x4PayAPI Market

DDG Agent Checkout Conformance Audit

Pre-purchase audit of an agent-facing checkout flow: 402 challenge shape, payTo/asset correctness, extra.name, and receipt verifiability. POST with input JSON. $0.02 USDC per call on Base.

1 route settlement-verified · $0.01 USDC/request · 1 endpoint / 1 tools · Tools · base network · x402 protocol

Verified routes

Other routes are unverified.

Networks: Base (settlement-verified)

Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.

url https://payapi.market/mcp

Listing facts

Provider
Daedalus Development Group (DDG)
Hosted at
agents.daedalusdevelopmentgroup.com
Category
Tools
Price
$0.01 USDC per request
Endpoints
1
MCP tools
1
Payment networks
Base
Settlement-verified
1 route, last checked 2026-09-21
Listed on PayAPI Market
2026-09-21

Try DDG Agent Checkout Conformance Audit

Call a verified route without paying first. The server should answer HTTP 402 Payment Required with the price, the USDC asset, the network and the wallet to pay. An x402 client pays that amount on Base and retries with the payment header.

curl -i -X POST "https://agents.daedalusdevelopmentgroup.com/v1/tx-smoke-test"

About this API

DDG Agent Checkout Conformance Audit is listed in the Tools category with pricing at $0.01 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-09-21. View receipt on Basescan.

Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.

This API exposes 1 endpoint.

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Settlement-verified on PayAPI Market

Markdown

[![Settlement-verified on PayAPI Market](https://payapi.market/badge/ddg-agent-checkout-conformance-audit.svg)](https://payapi.market/api/ddg-agent-checkout-conformance-audit)

HTML

<a href="https://payapi.market/api/ddg-agent-checkout-conformance-audit"><img src="https://payapi.market/badge/ddg-agent-checkout-conformance-audit.svg" alt="Settlement-verified on PayAPI Market" height="20"></a>

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Questions about this API

What does DDG Agent Checkout Conformance Audit do?

Pre-purchase audit of an agent-facing checkout flow: 402 challenge shape, payTo/asset correctness, extra.name, and receipt verifiability. POST with input JSON. $0.02 USDC per call on Base. It is provided by Daedalus Development Group (DDG).

How much does DDG Agent Checkout Conformance Audit cost?

DDG Agent Checkout Conformance Audit is priced at $0.01 USDC per request, paid per call with no subscription. Verified with a $0.01 test payment on 21 Sep 2026. The exact amount for each call is in the HTTP 402 response before any money moves.

Do I need an API key or account to use DDG Agent Checkout Conformance Audit?

No. DDG Agent Checkout Conformance Audit uses the x402 protocol, so an agent pays per request in USDC on Base and gets the response, with no API key, account or signup.

Has DDG Agent Checkout Conformance Audit been verified?

Yes, 1 route. PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC settlement on-chain, most recently on 2026-09-21.

How does an AI agent find DDG Agent Checkout Conformance Audit?

Through the free PayAPI Market MCP server at https://payapi.market/mcp, using search_apis or get_api, or over plain HTTP at https://payapi.market/agent/search. Discovery is free; the agent pays the provider directly on the listing's own 402.

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By Daedalus Development Group (DDG)