# Data provider APIs for AI agents (slim)

> 6 data providers ranked by the Anchor benchmark. Leader CoinGecko x402 API (BB). Market, company, weather and reference data behind an API. Scored on the data as well as the API, meaning coverage, freshness, history, method, licence and official standing.

- Full: https://www.anchorterminal.com/categories/data-providers.md (~5,000 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/categories/data-providers.json · canonical https://www.anchorterminal.com/categories/data-providers
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

- Tools: 6 · agent-ready (BB+): 2 · accept x402: 2 · JSON: https://www.anchorterminal.com/api/v1/tools.json · by capability: https://www.anchorterminal.com/api/v1/capabilities.json
- Capabilities: data.markets, market.crypto, market.indices, market.news, data.company, data.weather, data.knowledge

| # | Tool | Grade | Score | Confidence | x402 | Auth | Where | Slim |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 76 | CoinGecko x402 API | BB | 71.9 | medium | yes | None | hosted | https://www.anchorterminal.com/tools/coingecko-x402-api.min.md |
| 102 | Massive (formerly Polygon.io) | BB | 70 | medium | yes | API key | hosted | https://www.anchorterminal.com/tools/massive.min.md |
| 156 | Wikimedia REST API | B | 66.8 | medium | no | None | hosted | https://www.anchorterminal.com/tools/wikimedia.min.md |
| 203 | Open-Meteo | B | 63.5 | medium | no | None | hosted | https://www.anchorterminal.com/tools/open-meteo.min.md |
| 365 | Companies House API | D | 49.8 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/companies-house.min.md |
| 391 | CoinDesk Data API | D | 46.9 | low | no | API key | hosted | https://www.anchorterminal.com/tools/coindesk-data-api.min.md |