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unlob

API reference

Base URL https://api.unlob.com. Every endpoint is a GET. Authentication is an x-api-key orAuthorization: Bearer header, except where noted.

Verified 5 August 2026·API surface

Search & retrieval

Find passages, widen a result set, and fetch the one document you actually decided to read.

Coverage graph

Traverse the relationships the index already computed: corroboration, authority, entity briefs, connecting paths and packed context.

Discovery & operations

Capability discovery, coverage transparency, account state and the probes your infrastructure expects.

Get a key

Everything on this page works on the free tier. 10,000 requests a month, no card required.