# jService

**Canonical:** https://apis.io/providers/jservice/  
**APIs profiled:** 3

jService is an open source Ruby on Rails trivia API that serves approximately 200,000 Jeopardy! questions, answers, and categories scraped from the J! Archive fan site. The original public deployment at jservice.io is no longer operational, but the project (sottenad/jService, MIT licensed) remains available for self-hosting against PostgreSQL. The API exposes random clues, final Jeopardy clues, filtered clue queries, category listings, single-category lookup, and invalid-clue reporting under /api/*.

## Kin Score — 24.1 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 24.1).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 62.0 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 17.5 (agent-aware)

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

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (3)

- **jService Categories API** — Category collections of clues.
- **jService Clues API** — Jeopardy! questions, answers, and metadata.
- **jService Moderation API** — User-driven reporting of invalid clues.

## Agentic access (1)

- **Jservice Agentic Access** — 6 operations · 1 acting

## Security (1)

- **Jservice Domain Security** — no transport/DNS hardening detected

## Tags

Games And Comics, Trivia, Jeopardy, Open-Source, Ruby, Rails, Public APIs

---

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