useSignal: MCP server (Other) in 2026

QR codes, JSON diff/format, hashes, JWT, cron, timestamps, placeholders, flowcharts, forms, regex.

Verified working on 2026-10-27 Rank 9 of 102 in Other. Source: MCP Registry record, checked 2026-10-27.

Key facts

Type	MCP server, remote (streamable HTTP)
Category	Other
Endpoint	https://www.usesignal.dev/mcp
Registry name	io.github.sanket-naik/usesignal
Version (registry)	0.2.0
Published in registry	2026-10-03
Registry record updated	2026-10-03
Repository	https://github.com/sanket-naik/usesignal-claude-plugin
Website	https://www.usesignal.dev/
Authentication	None needed for initialize and tools/list (checked anonymously)
Latest check	Up on 2026-10-27, 119 ms to initialize
Tools listed	12
Checks passed	1 of 1 daily checks
Last verified working	2026-10-27
Source	https://registry.modelcontextprotocol.io/v0/servers/io.github.sanket-naik%2Fusesignal/versions/latest (pulled 2026-10-27)

Tools (12)

usesignal_generate_form, usesignal_generate_colors, usesignal_test_regex, usesignal_generate_qr, usesignal_encode_decode, usesignal_explain_cron, usesignal_convert_timestamp, usesignal_diff_json, usesignal_format_json, usesignal_placeholder_image, usesignal_flowchart, usesignal_open_workbench

Verification history

One probe a day: initialize, then tools/list, nothing else. Last 1 checks: 10-27 up

Install

Claude Code

claude mcp add --transport http usesignal https://www.usesignal.dev/mcp

Claude (claude.ai, Desktop)

Settings > Connectors > Add custom connector. Name: useSignal. URL: https://www.usesignal.dev/mcp

Cursor

{
  "mcpServers": {
    "usesignal": {
      "url": "https://www.usesignal.dev/mcp"
    }
  }
}

Save as ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).

ChatGPT

Settings > Connectors > Advanced > Developer mode, then Create. Name: useSignal. MCP server URL: https://www.usesignal.dev/mcp. Authentication: No authentication.

Custom connectors need a plan with Developer mode; menu names change between releases.

Hermes Agent

mcp_servers:
  usesignal:
    url: "https://www.usesignal.dev/mcp"

Add to ~/.hermes/config.yaml, then run /reload-mcp.

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