Add: 402Signal

[402signal]

Add 402Signal community server listing. Repo https://github.com/402signal/402signal

[vercel]

@402signal is attempting to deploy a commit to the Gus Marquez's projects Team on Vercel.

A member of the Team first needs to authorize it.

[402signal]

MIT LICENSE is now on the listed repo: https://github.com/402signal/402signal/blob/main/LICENSE (commit f539690).

Meets CONTRIBUTING: recognized OSS license (MIT).

[ross402signal]

Current production listing correction: the pending $0.01 copy is obsolete. Please use the replacement below before merging.

Please update the existing YAML entry:

name: "402Signal"
github_url: "https://github.com/402signalhq/402signal"
description: "Checks live x402 routes on Base, Solana, and Algorand. $0.003 USDC settles only for a valid live eligible route; normal typed misses are not settled and seller payment is separate."
category: "search"

The hosted connection is Streamable HTTP at https://402signal.com/mcp/v0.3.1. Please represent it as a remote HTTP server using the directory-supported format. The current package_type: docker / package_name: 402signal/402signal should not imply a verified published Docker image; the canonical repository contains the source and Dockerfile.

Verified source: https://402signal.com/rails (3000 atomic USDC = $0.003 on all three rails) and https://402signal.com/llms.txt. Canonical MIT-licensed source: https://github.com/402signalhq/402signal. Canonical MCP Registry ID: io.github.402signalhq/402signal v0.3.1, remote https://402signal.com/mcp/v0.3.1; https://402signal.com/mcp remains supported. Free tools: preview and validate. Paid route calls require an x402-capable client. Contact: ross@402signal.com.