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mcp vs llama_index

mcp and llama_index share 22 technologies: psycopg, pymongo, pyarrow, pyiceberg, ibm-db, oracledb, starlette, OpenAI, MCP, bedrock-agentcore, jinja2, beautifulsoup4, defusedxml, lxml, markdownify, markitdown, pdf2image, pdfplumber, Pydantic, python-json-logger, boto3, and psutil. Both are written in Python.

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What they share and what sets them apart

awslabs

mcp

Open source MCP Servers for AWS

Python9.9kRead on November 14, 2026, at commit 5d58a6aWhat is mcp built with?

Only in mcp

In common

run-llama

llama_index

LlamaIndex is the document processing platform for AI

Python52.9kRead on November 13, 2026, at commit baeabbfWhat is llama_index built with?

Only in llama_index

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
mcp970,557 lines written1,184 code files
llama_index473,258 lines written2,055 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
mcp2.4% of its commits signed by AIWith Claude Code, GitHub Copilot, and Codex
llama_index0.2% of its commits signed by AIWith Claude Code, Cursor, and GitHub Copilot
ActivityFrom GitHub and its history, on the day SeeRepo read it.
mcpLast push November 13, 20262,089 commits9,918 stars
llama_indexLast push November 11, 20267,967 commits52,885 stars
TestsThe files that test the code, and the share of code files a test imports.
mcp1,401 test files77.6% of its code files have a test that imports them
llama_index1,607 test files46.5% of its code files have a test that imports them

Frequently asked questions

Which is bigger, mcp or llama_index?
mcp, with 970,557 lines written; llama_index has 473,258.

The proof: awslabs/mcp's code at commit 5d58a6a

Which has more GitHub stars, mcp or llama_index?
llama_index, with 52,885 stars; mcp has 9,918.

The proof: run-llama/llama_index on GitHub

Which has more tests, mcp or llama_index?
llama_index, with 1,607 test files; mcp has 1,401.

The proof: run-llama/llama_index's code at commit baeabbf

Which was updated more recently, mcp or llama_index?
mcp: its last push was on November 13, 2026, and llama_index's on November 11, 2026.

The proof: awslabs/mcp's commits on GitHub

Which has more commits signed by AI, mcp or llama_index?
mcp: an AI signed 2.4% of its commits, with Claude Code, GitHub Copilot, and Codex; in llama_index, 0.2%.

The proof: the commits each tool signed in awslabs/mcp

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