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Inspect and validate an x402 endpoint before an autonomous agent spends USDC.
MCP endpoint :https://x402.chikocorp.com/mcp · website · measurements and detailsPaid email, DNS, mail-security and RDAP intelligence for agents over x402.
MCP endpoint :https://email-dns-preflight-x402.copper-crate.workers.dev/mcp · website · measurements and detailsDeterministic pre-execution verification tools for AI agents with x402 USDC pay-per-call on Base
MCP endpoint :https://preflight-checks--jd-robles.run.tools · website · measurements and detailsEmail preflight x402: $0.001 USDC on Base. MCP returns unpaid 402 only; no signing or payment.
MCP endpoint :https://email-preflight-mcp.onrender.com/mcp · measurements and detailsSafe Solana swaps for AI agents with risk checks, unsigned transactions, x402, and 3-bp fees.
MCP endpoint :https://preflight-agent.netlify.app/mcp · website · measurements and detailsPreflight x402 payment compatibility with structured risk evidence and remediation guidance.
MCP endpoint :https://intelligence.inversolabs.us/mcp · measurements and detailsHumanMirror x402 MCP: paid Safe Preflight, execution evidence and machine microtools on Base/USDC.
MCP endpoint :https://humanmirror.fr/api/x402/mcp/ · website · measurements and detailsIs this x402/MPP API safe to pay? $0.001 go/no-go preflight, diagnosis and fixes. Free quick check.
MCP endpoint :https://x402-doctor.fizzl.eu/mcp · website · measurements and detailsSolana transaction diagnosis, simulation, token-risk evidence, and priority fees via x402 USDC.
MCP endpoint :https://api.utilia.ink/mcp · website · measurements and detailsSolana pre-trade safety for agents: rug check, honeypot sell-sim, drainer scan, tx preflight.
MCP endpoint :https://solidus-mcp.fly.dev/mcp · measurements and detailsPolymarket preflight verdicts: OK/CAUTION/VETO on orders, COPY/WATCH/VETO on wallets. x402-paid.
MCP endpoint :https://ticktape.cc/mcp · website · measurements and detailsHosted x402 preflight for action authority, payment mandate, destination, expiry and replay.
MCP endpoint :https://foxify.pro/mcp · measurements and detailsSecurity intelligence for AI agents. 27 x402 endpoints: honeypot, forensics, CAPTCHA, preflight.
MCP endpoint :https://economic-agent-369.freysa.dev/mcp · measurements and detailsAgent-work MCP: free context preflight and page-read previews, paid x402 HTTP upgrades.
MCP endpoint :https://agent-context-api-proxy.agent-context-proxy.workers.dev/mcp · website · measurements and detailsVerify before you act: deps-check, x402-preflight, json-repair & url-read for agents.
MCP endpoint :https://guard.fabtally.com/mcp · website · measurements and detailsx402 gate network for agents to discover gates, inspect definitions, and fetch preflight data.
MCP endpoint :https://gate-network.matsutake-lab.workers.dev/mcp · measurements and detailsCross-border preflight, x402 quote and evidence receipts for A2A/MCP agent workflows.
MCP endpoint :https://tooloracle.io/mcp/nomos · website · measurements and detailsPreflight, approve, and prove consequential agent actions with signed evidence and x402 tools.
MCP endpoint :https://mcp.hermesplant.com/mcp · website · measurements and detailsSolana Jupiter quotes and package preflight for AI agents. Free sample. Paid x402 on Solana USDC.
MCP endpoint :https://lobby-laptop-shame-achieved.trycloudflare.com/mcp · measurements and detailsEvidence-backed npm upgrade preflight and dependency audits for coding agents, paid via x402.
Package npm :safe-upgrade-mcp · website · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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