Ragstack MCP Server

Serverless document and media processing with AI chat. Scale-to-zero architecture - no vector database fees, no idle costs. Upload documents, images, video, and audio - extract text with OCR or transcription - query using Amazon Bedrock or your AI assistant via MCP. It runs locally over stdio via the published package.

People connecting web scraping tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-08-20 · ★ 25 · #26 OF 78 MAINTAINED WEB SCRAPING · VERIFIED 2026-08-25

Apache-2.0 · Python servers · how we verify → /methodology

01 · Install Ragstack

before you install - you'll need

Set RAGSTACK_GRAPHQL_ENDPOINT, RAGSTACK_API_KEY before connecting.

Claude Code

claude mcp add hatmanstack-ragstack-lambda -- uvx ragstack-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "hatmanstack-ragstack-lambda": {
      "command": "uvx",
      "args": [
        "ragstack-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license Apache-2.0 - declared in the repository

pypi package ragstack-mcp - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.HatmanStack is GitHub-verified and matches the repo owner

03 · What Ragstack can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v2.5.1 · 2026-04-27

[2.5.1] - 2026-03-28 · Fixed · KB retrieval failures silently swallowed: except Exception: pass around Bedrock KB retrieval in query_kb/handler.py hid all errors. Now surfaces ClientError with specific handling for…

v2.5.0 · 2026-03-20

[2.5.0] - 2026-03-20 · Chat API is now async (mutation + polling): queryKnowledgeBase moved from Query to Mutation. Returns immediately with PENDING status. Clients must poll getConversation for results. The old…

v2.4.0 · 2026-03-20

[2.4.0] - 2026-03-20 · Added · DLQ replay Lambda: New dlq_replay Lambda replays messages from any of the 5 DLQ/source-queue pairs (processing, batch, scrape-discovery, scrape-processing, sync). Manually triggered. FIFO…

04 · Who maintains Ragstack

ragstack is maintained by hatmanstack. It's the only MCP server we track from this author; the repo dates to Oct 2025.

05 · Facts

repository: github.com/hatmanstack/ragstack-lambda
category: web scraping - ranked #26 of 78 actively-maintained web scraping servers as of 2026-08-25.
registry: io.github.HatmanStack/ragstack (active, first published 2026-02-06)
packages: pypi:ragstack-mcp

06 · Ragstack FAQ

What is Ragstack?

Is Ragstack still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-20. We re-verify nightly.

How do I install Ragstack?

Run `uvx ragstack-mcp`. The README documents 2 environment variables (RAGSTACK_GRAPHQL_ENDPOINT, RAGSTACK_API_KEY) to set first. Set RAGSTACK_GRAPHQL_ENDPOINT, RAGSTACK_API_KEY before connecting. You can also paste the ready-made client config above.

Does Ragstack run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Ragstack

Alternatives to Ragstack

Maintained web scraping servers if Ragstack isn't the fit.

Pairs well with

Servers that cover what Ragstack doesn't - only shown when the pairing reason fits the companion.

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