x402 Universal Payer

Pay any x402 endpoint on the open web: auto-paying bridge with Bazaar discovery and spend caps.

io.github.nirholas/x402-bridge · Repository · Website · version 1.0.1 · 95 stars · listed from registry

Install

The sweep installs into a clean prefix, but this is the command a user would run:

npx @three-ws/mcp-bridge

Results by platform

Linux

MCP handshake failed2026-08-16 · probed over npm

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
--- stderr (tail) ---
[3d-agent-x402-bridge] fatal: Error: No payment signers configured. Set MCP_BRIDGE_EVM_PRIVATE_KEY and/or MCP_BRIDGE_SVM_PRIVATE_KEY before starting the bridge.
    at buildBuyerAxios (file:///tmp/does-it-install/dii-npm-Qchp2S/node_modules/@three-ws/mcp-bridge/src/x402-axios-client.js:168:9)
    at async main (file:///tmp/does-it-install/dii-npm-Qchp2S/node_modules/@three-ws/mcp-bridge/src/index.js:234:15)

macOS

MCP handshake failed2026-08-16 · probed over npm

1 recorded run, oldest first.

handshake failed: MCP error -32000: Connection closed
--- stderr (tail) ---
[3d-agent-x402-bridge] fatal: Error: No payment signers configured. Set MCP_BRIDGE_EVM_PRIVATE_KEY and/or MCP_BRIDGE_SVM_PRIVATE_KEY before starting the bridge.
    at buildBuyerAxios (file:///private/var/folders/df/djsxfhc17x95674wsm_g8s980000gn/T/does-it-install/dii-npm-Hfz4HH/node_modules/@three-ws/mcp-bridge/src/x402-axios-client.js:168:9)
    at async main (file:///private/var/folders/df/djsxfhc17x95674wsm_g8s980000gn/T/does-it-install/dii-npm-Hfz4HH/node_modules/@three-ws/mcp-bridge/src/index.js:234:15)

Windows

timed out2026-08-16 · probed over npm

1 recorded run, oldest first.

npm install @three-ws/[email protected] timed out after 600s

Badge

Paste this into the project README to show the current result:

[![does it install](https://img.shields.io/endpoint?url=https://doesitinstall.com/badge/io.github.nirholas__x402-bridge.json)](https://doesitinstall.com/s/io.github.nirholas__x402-bridge.html)