# CoinDesk Data API vs Massive (formerly Polygon.io) (slim)

> Massive (formerly Polygon.io) has a score of 70 (BB) against CoinDesk Data API's 46.9 (D). Both do crypto market data. The largest gap is payments & pricing, 90 points. Massive (formerly Polygon.io) accepts x402. CoinDesk Data API doesn't. Category scores, facts, verdicts and…

- Full: https://www.anchorterminal.com/compare/coindesk-data-api-vs-massive.md (~1,500 tokens) · this version ~380 tokens · JSON https://www.anchorterminal.com/compare/coindesk-data-api-vs-massive.json · canonical https://www.anchorterminal.com/compare/coindesk-data-api-vs-massive
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

Massive (formerly Polygon.io) has a score of 70 (BB) against CoinDesk Data API's 46.9 (D). Both do crypto market data. The largest gap is payments & pricing, 90 points. Massive (formerly Polygon.io) accepts x402. CoinDesk Data API doesn't.

- CoinDesk Data API: D 46.9, rank #391 of 452 · https://www.anchorterminal.com/tools/coindesk-data-api.min.md
- Massive (formerly Polygon.io): BB 70, rank #102 of 452 · https://www.anchorterminal.com/tools/massive.min.md
- Pick CoinDesk Data API for security & auth (+10). Pick Massive (formerly Polygon.io) for reliability (+20), schema & documentation (+17), agent ergonomics (+8), payments & pricing (+90), maintenance & community (+56), transparency & trust (+7).

| Category | CoinDesk Data API | Massive (formerly Polygon.io) |
| --- | --- | --- |
| Reliability (16%) | 43 | 63 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 72 | 89 |
| Agent ergonomics (13%) | 70 | 78 |
| Security & auth (14%) | 45 | 35 |
| Payments & pricing (10%) | 0 | 90 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 23 | 79 |
| Transparency & trust (7%) | 61 | 68 |