ScriptMasterLabs.com · x402 Directory
What are the best x402 fact-check APIs?
Fact-checking is where x402 pricing meets a quality gate. Script Master Labs' entries: ClaimGate checks a claim for 0.25 USDC and only calls it SUPPORTED at coherence ≥ 0.80 across at least 2 independent source families; Verdict Protocol decides at 0.25 USDC and seals at 0.01 USDC — its seal settle-proven on November 2, 2026 (SELF-PROOF; transaction on its service page). Third parties below are described only with facts their own listings state.
Selection method, stated plainly: built from this directory's live data on 2026-11-02. A row appears if a facilitator discovery endpoint reported it, the verified SML payment-offers dataset carries it, or its live challenge was probe-verified — and it matched this list's topic. Stale rows and known-defect rows are excluded. SML entries are pinned first by the directory's ranking (settle-proven, then SML, then 30-day call activity as reported by facilitators). No placement is paid: listings are free and the featured flag is off for every row.
| Resource | Service | Price (first option) | Networks | Pay to | Reported by | State |
|---|---|---|---|---|---|---|
Verdict Protocolhttps://verdict.scriptmasterlabs.com/seal · live endpoint ↗Verdict seal receipt — seal an existing decision (POST /seal) | Verdict Protocol | 0.01 USDCBase · exact+4 more options | Base, Arc | 0x5BBd32e0478e49A7540EF2D760E0B0F9AA6328b2 | OMNIGATE (https://mcp-x402.onrender.com), PayAI, Coinbase CDP | SETTLE-PROVEN · SELF-PROOFSMLLIVE |
Provider Trust (CANON)https://provider-trust-mcp.onrender.com/mcp · live endpoint ↗Provider verification (verify_provider) — 2 offers on this resource in the payment-offers dataset. | Provider Trust (CANON) | 0.001 USDCBase · exact+1 more option | Base | 0x5bbd32e0478e49a7540ef2d760e0b0f9aa6328b2 | OMNIGATE (https://mcp-x402.onrender.com) | SETTLE-PROVEN · SELF-PROOFSMLLIVE |
B20 Truthhttps://b20.scriptmasterlabs.com/v1/report/{address} · live endpoint ↗B20 token full report (GET /v1/report/{address}; MCP tool b20_check) | B20 Truth | 0.02 USDCBase · exact | Base | 0x5BBd32e0478e49A7540EF2D760E0B0F9AA6328b2 | OMNIGATE (https://mcp-x402.onrender.com) | SETTLE-PROVEN · SELF-PROOFSMLLIVE |
ClaimGatehttps://claimgate.onrender.com/mcp · live endpoint ↗Claim fact check with Jev jury + coherence gate (fact_check_claim) | ClaimGate | 0.25 USDCBase · exact+3 more options | Base, Solana, XRPL | 0x5BBd32e0478e49A7540EF2D760E0B0F9AA6328b2 | OMNIGATE (https://mcp-x402.onrender.com), PayAI | SMLLIVE |
Verdict Protocolhttps://verdict.scriptmasterlabs.com/decide · live endpoint ↗Verdict decision receipt — Jev jury decision, sealed (POST /decide; MCP tool verdict_decide) | Verdict Protocol | 0.25 USDCBase · exact+2 more options | Base, Arc | 0x5BBd32e0478e49A7540EF2D760E0B0F9AA6328b2 | OMNIGATE (https://mcp-x402.onrender.com), PayAI | SMLLIVE |
OMNIGATE (SML x402 gateway) · squeezeos (via OMNIGATE Runtime) · mnemos (via OMNIGATE Runtime)https://mcp-x402.onrender.com/mcp · live endpoint ↗OMNIGATE Jev interference verdict (interfere) — 36 offers on this resource in the payment-offers dataset. | OMNIGATE (SML x402 gateway) | 0.25 USDCBase · exact+5 more options | Base | 0x5bbd32e0478e49a7540ef2d760e0b0f9aa6328b2 | OMNIGATE (https://mcp-x402.onrender.com) | SMLLIVE |
SML Agent Verifyhttps://sml-agent-verify.onrender.com/mcp · live endpoint ↗Agent Verify proof check (proof_check) | SML Agent Verify | 0.05 USDCBase · exact+2 more options | Base, Solana, XRPL | 0x5BBd32e0478e49A7540EF2D760E0B0F9AA6328b2 | OMNIGATE (https://mcp-x402.onrender.com) | SMLLIVE |
