The Sex Offender Search API — 58 US Registries, One Call

# Offendersearch > Offendersearch is a REST API over US sex-offender registry data — all 50 states, > the District of Columbia, the US territories and NSOPW, normalized into one > record schema. One authenticated call searches every jurisdiction and returns > scored, de-duplicated records, each carrying per-source provenance and its own > lastCheckedAt. Every response reports which sources completed, so an incomplete > search is labelled rather than returned as an empty result. Not a consumer report and not a consumer reporting agency; results must not be the sole basis for an FCRA-governed decision. Metered pricing, $0.15 per call. ## Documentation - [/docs.md](https://offendersearch.app/docs.md): the complete API reference as one markdown document. - [/docs/quickstart.md](https://offendersearch.app/docs/quickstart.md): Your first authenticated search in three languages, and the four fields to read off every response. - [/docs/authentication.md](https://offendersearch.app/docs/authentication.md): The X-API-Key header, key lifecycle and rotation, and the security posture behind the API. - [/docs/errors.md](https://offendersearch.app/docs/errors.md): Every status code, the stable error envelope, the rate-limit headers, and how to back off. - [/docs/search.md](https://offendersearch.app/docs/search.md): The primary endpoint. Every parameter, the four stages of a search, and nine worked query shapes. - [/docs/matching.md](https://offendersearch.app/docs/matching.md): Match modes, the closed strategy vocabulary, confidence ceilings, and partial-name search. - [/docs/date-of-birth.md](https://offendersearch.app/docs/date-of-birth.md): Labelled match strength on every record, and how dob, birthYear and dobPrecision fit together. - [/docs/result-completeness.md](https://offendersearch.app/docs/result-completeness.md): An incomplete search is labelled, never silently empty. counts, sourceStatus and incompleteReason. - [/docs/pagination.md](https://offendersearch.app/d

openapi: 3.1.0 info: title: Offendersearch API version: "1.0.0" description: > National sex-offender search across all US states and territories, unified behind one API. Synchronous by default (call and wait) for interactive use; an asynchronous mode returns a job handle and is built for batch and high-volume work. Full offenders.io field parity plus scored matches, per-source provenance, freshness options, DOB/age match-state fidelity, and a consolidated verifi