API Tools

feeless402.com

Provides tools to fetch x402 payment quotes, compare payer costs across multiple payment rails, check the Feeless402 starter faucet status, and get setup instructions for a self-custodied payment toolset.

x402 supported1 endpoint4 known toolsFirst detected August 3, 2026Last detected September 16, 2026

ENDPOINT 1

https://feeless402.com/mcp

No auth detected

MCP server metadata

Name: feeless402-demo

Capabilities

experimentalpromptsresourcestools

Server instructions

Read-only demo of the Feeless402 rail: price any x402 (HTTP 402 Payment Required) API across payment rails and see what the same call costs on each — gas rails floor micro-prices; the feeless Nano rail quotes the true metered amount. This remote endpoint holds no wallet and cannot pay. To actually pay, earn, or claim starter funds, run the local server (self-custodied seed, never leaves your machine): pip install feeless402 -> nano-pay mcp

Known tools 4

x402_quote

Fetch an x402 endpoint's payment quote WITHOUT paying: price in XNO, destination, and the full offer menu across all rails.

Potential side effects

x402_compare

Price the same API call on EVERY rail the server offers (Base/Solana USDC, Lightning, XNO...) from live data — the payer-cost arithmetic agents use to pick a rail.

Inferred read-only

faucet_info

Live status of the Feeless402 starter faucet: address, per-claim amount, remaining balance, and how an agent claims.

Inferred read-only

get_started

How to get the full self-custodied Feeless402 toolset (pay, earn, claim) running locally in under a minute.

Potential side effects

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.feeless402-demo]
url = "https://feeless402.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "feeless402-demo": {
      "type": "http",
      "url": "https://feeless402.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: feeless402-demo
Remote MCP URL: https://feeless402.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "feeless402-demo": {
      "url": "https://feeless402.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "feeless402-demo": {
      "type": "http",
      "url": "https://feeless402.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "feeless402-demo",
  "transport": "streamable-http",
  "url": "https://feeless402.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.