Audit one Base wallet's ERC-20 approvals against a curated list of major spender
Audit one Base wallet's ERC-20 approvals against a curated list of major spenders (Permit2, Uniswap, Aerodrome, aggregators): active approvals are listed and unlimited ones flagged high risk. Use this when an agent or its owner wants to know what a wallet has already authorized before it holds or moves funds. When the explorer cannot supply the held-token list, the token-dependent fields come back marked unknown rather than the call failing.
Answeringour last check, 2026-10-24
1 of 1checks answered this week
1593 msmedian answer time
$0.005listed price per call
$0.005price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://stall-row-production.up.railway.app/v1/allowance-audit
| Category | Code and developer |
|---|---|
| Provider host | stall-row-production.up.railway.app |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-24 | valid payment request | 402 | $0.005 | 1593 ms |
Example input (from the provider)
{
"body": {
"address": "0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"address": {
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"active_approvals": {
"items": {
"properties": {
"allowance": {
"type": [
"string",
"null"
]
},
"allowance_raw": {
"type": "string"
},
"risk": {
"type": "string"
},
"spender": {
"type": "string"
},
"spender_name": {
"type": "string"
},
"token_address": {
"type": [
"string",
"null"
]
},
"token_symbol": {
"type": [
"string",
"null"
]
},
"unlimited": {
"type": "boolean"
}
},
"required": [
"spender",
"spender_name",
"allowance_raw",
"unlimited",
"risk"
],
"type": "object"
},
"type": [
"array",
"string"
]
},
"address": {
"type": "string"
},
"allowance_checks_performed": {
"type": "integer"
},
"coverage_note": {
"type": "string"
},
"note": {
"type": "string"
},
"spender_coverage": {
"items": {
"type": "string"
},
"type": "array"
},
"spenders_checked": {
"type": "integer"
},
"summary": {
"type": "string"
},
"tokens_held_checked": {
"type": [
"integer",
"string"
]
},
"unlimited_approvals": {
"type": [
"integer",
"string"
]
}
},
"required": [
"address",
"tokens_held_checked",
"spenders_checked",
"active_approvals",
"unlimited_approvals",
"summary"
],
"type": "object"
},
"schema": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}