DilutionTracker does offer an API, but its pricing page says API access comes with an institutional subscription, priced by quote. If you're an individual developer or a small team building your own dilution tool, Ask Edgar's API is publicly documented and runs on prepaid credits you buy through the API Platform.
This guide covers what DilutionTracker says about its API, what to check in any dilution data API, and what Ask Edgar's endpoints return.
What DilutionTracker says about its API
The FAQ at the bottom of DilutionTracker's pricing page answers this directly:
Can I download data in bulk or access the data via API? Yes, with an institutional subscription. Please get in touch for a quote.
Checked on 2 November 2026 at dilutiontracker.com/pricing.
Terms change, so check the page for the current wording before you plan around it. If you already use DilutionTracker at a fund or trading firm, ask them about API access for your team.
What to check in any dilution data API
Dilution is when a company issues new shares, which shrinks each existing shareholder's slice. For small caps it usually comes from warrants, convertible notes, shelf registrations and at-the-market (ATM) offerings. A useful dilution API should let you answer these questions for a ticker:
- Instrument detail: how many warrants and convertibles are still outstanding, at what exercise or conversion prices, and with what price-protection terms. Price protection resets an instrument's price lower if the company later sells shares more cheaply.
- Registration capacity: whether the company has an effective shelf registration (pre-approved permission to sell shares over time) or an ATM program, and how much it can still raise.
- Share structure: float (shares available to trade) and shares outstanding, so you can size potential dilution against what already exists.
- Update behavior: how records change when filings disclose exercises, conversions or repricings, and whether you can see when each change happened.
- Access terms: who can sign up, whether you can try it yourself, and whether you need a license to show the data in a product other people use.
- Cost model: whether you pay a subscription or per request, and whether you can estimate a query's cost before you run it.
What Ask Edgar's API returns
Ask Edgar's API covers the core dilution datasets as JSON, with documentation for each endpoint:
- Dilution Data: warrants and convertibles with remaining balances, exercise and conversion prices, instrument types and price-protection labels. Docs
- Dilution Data Advanced: disclosed holders, financing banks, full price-protection clauses and dated update notes. Docs
- Registrations: shelf and ATM status, relevant dates, amounts raised and remaining capacity, with filing links. Docs
- Float and Outstanding: analyst-audited float, shares outstanding and ownership mix. Docs
- Dilution Rating: overall and component offering-risk ratings, estimated cash runway and the explanations behind them. Docs
Warrant and convertible records are updated as filings disclose exercises, conversions and repricings.
On access and cost:
- Prepaid credits: you buy credits up front, and they don't expire. Charges depend on how much data a request returns, and rates vary by endpoint. There's no self-serve free tier, but the team can set up a demo.
- Cost before you query: a free estimate endpoint shows what a query will cost before you run it, and every billed response includes a header with your remaining credit balance. See How to Estimate AskEdgar API Costs Before You Query and API pricing.
- Cached repeats: an identical request repeated within an hour comes back from cache at no charge.
- Licensing: standard access is for personal use. Showing the data to other people, for example in an app you sell, needs a license.
Which should you use?
Our recommendation, as the company behind Ask Edgar: DilutionTracker's app is simpler, which makes it a good place to start if you're new to tracking dilution. Ask Edgar is built for professional traders, hedge funds and investment banks that need deeper data, and for developers who want that data through a documented API they can buy credits for and test themselves. For a side-by-side of the two apps, read Dilution Tracker vs AskEdgar for traders and builders.
FAQ
Does DilutionTracker have an API? Yes, with an institutional subscription; its pricing page FAQ says to get in touch for a quote. Check the page for current terms.
Is there a free dilution data API? Ask Edgar has no self-serve free tier; you buy prepaid credits, or contact the team about a demo. The SEC offers free EDGAR APIs for raw filing data, but you'd have to extract warrant, convertible and shelf details from the filings yourself.
Can I use Ask Edgar data in an app I sell? Standard access is personal use only. Redistributing the data needs a license, so contact Ask Edgar first.
How much does Ask Edgar's API cost? It depends on which endpoints you call and how much data they return. See API pricing for current rates and a cost calculator.
Start building
Pick one ticker you know and one question, such as how much shelf capacity it has left. Then work through the quickstart.