

Open States API v3discoveredrest

GraphQL1

Open States GraphQL API v2discoveredgraphql

Credentials

Open States API keyapi_keyGet key ↗

Create or sign in to your Open States/Plural account, then go to API key profile to register and manage your API key. The API v3 docs say API keys are required; the site history page notes open.pluralpolicy.com provides API key registration and management.

conventions · 0/8 published

integrations.json✗/.well-known/integrations.json
llms.txt✗/llms.txt
API catalog✗/.well-known/api-catalog
OpenAPI document✗/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json
MCP server card✗/.well-known/mcp/server-card.json
OAuth protected resource✗/.well-known/oauth-protected-resource
Agent card✗/.well-known/agent-card.json
Agent skills✗/.well-known/agent-skills/index.json

Publish these signals → /publishing