Meta Provider API calls are failing on OpenRouter with error 401.

What to do

• Check whether your product depends on OpenRouter. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 0m it lasted.

  Anything that failed between 2026-09-25 00:33 UTC and 2026-09-25 00:33 UTC may need a replay.

• Subscribe to OpenRouter's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=openrouter works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Root cause

Root cause is still unknown.

Updates from OpenRouter 1

1. resolvedSep 25, 2026, 12:33 AM UTC

   Sep 25, 00:33 UTC Resolved - The issue is now resolved. Root cause was identified as an authentication issue on the Meta Developer API Platform impacting all Managed Meta Accounts including OpenRouter's. Sep 24, 23:46 UTC Monitoring - Meta Provider API calls are operational again. We are continuing to monitor. Sep 24, 23:28 UTC Monitoring - The Meta team has begun applying remediations and success rate is improving. Root cause is still unknown. Sep 24, 23:15 UTC Identified - The Meta team is continuing to investigate and is beginning work on remediation. Root cause is still unknown. Sep 24, 22:55 UTC Investigating - The Meta team has been pinged and is investigating.

   provider

Corrections

None so far.

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