# anywaypossible.com Base USDC Payment Preflight

> anywaypossible.com Base USDC Payment Preflight is a paid API for AI agents from anywaypossible.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Validates a planned Base USDC payment before signing, checking wallet funding, gas reserves, chain ID, and destination address hazards to return a machine-readable proceed/fund/review/reject decision.

## Facts

- Endpoint: POST https://anywaypossible.com/api/treasury
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/anywaypossible-com-base-usdc-payment-preflight-60df2b25
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_I_JxHIIOjP7M-nfS0dYKS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability anywaypossible-com-base-usdc-payment-preflight-60df2b25 -d '<json body>'
```

Example prompt: Before I sign this payment, preflight my Base wallet 0xABC...123 to confirm I have enough USDC to send 50 USDC to 0xDEF...456 and that I have at least 0.00005 ETH for gas — tell me if it's safe to proceed or what's blocking it.

## When to prefer this

Choose this endpoint when an AI agent needs to gate a Base USDC payment with a structured risk assessment before signing — especially when the destination is unknown, balances may be insufficient, or the agent must produce a machine-readable proceed/reject signal for downstream automation. Prefer this over raw balance checks when you need destination hazard classification (EOA vs contract, zero-address detection, self-payment detection) combined with gas and funding validation in a single call. No API key or account required, making it ideal for lightweight agent pipelines.

## Known failure modes

- Invalid EVM address format returns a 422 validation error
- Unsupported chain ID (non-Base) triggers a reject decision
- Destination address identified as zero address returns reject with hazard alert
- Wallet with zero balances returns needs_funding decision with shortfall amounts
- Network congestion or RPC unavailability may cause delayed or failed balance lookups
- Malformed plannedSpendUsdc or minGasReserveEth pattern returns schema validation error

## How this service works

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.

## Output

Returns a structured JSON object with a machine-readable decision (safe_to_pay, needs_funding, needs_gas, review_destination, or reject), risk level, readiness boolean, wallet ETH and USDC balances, USDC and gas shortfalls, destination address classification (EOA or contract), a list of named safety checks with pass/fail status, alert strings describing any detected hazards, recommended action, block number, and observation timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "pattern": "^0x[a-fA-F0-9]{40}$",
       "description": "EVM wallet address on Base"
      },
      "expectedChainId": {
       "enum": [
        8453
       ],
       "type": "integer",
       "description": "Expected destination chain. This service only approves Base mainnet (8453)."
      },
      "minGasReserveEth": {
       "type": "string",
       "pattern": "^[0-9]+(\\.[0-9]{1,18})?$",
       "description": "Minimum ETH gas reserve; defaults to 0.00005"
      },
      "plannedSpendUsdc": {
       "type": "string",
       "pattern": "^[0-9]+(\\.[0-9]{1,6})?$",
       "description": "USDC amount the agent plans to spend; defaults to 1.00"
      },
      "destinationAddress": {
       "type": "string",
       "pattern": "^0x[a-fA-F0-9]{40}$",
       "description": "Optional intended payment recipient on Base; enables destination hazard checks"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "receiptId",
      "address",
      "destinationAddress",
      "destinationKind",
      "network",
      "chainId",
      "status",
      "ready",
      "safeToProceed",
      "decision",
      "riskLevel",
      "recommendedAction",
      "eth",
      "usdc",
      "plannedSpendUsdc",
      "minGasReserveEth",
      "usdcShortfall",
      "gasShortfallEth",
      "paymentCapacity",
      "checks",
      "alerts",
      "limitations",
      "blockNumber",
      "observedAt"
     ],
     "properties": {
      "eth": {
       "type": "string"
      },
      "usdc": {
       "type": "string"
      },
      "ready": {
       "type": "boolean"
      },
      "alerts": {
       "type": "array",
       "it
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/anywaypossible-com-base-usdc-payment-preflight-60df2b25/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from anywaypossible.com](https://www.zero.xyz/host/anywaypossible.com/llms.txt)