Agent Mercantile
Inspect one Base ERC-20 owner/token/spender allowance with same-block balance and token metadata plus factual exposure flags. No wallet access, signing, or transaction execution. Call when you need a same-block Base allowance-versus-balance snapshot for one owner/token/spender triple.
Offering
- Provider
- api.agentmercantile.com
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Blockchain And Crypto
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://api.agentmercantile.com/v1/allowance-exposure- MIME type
- Not provided
- First seen
- 2026-10-16T01:50:14.534Z
- Last seen
- Tags
- erc20-allowance, spender-allowance, token-approval, allowance-exposure, unlimited-approval
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"payTo": "0xdb7b2b54f80479826222749a2ea73a8acc306e1e"
}
]Observed health
- Status
- Healthy
- Latest latency
- 93 ms
- Average latency
- 254 ms
- HTTP status
- 200
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"owner": {
"description": "ERC-20 token owner address. 0x-prefixed 20-byte EVM address.",
"type": "string"
},
"spender": {
"description": "Spender address. 0x-prefixed 20-byte EVM address.",
"type": "string"
},
"token": {
"description": "ERC-20 token contract. 0x-prefixed 20-byte EVM address. Zero address is rejected.",
"type": "string"
}
},
"required": [
"owner",
"token",
"spender"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"owner": {
"description": "ERC-20 token owner address. 0x-prefixed 20-byte EVM address.",
"type": "string"
},
"spender": {
"description": "Spender address. 0x-prefixed 20-byte EVM address.",
"type": "string"
},
"token": {
"description": "ERC-20 token contract. 0x-prefixed 20-byte EVM address. Zero address is rejected.",
"type": "string"
}
},
"required": [
"owner",
"token",
"spender"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": true,
"properties": {
"allowance_adjusted": {
"type": [
"string",
"null"
]
},
"allowance_balance_exposure_adjusted": {
"type": [
"string",
"null"
]
},
"allowance_balance_exposure_raw": {
"type": [
"string",
"null"
]
},
"allowance_covers_current_balance": {
"type": "boolean"
},
"allowance_raw": {
"description": "uint256 as a decimal integer string",
"type": [
"string",
"null"
]
},
"balance_adjusted": {
"type": [
"string",
"null"
]
},
"balance_raw": {
"type": [
"string",
"null"
]
},
"block_number": {
"type": [
"string",
"null"
]
},
"effectively_unlimited": {
"type": "boolean"
},
"evidence": {
"properties": {
"block_number": {
"type": [
"string",
"null"
]
},
"same_block_reads": {
"type": "boolean"
},
"token_code_present": {
"type": [
"boolean",
"null"
]
}
},
"type": "object"
},
"limitations": {
"items": {
"type": "string"
},
"type": "array"
},
"machine": {
"enum": [
"VM02"
],
"type": "string"
},
"max_uint256_approval": {
"type": "boolean"
},
"methodology_version": {
"enum": [
"allowance-exposure-0.1.0"
],
"type": "string"
},
"network": {
"enum": [
"eip155:8453"
],
"type": "string"
},
"owner": {
"type": "string"
},
"spender": {
"type": "string"
},
"status": {
"enum": [
"OK",
"HOLD"
],
"type": "string"
},
"token": {
"type": "string"
},
"token_metadata": {
"properties": {
"decimals": {
"type": [
"integer",
"null"
]
},
"symbol": {
"type": [
"string",
"null"
]
}
},
"type": "object"
}
},
"required": [
"status",
"machine",
"methodology_version",
"network",
"block_number",
"owner",
"token",
"spender",
"token_metadata",
"allowance_raw",
"allowance_adjusted",
"balance_raw",
"balance_adjusted",
"allowance_balance_exposure_raw",
"allowance_balance_exposure_adjusted",
"allowance_covers_current_balance",
"max_uint256_approval",
"effectively_unlimited",
"evidence",
"limitations"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}