# Open States

**Canonical:** https://apis.io/providers/openstates/  
**Website:** https://pluralpolicy.com/open  
**APIs profiled:** 7

Open States is a civic technology project that aggregates and publishes legislative data for all 50 US states, Washington DC, Puerto Rico, and select municipal governments. It provides a REST API (v3) and a deprecated GraphQL API (v2) for programmatic access to bill text, sponsors, votes, legislators, committee information, and legislative events. Data is also available via bulk downloads. The project is maintained by Plural Policy as open civic infrastructure.

## Kin Score — 34.7 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 34.7).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 53.0 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

Regulatory layer — **Government & Public Sector**: 20.4 (matched via tags).

## Agent readiness — 32.7 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | na |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | na |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | na |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (7)

- **Open States GraphQL API (v2 - Deprecated)** — Legacy GraphQL API providing access to Open States legislative data. This API has been deprecated in favour of API v3. Existing integrations should migrate to the REST v3 API.
- **Open States bills API** — The bills API from Open States — 3 operation(s) for bills.
- **Open States committees API** — The committees API from Open States — 2 operation(s) for committees.
- **Open States events API** — The events API from Open States — 2 operation(s) for events.
- **Open States jurisdictions API** — The jurisdictions API from Open States — 2 operation(s) for jurisdictions.
- **Open States Metrics API** — The Metrics API from Open States — 1 operation(s) for metrics.
- **Open States people API** — The people API from Open States — 2 operation(s) for people.

## Agentic access (1)

- **Openstates Agentic Access** — 12 operations

## Security (1)

- **Openstates Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Openstates Plans Pricing**

## Tags

Government, Legislative Data, Civic Technology, State Legislature, Bills, Legislators, Committees, Open Data, REST, GraphQL

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/openstates/). Scores are computed from the provider's own public artifacts under a published rubric.