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Read-only machine payment preflight using dated MEO evidence, with explicit unknowns.
MCP endpoint :https://api.machineeconomyobservatory.com/mcp · website · measurements and detailsSix paid URL-intelligence tools for autonomous agents and agent swarms.
MCP endpoint :https://preflight.lorensaisolutions.com/mcp · website · measurements and detailsBudgeted agent preflight: allow|block|reuse|defer|advise. Never executes destination tools. Free MCP
MCP endpoint :https://api.agent-preflight.com/mcp · website · measurements and detailsPreflight MCP OAuth compatibility with structured evidence and remediation guidance.
MCP endpoint :https://auth.inversolabs.us/mcp · measurements and detailsPreflight checks for agent repository contributions, bounty work, and Base payments.
MCP endpoint :https://preflight.abacore.net/mcp · website · measurements and detailsDeterministic preflight for FactoryTalk View tag and alarm CSV imports before re-import.
MCP endpoint :https://factorytalk.regevidencehub.com/mcp · website · measurements and detailsCaller-specific static MCP capability fit evidence. No live probing; caller owns the decision.
MCP endpoint :https://exactlane.dev/mcp · website · measurements and detailsEvidence-backed UBL, PDF, and image invoice checks before approval or payment.
MCP endpoint :https://mcp.dropenginehq.com/api/invoice-mcp · website · measurements and detailsInspect and validate an x402 endpoint before an autonomous agent spends USDC.
MCP endpoint :https://x402.chikocorp.com/mcp · website · measurements and detailsRead-only EU import preflight: EORI, TARIC candidates, measures, low-value cost. Evidence only.
MCP endpoint :https://import.mcp.jithox.com/mcp · website · measurements and detailsDeterministic MCP, JSON Schema, and SemVer preflight via Agothe's public MUV scope.
MCP endpoint :https://mcp-chatgpt.agothe.ai/mcp · measurements and detailsRead-only EU energy-label preflight: supplier-declared EPREL records. Evidence, not advice.
MCP endpoint :https://energy.mcp.jithox.com/mcp · website · measurements and detailsCheck if your MCP server is ready to publish on the MCP Registry, Smithery, or npm.
MCP endpoint :https://skillfoundry.synaplex.ai/products/preflight/mcp/ · website · measurements and detailsRead-only EU sanctions preflight: screen names/IDs against EU list. Evidence, not a verdict.
MCP endpoint :https://sanctions.mcp.jithox.com/mcp · 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 detailsSigned exact-order pre-submit gate for crypto bots using live Coinbase and Gemini execution data.
MCP endpoint :https://butterflydelta.com/api/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 detailsPre-action compliance for AI agents: allow, block or hold. 24 statutes, 13 jurisdictions.
MCP endpoint :https://vitna.costrinity.xyz/api/mcp · website · measurements and detailsChoose HTTP, browser, machine endpoint, or avoid before an agent visits an unfamiliar URL.
MCP endpoint :https://preflight-api-production-01a2.up.railway.app/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 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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