SCVD General Store

SCVD General Store Preflight API

The Preflight API from SCVD General Store — 4 operation(s) for preflight.

GitHub OpenAPI

Operations 6

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

POST /api/preflight/batch Preflight up to ten x402 doors at once · Preflight several x402 doors in one call #
Ask an LLM
“Can I check several x402 endpoints' payment challenges in one call?”
“Does batching preflight probes save outbound requests?”
Tell an agent
Preflight these x402 URLs in one batch: {urls}.
Batch-check the payment challenge on {urls}.
GET /api/preflight/checks Read the preflight battery manifest · The battery manifest #
Ask an LLM
“Which stable check IDs make up each preflight battery?”
“Where is the dated changelog of the preflight checks?”
Tell an agent
Get the preflight battery manifest.
Show every preflight check ID and the ruleset digest.
GET /api/preflight/v1 Read the v1 preflight criteria · The preflight criteria, v1 #
Ask an LLM
“What does each v1 preflight check test and what falsifies it?”
“Where are the frozen v1 criteria a verdict cites?”
Tell an agent
Get the v1 preflight criteria.
Show me the published v1 battery checks.
POST /api/preflight/v1 Check an x402 endpoint's challenge shape with v1 · Check an x402 endpoint's payment challenge shape (v1) #
Ask an LLM
“Does my x402 endpoint return a parseable PAYMENT-REQUIRED header under the v1 battery?”
“Can I run the frozen v1 structural check for free?”
Tell an agent
Run the v1 preflight on {url}.
Check {url}'s 402 challenge shape against the frozen v1 battery.
GET /api/preflight/v2 Read the v2 preflight criteria · The preflight criteria, v2 #
Ask an LLM
“What extra checks does the v2 preflight battery add?”
“Where are the v2 criteria a current verdict cites?”
Tell an agent
Get the v2 preflight criteria.
Show me the published v2 battery checks.
POST /api/preflight/v2 Check an x402 endpoint's challenge shape with v2 · Check an x402 endpoint's payment challenge shape (v2) #
Ask an LLM
“Will my x402 endpoint pass the stricter v2 preflight, including Solana receivability?”
“Is the v2 preflight check free and rate limited?”
Tell an agent
Run the v2 preflight on {url}.
Check {url} against the current v2 battery.

Documentation

📖
Documentation
https://scvd.store/developers
📖
APIReference
https://scvd.store/openapi.json
📖
GettingStarted
https://scvd.store/agents.md

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/scvd-store/refs/heads/main/openapi/scvd-store-preflight-api-openapi.yml

Other Resources

🔗
APICatalog
https://raw.githubusercontent.com/api-evangelist/scvd-store/refs/heads/main/well-known/scvd-store-api-catalog.json
🔗
APICatalog
https://scvd.store/.well-known/api-catalog

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OpenAPI Specification

scvd-store-preflight-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: SCVD General Store Preflight API
  version: 0.3.0
  description: 'scvd.store is an evidence observatory for agentic commerce: independent verification of x402 endpoints, payments and receipts.'
  contact:
    url: https://scvd.store
    email: sean@recordcreativeco.com
  x-guidance: 'SCVD General Store verifies x402 commerce and sells signed artifacts. Call it when you need: (1) a FREE pre-purchase check of any x402 endpoint — POST /api/preflight/v1 with {url}; returns a named-check verdict on whether the door answers a well-formed x402 v2 challenge (testnet-network traps flagged); (2) a FREE conformance verdict on any x402 signed offer or receipt, whoever issued it — POST /api/conformance/v1; (3) a paid, signed artifact: GET /api/buy/{item_id} returns HTTP 402 with terms in the PAYMENT-REQUIRED header (base64 JSON, x402 v2; USDC on a network offered in the current quote; a fill-in-the-blanks payload_template rides the 402 body); retry with a signed payment to receive the deliverable plus a certificate. Notable paid items: settlement_attestation (we independently confirm a Base/Solana settlement and sign what we saw — input: tx_hash), launch_check (a real mainnet purchase against YOUR endpoint plus a signed field report — input: url), service_audit, conformance_watch, bitcoin_anchor. Inputs are query parameters, declared per item in /menu.json; outputs are JSON with a certificate id. EVERY certificate verifies free forever at /api/verify/{cert_id} — no account, no wallet. Starting prices run $0.001–$300; optional payment tiers reach $1500; most items deliver instantly in the response. Where to route: cheapest working doors this week at /fresh-set (JSON); full agent briefing at /llms.txt. Before you start: free instruments need only plain HTTPS (no account, key or SDK); a purchase needs an x402 v2 client and a wallet holding USDC on Base (eip155:8453), Polygon (eip155:137), Arbitrum (eip155:42161), World (eip155:480), Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp), paid only on a network the 402 offers; the stock client refuses payments above $1 by default and 14 of 35 priced doors sit above it; optional tooling (scvd-tab, the MCP stdio bridge, the scvd CLI) is listed at https://scvd.store/agents.md and none of it is required.'
servers:
- url: https://scvd.store
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/scvd-store/refs/heads/main/openapi/scvd-store-preflight-api-openapi.yml