Payments on Base + Solana
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chain.openverbs.com has 27 x402 endpoints in our catalog. Right now: 4 proceed, 23 caution. 4 passed a real paid test: we paid the listed price and got what the listing promised. Best grade: A.
Best grades first. Open an endpoint for its full history: uptime, price and payout-wallet changes, and paid-test results with signed receipts.
| Endpoint | Grade | Verdict | Uptime (7 days) | Response time | Paid test passed |
|---|---|---|---|---|---|
| /v1/btc-fees | A | Proceed | 100% | 677 ms | Yes |
| /v1/btc-mempool | A | Proceed | 100% | 751 ms | Yes |
| /v1/gas | A | Proceed | 100% | 656 ms | Yes |
| /v1/sanctions | A | Proceed | 100% | 586 ms | Yes |
| /v1/abi | C | Caution | 100% | 701 ms | – |
| /v1/address | C | Caution | 100% | 701 ms | – |
| /v1/block | C | Caution | 100% | 652 ms | – |
| /v1/btc-address | C | Caution | 100% | 689 ms | – |
| /v1/btc-tx | C | Caution | 100% | 663 ms | – |
| /v1/bytecode | C | Caution | 100% | 678 ms | – |
| /v1/decode | C | Caution | 100% | 625 ms | – |
| /v1/ens-records | C | Caution | 100% | 636 ms | – |
| /v1/ens-resolve | C | Caution | 100% | 687 ms | – |
| /v1/ens-reverse | C | Caution | 100% | 668 ms | – |
| /v1/explain | C | Caution | 100% | 597 ms | – |
| /v1/gas-estimate | C | Caution | 100% | 584 ms | – |
| /v1/logs | C | Caution | 100% | 575 ms | – |
| /v1/nft-metadata | C | Caution | 100% | 587 ms | – |
| /v1/proxy | C | Caution | 100% | 574 ms | – |
| /v1/read-contract | C | Caution | 100% | 571 ms | – |
| /v1/receipt | C | Caution | 100% | 596 ms | – |
| /v1/source | C | Caution | 100% | 580 ms | – |
| /v1/token | C | Caution | 100% | 576 ms | – |
| /v1/token-allowance | C | Caution | 100% | 576 ms | – |
| /v1/token-balance | C | Caution | 100% | 587 ms | – |
| /v1/token-risk | C | Caution | 100% | 559 ms | – |
| /v1/tx | C | Caution | 100% | 559 ms | – |
4 of chain.openverbs.com's endpoints are rated Proceed: reliable in monitoring with a stable price and payout wallet, and the best ones delivered in a real paid test. Grades are per endpoint, so look up the one your agent is about to pay.
Lumière PayCheck checks every endpoint about every 30 minutes: does it answer with a valid x402 quote, is the price and payout wallet stable. Then we pay some of them for real and check the response against what the listing promised. Failures are re-tested before they count. How it works.
Yes, for free. Call check_payment (API or MCP) with the endpoint, amount and payTo from the 402 quote, and pay only if it returns allow. Check an endpoint now.