DownForAI
←View full Thinking Machines Lab status

Thinking Machines Lab: Authentication Failed / Invalid API Key

Current Status: Major Outage
Last checked: 6m ago

What We're Seeing Right Now

No recent issues reported. If you're experiencing problems with Thinking Machines Lab, report below to help the community.

What is this error?

An authentication error from Thinking Machines Lab means your API key, token, or login credentials were rejected. This can happen when keys expire, are misconfigured, or when Thinking Machines Lab's authentication service itself is having problems.

Error Signatures

401 Unauthorized403 ForbiddenInvalid API keyAuthentication failedInvalid authenticationIncorrect API key providedinvalid_api_keypermission_deniedAPI key not foundYour account has been disabled

Common Causes

  • API key is invalid, expired, or revoked
  • Wrong API key for the organization or project
  • Environment variable not set or set incorrectly
  • Billing issue — account suspended due to payment failure
  • Thinking Machines Lab's authentication servers are experiencing issues

✓ How to Fix It

  1. Verify your API key is correct — regenerate it from Thinking Machines Lab's dashboard if needed
  2. Check that the key is assigned to the right organization/project
  3. Ensure the environment variable (OPENAI_API_KEY, ANTHROPIC_API_KEY, etc.) is properly set
  4. Check your billing status — overdue payments can disable keys
  5. If using OAuth/SSO, try logging out and back in
  6. Check this page — if others report auth issues, it may be a Thinking Machines Lab-wide problem

Live Signals

Service Components
TML API
Operational

Recent Incidents

No incidents in the past 30 days

Frequently Asked Questions

Why is my Thinking Machines Lab API key not working?
The most common cause is an expired, revoked, or misconfigured key. Regenerate your key from Thinking Machines Lab's dashboard and make sure it's correctly set in your environment.
Is Thinking Machines Lab authentication down?
Check the community reports below. If multiple users report 'Login Issues' at the same time, Thinking Machines Lab's auth system may be having problems.
How do I fix Thinking Machines Lab 401/403 errors?
Follow the step-by-step guide above. Most auth errors are fixed by regenerating your API key and checking your billing status.

Related Pages

📊 Thinking Machines Lab Status Dashboard❓ Is Thinking Machines Lab Down?
Other Thinking Machines Lab issues:
🔍 All LLM Services