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100
MCP live MCP 2026-07-28 http

Feeless402

glenn-quinting/feeless402

Price any x402 (HTTP 402 Payment Required) API across payment rails and see what the same call costs on each — live, from the server's own quote. Gas rails floor micro-prices at ~$0.001; the feeless Nano (XNO) rail quotes the true metered amount, so sub-millicent calls cost sub-millicents. **Tools:** `x402_quote` · `x402_compare` · `faucet_info` · `get_started` This hosted endpoint is read-only and holds no wallet — nothing to steal, nothing to spend. For the full self-custodied experience (pay per call, earn as a merchant, claim free starter XNO from the faucet): pip install feeless402 claude mcp add feeless402 -- uvx feeless402 mcp Docs: [feeless402.com](https://feeless402.com) · Spec: [railhint.com](https://railhint.com) · Official MCP registry: `com.feeless402/nano-pay`

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
1290ms
last probe
Tools
4
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://feeless402.com/mcp
Score: 100/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
4 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
4 items in total; 3 or more earns these points.
pass Describes itself 10/10
793 characters; more than 30 earns these points.

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.

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.

faucet_info

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

get_started

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

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://feeless402.com/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "feeless402": {
      "url": "https://feeless402.com/mcp",
      "transport": "http"
    }
  }
}