Payments on Base + Solana
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saylorinnovations.com has 1,677 x402 endpoints in our catalog. Right now: 1,146 proceed, 324 caution, 207 avoid. 1,354 passed a real paid test: we paid the listed price and got what the listing promised. Best grade: B.
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 |
|---|---|---|---|---|---|
| /api/chain/aave-reserve | B | Proceed | 88% | 182 ms | Yes |
| /api/chain/activity-map | B | Proceed | 90% | 189 ms | Yes |
| /api/chain/allowance | B | Proceed | 90% | 177 ms | Yes |
| /api/chain/batch-call | B | Proceed | 90% | 185 ms | Yes |
| /api/chain/blob-fee | B | Proceed | 90% | 204 ms | Yes |
| /api/chain/block | B | Proceed | 90% | 201 ms | Yes |
| /api/chain/block-at-time | B | Proceed | 90% | 186 ms | Yes |
| /api/chain/block-number | B | Proceed | 90% | 182 ms | Yes |
| /api/chain/call | B | Proceed | 90% | 176 ms | Yes |
| /api/chain/chain-id | B | Proceed | 90% | 180 ms | Yes |
| /api/chain/code | B | Proceed | 90% | 183 ms | Yes |
| /api/chain/compound-market | B | Proceed | 90% | 184 ms | Yes |
| /api/chain/create-address | B | Proceed | 90% | 183 ms | Yes |
| /api/chain/create2-address | B | Proceed | 90% | 182 ms | Yes |
| /api/chain/decode-calldata | B | Proceed | 90% | 184 ms | Yes |
| /api/chain/deployed-on | B | Proceed | 90% | 186 ms | Yes |
| /api/chain/eip712-hash | B | Proceed | 90% | 183 ms | Yes |
| /api/chain/encode-call | B | Proceed | 90% | 192 ms | Yes |
| /api/chain/ens-expiry | B | Proceed | 90% | 186 ms | Yes |
| /api/chain/ens-namehash | B | Proceed | 90% | 189 ms | Yes |
| /api/chain/erc1155-balance | B | Proceed | 90% | 186 ms | Yes |
| /api/chain/erc20-balance | B | Proceed | 90% | 171 ms | Yes |
| /api/chain/erc20-transfers | B | Proceed | 89% | 182 ms | Yes |
| /api/chain/erc721-tokens | B | Proceed | 90% | 193 ms | Yes |
| /api/chain/estimate-gas | B | Proceed | 90% | 180 ms | Yes |
| /api/chain/eth-staking-deposits | B | Proceed | 90% | 208 ms | Yes |
| /api/chain/events | B | Proceed | 90% | 194 ms | Yes |
| /api/chain/fee-history | B | Proceed | 90% | 190 ms | Yes |
| /api/chain/function-selectors | B | Proceed | 90% | 197 ms | Yes |
| /api/chain/gas-forecast | B | Proceed | 89% | 190 ms | Yes |
| /api/chain/gas-price | B | Proceed | 90% | 190 ms | Yes |
| /api/chain/interfaces | B | Proceed | 90% | 193 ms | Yes |
| /api/chain/l1-fee | B | Proceed | 90% | 174 ms | Yes |
| /api/chain/lido-stats | B | Proceed | 90% | 204 ms | Yes |
| /api/chain/live-balance | B | Proceed | 90% | 182 ms | Yes |
| /api/chain/network-info | B | Proceed | 90% | 188 ms | Yes |
| /api/chain/nft-holdings | B | Proceed | 90% | 184 ms | Yes |
| /api/chain/nft-metadata | B | Proceed | 90% | 181 ms | Yes |
| /api/chain/nft-owner | B | Proceed | 89% | 176 ms | Yes |
| /api/chain/ownership | B | Proceed | 90% | 187 ms | Yes |
| /api/chain/pending-block | B | Proceed | 90% | 181 ms | Yes |
| /api/chain/pending-nonce | B | Proceed | 90% | 190 ms | Yes |
| /api/chain/pending-tx | B | Proceed | 90% | 182 ms | Yes |
| /api/chain/proxy | B | Proceed | 90% | 181 ms | Yes |
| /api/chain/safe-info | B | Proceed | 90% | 176 ms | Yes |
| /api/chain/signature-hash | B | Proceed | 90% | 184 ms | Yes |
| /api/chain/signature-lookup | B | Proceed | 90% | 180 ms | Yes |
| /api/chain/stablecoin-balances | B | Proceed | 90% | 180 ms | Yes |
| /api/chain/status-all | B | Proceed | 89% | 343 ms | Yes |
| /api/chain/storage | B | Proceed | 90% | 185 ms | Yes |
1,146 of saylorinnovations.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. 207 are rated Avoid, so check the exact endpoint before paying. 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.