The13f MCP

Name: The13f MCP
Author: pickelfintech

by pickelfintechversion 0.5.0i★ –iRuns on your computer

Registry namecom.the13f/mcp

Install

Overview

Description from the maker (original English)

Institutional 13F intelligence: 8,600+ managers, holdings, changes, ownership, overlap and flows.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other
You need to fill in: THE13F_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: THE13F_API_KEY, THE13F_API_BASE_URL, THE13F_MCP_TIMEOUT, THE13F_MCP_REPORTS

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

PyPIPython’s uv installed (for the uvx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "the13f": {
      "command": "uvx",
      "args": [
        "the13f-mcp"
      ],
      "env": {
        "THE13F_API_KEY": "your-value",
        "THE13F_API_BASE_URL": "your-value",
        "THE13F_MCP_TIMEOUT": "your-value",
        "THE13F_MCP_REPORTS": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add the13f --env THE13F_API_KEY=your-value --env THE13F_API_BASE_URL=your-value --env THE13F_MCP_TIMEOUT=your-value --env THE13F_MCP_REPORTS=your-value -- uvx the13f-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "the13f": {
      "command": "uvx",
      "args": [
        "the13f-mcp"
      ],
      "env": {
        "THE13F_API_KEY": "your-value",
        "THE13F_API_BASE_URL": "your-value",
        "THE13F_MCP_TIMEOUT": "your-value",
        "THE13F_MCP_REPORTS": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "the13f": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "the13f-mcp"
      ],
      "env": {
        "THE13F_API_KEY": "your-value",
        "THE13F_API_BASE_URL": "your-value",
        "THE13F_MCP_TIMEOUT": "your-value",
        "THE13F_MCP_REPORTS": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

THE13F_API_KEY secret required env
Free pf13f_ key from https://the13f.com/integrations/. 100 calls/day, no credit card. Without it, every tool returns a structured free-signup-required response with the signup URL.
THE13F_API_BASE_URL env
Override API base URL. Defaults to https://api.the13f.com. Used for local development against a running copy of the13f's gui_server.
THE13F_MCP_TIMEOUT env
Per-request HTTP timeout in seconds. Minimum 5.
THE13F_MCP_REPORTS env
Set to off to stop the server telling The 13F when it fails on your computer (versions, operating system, place and error message only).

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain the13f.com (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32568 servers in this category
Published to the registry more recently than 71% of the other 32568 servers in this category
Basic checks equal to or better than 100% of the other 32568 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is The13f MCP safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: THE13F_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.5.0) reached the registry 15 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, FlyDocs

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

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FlyDocs

by flydocs.ai

Spec-driven development workflow: your agent works issues, sessions and the status lifecycle.

Runs on your computerUpdated today

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

the13f-mcp

Model Context Protocol server for the13f. Brings

institutional 13F intelligence into Claude Desktop, Cursor, VS Code +

Continue, and any MCP-compatible host — no HTTP code required on your side.

Important limitations

Research data only. Sourced from publicly disclosed SEC Form 13F filings, which lag quarter-end by up to 45 days. Past institutional positioning does not predict future performance. Nothing here constitutes investment advice. Every tool's response includes a disclaimer field; the host LLM should surface it alongside any analysis it produces.

Install

uvx the13f-mcp

Or pip install the13f-mcp if you prefer to manage Python environments yourself. Python 3.11+ required.

Get a free API key

Free, no payment, no credit card:

Visit https://the13f.com/developers/
Enter your email and solve the Cloudflare Turnstile challenge
Copy your pf13f_ key — shown once
Paste it into your MCP host's config as THE13F_API_KEY (see below)
Restart the host

Free tier: 100 read calls per day; quota rolls at UTC midnight. Signal and report tools arrive in later minor versions when paid tiers launch.

Configure your MCP host

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%/Claude/claude_desktop_config.json (Windows):

"mcpServers": { "the13f": { "command": "uvx", "args": ["the13f-mcp"], "env": { "THE13F_API_KEY": "pf13f_..." } } } }

Restart Claude Desktop. The13f tools should appear in the MCP tool list.

Cursor

Settings → MCP → Add Server. Paste the same JSON block into the "Custom" field.

VS Code with Continue

Settings → experimental.modelContextProtocolServers → add a stdio transport running uvx the13f-mcp with THE13F_API_KEY in env. The key reveal page at https://the13f.com/developers/signup-success shows a copy-paste-ready snippet with the key already filled in.

Available tools — v0.1.0 (Read tier, free)

Tool	What it does
`list_quarters`	All quarters with holdings data + the latest quarter
`search_managers`	Autocomplete 13F filers by name
`get_manager_holdings`	Full positions for a CIK + quarter
`get_manager_holdings_bulk`	Up to 25 `(cik, quarter)` pairs in one call
`list_all_managers`	Universe of 8,600+ filers with per-manager summary stats
`find_similar_managers`	Match a portfolio against the universe
`get_consensus_portfolio`	Most-widely-held securities per quarter
`get_market_regime`	Institutional regime snapshot (IIOI composite, state, transition)
`get_sector_flows`	Per-sector capital flows and risk posture

Planned tools — later versions

Version	Tools	Requires
v0.2.0	`get_security_signals`, `get_security_signals_bulk`, `get_portfolio_signals`	Standard tier subscription
v0.3.0	`generate_manager_report`, `generate_security_report`, `generate_sector_report`, `check_report_status`, `wait_and_download_report`	Standard tier + stored card; two-step confirm

The free-tier Read tools are enough to explore the data and build prompts against it. Signal and report tools deliberately wait on the paid-tier billing plumbing.

Example prompts

"Pull Berkshire Hathaway's top 20 positions as of Q4 2025 and summarize

what grew the most quarter-over-quarter."

"I own AAPL, MSFT, and NVDA equal-weight. Find the 5 institutional

managers whose portfolios most closely resemble mine."

"What sector did 13F filers most aggressively reduce last quarter? Show

me the top three managers leading the reduction."

The MCP host's LLM picks the right tool, fills in arguments, surfaces the disclaimer, and returns the result as structured JSON.

Environment variables

Var	Default	What it controls
`THE13F_API_KEY`	(none)	Your `pf13f_` key. Without it, tools return a structured "free signup required" response with a link to the signup page.
`THE13F_API_BASE_URL`	`https://api.the13f.com`	Override for local development against a running copy of the13f's gui_server.
`THE13F_MCP_TIMEOUT`	`30`	Per-request HTTP timeout in seconds. Minimum 5.

Source

Public source: https://github.com/pickelfintech/the13f-mcp. This is the snapshot that PyPI, Glama.ai, and the MCP community list point at. The GitHub repo is a push-mirror of the GitLab one at gitlab.com/pickel-fintech/the13f-mcp; GitLab remains the primary and also carries the release CI. Bug reports and PRs are accepted on either side.

License

MIT — see LICENSE. The hosted api.the13f.com API that this client calls is a separate service. A free API key (100 calls/day) is required; sign up at https://the13f.com/developers/.

Support

tom@pickelfintech.com — quote the request_id field returned by any failing tool call for fastest triage.

License

MIT. See LICENSE. The MCP server source is MIT-licensed; use of the the13f API itself is governed by the Terms of Service at https://the13f.com/terms.html.

The13f MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

FlyDocs

README from the maker

the13f-mcp

Important limitations

Install

Get a free API key

Configure your MCP host

Claude Desktop

Cursor

VS Code with Continue

Available tools — v0.1.0 (Read tier, free)

Planned tools — later versions

Example prompts

Environment variables

Source

License

Support

License