Disclosed Capitol vs. QuiverQuant

Feature comparison

Competitor column reflects QuiverQuant's public surface as of July 2026. “—” means we haven't confirmed it as a product on their site. If something here is out of date, email admin@disclosedcapitol.com and we'll update it.

The QuiverQuant API vs. a free API tier

If you searched for a “QuiverQuant API,” you want programmatic access to congressional trading data. QuiverQuant has a mature, well-documented API with a Python SDK — but as of July 2026 it starts at a paid tier (around $30/month, no free tier), and its self-serve plans exclude commercial-use rights, so commercial projects require a sales conversation.

Disclosed Capitol's REST API has a free tier you can start with immediately — clean JSON for politicians, trades, tickers, and committee portfolios, with per-member performance fields (CAGR, alpha) in the response and new STOCK Act filings ingested within minutes of public posting. Get a key on the API access page — no credit card for the free tier.

When to choose Disclosed Capitol

• You want to build on the data without paying up front — there's a free API tier.
• You want free email alerts on new disclosures rather than a paid alerts add-on.
• You want AI-assisted analysis — Chad answers cross-dataset questions directly, in plain English.
• You want committee-level portfolios (House Armed Services, Senate Banking, etc.), not just individual member pages.

When QuiverQuant might fit better

QuiverQuant is the better fit if you need a broad alt-data catalog beyond politics — institutional 13F holdings, insider trading, corporate lobbying, government contracts, patents, retail sentiment, and more — a native iOS app with push notifications, or a mature commercial API and are comfortable with paid tiers. Both platforms pull congressional trades from the same primary STOCK Act filings; the difference is scope and what each layers on top.

Frequently asked questions

Is Disclosed Capitol a QuiverQuant alternative?

Yes. Both track official STOCK Act disclosures of U.S. congressional stock trades from the same primary source (Periodic Transaction Reports). QuiverQuant is the larger, broader platform with a wide alt-data catalog and an iOS app; Disclosed Capitol focuses on congressional/executive trading and adds a free developer API tier, free email alerts, the Chad AI research assistant, and committee-level aggregated portfolios.

How much does the QuiverQuant API cost, and is there a free version?

As of July 2026, QuiverQuant's API ("Quiver API") starts at a paid Hobbyist tier around $30/month with no free tier, and its Hobbyist and Trader plans explicitly exclude commercial-use rights — commercial use requires contacting their sales team. Disclosed Capitol's REST API has a free tier you can start with immediately (no credit card), returning JSON for politicians, trades, tickers, and committee portfolios. Verify current QuiverQuant pricing on their site.

Which one has free trade alerts?

Disclosed Capitol offers free email trade alerts (per-ticker and per-member). QuiverQuant's alerts are a paid Premium feature. Both are honest about their tiers — check each site for current details.

Does QuiverQuant have an AI assistant?

Not as of July 2026 — QuiverQuant does not advertise a first-party AI chat assistant. Disclosed Capitol ships Chad, an AI research assistant that answers plain-English questions across the trade, committee, and market datasets (e.g. "which committee chairs bought defense stocks this quarter?").

What does QuiverQuant do better?

Honestly: QuiverQuant has a broader alt-data catalog well beyond politics (institutional 13F holdings, insider trading, corporate lobbying, government contracts, patents, retail sentiment, and more), a native iOS app with push notifications, a longer track record, and a mature commercial API. If you need that wide dataset spread or a mobile app, QuiverQuant is a strong choice.

Related: Disclosed Capitol vs. Capitol Trades · the developer API.