Preflight

Import Preflight x402 REST usage

Validate a Shopify product CSV before import and detect structural and Shopify-specific import problems. Also supports generic CSV structural validation.

import-preflight-development.import-preflight-4618bf7e.workers.dev Business & Growth 2 calls / 30d checked 2026-11-02

no price published

Forest Gas Station x402 REST usage

Check whether an isolated cart can reach checkout and expose blockers without payment. It never logs in, creates an order or finalizes checkout.

http--forest-gas-station--lcjl27p8lmjs.code.run Crypto & Payments 1 calls / 30d checked 2026-10-28

no price published

x402 Preflight x402 REST usage

Payability preflight: audits an x402 seller's 402 challenge

x402.nodeventures.io Crypto & Payments 2 calls / 30d checked 2026-11-02

no price published

Token preflight x402 REST

Token risk preflight / token safety check for Base or Ethereum tokens: contract shape, EIP-1967 proxy, owner/renounce, ERC-20 metadata and supply, mint/blacklist selector heuristics, Uniswap V2+V3 liquidity and a determi...

scanpay-edge.alextaghiashvili.workers.dev Crypto & Payments checked 2026-11-02

0.005 USDC per call per call

AgentResolver Guard x402 REST

Validate x402 payment requirements before wallet signing. Check live payTo, quoted USDC amount, network, asset, exact scheme and resource binding; return fail-closed eligible/blocked evidence before caller authorization.

agentresolver.vercel.app Crypto & Payments checked 2026-10-29

0.001 USDC per call per call

SI SENTINEL PayGuard Preview x402 REST

Free discovery preview for SI SENTINEL PayGuard. Paid route checks a target x402 endpoint before an AI agent pays it and returns PAY, REVIEW or DO_NOT_PAY for $0.005.

ozeejewwpjmabshxyitc.supabase.co Crypto & Payments checked 2026-10-29

0 USDC per call per call

EVM Egress Preflight x402 REST

Decodes the real recipient or spender from EVM calldata - transfer, transferFrom, approve, increaseAllowance, permit, setApprovalForAll, Uniswap V2 swaps and Multicall3 - and checks it against your allowlist and epoch ca...

jogger-ageless-pronounce.ngrok-free.dev Crypto & Payments checked 2026-10-29

0.01 USDC per call per call

Northline ChainKit x402 MCP

Live block height, gas price and fee estimates (transfer, ERC-20 transfer, contract call) for Base or Arc. On Arc fees are quoted directly in USDC.

northline-chainkit.northline-c86.workers.dev Crypto & Payments checked 2026-11-02

0.001 USDC per call per call

Spark Invocation Assurance x402 REST

Validate an intended paid API request against its declared contract before spending. Returns VALID, INVALID, or UNKNOWN with machine-readable reasons. Target URL is never called.

spark-api-preflight.replit.app Crypto & Payments checked 2026-10-29

0.001 USDC per call per call

TELAGO Execution Intelligence x402 REST

Cross-border corridor execution preflight for Thailand-Myanmar land and maritime routes plus the Kazakhstan-Azerbaijan-Georgia Middle Corridor.

ozeejewwpjmabshxyitc.supabase.co Geo & Maps checked 2026-10-29

0.005 USDC per call per call

Agent Change Radar x402 REST

Cheap recurring change detector for autonomous agents. Compare before/after manifests, configs or tool contracts; get PASS, REVIEW or ESCALATE plus exact changed paths and the next deeper audit to call.

tutevpsjeewjulryvvdo.supabase.co Security checked 2026-11-02

0.001 USDC per call per call

Bounty Engineer x402 REST

Scan untrusted tool or web responses for prompt-injection and credential/payment exfiltration patterns; return findings plus sanitized content.

bounty-engineer-x402-prod.onrender.com AI Models & Inference checked 2026-10-29

0.01 USDC per call per call

Open Horizon Machine Revenue x402 REST

Micropayment one-page preflight for agents: HTTP/SEO/security evidence with BUY/REVIEW/SKIP verdict before deeper due diligence.

ohd-machine-x402-v2.hibiki3027.workers.dev Crypto & Payments checked 2026-10-29

0.05 USDC per call per call

preflight x402 REST checked

A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor (/v1/x402-audit) — Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers. (https://preflight.agentdie...

preflight.agentdiet.dev Crypto & Payments checked 2026-10-28

0 USDC per call per call checked

endpoint-preflight x402 REST

Preflight trust check of another x402 endpoint before an agent pays it. From the target resource URL: a composite trust score 0-100, a category (trusted / caution / untrusted / unknown), per-dimension flags, reasons and...

payai.agentstools.dev Crypto & Payments checked 2026-10-29

0.005 USDC per call per call

a11y-preflight x402 REST

Static accessibility (WCAG 2.2) check of a UI markup fragment for JSX, TSX, Vue, Angular or HTML. Detects missing image alt, unlabeled form controls, buttons and links with no accessible name, skipped heading levels, inv...

payai.agentstools.dev Geo & Maps checked 2026-10-29

0.02 USDC per call per call

dbmigrate-check x402 REST

Safety preflight for a database schema migration BEFORE you apply it. Send the migration SQL for Postgres or MySQL and get a pass, caution or block verdict with per-finding operation, severity, plain-language reason and...

payai.agentstools.dev Databases & Storage checked 2026-10-29

0.02 USDC per call per call

sqlscan-check x402 REST

Safety and performance preflight for a database query BEFORE you run it. Send the query for Postgres, MySQL or SQLite and get a pass, caution or block verdict with per-finding operation, severity, plain-language reason a...

payai.agentstools.dev Databases & Storage checked 2026-10-29

0.02 USDC per call per call