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The Flightline API is a small, focused REST API for running automated quality-control reviews on mortgage loan packages. The model is deliberately simple:
  1. Create a review and attach the loan package in a single request.
  2. Poll the review (or receive a webhook) until it is completed.
  3. Fetch the report: a structured summary of the issues Flightline found.
Base URL   https://api.flightlinehq.com/v1

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Concepts

Review

A single quality-control run over one loan package. Identified by a review_id (UUID). You may also set your own reference_id.

Documents

The full case package archive, or the PDFs and images that make up the loan package. Submitted when you create the review.

Report

The result of a completed review: an overall outcome plus a list of issues with severities.

Webhooks

Optional callbacks so you don’t have to poll. review.completed and review.failed.

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Authentication in one line

Every request must include your organization’s API key: 
curl https://api.flightlinehq.com/v1/reviews/{review_id} \
  -H "Authorization: Bearer fl_live_..."
See Authentication for how keys are issued and scoped.
The API is org-scoped end to end: a key can only ever see reviews that belong to its organization. There are no unauthenticated endpoints.