What is 402signal?
402signal is a MCP server by 402signalhq that checks and validates live x402 payment routes across Base, Solana and Algorand. It is listed under Other and has no public popularity data yet.
| Type | Mcp server |
|---|---|
| Author | 402signalhq |
| Repository | 402signalhq/402signal |
| Popularity | no public popularity data yet |
| Category | Other |
| Security | Review before installing (72/100) |
| Rank | #3,705 of 4,418 MCP servers; #558 in Other |
| Runs | Cloud service |
| Language | Python |
Is 402signal safe to install?
402signal scores 72/100 on the MCPMods security check: Review before installing. Things to review: sends your data to a cloud service; can take actions such as send, write or deploy. It passed 3 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Sends your data to a cloud service | Review |
| No credentials mentioned | Pass |
| Can take actions such as send, write or deploy | Review |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install 402signal?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/402signalhq/402signal
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add 402signal -- <command from README> claude mcp add --transport http 402signal <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs 402signal for you:
Add the "402signal" MCP server from https://github.com/402signalhq/402signal to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.