Sipflow MCP MCP server

An MCP server that integrates SIP/VoIP expertise directly into AI coding assistants like Cursor, VS Code, and Claude. It provides access to vendor documentation for Asterisk, FreeSWITCH, Kamailio, and others, along with utilities to debug PCAPs, parse SDP, validate E.164 numbers, and check STIR/SHAKEN compliance.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Sipflow

MCP endpoint (Streamable HTTP)

https://mcp.sipflow.dev/mcp

Vendor documentation

What you can do with it

Review SIP configuration files in pull requests
Debug live call failures using PCAP traces
Parse and diff SDP bodies
Validate STIR/SHAKEN signatures

Tools advertised by the last live check:

search_sip_docs
lookup_response_code
lookup_sip_header
detect_sip_stack
detect_sip_vendor_from_config
minimize_sip_trace
render_sip_ladder
sip_ladder_example
lint_sip_request
parse_sip_message
diff_sip_messages
review_sip_config
webrtc_sip_checklist
parse_sdp
compare_sdp_offer_answer
validate_stir_shaken_identity
stir_attestation_explainer
validate_e164_number
troubleshoot_response_code
dns_diagnose_sip_target
fetch_sipflow_share
submit_sipflow_feedback

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http sipflow-mcp https://mcp.sipflow.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add sipflow-mcp --url https://mcp.sipflow.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable sipflow-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "sipflow-mcp": {
      "url": "https://mcp.sipflow.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "sipflow-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.sipflow.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start sipflow-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "sipflow-mcp": {
      "type": "http",
      "url": "https://mcp.sipflow.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http sipflow-mcp https://mcp.sipflow.dev/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "sipflow-mcp": {
      "url": "https://mcp.sipflow.dev/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "sipflow-mcp": {
      "serverUrl": "https://mcp.sipflow.dev/mcp"
    }
  }
}

See all 957

Do you run Sipflow MCP?

Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.

Claim this listing