Start Building
For Free.
Get your Ontology SDK API key and start extracting structured data from financial documents in minutes. 500 free data tokens per month. No credit card required.
Free Tier Includes
500 Free Data Tokens/Month
Full access to domain-specific models and financial validation. No credit card required.
API Key in Minutes
Fill out a quick form, and our team will provision your key within one business day.
Zero Data Retention
Your documents are processed and discarded. Nothing is stored. Ever.
3 Lines of Code
From PDF to structured data in a single API call. Python, Node.js, and REST.
Need More?
For production workloads, custom SLAs, or enterprise features, talk to our team.
Contact Sales →From signup to structured data in 3 steps
Sign Up
Fill out the form above. We'll provision your API key within one business day.
Install the SDK
pip install henon-sdk — or use our REST API directly. Python, Node.js, and cURL.
Extract Data
Send a PDF, get structured JSON back. Capital calls, NAV statements, K-1s, and 25+ more.