# Financial market data APIs for AI agents (slim)

> 11 financial market data listings ranked by the Anchor benchmark. Leader Massive (formerly Polygon.io) (BB). APIs that give prices and time series, company fundamentals and financial statements, filings, earnings, corporate actions and market news, for agents doing company research or running strategies. Compared on asset and exchange coverage, depth of history, delay on live data, licence limits on redistribution and display, and price per call or per month.

- Full: https://www.anchorterminal.com/categories/market-data.md (~3,850 tokens) · this version ~580 tokens · JSON https://www.anchorterminal.com/categories/market-data.json · canonical https://www.anchorterminal.com/categories/market-data
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-03
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

- Tools: 11 · 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: market.prices, market.fundamentals, market.filings, market.news, market.history, market.crypto, market.indices

| # | Tool | Grade | Score | Confidence | x402 | Auth | Where | Slim |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 100 | Massive (formerly Polygon.io) | BB | 73.1 | medium | yes | API key | hosted | https://www.anchorterminal.com/tools/massive.min.md |
| 197 | Twelve Data | BB | 70 | medium | no | OAuth or key | hosted and local | https://www.anchorterminal.com/tools/twelve-data.min.md |
| 492 | Financial Datasets | C | 61.8 | medium | yes | OAuth or key | hosted | https://www.anchorterminal.com/tools/financial-datasets.min.md |
| 578 | Databento | C | 60.3 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/databento.min.md |
| 651 | EODHD | C | 59 | medium | no | OAuth or key | hosted and local | https://www.anchorterminal.com/tools/eodhd.min.md |
| 879 | Intrinio | C | 54.2 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/intrinio.min.md |
| 1043 | Benzinga | D | 49.2 | low | no | API key | hosted | https://www.anchorterminal.com/tools/benzinga.min.md |
| 1056 | Financial Modeling Prep | D | 48.7 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/financial-modeling-prep.min.md |
| 1118 | Tiingo | D | 46.2 | low | no | API key | hosted | https://www.anchorterminal.com/tools/tiingo.min.md |
| 1140 | Finnhub | E | 45.1 | low | no | OAuth or key | hosted | https://www.anchorterminal.com/tools/finnhub.min.md |
| 1197 | Alpha Vantage | E | 41.5 | medium | no | OAuth or key | hosted and local | https://www.anchorterminal.com/tools/alpha-vantage.min.md |