Extend
Extend is a production-ready document processing API that converts unstructured documents (PDFs, scanned images, forms, invoices) into structured JSON using vision models and LLM-based extraction. It delivers 95-99%+ accuracy with an agentic Composer that automatically tunes schemas and optimizes extraction pipelines without manual tuning.
Overview
| Category | Ai |
| Self-Hostable | No |
| On-Prem | No |
| Best For | startup, growth, enterprise |
| Last Verified | 2026-02-13 |
Strengths & Weaknesses
Strengths:- dx
- reliability
- performance
- limited information on pricing transparency
- no self-hosting or on-premises option
- Composer agent optimization requires example uploads and iterative tuning
When to Use
Best when:- high-accuracy document extraction
- complex multi-step document workflows
- need confidence scoring and uncertainty flagging
- bulk document processing with cost optimization
- real-time document processing needs
- need on-premises deployment
- strict data residency requirements without cloud processing
- simple single-document extraction without workflow needs