MCP server

x402 Pay — USDC API Payment Helper

com.scriptmasterlabs/x402-pay

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Pay for APIs with USDC. Read-only x402 payment discovery, verification, evidence, and status.

Website Source

At a glance

Type

MCP server

Publisher

scriptmasterlabs.com (verified by the MCP Registry)

Status

Working at last check

Tools

5

Token cost

About 819 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http x402-pay https://squeezeos-api.onrender.com/mcp/x402-pay

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.x402-pay]
url = "https://squeezeos-api.onrender.com/mcp/x402-pay"

Gemini CLI

{"mcpServers":{"x402-pay":{"httpUrl":"https://squeezeos-api.onrender.com/mcp/x402-pay"}}}

Cursor

{"mcpServers":{"x402-pay":{"url":"https://squeezeos-api.onrender.com/mcp/x402-pay"}}}

VS Code

{"servers":{"x402-pay":{"type":"http","url":"https://squeezeos-api.onrender.com/mcp/x402-pay"}}}

Antigravity

agy mcp add x402-pay https://squeezeos-api.onrender.com/mcp/x402-pay

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"x402-pay","server_url":"https://squeezeos-api.onrender.com/mcp/x402-pay","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"x402-pay","server_url":"https://squeezeos-api.onrender.com/mcp/x402-pay"}

Tools

• check_payment ~241 tokens
  Inspect a public HTTPS URL for a fresh x402 v2 HTTP 402 challenge using an unsigned GET with a 10-second network timeout and no redirect following. Returns validated payTo, asset, network, atomic amount, resource and maxTimeoutSeconds; incomplete or non-x402 responses return challenge=null and a rea
• check_status ~110 tokens
  Read the current SqueezeOS backend status and payment-readiness evidence. Returns both upstream envelopes and autonomous_spend=false. Use to diagnose readiness before purchase; HTTP availability or readiness flags alone do not establish settled or accepted delivery.
• list_paid_apis ~155 tokens
  List paid API operations declared by the live SqueezeOS OpenAPI document, bounded by limit. Returns method, path, job and advertised price. Use for route selection, then inspect that resource's fresh 402 challenge; listed prices do not authorize payment.
• payment_info ~105 tokens
  Read the documented SML x402 v2 Base/USDC configuration and receiver before selecting a paid route. Returns configuration and a read-only policy. Fresh resource requirements override these hints; this tool does not sign, spend or prove settlement.
• x402_inspect_challenge ~208 tokens
  Inspect a fresh x402 v2 challenge without sending payment. Compatible alias of check_payment with the same schema, 10-second unsigned probe and result. Use before a paid resource call; do not use as a signer, receipt verifier or settlement proof. Non-402 and incomplete challenges remain null rather

Browse

• OpenAPI tools
• Payments
• APIs and testing

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