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Metered MCP tools: free discovery over MCP; per-call execution settled in USDC via x402 v2.
MCP endpoint :https://paid-mcp-metering-clsiojdd7-benlafreniere6-3913s-projects.vercel.app/mcp · website · measurements and detailsMCP server for Thorlabs optical power meters (PM100 family, PM400, PM101, PM5020) over SCPI.
Package pypi :labmcp-thorlabs-pm · website · measurements and detailsPremium agentic endpoint for active-seat-metering-mcp.
MCP endpoint :https://api.m2mcent.com/active-seat-metering-mcp/sse · measurements and detailsLocal-first dashboard + MCP for Claude Code and Codex token usage. Per-MCP/tool breakdown.
Package npm :@whdrnr2583/token-meter · website · measurements and detailsQuery and manage Amberflo metering & billing: customers, meters, usage, plans, invoices, prepaid.
MCP endpoint :https://amberflo.usefulapi.io/mcp · website · measurements and detailsChains to meters, number discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/chain-m/mcp · website · measurements and detailsRead your organization usage records. No payments or transfers. Customer API key required.
MCP endpoint :https://api.klisten.co.kr/mcp/metermcp · website · measurements and detailsCables to meters, number discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/cable-m/mcp · website · measurements and detailsCompute explicit durations. No reminders or legal guarantees. Customer key required.
MCP endpoint :https://api.klisten.co.kr/mcp/deadlineengine · website · measurements and detailsRead public model catalog metadata with freshness timestamps. No model execution or payments.
MCP endpoint :https://api.klisten.co.kr/mcp · website · measurements and detailsToolGuard paid gate decisions and attestation lookup. Customer API key required. Limited beta.
MCP endpoint :https://api.klisten.co.kr/mcp/toolguard · website · measurements and detailsCheck proposed actions against existing policies. Never executes actions. Customer key required.
MCP endpoint :https://api.klisten.co.kr/mcp/actioncheck · website · measurements and detailsRead unfunded contract drafts. No deposits, payouts or settlement. Customer key required.
MCP endpoint :https://api.klisten.co.kr/mcp/agentescrow · website · measurements and detailsCheck existing content grants and expiry. No content fetching. Customer key required.
MCP endpoint :https://api.klisten.co.kr/mcp/cleargate · website · measurements and detailsFathoms to meters
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/fathom-to-m/mcp · website · measurements and detailsRead private agent activity, not identity or reputation scores. Customer key required.
MCP endpoint :https://api.klisten.co.kr/mcp/agentscore · website · measurements and detailsFeet to meters
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/ft-to-m/mcp · website · measurements and detailsAcres to square meters
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/acre-to-m2/mcp · website · measurements and detailsPersist failure simulations. No external fault injection or transfers. Customer key required.
MCP endpoint :https://api.klisten.co.kr/mcp/failbox · website · measurements and detailsMeters to feet
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/m-to-ft/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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