Checkpoint402 Tx Explainer
api.checkpoint402.com · 6 paid endpoints · listed 2026-10-27
Explains any Base or Ethereum transaction in plain English: who sent what to whom, which tokens/NFTs moved, the function called, success/failure and fee — plus the structured decoded data.
livelast check 27 h ago
100%valid x402 answers, 72 h
$0.02USDC received on Base, 7 days
1distinct payers, 7 days
52.1score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | api.checkpoint402.com/v1/token-check Is this token a scam? Checks any token on Base, Ethereum or BSC and returns a 0-100 safety score, a verdict, red flags (honeypot, hidden fees, owner powers, unl | $0.02 | Base |
| GET | api.checkpoint402.com/v1/tx-explain Explains any Base or Ethereum transaction in plain English: who sent what to whom, which tokens/NFTs moved, the function called, success/failure and fee — plus | $0.03 | Base |
| GET | api.checkpoint402.com/v1/defi-yields Top DeFi yields across 16k+ pools, filtered by asset, chain, minimum TVL and risk, each with a simple explained risk tier (outlier APY, thin TVL, reward-heavy, | $0.05 | Base |
| GET | api.checkpoint402.com/v1/sanctions-screen Screens a person/company name (fuzzy, alias-aware) and/or a crypto wallet address against the US Treasury OFAC SDN list, refreshed twice daily, including the ex | $0.05 | Base |
| GET | api.checkpoint402.com/v1/company-events Latest SEC 8-K filings — market-wide within minutes of filing, or for one ticker — with each item code translated to plain English, high-impact events flagged ( | $0.10 | Base |
| GET | api.checkpoint402.com/v1/new-tokens Newly launched token pools on Base, Ethereum or BSC, each with a 0-100 safety score and explicit red flags (honeypot, unverified code, mintable, owner powers, h | $0.10 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 27 h ago | api.checkpoint402.com/v1/defi-yields | 402 | 481 | valid x402 v2 terms |
| 7 days ago | api.checkpoint402.com/v1/company-events | 402 | 466 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-11-02 | 1 | $0.02 |
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Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/api.checkpoint402.com