Built for finance, and only finance.
Generic document processing APIs are great, but they don't speak the language of private capital. We do. Here's what that means for you.
The competitive landscape
There are two types of companies in document processing, and Henon is neither. We're something new.
Incumbent Platforms
e.g. incumbent platforms
Deep private markets expertise
Monolithic, enterprise-only. Not developer-first.
Horizontal APIs
e.g. horizontal document APIs
Developer-first, simple APIs
Zero private markets domain knowledge. Don't know what a capital call is.
Henon Ontology SDK
Developer-first API + deep private markets expertise
Head-to-head comparison
Henon vs. generic document APIs
| Feature | Generic API | Henon |
|---|---|---|
| Private Markets Expertise | ||
| Financial Validation & Reconciliation | ||
| Pre-Built Schemas (25+ PE/PC docs) | Build your own | |
| Confidence-Gated Billing | ||
| Zero-Error Guarantee | ||
| Developer-First API | ||
| Document Parsing |
The true cost of "good enough"
A generic API might seem cheaper on a per-page basis, but it creates a hidden cost: hours of manual review and validation by expensive analysts.
Our analysis shows that an analyst only needs to spend 2.1 hours per week checking a generic API's output to make Henon the more cost-effective choice.
With Henon, you get production-ready data, instantly. No review required.
Annual Cost Comparison — Typical PE GP
The Henon Ontology API eliminates manual review entirely and provides:
Common questions
"We already use Canoe / FactSet."
We're not asking you to rip and replace your system of record. The Ontology SDK is an API that your developers can use to automate the gaps in your current workflow or build new, custom tools that your platform doesn't support. Think of us as a flexible engine you can use alongside your existing platform.
"We can build this ourselves with OpenAI."
You absolutely can, and many have tried. What they find is that getting to 80% accuracy is easy, but getting from 80% to 99.9% is difficult, but 0.0000 Errors (4 significant zeros) per 10,000 data points, the level required for production financial data — is incredibly difficult and expensive. We've already invested the years of engineering and training to build that zero-error engine, so you can focus on your core business.
"XYZ is less expensive."
Henon provides a free tier to test the API. Generic data extraction APIs are helpful, but our clients require a compliance-ready tier with domain-specific models that save you hours of manual review. An analyst spending 2 hours a week checking outputs will always make us the cheaper option.
Ready to see the difference?
Get your free API key with 500 free data tokens per month. See why domain-specific intelligence matters.