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Docs/Integrations/MCP Tools

MCP Tools

MeshFlow can auto-trace any MCP server tool call. Every call emits a tool_call span with the tool name, input hash, output hash, and latency — no changes to the MCP server or tool definition.

Install

bash

pip install "meshflow[mcp]" # Python
npm install @meshflow/mcp-tracer # TypeScript

Auto-trace

Wrap your MCP client with TracedMcpClient. All tool calls are intercepted and forwarded to MeshFlow spans automatically.

python

from meshflow.adapters.mcp import TracedMcpClient

mcp = TracedMcpClient(

server_url="http://localhost:8000",

cloud=cloud,

run_id="run-abc123",

)

result = await mcp.call_tool("web_search", {"query": "AI governance 2025"})

Manual span

Emit a tool_call span directly from any tool wrapper.

python

cloud.ingest_span(

run_id="run-abc123", agent_name="my_agent",

span_type="tool_call", name="web_search",

input_text=query, output_text=result,

tool_version="web_search@1.2.0",

)

TypeScript

typescript

import { TracedMcpClient } from '@meshflow/mcp-tracer';

const mcp = new TracedMcpClient({ serverUrl, apiKey, runId });

const result = await mcp.callTool('web_search', { query });

CrewAI

TypeScript SDK

Docs/Integrations/MCP Tools

MCP Tools

MeshFlow can auto-trace any MCP server tool call. Every call emits a tool_call span with the tool name, input hash, output hash, and latency — no changes to the MCP server or tool definition.

Install

bash

pip install "meshflow[mcp]" # Python
npm install @meshflow/mcp-tracer # TypeScript

Auto-trace

Wrap your MCP client with TracedMcpClient. All tool calls are intercepted and forwarded to MeshFlow spans automatically.

python

from meshflow.adapters.mcp import TracedMcpClient

mcp = TracedMcpClient(

server_url="http://localhost:8000",

cloud=cloud,

run_id="run-abc123",

)

result = await mcp.call_tool("web_search", {"query": "AI governance 2025"})

Manual span

Emit a tool_call span directly from any tool wrapper.

python

cloud.ingest_span(

run_id="run-abc123", agent_name="my_agent",

span_type="tool_call", name="web_search",

input_text=query, output_text=result,

tool_version="web_search@1.2.0",

)

TypeScript

typescript

import { TracedMcpClient } from '@meshflow/mcp-tracer';

const mcp = new TracedMcpClient({ serverUrl, apiKey, runId });

const result = await mcp.callTool('web_search', { query });

CrewAI

TypeScript SDK