Head to head
Blockrun vs send21
Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.
No reviews yet
Web search, deep research, prediction markets & crypto data for AI agents. Pay per call via x402.
Full listingNo reviews yet
Non-custodial payment drafts/pay links for BTC, USDC, USDT, EURC. Never holds keys.
Full listingThe short version
Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. Both score close on the safety scan (82 and 79 out of 100). send21 is hosted and callable through the gateway; Blockrun runs on your own machine. Blockrun has noticeably more public adoption.
| Blockrun | send21 | |
|---|---|---|
| User rating | No reviews yet | No reviews yet |
| Safety grade | B82/100 | B79/100 |
| Adoption | Established | Growing |
| GitHub stars | 394 | 0 |
| Downloads / week | 474 | – |
| Runs where | Your machine (local) | Hosted (remote) |
| Gateway-ready | No | Yes |
| Tools | 19 | 9 |
| Write actions | — | 2 |
| Price per call | Free | Free |
| Licence | MIT | MIT |
| Last release | 2026-09-16 | 2026-09-06 |
| Category | Finance | Finance |