PRO-LOhttps://pro-lo.onrender.com/api/x402/coherence-jev-verdict · live endpoint ↗Coherence + Jev verdict (POST /api/x402/coherence-jev-verdict; MCP tool coherence_jev_verdict) | PRO-LO | 0.25 RLUSDXRPL · exact+2 more options | XRPL, Xahau, Base | rEmdJWrAWFtud1vFN8Zm8eWkgK4AVMWPiX | 402Proof invoice rail (https://four02proof.onrender.com) | SMLLIVE |
PRO-LOhttps://pro-lo.onrender.com/api/x402/earnings-gate · live endpoint ↗Earnings gate verdict (POST /api/x402/earnings-gate; MCP tool earnings_gate_verdict) | PRO-LO | 0.25 RLUSDXRPL · exact+2 more options | XRPL, Xahau, Base | rEmdJWrAWFtud1vFN8Zm8eWkgK4AVMWPiX | 402Proof invoice rail (https://four02proof.onrender.com) | SMLLIVE |
https://market.datapackvibe.com/x402/assistant-ib26-news-02-002https://market.datapackvibe.com/x402/assistant-ib26-news-02-002 · live endpoint ↗Source attribution — Record quality audit + Exact row deduplication: Record quality audit + Exact row deduplication for supplied source attribution records (cited_sources, verified_links). Up to 200 rows; 2 independent r | — | 0.01 USDCBase · exact | Base | 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C | Coinbase CDP | LIVE |
https://market.datapackvibe.com/x402/assistant-ib26-game-14-086https://market.datapackvibe.com/x402/assistant-ib26-game-14-086 · live endpoint ↗Build artifacts — Grouped numeric summary + Category frequencies: Grouped numeric summary + Category frequencies for supplied build artifacts records (artifact_mb, build_seconds). Up to 200 rows; 2 independent reports us | — | 0.01 USDCBase · exact | Base | 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C | Coinbase CDP | LIVE |
APKCube Android APK Fetchhttps://apkcube.com/api/v1/apps/:packageName/fetch · live endpoint ↗Fetch an Android app from Google Play into the APKCube catalogue when no APK is held yet: opens a job that downloads and verifies the app, usually within a few minutes. Turns a Google Play package name into a downloadabl | — | 0.1 USDCBase · exact+3 more options | Base, Solana | 0xaf4ed8d6d780d15e0937e7fbe65627ed451e9c09 | Coinbase CDP | LIVE |
https://market.datapackvibe.com/x402/assistant-bx-token-evidence-coverage-thresholdhttps://market.datapackvibe.com/x402/assistant-bx-token-evidence-coverage-threshold · live endpoint ↗Token assessment evidence coverage — Threshold classification: Threshold classification for Token assessment evidence coverage. Supplied token observations only. Deterministic calculation or caller-threshold verdict, not | — | 0.01 USDCBase · exact | Base | 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C | Coinbase CDP | LIVE |
Readability scorehttps://api.gadgethumans.com/readability · live endpoint ↗Score text for readability: Flesch reading ease, Flesch-Kincaid grade, average sentence length and syllable count, with a plain-English verdict. Pure CPU, instant. | — | 0.002 USDCBase · exact+1 more option | Base, Solana | 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34 | PayAI | LIVE |
GCD and LCMhttps://api.gadgethumans.com/gcd-lcm · live endpoint ↗Compute greatest common divisor and least common multiple for a list of integers. Pure CPU, instant. | — | 0.002 USDCBase · exact+1 more option | Base, Solana | 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34 | PayAI | LIVE |
Factorialhttps://api.gadgethumans.com/factorial · live endpoint ↗Compute the factorial of a number with exact big-integer precision and its digit count. Pure CPU, instant. | — | 0.002 USDCBase · exact+1 more option | Base, Solana | 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34 | PayAI | LIVE |
