Preflight a Base USDC payment before an AI agent signs it
Preflight a Base USDC payment before an AI agent signs it. Check live funding and gas, confirm Base chain intent, classify the destination as an EOA or contract, catch zero-address, token-contract, and self-payment hazards, and receive a machine-readable proceed, fund, review, or reject decision. No account or API key.
20000 (raw units)
price
4
calls / 30d
3
unique payers
2026-08-30
updated
Provider
anywaypossible.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xe5690D37805107C56f6195E65A262b234E0E5e75",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "20000",
"maxTimeoutSeconds": 60
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"address": "0x1111111111111111111111111111111111111111",
"destinationAddress": "0x2222222222222222222222222222222222222222",
"expectedChainId": 8453,
"minGasReserveEth": "0.00005",
"plannedSpendUsdc": "1.00"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"address": "0x1111111111111111111111111111111111111111",
"alerts": [
"USDC balance is below the planned spend.",
"ETH balance is below the requested gas reserve."
],
"blockNumber": 12345678,
"chainId": 8453,
"checks": [
{
"id": "network",
"message": "Base mainnet confirmed.",
"status": "pass"
}
],
"decision": "needs_funding",
"destinationAddress": "0x2222222222222222222222222222222222222222",
"destinationKind": "eoa",
"eth": "0",
"gasShortfallEth": "0.00005",
"limitations": [
"Onchain state and basic destination hazards only; recipient identity and contract behavior are not guaranteed."
],
"minGasReserveEth": "0.00005",
"network": "Base",
"observedAt": "2026-01-01T00:00:00.000Z",
"paymentCapacity": {
"at0_001": "0",
"at0_01": "0",
"at0_05": "0",
"at0_10": "0"
},
"plannedSpendUsdc": "1",
"ready": false,
"recommendedAction": "Fund the wallet with at least 1 USDC and 0.00005 ETH before paying.",
"riskLevel": "medium",
"safeToProceed": false,
"status": "needs_funding",
"usdc": "0",
"usdcShortfall": "1"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"address": {
"description": "EVM wallet address on Base",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"destinationAddress": {
"description": "Optional intended payment recipient on Base; enables destination hazard checks",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"expectedChainId": {
"description": "Expected destination chain. This service only approves Base mainnet (8453).",
"enum": [
8453
],
"type": "integer"
},
"minGasReserveEth": {
"description": "Minimum ETH gas reserve; defaults to 0.00005",
"pattern": "^[0-9]+(\\.[0-9]{1,18})?$",
"type": "string"
},
"plannedSpendUsdc": {
"description": "USDC amount the agent plans to spend; defaults to 1.00",
"pattern": "^[0-9]+(\\.[0-9]{1,6})?$",
"type": "string"
}
},
"required": [
"address"
],
"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": {
"properties": {
"address": {
"type": "string"
},
"alerts": {
"items": {
"type": "string"
},
"type": "array"
},
"blockNumber": {
"type": "integer"
},
"chainId": {
"type": "integer"
},
"checks": {
"items": {
"type": "object"
},
"type": "array"
},
"decision": {
"enum": [
"safe_to_pay",
"needs_funding",
"needs_gas",
"review_destination",
"reject"
],
"type": "string"
},
"destinationAddress": {
"type": [
"string",
"null"
]
},
"destinationKind": {
"enum": [
"not_provided",
"eoa",
"contract"
],
"type": "string"
},
"eth": {
"type": "string"
},
"gasShortfallEth": {
"type": "string"
},
"limitations": {
"items": {
"type": "string"
},
"type": "array"
},
"minGasReserveEth": {
"type": "string"
},
"network": {
"type": "string"
},
"observedAt": {
"format": "date-time",
"type": "string"
},
"paymentCapacity": {
"type": "object"
},
"plannedSpendUsdc": {
"type": "string"
},
"ready": {
"type": "boolean"
},
"recommendedAction": {
"type": "string"
},
"riskLevel": {
"enum": [
"low",
"medium",
"high"
],
"type": "string"
},
"safeToProceed": {
"type": "boolean"
},
"status": {
"enum": [
"ready",
"needs_usdc",
"needs_gas",
"needs_funding"
],
"type": "string"
},
"usdc": {
"type": "string"
},
"usdcShortfall": {
"type": "string"
}
},
"required": [
"address",
"destinationAddress",
"destinationKind",
"network",
"chainId",
"status",
"ready",
"safeToProceed",
"decision",
"riskLevel",
"recommendedAction",
"eth",
"usdc",
"plannedSpendUsdc",
"minGasReserveEth",
"usdcShortfall",
"gasShortfallEth",
"paymentCapacity",
"checks",
"alerts",
"limitations",
"blockNumber",
"observedAt"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"builder-code": {
"info": {
"a": "anyway_possible",
"s": [
"cdp_sdk_server"
]
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"maxItems": 11,
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
},
"eip2612GasSponsoring": {},
"erc20ApprovalGasSponsoring": {}
}Use it
curl
curl "https://anywaypossible.com/api/treasury" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://anywaypossible.com/api/treasury");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://anywaypossible.com/api/treasury")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/4533.json, and this resource appears in /discovery/resources and /discovery/search.