Do your 13F Workflow in Claude
The Q2 deadline passed August 14. Next morning, my quarterly 13F diff script said Bill Ackman had put on thirteen new positions. He hadn't. Fixing the script — and asking Claude instead.
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No Rust, No Release Branch: The Road to EdgarTools 6.0
EdgarTools 6.0 lands November 9. Three decisions shaped it: no Rust rewrite, no release branch, and every breaking change warns from inside 5.x first. Here is what breaks, and what each break buys.
Every Fix Leaves a Test Behind
A downstream user swept 31,691 SEC filings, filed two bug reports, and had a fix merged in under three days. The machinery that made it possible — regression tests named after the bugs they killed, replaying recorded HTTP — is a pattern most test suites could adopt in an afternoon.
I asked the edgar.tools MCP server six questions about ELF
An end-to-end session against the live MCP plugin in Claude Desktop. Six questions, eight tool calls, an honest list of what works and what's still mid-flight.
A real time event stream: the value of edgar.tools
edgar.tools is a real-time event stream of SEC filings - for humans clicking through Live Filings and AI agents triggering workflows on every 8-K, Form 4 and 10-K.
A new platform for edgar.tools
Visit the new Edgar.tools - built for the agentic web. Get realtime AI briefings as filings arrive delivered to your in-app Inbox, email or web hook destination
What's in SEC EDGAR? Nearly 1 Million Entities
The SEC EDGAR database has almost a million registered entities, and nearly a third of them are individual people. Here's what the data looks like, and how to navigate it with Python.
The AI Ecosystem Around EdgarTools
See how the most popular Python library for SEC EDGAR data became the default financial data layer for AI projects: from model training to RAG to MCP servers.
EdgarTools MCP for SEC Filings
EdgarTools ships a free, open-source MCP server that connects Claude to SEC EDGAR with 13 tools for financial statements, insider trading, company filings, and live SEC data. No API key required.
EdgarTools Joins the Claude for Open Source Program
EdgarTools — the most popular Python library for SEC EDGAR filings — has been accepted into Anthropic's Claude for Open Source Program. 2.3M downloads, 1,800+ stars, and what comes next