AllowanceGuard
allowance.schemasure.com · 1 paid endpoint · listed 2026-10-30
Decide whether to grant an ERC-20, NFT or Permit2 allowance before signing it. Send owner, token, spender and amount, or the unsigned approve, setApprovalForAll or Permit2 calldata. Returns allow, warn, block or unknown with the allowance already on chain, the requested scope and the rule behind it, whether this raises or lowers exposure, and whether the spender is a contract, upgradeable or denylisted. Returns unknown rather than guessing. Not a guarantee a spender is honest.
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| POST | allowance.schemasure.com/v1/guard/allowance Decide whether to grant an ERC-20, NFT or Permit2 allowance before signing it. Send owner, token, spender and amount, or the unsigned approve, setApprovalForAll | $0.03 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 8 h ago | allowance.schemasure.com/v1/guard/allowance | 402 | 417 | valid x402 v2 terms |
Income on Base (7 days)
This provider's payout address is shared by several providers, so its income is not shown as its own.
Is this your API?
<a href="https://logicnodes.io/observatory/p/allowance.schemasure.com"><img src="https://logicnodes.io/observatory/badge/allowance.schemasure.com.svg" alt="x402 status"></a>
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/allowance.schemasure.com