https://market.datapackvibe.com/x402/assistant-ib26-company-23-069https://market.datapackvibe.com/x402/assistant-ib26-company-23-069 · live endpoint ↗Business website inventories — Duplicate key report + Keyed dataset comparison: Duplicate key report + Keyed dataset comparison for supplied business website inventories records (page_count, verified_pages). Up to 200 ro | — | 0.01 USDCBase · exact | Base | 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C | Coinbase CDP | LIVE |
https://market.datapackvibe.com/x402/assistant-ib26-finance-17-166https://market.datapackvibe.com/x402/assistant-ib26-finance-17-166 · live endpoint ↗Expense claims — Base-100 series + Secondary-measure weighted mean: Base-100 series + Secondary-measure weighted mean for supplied expense claims records (claimed_amount, approved_amount). Up to 200 rows; 2 independent r | — | 0.01 USDCBase · exact | Base | 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C | Coinbase CDP | LIVE |
Parse cron expressionhttps://api.gadgethumans.com/cron-parse · live endpoint ↗Explain a cron expression in plain English and return the next scheduled run times. Pure CPU, instant. Use to verify a schedule before deploying it. | — | 0.002 USDCBase · exact+1 more option | Base, Solana | 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34 | PayAI | LIVE |
https://mpp.hyreagent.fun/trenches/new-tokenshttps://mpp.hyreagent.fun/trenches/new-tokens · live endpoint ↗Real-time PumpFun token launches with AI snipe verdict (holder concentration, dev history, freeze/mint authority). Sources: PumpPortal. | — | 0.08 USDCSolana · exact | Solana | 7G73PLhKvAPBGTzG5ESAE4coE7QrVeTTKfhTxQZbyGgC | PayAI | LIVE |
Decode JWThttps://api.gadgethumans.com/jwt-decode · live endpoint ↗Decode a JWT into its header and payload without verifying the signature, and report expiry and time-to-live. Pure CPU, instant. Use to inspect a token's claims and clock skew. | — | 0.002 USDCBase · exact+1 more option | Base, Solana | 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34 | PayAI | LIVE |
Compare hasheshttps://api.gadgethumans.com/hash-compare · live endpoint ↗Compare two hashes for equality and detect which algorithm produced them by digest length. Pure CPU, instant. | — | 0.001 USDCBase · exact+1 more option | Base, Solana | 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34 | PayAI | LIVE |
Hash texthttps://api.gadgethumans.com/hash · live endpoint ↗Generate a cryptographic hash of text: SHA-256 (default), SHA-384, SHA-512, SHA-1 or MD5, returned as a hex digest. Pure CPU, instant, no upstream. Use to fingerprint a string, verify a payload or compute a checksum. | — | 0.001 USDCBase · exact | Base | 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34 | PayAI | LIVE |
https://market.datapackvibe.com/x402/assistant-bx-token-unique-trade-ratio-target-gaphttps://market.datapackvibe.com/x402/assistant-bx-token-unique-trade-ratio-target-gap · live endpoint ↗Unique observed token traders per trade — Target gap calculation: Target gap calculation for Unique observed token traders per trade. Supplied token observations only. Deterministic calculation or caller-threshold verdic | — | 0.01 USDCBase · exact | Base | 0x8bc2AECdD86097F74a1a5fa17764108D9a683C8C | Coinbase CDP | LIVE |
Validate an EU VAT numberhttps://api.gadgethumans.com/eu-vat · live endpoint ↗Validate an EU VAT number against VIES (the European Commission database) and return the registered company name, address, country and standard VAT rate. Use to verify a VAT ID, check a supplier or customer before invoic | — | 0.002 USDCBase · exact+1 more option | Base, Solana | 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34 | PayAI, Coinbase CDP | LIVE |