signal-mcp-server

Item: signal-mcp-server
Rating: 74
Author: M8ven

MCP server that wraps a running signal-cli daemon's JSON-RPC API as MCP tools, enabling list contacts, groups, conversations, read and send messages, and react to messages on Signal.

→ Transmitt0r/signal-mcp-server · listed on glama

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// key findings

⚠️

Tests do not pass

Either the test suite is broken or the code regressed. Either way the published behaviour can’t be verified by the publisher’s own tests.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configSIGNAL_ACCOUNT— "+4916789"

configSIGNAL_HTTP_URL— "http://127.0.0.1:8080"

configSIGNAL_MCP_MAX_MSGS— 500 Max messages to buffer in memory

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/transmitt0r-signal-mcp-server-u4hxf8)](https://m8ven.ai/mcp/transmitt0r-signal-mcp-server-u4hxf8)

commit: 84426b3e6a81d5d8ebd315e444ff7c0fc03bf385

code hash: 1e4e9a078c003a24c6a55ae030fb90c06c969f1a19602ea8bf6123c246ed437d

verified: 7/14/2026, 8:29:07 AM

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