{ "x402Version": 2, "id": 34930, "slug": "34930", "resource": "https://presign-guard.fizzl.eu/v1/approvals", "description": "Wallet approval audit (green/orange/red, grade, one-line summary): every open ERC-20 allowance of an EVM wallet with who the spender is (flagged, plain wallet, unverified, unlimited) and which ones to revoke. Bulk: 100 checks for $0.80 via /v1/credits.", "type": "http", "serviceName": "presign-guard", "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791125199/bazaar-icons/dae343325dc2ef3d.png", "resourceType": "Payments", "accepts": [ { "scheme": "exact", "network": "eip155:8453", "payTo": "0x6B0F4651eD42893ab58139938175E4a69f175F25", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "20000", "amountUsd": 0.02, "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "payTo": "ATWJ82T8nRdQwZnaysB68N5EpaSvLRsQP4h6eWmaJBH9", "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v", "amount": "20000", "amountUsd": 0.02, "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "xrpl:0", "payTo": "r9xmBsRr8Ao7jRgjjxreMiAwGiCK2FGwqw", "asset": "524C555344000000000000000000000000000000", "amount": "0.02", "maxTimeoutSeconds": 300 }, { "scheme": "exact", "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=", "payTo": "LOYVFSQ6ZTS2YWUW4GQ5L6VPP2TPIOXWYDACK53CPOHQQHLDMEMKJDXAX4", "asset": "31566704", "amount": "20000", "maxTimeoutSeconds": 300 } ], "outputSchema": { "properties": { "example": { "properties": { "approvals": { "description": "Per allowance: token, spender (address, name, trusted, contract), amount, approvedAt, severity, codes, revoke", "items": { "type": "object" }, "type": "array" }, "checkedAt": { "type": "string" }, "grade": { "enum": [ "SAFE", "CAUTION", "RISKY", "AVOID" ], "type": "string" }, "one_liner": { "type": "string" }, "reasons": { "items": { "properties": { "code": { "type": "string" }, "details": {}, "severity": { "enum": [ "red", "orange", "info" ], "type": "string" } }, "required": [ "code", "severity" ], "type": "object" }, "type": "array" }, "receipt": { "description": "Signature over this whole answer (without receipt.signature), so the verdict can be verified later: EIP-191 personal_sign over canonical JSON (sorted keys, compact, ASCII-escaped). Signer addresses: /.well-known/presign-guard-signer.json; free check: POST /v1/verify.", "properties": { "algorithm": { "enum": [ "eip191-canonical-json-v1" ], "type": "string" }, "cert": { "description": "The payout wallet's certificate for this signing key: personal_sign by authority over 'fizzl receipt signer\\nservice: \\nsigner: \\nvalid_from: '. Pin the payout wallet and a rotated key still verifies.", "properties": { "authority": { "type": "string" }, "service": { "type": "string" }, "signature": { "type": "string" }, "signer": { "type": "string" }, "valid_from": { "type": "string" } }, "type": "object" }, "input_sha256": { "description": "sha256 of canonical JSON {route, input}: your body (POST) or query parameters (GET)", "type": "string" }, "payment": { "description": "The payment behind this answer, from your x402 payment payload. EVM: payer + EIP-3009 nonce; find the settlement as AuthorizationUsed(payer, nonce) on the asset contract. Solana: payer + sha256 of the signed transaction you sent.", "properties": { "amount": { "type": "string" }, "asset": { "type": "string" }, "network": { "type": "string" }, "nonce": { "type": "string" }, "pay_to": { "type": "string" }, "payer": { "type": "string" }, "proof": { "enum": [ "eip3009", "svm-transaction" ], "type": "string" }, "transaction_sha256": { "type": "string" } }, "type": "object" }, "request_id": { "type": "string" }, "route": { "type": "string" }, "signature": { "type": "string" }, "signed_at": { "type": "string" }, "signer": { "type": "string" } }, "required": [ "request_id", "route", "input_sha256", "signed_at", "signer", "algorithm", "signature" ], "type": "object" }, "revokeUrl": { "type": "string" }, "summary": { "description": "approvals, tokens, unlimited, toRevoke", "type": "object" }, "verdict": { "enum": [ "green", "orange", "red" ], "type": "string" } }, "required": [ "verdict", "grade", "one_liner", "reasons", "approvals" ], "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" }, "extensions": { "bazaar": { "info": { "input": { "method": "GET", "queryParams": { "address": "0x28c6c06298d514db089934071355e5743bf21d60", "chain": "ethereum" }, "type": "http" }, "output": { "example": { "approvals": [ { "amount": "unlimited", "approvedAt": "2025-03-01T10:00:00.000Z", "codes": [ { "code": "UNLIMITED_APPROVAL", "severity": "orange" } ], "revoke": true, "severity": "orange", "spender": { "address": "0x1111111254eeb25477b68fb85ed929f73a960582", "contract": true, "name": "AggregationRouterV5", "trusted": false }, "token": { "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913", "name": "USD Coin", "symbol": "USDC" }, "unlimited": true } ], "grade": "CAUTION", "one_liner": "CAUTION: 3 approvals, 1 unlimited; revoke 1", "reasons": [ { "code": "UNLIMITED_APPROVAL", "details": { "count": 1, "spenders": [ "0x1111111254eeb25477b68fb85ed929f73a960582" ] }, "severity": "orange" }, { "code": "STALE_APPROVAL", "details": { "count": 2, "spenders": [ "0x000000000022d473030f116ddee9f6b43ac78ba3" ] }, "severity": "info" } ], "revokeUrl": "https://revoke.cash/address/0x...?chainId=8453", "summary": { "approvals": 3, "toRevoke": 1, "tokens": 2, "unlimited": 1 }, "verdict": "orange" }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "method": { "enum": [ "GET" ], "type": "string" }, "queryParams": { "properties": { "address": { "description": "Wallet address (0x...)", "type": "string" }, "chain": { "description": "EVM chain to audit", "enum": [ "base", "ethereum", "arbitrum", "optimism", "polygon", "bsc" ], "type": "string" } }, "required": [ "chain", "address" ], "type": "object" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method" ], "type": "object" }, "output": { "properties": { "example": { "properties": { "approvals": { "description": "Per allowance: token, spender (address, name, trusted, contract), amount, approvedAt, severity, codes, revoke", "items": { "type": "object" }, "type": "array" }, "checkedAt": { "type": "string" }, "grade": { "enum": [ "SAFE", "CAUTION", "RISKY", "AVOID" ], "type": "string" }, "one_liner": { "type": "string" }, "reasons": { "items": { "properties": { "code": { "type": "string" }, "details": {}, "severity": { "enum": [ "red", "orange", "info" ], "type": "string" } }, "required": [ "code", "severity" ], "type": "object" }, "type": "array" }, "receipt": { "description": "Signature over this whole answer (without receipt.signature), so the verdict can be verified later: EIP-191 personal_sign over canonical JSON (sorted keys, compact, ASCII-escaped). Signer addresses: /.well-known/presign-guard-signer.json; free check: POST /v1/verify.", "properties": { "algorithm": { "enum": [ "eip191-canonical-json-v1" ], "type": "string" }, "cert": { "description": "The payout wallet's certificate for this signing key: personal_sign by authority over 'fizzl receipt signer\\nservice: \\nsigner: \\nvalid_from: '. Pin the payout wallet and a rotated key still verifies.", "properties": { "authority": { "type": "string" }, "service": { "type": "string" }, "signature": { "type": "string" }, "signer": { "type": "string" }, "valid_from": { "type": "string" } }, "type": "object" }, "input_sha256": { "description": "sha256 of canonical JSON {route, input}: your body (POST) or query parameters (GET)", "type": "string" }, "payment": { "description": "The payment behind this answer, from your x402 payment payload. EVM: payer + EIP-3009 nonce; find the settlement as AuthorizationUsed(payer, nonce) on the asset contract. Solana: payer + sha256 of the signed transaction you sent.", "properties": { "amount": { "type": "string" }, "asset": { "type": "string" }, "network": { "type": "string" }, "nonce": { "type": "string" }, "pay_to": { "type": "string" }, "payer": { "type": "string" }, "proof": { "enum": [ "eip3009", "svm-transaction" ], "type": "string" }, "transaction_sha256": { "type": "string" } }, "type": "object" }, "request_id": { "type": "string" }, "route": { "type": "string" }, "signature": { "type": "string" }, "signed_at": { "type": "string" }, "signer": { "type": "string" } }, "required": [ "request_id", "route", "input_sha256", "signed_at", "signer", "algorithm", "signature" ], "type": "object" }, "revokeUrl": { "type": "string" }, "summary": { "description": "approvals, tokens, unlimited, toRevoke", "type": "object" }, "verdict": { "enum": [ "green", "orange", "red" ], "type": "string" } }, "required": [ "verdict", "grade", "one_liner", "reasons", "approvals" ], "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" } }, "required": [ "input" ], "type": "object" } } }, "tags": [ "wallet-security", "approvals", "revoke", "agents", "bazaar" ], "sourceHost": "presign-guard.fizzl.eu", "lastUpdated": "2026-10-08T06:26:09.752Z", "quality": { "calls30d": 2, "uniquePayers30d": 2, "lastCalledAt": "2026-10-08T06:26:09.338Z" }, "metadata": { "serviceName": "presign-guard", "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791125199/bazaar-icons/dae343325dc2ef3d.png", "extensions": { "bazaar": { "info": { "input": { "method": "GET", "queryParams": { "address": "0x28c6c06298d514db089934071355e5743bf21d60", "chain": "ethereum" }, "type": "http" }, "output": { "example": { "approvals": [ { "amount": "unlimited", "approvedAt": "2025-03-01T10:00:00.000Z", "codes": [ { "code": "UNLIMITED_APPROVAL", "severity": "orange" } ], "revoke": true, "severity": "orange", "spender": { "address": "0x1111111254eeb25477b68fb85ed929f73a960582", "contract": true, "name": "AggregationRouterV5", "trusted": false }, "token": { "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913", "name": "USD Coin", "symbol": "USDC" }, "unlimited": true } ], "grade": "CAUTION", "one_liner": "CAUTION: 3 approvals, 1 unlimited; revoke 1", "reasons": [ { "code": "UNLIMITED_APPROVAL", "details": { "count": 1, "spenders": [ "0x1111111254eeb25477b68fb85ed929f73a960582" ] }, "severity": "orange" }, { "code": "STALE_APPROVAL", "details": { "count": 2, "spenders": [ "0x000000000022d473030f116ddee9f6b43ac78ba3" ] }, "severity": "info" } ], "revokeUrl": "https://revoke.cash/address/0x...?chainId=8453", "summary": { "approvals": 3, "toRevoke": 1, "tokens": 2, "unlimited": 1 }, "verdict": "orange" }, "type": "json" } }, "schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "input": { "additionalProperties": false, "properties": { "method": { "enum": [ "GET" ], "type": "string" }, "queryParams": { "properties": { "address": { "description": "Wallet address (0x...)", "type": "string" }, "chain": { "description": "EVM chain to audit", "enum": [ "base", "ethereum", "arbitrum", "optimism", "polygon", "bsc" ], "type": "string" } }, "required": [ "chain", "address" ], "type": "object" }, "type": { "const": "http", "type": "string" } }, "required": [ "type", "method" ], "type": "object" }, "output": { "properties": { "example": { "properties": { "approvals": { "description": "Per allowance: token, spender (address, name, trusted, contract), amount, approvedAt, severity, codes, revoke", "items": { "type": "object" }, "type": "array" }, "checkedAt": { "type": "string" }, "grade": { "enum": [ "SAFE", "CAUTION", "RISKY", "AVOID" ], "type": "string" }, "one_liner": { "type": "string" }, "reasons": { "items": { "properties": { "code": { "type": "string" }, "details": {}, "severity": { "enum": [ "red", "orange", "info" ], "type": "string" } }, "required": [ "code", "severity" ], "type": "object" }, "type": "array" }, "receipt": { "description": "Signature over this whole answer (without receipt.signature), so the verdict can be verified later: EIP-191 personal_sign over canonical JSON (sorted keys, compact, ASCII-escaped). Signer addresses: /.well-known/presign-guard-signer.json; free check: POST /v1/verify.", "properties": { "algorithm": { "enum": [ "eip191-canonical-json-v1" ], "type": "string" }, "cert": { "description": "The payout wallet's certificate for this signing key: personal_sign by authority over 'fizzl receipt signer\\nservice: \\nsigner: \\nvalid_from: '. Pin the payout wallet and a rotated key still verifies.", "properties": { "authority": { "type": "string" }, "service": { "type": "string" }, "signature": { "type": "string" }, "signer": { "type": "string" }, "valid_from": { "type": "string" } }, "type": "object" }, "input_sha256": { "description": "sha256 of canonical JSON {route, input}: your body (POST) or query parameters (GET)", "type": "string" }, "payment": { "description": "The payment behind this answer, from your x402 payment payload. EVM: payer + EIP-3009 nonce; find the settlement as AuthorizationUsed(payer, nonce) on the asset contract. Solana: payer + sha256 of the signed transaction you sent.", "properties": { "amount": { "type": "string" }, "asset": { "type": "string" }, "network": { "type": "string" }, "nonce": { "type": "string" }, "pay_to": { "type": "string" }, "payer": { "type": "string" }, "proof": { "enum": [ "eip3009", "svm-transaction" ], "type": "string" }, "transaction_sha256": { "type": "string" } }, "type": "object" }, "request_id": { "type": "string" }, "route": { "type": "string" }, "signature": { "type": "string" }, "signed_at": { "type": "string" }, "signer": { "type": "string" } }, "required": [ "request_id", "route", "input_sha256", "signed_at", "signer", "algorithm", "signature" ], "type": "object" }, "revokeUrl": { "type": "string" }, "summary": { "description": "approvals, tokens, unlimited, toRevoke", "type": "object" }, "verdict": { "enum": [ "green", "orange", "red" ], "type": "string" } }, "required": [ "verdict", "grade", "one_liner", "reasons", "approvals" ], "type": "object" }, "type": { "type": "string" } }, "required": [ "type" ], "type": "object" } }, "required": [ "input" ], "type": "object" } } } }, "liveness": { "reliability": null }, "verified": false, "featured": false, "provider": { "host": "presign-guard.fizzl.eu", "manifest_name": "presign-guard.fizzl.eu", "source": "cdp-mirror", "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources", "submitted_at": "2026-10-13T15:56:53.641Z" }, "exampleResponse": { "example": { "approvals": [ {} ], "checkedAt": "string", "grade": "SAFE", "one_liner": "string", "reasons": [ { "code": "string", "details": null, "severity": "red" } ], "receipt": { "algorithm": "eip191-canonical-json-v1", "cert": { "authority": "string", "service": "string", "signature": "string", "signer": "string", "valid_from": "string" }, "input_sha256": "string", "payment": { "amount": "string", "asset": "string", "network": "string", "nonce": "string", "pay_to": "string", "payer": "string", "proof": "eip3009", "transaction_sha256": "string" }, "request_id": "string", "route": "string", "signature": "string", "signed_at": "string", "signer": "string" }, "revokeUrl": "string", "summary": {}, "verdict": "green" }, "type": "string" } }