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Migrate auth from API key headers to Bearer tokens
Last updated 3 weeks ago · 4 min read
All API requests require authentication. Choose one of the methods below to get started.
Include your API key in the X-Api-Key header with every request to authenticate your application.
Include your API key as a Bearer token in the Authorization header with every request.
It always starts the same way: a developer merges a PR that renames an endpoint, changes an auth flow, or deprecates a parameter. Somewhere, a help article describes behavior that no longer exists. Three days later, a customer files a support ticket. Or doesn't — and just leaves.
Editorial styleA developer merges a pull request that updates the authentication flow, changes an API response, or deprecates a parameter.
Somewhere, a help article, API reference, or onboarding guide now describes behavior that no longer exists.
Support tickets spike. Trust erodes. Developers build against wrong examples. Revenue leaks quietly.
sound familiar?
We just shipped a major API change. Our docs are definitely wrong and we have no idea where.
We get support tickets every week that boil down to: "your docs are outdated."
A new engineer spent their first week following our Getting Started guide. Half of it didn't work.
We have hundreds of docs pages and no automated way to know which ones are stale.
Every sprint we say we'll update the docs. We never do. The backlog just grows.
A customer churned and cited confusing documentation as the reason.
No account · No repo · Results in 2 minutes
real data from real audits
Not a sample. Not a benchmark study. Actual findings from real docs audits run on this platform.
Auth & API endpoints are the #1 source of drift
Authentication flows, request shapes, and SDK interfaces change constantly — and the public API docs almost never keep up.
AI coding agents now read your docs — and hallucinate when they're stale
Cursor, Claude, ChatGPT, and Copilot scrape your public docs to write integration code. Stale endpoints become confidently broken code shipped into your customers' apps.
Drift is weeks old before anyone notices
The average gap between a code change and a docs update is 11 days. Most teams find out when a customer files a ticket.
Jeanine, Founder
Built DocsCanary after watching engineering teams spend weeks reacting to docs drift that a five-minute automated check would have caught.
Drop in your API reference, SDK guide, or developer portal URL. We also auto-detect any OpenAPI spec on the same origin. No signup, no repo access.
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Most teams don't know their docs are stale until customers tell them.
Docs lag behind code by days or weeks before anyone notices
Customers hit outdated API references, deprecated endpoints, wrong instructions
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