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/law/usc/18/1030 | B | Proceed | 88% | 187 ms | Yes |
| /api/lei/domain | B | Proceed | 87% | 784 ms | Yes |
| /api/lei/search | B | Proceed | 87% | 500 ms | Yes |
| /api/libraries/lookup | B | Proceed | 87% | 693 ms | Yes |
| /api/library/loc | B | Proceed | 88% | 215 ms | Yes |
| /api/license/Apache-2.0 | B | Proceed | 88% | 228 ms | Yes |
| /api/llm/models | B | Proceed | 88% | 172 ms | Yes |
| /api/lobbying/filings | B | Proceed | 86% | 895 ms | Yes |
| /api/lottery/check | B | Proceed | 88% | 378 ms | Yes |
| /api/lottery/results | B | Proceed | 88% | 298 ms | Yes |
| /api/manufacturing/takt | B | Proceed | 87% | 184 ms | Yes |
| /api/manufacturing/takt | B | Proceed | 88% | 183 ms | Yes |
| /api/manufacturing/yield | B | Proceed | 88% | 186 ms | Yes |
| /api/marine/worms | B | Proceed | 87% | 174 ms | Yes |
| /api/market/adoption | B | Proceed | 88% | 222 ms | Yes |
| /api/market/bestsellers | B | Proceed | 88% | 187 ms | Yes |
| /api/market/categories | B | Proceed | 87% | 185 ms | Yes |
| /api/market/merchants | B | Proceed | 88% | 181 ms | Yes |
| /api/marketing/roas | B | Proceed | 88% | 178 ms | Yes |
| /api/marketing/roas | B | Proceed | 88% | 179 ms | Yes |
| /api/materials/compound | B | Proceed | 88% | 707 ms | Yes |
| /api/math/ab-test | B | Proceed | 88% | 176 ms | Yes |
| /api/math/combinatorics | B | Proceed | 87% | 171 ms | Yes |
| /api/math/eval | B | Proceed | 88% | 179 ms | Yes |
| /api/math/matrix | B | Proceed | 87% | 171 ms | Yes |
| /api/math/number-theory | B | Proceed | 88% | 161 ms | Yes |
| /api/math/polynomial | B | Proceed | 88% | 155 ms | Yes |
| /api/math/probability | B | Proceed | 88% | 173 ms | Yes |
| /api/math/stats | B | Proceed | 88% | 179 ms | Yes |
| /api/mcp-scan | B | Proceed | 88% | 1,175 ms | Yes |
| /api/media/aspect | B | Proceed | 88% | 190 ms | Yes |
| /api/media/aspect | B | Proceed | 88% | 187 ms | Yes |
| /api/media/commons | B | Proceed | 88% | 171 ms | Yes |
| /api/media/cover | B | Proceed | 88% | 181 ms | Yes |
| /api/media/cover | B | Proceed | 88% | 175 ms | Yes |
| /api/media/openverse | B | Proceed | 88% | 178 ms | Yes |
| /api/media/scale | B | Proceed | 88% | 180 ms | Yes |
| /api/medical/adverse-events | B | Proceed | 88% | 172 ms | Yes |
| /api/medical/clinical-trials | B | Proceed | 88% | 168 ms | Yes |
| /api/medical/conditions | B | Proceed | 88% | 178 ms | Yes |
| /api/medical/device-clearances | B | Proceed | 87% | 177 ms | Yes |
| /api/medical/device-events | B | Proceed | 87% | 173 ms | Yes |
| /api/medical/drug-approvals | B | Proceed | 88% | 178 ms | Yes |
| /api/medical/drug-labels | B | Proceed | 88% | 176 ms | Yes |
| /api/medical/drug/metformin | B | Proceed | 86% | 616 ms | Yes |
| /api/medical/icd10 | B | Proceed | 87% | 198 ms | Yes |
| /api/medical/interactions | B | Proceed | 83% | 534 ms | Yes |
| /api/medical/loinc | B | Proceed | 88% | 180 ms | Yes |
| /api/medical/npi | B | Proceed | 88% | 212 ms | Yes |
| /api/medical/rxnorm | B | Proceed | 88% | 171 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.