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saylorinnovations.com x402 API: grades and paid tests

saylorinnovations.com has 1,677 x402 endpoints in our catalog. Right now: 1,117 proceed, 354 caution, 206 avoid. 1,354 passed a real paid test: we paid the listed price and got what the listing promised. Best grade: B.

1,117Proceed
354Caution
206Avoid
1,354Passed a paid test

Every endpoint on saylorinnovations.com

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/kb/python-dateutil-parse-ambiguity-dayfirst-relativedelta-month-end	F	Avoid	48%	146 ms	Yes
/api/kb/python-environment-variables-config-dotenv-pitfalls	F	Avoid	48%	142 ms	Yes
/api/kb/python-exceptions-raise-from-finally-return-bare-raise-gotchas	F	Avoid	48%	70 ms	Yes
/api/kb/python-file-io-encoding-newlines-bom-atomic-write	F	Avoid	47%	67 ms	Yes
/api/kb/python-import-errors-circular-imports-shadowed-modules	F	Avoid	47%	76 ms	Yes
/api/kb/python-json-decode-errors-api-responses	F	Avoid	47%	160 ms	Yes
/api/kb/python-jsonschema-validation-errors-formats-additionalproperties	F	Avoid	47%	141 ms	Yes
/api/kb/python-logging-pitfalls-basicconfig-duplicates-json	F	Avoid	47%	178 ms	Yes
/api/kb/python-lru-cache-pitfalls-unhashable-arguments-methods-memory-stale-data	F	Avoid	47%	137 ms	Yes
/api/kb/python-memory-leak-and-growth	F	Avoid	47%	65 ms	Yes
/api/kb/python-modulenotfounderror-import-errors	F	Avoid	47%	151 ms	Yes
/api/kb/python-multiprocessing-pickle-errors-spawn-local-function-hang	F	Avoid	47%	141 ms	Yes
/api/kb/python-profiling-cprofile-timeit-tracemalloc-list-vs-set-join	F	Avoid	47%	165 ms	Yes
/api/kb/python-pyproject-toml-src-layout-editable-install-console-scripts	F	Avoid	47%	145 ms	Yes
/api/kb/python-random-seed-reproducibility-shuffle-sample-choices-secrets-boundaries	F	Avoid	47%	144 ms	Yes
/api/kb/python-regex-cookbook-groups-lookahead-greedy	F	Avoid	47%	131 ms	Yes
/api/kb/python-requests-timeouts-and-retries	F	Avoid	47%	166 ms	Yes
/api/kb/python-requests-timeouts-sessions-json-pitfalls	F	Avoid	47%	141 ms	Yes
/api/kb/python-sorting-gotchas-key-mixed-types-nan-locale	F	Avoid	47%	195 ms	Yes
/api/kb/python-sqlite3-module-parameters-transactions-threads	F	Avoid	47%	139 ms	Yes
/api/kb/python-string-formatting-fstring-format-spec-rounding-percent-pitfalls	F	Avoid	47%	147 ms	Yes
/api/kb/python-subprocess-pitfalls-shell-timeouts-errors	F	Avoid	47%	171 ms	Yes
/api/kb/python-threads-vs-processes-concurrent-futures-gil	F	Avoid	47%	161 ms	Yes
/api/kb/python-truthiness-identity-rounding-floor-division-gotchas	F	Avoid	47%	162 ms	Yes
/api/kb/rag-retrieval-quality-debugging	F	Avoid	47%	133 ms	Yes
/api/kb/react-useeffect-infinite-loop	F	Avoid	47%	183 ms	Yes
/api/kb/redis-connection-refused-timeout-errors	F	Avoid	47%	174 ms	Yes
/api/kb/redis-memory-eviction-oom	F	Avoid	47%	170 ms	Yes
/api/kb/regex-catastrophic-backtracking-redos	F	Avoid	47%	173 ms	Yes
/api/kb/robots-txt-parsing-python-urllib-allow-order-wildcards-crawl-delay	F	Avoid	47%	147 ms	Yes
/api/kb/rsync-cookbook-trailing-slash-delete-dry-run-exclude	F	Avoid	47%	193 ms	Yes
/api/kb/sed-awk-cookbook-text-processing-linux	F	Avoid	47%	147 ms	Yes
/api/kb/serverless-function-timeout-502-netlify-vercel	F	Avoid	47%	182 ms	Yes
/api/kb/smart-contract-quick-audit-checklist	F	Avoid	47%	143 ms	Yes
/api/kb/solana-token-account-ata-errors	F	Avoid	47%	163 ms	Yes
/api/kb/sql-joins-pitfalls-left-join-where-fanout-anti-join-not-in-null	F	Avoid	47%	139 ms	Yes
/api/kb/sql-null-handling-pitfalls-three-valued-logic	F	Avoid	47%	146 ms	Yes
/api/kb/sql-window-functions-cookbook-running-totals-top-n	F	Avoid	47%	187 ms	Yes
/api/kb/sqlalchemy-detached-instance-session-errors	F	Avoid	47%	178 ms	Yes
/api/kb/sqlite-backup-vacuum-wal-checkpoint-safe-copy-integrity-check	F	Avoid	47%	147 ms	Yes
/api/kb/sqlite-database-is-locked-fix	F	Avoid	47%	172 ms	Yes
/api/kb/sqlite-explain-query-plan-index-design	F	Avoid	47%	169 ms	Yes
/api/kb/sqlite-fts5-full-text-search-agent-memory-queries-syntax-errors	F	Avoid	47%	154 ms	Yes
/api/kb/sqlite-upsert-recursive-cte-json-functions-date-math	F	Avoid	47%	167 ms	Yes
/api/kb/ssh-permission-denied-publickey	F	Avoid	47%	153 ms	Yes
/api/kb/ssl-certificate-verify-failed-python-requests-curl-self-signed	F	Avoid	45%	180 ms	Yes
/api/kb/stripe-webhook-signature-verification-failures	F	Avoid	47%	176 ms	Yes
/api/kb/systemd-service-unit-file-mistakes-verify-restart-environment	F	Avoid	45%	163 ms	Yes
/api/kb/systemd-timer-not-firing	F	Avoid	47%	164 ms	Yes
/api/kb/tar-zip-gzip-cookbook-exclude-extract-checksums	F	Avoid	47%	139 ms	Yes

About saylorinnovations.com

Is saylorinnovations.com safe to pay?

1,117 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. 206 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.

How are these grades made?

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.

Can my agent check saylorinnovations.com before paying?

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.

Do you run saylorinnovations.com? Prove your endpoints work: get tested, check your setup, or add endpoints we're missing. Every seller's results are public, here and in the full catalog.