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AveDaris Counterparty Preflight
x402
AveDaris Counterparty Preflight is a paid API for AI agents from api.avedaris.com, paid per call via x402, $0.025/call, status unknown (last checked 2026-10-29).
Pre-validates a prospective x402 micropayment transaction against budget ceilings, network support, and counterparty safety before committing funds.
Price / call$0.025
Success—
StatusUnknown
How this service works
Pre-payment economic and structural preflight for an external Base USDC counterparty: check endpoint reachability, payment terms, recipient format, caller budget, and economic ceiling before any external payment is made. $0.025 USDC per call on Base.
Output
Returns a JSON object containing a decision ('allow' or 'deny'), a confidence score (0-1), an array of evidence codes with pass/fail statuses (e.g. 'network_supported'), economic fit flags indicating whether the requested amount is within budget and economic ceiling, and advisory metadata confirming no payment was executed.
Example use cases
Budget gate before agent API call
“I'm about to call a paid AI service at https://api.someservice.com/v1/analyze that charges 0.03 USDC on Base — before I send the payment, can you preflight it and make sure it's within my $0.05 budget ceiling and that the network is supported?”
Economic rationality check for high-value task
“I'm considering paying 0.08 USDC to https://api.dataprovider.com/v1/lookup on Base network, and I estimate the outcome is worth about $0.50 to me — can you run a preflight to see if this spend makes economic sense against my $0.10 hard ceiling?”
Safety check before autonomous agent payment
“My agent is about to autonomously pay 0.025 USDC on Base to address 0xDEaD...bEeF at https://api.thirdparty.com/v1/result — before it executes anything, preflight that counterparty and tell me if it gets a pass with high confidence.”
Technical details
Endpoint
POSThttps://api.avedaris.com/v1/paid/counterparty-preflight?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to validate an x402-style micropayment on Base/USDC before committing funds — especially when operating autonomously with budget constraints. It is advisory-only (no funds move), making it a safe, zero-risk gate before payment execution. Prefer this over directly attempting payment when counterparty trust, network compatibility, or budget rationality is uncertain.
Side effects
- Invalid or unreachable seller endpoint URL returns a failed evidence code or error
- Unsupported network or asset (non-Base / non-USDC) results in a failed preflight decision
- maxSpendUsd set to zero or negative is rejected by schema validation
- Missing required paymentRequirement fields (amountUsd, network, asset, payTo) cause a 400-level error
- Requested amount exceeding maxSpendUsd results in economicFit.requestedWithinBudget = false and likely a deny decision
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| endpoint | string | Public HTTP(S) seller endpoint to preflight. |
| maxSpendUsd | number | Caller hard budget ceiling for this prospective purchase. |
| outcomeValueUsd | number | Optional caller-estimated value of a successful outcome. AUN does not infer this in v1. |
| paymentRequirement | object | The seller's quoted x402 payment requirement to check before paying, as amountUsd, network, asset and payTo. |
| maxEconomicallyRationalSpendUsd | number | Optional caller economic ceiling; defaults to maxSpendUsd. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"scope": "base_usdc_x402_preflight_v1",
"decision": "allow",
"evidence": [
{
"code": "network_supported",
"status": "pass"
}
],
"confidence": 0.93,
"economicFit": {
"requestedWithinBudget": true,
"requestedWithinEconomicCeiling": true
},
"advisoryOnly": true,
"paymentExecuted": false
}
}
}Tags
x402
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