# SIPFlow

> Use this tool when you need to analyze and troubleshoot SIP/VoIP traffic, identify vendor stacks, or validate telecom configurations. SIPFlow provides a comprehensive grounding layer and PCAP analyzer, offering hybrid search, vendor detection, and trace tools to solve problems related to VoIP protocol issues and configuration errors. It takes in SIP traces, config blobs, or PCAP files and outputs detailed analysis, validation results, and risk flags, making it ideal for use in telecom debugging and optimization contexts.

Canonical page: https://skillsregistry.net/skills/sipflow-sipflow  
JSON: https://api.skillsregistry.net/v1/skills/sipflow-sipflow

## Description

Sipflow MCP is a SIP/VoIP/telecom grounding layer and PCAP analyzer:

- Hybrid search across a curated VoIP corpus — ~40 vendor stacks, 60+ RFCs, STIR/SHAKEN, ATIS branded-calling specs
- Vendor detection from a trace or a config blob (Kamailio, OpenSIPS, FreeSWITCH, Asterisk, SIP.js, JsSIP, ...)
- Trace tools — minimize noisy headers, render SIP ladders as Mermaid, lint/diff/parse messages
- Config review for Kamailio / OpenSIPS / FreeSWITCH / Asterisk with risk flags
- SDP parse + offer/answer compare
- STIR/SHAKEN Identity header validation and attestation explainer
- E.164 number validation, response-code troubleshooter, DNS NAPTR/SRV + TLS cert diagnostics
- One-shot hydration of `sipflow.dev/share/<token>` URLs

All tools are read-only. Every result carries a verbatim `source_url` so the agent cites real RFC sections and vendor docs instead of hallucinating directive names or response-code semantics. A skill (`/sip-debugger`) and a file-scoped rule ship with the plugin so the agent reaches for these tools automatically when you're editing SIP material.

## Trust

- **Trust score (0–1):** 0.30
- **Verification tier:** unverified
- **Last scanned:** 2026-09-01

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** search
- **Updated:** 2026-09-01

## Source

- **Source listing:** [Smithery](https://smithery.ai/server/sipflow/sipflow)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "sipflow-sipflow"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/sipflow-sipflow` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/sipflow-sipflow/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt