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Update from support feedback: OpenAPI URL fetch failures during build - #6913

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ethanpalm merged 5 commits into
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mintlify/7ff29ad0
Aug 7, 2026
Merged

Update from support feedback: OpenAPI URL fetch failures during build#6913
ethanpalm merged 5 commits into
mainfrom
mintlify/7ff29ad0

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@mintlify

@mintlify mintlify Bot commented Aug 7, 2026

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Summary

Multiple support tickets escalated to humans after Mintlify builds failed with "Failed to fetch OpenAPI file for anchor or tab" against a hosted openapi URL, and the existing troubleshooting page had no coverage for this class of failure.

Changes

  • Added a new accordion to api-playground/troubleshooting.mdx that lists the common causes (unreachable/private host, auth-required endpoint, TLS/DNS, transient 5xx, spec republishing mid-build), shows how to reproduce the fetch with curl and validate locally with mint validate, and recommends either committing the spec into the docs repo (preferred when the source is behind auth) or serving it from a stable public HTTPS URL, with CI sequenced so the spec publishes before Trigger deployment is called.

Support context


Note

Low Risk
Documentation and navigation config only; no product code, auth, or data-handling changes.

Overview
Adds support-oriented documentation for Mintlify builds that fail with "Failed to fetch OpenAPI file for anchor or tab" when docs.json references a hosted OpenAPI URL.

API playground troubleshooting gains a new accordion covering typical causes (private/unreachable hosts, auth, TLS/DNS, transient errors, spec republishing mid-build), unauthenticated public curl checks, and fixes: commit the spec in the docs repo or serve it from a stable public HTTPS URL—with a link to a deeper guide.

A new help center page walks through reproducing the fetch outside Mintlify, interpreting curl results, using mint validate, diagnosing CI race conditions when Trigger deployment runs before the spec is published, and committing the spec when the URL cannot be public. The page is wired in via a hidden, searchable Help center tab in docs.json. Vale allowlist inflections are added for prose linting.

Reviewed by Cursor Bugbot for commit 1d68eeb. Bugbot is set up for automated code reviews on this repo. Configure here.

@mintlify

mintlify Bot commented Aug 7, 2026

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mintlify 🟢 Ready View Preview Aug 7, 2026, 4:20 PM

@mintlify

mintlify Bot commented Aug 7, 2026

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Preview deployment for your docs. Learn more about Mintlify Previews.

Project Status Preview Updated (UTC)
tomee 🟢 Ready View Preview Aug 7, 2026, 4:20 PM

💡 Tip: Enable Workflows to automatically generate PRs for you.

Split the troubleshooting accordion: the curated page keeps a complete,
compact answer, and the deep diagnostic walkthrough moves to a new
help-center page that is searchable but excluded from the sidebar.

- Add hidden + searchable "Help center" group to docs.json
- Revert es/fr/zh edits so the translation pipeline regenerates them
- Broaden the allowlist vocabulary entry to cover inflected forms

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
@ethanpalm
ethanpalm merged commit f3e083c into main Aug 7, 2026
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@ethanpalm
ethanpalm deleted the mintlify/7ff29ad0 branch August 7, 2026 23:05
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2 participants