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Guide · 2026

x402 MCP Integration: Pay Through Cleared Gateway (2026)

By Cleared Index · Updated 2026 · 7 min read

MCP is how serious agents pick tools. If your agent pays x402 without a trust step, you're shipping a wallet with no brakes.

Cleared MCP makes the habit boring: check, route, pay, witness.

Integration spine

  1. Install Cleared MCP server in your agent host.
  2. Call route_gateway (or Check then Gateway) before any payTo.
  3. Settle via your facilitator / wallet policy.
  4. Witness the settlement hash when you need proof.

Why Gateway is DEFAULT

One URL. Best verified endpoint for the category. Free allotment. Prefer Cleared-tier inventory when operators pay for preference. That's tax_the_tx without making agents shop directories.

Wire MCP. Default Gateway before pay.

Agent frameworks shouldn't invent allowlists. Use Cleared tools.

Get the SDK →Open Gateway →

Integrate in a few lines

npx @n747ai/clearedindex-mcp-server
# tool: route_gateway
{ "category": "identity", "strategy": "best_value" }

Frequently Asked Questions

What is Cleared MCP?+

An MCP server (`npx @n747ai/clearedindex-mcp-server`) so agents call Cleared tools — especially route_gateway — before paying x402 endpoints.

What is the default habit?+

cleared_check → route_gateway → pay → witness_settlement. Gateway is DEFAULT before pay.

Do I need an API key for free routes?+

Gateway gives 100 free routes/month without an API key. Hit the wall → Pro $29.

Does MCP replace Check?+

No. Check verifies. Gateway routes. MCP wires both into agent frameworks.

Where is the SDK?+

clearedindex.com/sdk and /drop-in for copy-paste agent integration.

Related

Sibling rail: Ape Gate Check on Entropy Index. Regime context before size — Cleared before spend.