Extend

Extend is document processing infrastructure for AI agents and data pipelines. Its APIs parse, extract, classify, split and edit documents, reading tables, checkboxes, images, handwriting and signatures across more than 35 file types and returning structured output with citations, bounding boxes and configurable chunking. Client libraries cover Python, TypeScript, Java and Go, plus a command line interface, and the service processes millions of pages a day. It is built for engineering teams in finance, insurance, real estate, healthcare and logistics, where documents are the system of record. Confidence scoring runs a multi pass review agent across every output to flag likely errors before users encounter them. Processing modes let a job trade latency, cost and accuracy, with a low latency setting for interactive use and a cost optimized setting for bulk work. A composer agent takes example documents and refines extraction schemas automatically rather than leaving engineers to iterate on prompts. Workflows orchestrate multi step pipelines that parse, split, extract, validate and route, with versioning, durability and human review steps, and a studio with an evaluation suite lets domain experts change schemas and catch regressions. Documents beyond 2,000 pages are supported. Pricing is credit based. Pay As You Go is free to start with 10,000 credits included, no contract, monthly minimum or sales call, then $0.0125 per additional credit. Scale is $500 per month, includes 50,000 credits, lowers the rate to $0.01 per additional credit and adds a private Slack channel, higher rate limits, custom data retention and a HIPAA compliance option. Enterprise is custom and adds deployment in your own cloud, custom agreements and service levels, single sign on, advanced access control, multiple workspaces and custom models. The company describes itself as Series A stage and recently released an autonomous extraction agent that it reports as leading on three document benchmarks.