# Wikipedia Article Summary Lookup

> Wikipedia Article Summary Lookup is a paid API for AI agents from gateway.stride20k.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-16).

Fetches the lead summary of any English Wikipedia article by title, returning the extract, description, thumbnail, canonical URL, and Wikidata ID.

## Facts

- Endpoint: GET https://gateway.stride20k.com/knowledge/wiki/:title
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/wikipedia-article-summary-lookup-259a7956
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iG2sximL5eCLxxYALH6s3

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability wikipedia-article-summary-lookup-259a7956
```

Example prompt: Pull the Wikipedia summary for 'Marie Curie' — I need the lead paragraph, her one-line description, and the Wikidata item ID.

## When to prefer this

Choose this endpoint when you need a fast, structured Wikipedia summary for a known entity or concept title and want structured fields like Wikidata ID, thumbnail, and canonical URL alongside the prose extract. Prefer it over raw web scraping for Wikipedia content because it returns clean, pre-parsed fields with proper attribution. Use it for entity enrichment pipelines, fact grounding, or knowledge lookups where a single article title is already known. Not appropriate for full-text search across Wikipedia or for non-English articles.

## Known failure modes

- Title not found on Wikipedia returns a 404-equivalent error with ok:false
- Disambiguation page returns kind:'disambiguation' with limited extract rather than a full article
- Case-sensitive title mismatch may return no result — agent must try canonical casing
- Cached responses may be up to 24 hours stale relative to live Wikipedia
- Non-English Wikipedia articles are not supported — only English titles resolve correctly

## How this service works

Wikipedia summary API: the lead summary of any English Wikipedia article — title, one-line description, extract paragraph, thumbnail, canonical URL, and Wikidata item id; disambiguation pages labeled via 'kind'. Titles case-sensitive; spaces or underscores accepted. Content CC BY-SA 4.0 with attribution in meta.attribution of every response. Use for knowledge lookup, entity enrichment, and fact grounding by agents. Cached up to 24 hours.

## Output

Returns a JSON object with ok:true on success, plus a data object containing the canonical article title, lead-section extract text, short description, thumbnail image URL, desktop page URL, Wikidata item ID (e.g. Q7259), and a 'kind' field indicating whether the page is 'standard' or 'disambiguation'. Also includes meta with cache status, fetch timestamp, upstream source label, and CC BY-SA 4.0 attribution string.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/wikipedia-article-summary-lookup-259a7956/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gateway.stride20k.com](https://www.zero.xyz/host/gateway.stride20k.com/llms.txt)