Washington · Established 2026

The Potomac Ledger

For AI · Model Context Protocol

Use The Potomac Ledger in your AI assistant

Connect our live data to Claude, ChatGPT, or any MCP-capable tool and ask about the stock trades of Congress and senior executive-branch officials — in plain language, answered straight from official disclosures.

The endpoint

https://potomacledger.com/mcp

Free covers the last 90 days, no key required. A Pro key unlocks the full archive — 26,000+ trades back to 2020 (see below). Streamable HTTP (MCP).

Connect it

One endpoint, every major assistant — Claude, Claude Code, ChatGPT, Cursor, Grok, and any MCP-capable client. Quick start in Claude: Settings → Connectors → Add custom connector, paste the endpoint, then toggle it on in your chat’s tools menu. Full step-by-step for every client:

Open the connect guide — Claude, ChatGPT, Cursor, Grok & more

Then just ask

What it can do

search_trades — filter by person, ticker, branch, buy/sell, conflict, amount, date
get_person_trades — every disclosed trade for a member or official
get_ticker_activity — who traded a given stock
list_recent_trades — the latest disclosures
list_conflicts — trades that overlap an official's committee or agency
aggregates — totals, top sectors, most-active officials, date range

Every response carries the same framing: disclosed date is not the trade date, dollar figures are ranges, conflict flags are potential overlaps (not accusations), and nothing here is investment advice.

Field definitions, per-field and per-year completeness, and known limitations: data dictionary (JSON). Usage terms: data license.

Pro — the complete archive

The free tier covers the last 90 days. Pro unlocks the entire history — more than 26,000 disclosed trades dating back to 2020 — with generous rate limits, for researchers, journalists, and developers building on the data.

$35/month or $350/year. After checkout, your API key is emailed within a few minutes; add it as an Authorization: Bearer YOUR_KEY header (see the connect guide).

Get Pro — $35/month Pro annual — $350/year
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