[Bug] Anthropic API Error: credit_balance_too_low despite sufficient account credits

Hitting the same. Request IDs: req_011CaZMrWi1fpvrPD7TCyJt2 (and others).
Workspace has $35 balance, two paid invoices, $0 spend used, Tier 1 limits,
fresh API key. Direct curl to api.anthropic.com returns same error.

<img width="571" height="487" alt="Image" src="https://github.com/user-attachments/assets/9711920b-d88e-4f73-83b6-069fb9b46dba" />

same problem

Same!!! That's critical. We've got projects to run.

+1 same symptom on a fresh workspace, rotated multiple api keys and made two payments just in case.

Setup:

• Single Anthropic workspace, single API key
• Funded $20 today (2026-04-29)
• $0 of monthly spend used; spend limits look correct in console
• Tested with two separately-rotated keys — both reject identically

Diagnostic data:

• Request ID: req_011CaZJP8Uh4wJ7F8USUmKwt
• Anthropic-reported org ID: 18a8a9fd-… (masked, available on request)
• /v1/models with the same key: HTTP 200, returns full model list (so auth + workspace are fine)
• /v1/messages with max_tokens: 50 and a 2-token prompt: HTTP 400 credit_balance_too_low

Curl that reproduces it:

curl "https://api.anthropic.com/v1/messages" \
  -H "x-api-key: <fresh key from funded workspace>" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{"model":"claude-sonnet-4-20250514","max_tokens":50,"messages":[{"role":"user","content":"reply ok"}]}'

The rejection is at Anthropic's billing edge (x-envoy-upstream-service-time: 125ms) — never reaches the model. Confirms the OP's "billing apply disconnect" hypothesis.

Same issue here. Added $15 in credits but still stuck.

Same here

<img width="1127" height="578" alt="Image" src="https://github.com/user-attachments/assets/5cc509a2-347b-4355-939f-b9a8bffac8e7" />

+1 — same issue, blocked since 12h after Stripe settlement.

• Single Default workspace, single active key (fingerprint 4729104f), Tier 1
• Console: $30.00 balance + valid grant (exp May 1, 2027); spend $0.00 of $100/mo
• Banner "To get started... purchase some credits" rendering on the same page as the $30 balance — same billing-vs-auth desync described above
• 400 credit_balance_too_low on every call, including max_tokens=1 smoke test
• Request IDs: req_011CaZEjPiZoTXZCFNDKnZEU, req_011CaZDWucBHCPTJgq9crBBC
• Support conversation: 215474119448976 (auto-closed by Fin overnight, re-escalated via email)

Issue seems to be resolved guys. Not sure what exactly changed but my api calls are going through now.

Issue seems to be resolved guys. Not sure what exactly changed but my api calls are going through now.

I'm still having the issue.

I'm not sure either, but I've had the error for ~12 hours, kicked off an AI help conversation with them this morning, and then in the middle of that I did a hard cache refresh in my browser and somehow one of those things seemed to have fixed it? Seems to have been something in those actions because it went from "To get started with the Claude API, purchase some credits." to totally fine within two refreshes of the page within like a minute or two. Spooky AI at a distance, maybe.

Problem resolved. Mine is now working.

Seems to be resolved for me. I had to delete my key and create a new one.

same here: authenticated key, no usable balance for inference. Hard refresh did not clear it.

Same Heree!!! Paid invoice #2AE8C19E-0029 ($50 + $10 VAT) on May 1, 2026 via Link by Stripe. Console shows $50 balance with valid credit grants expiring 2027, but the red banner “To get started with the Claude API, purchase some credits” persists and API requests are blocked.
Not my first purchase — long history of paid invoices on this account. Issue persists across browser refresh and new API keys. Looks identical to GitHub issue #54839.
Support ticket already submitted. Please prioritize — this is blocking production work.

Seems to be resolved for me. I had to delete my key and create a new one.

Resolved for me as well. Also, just got this email from Anthropic:

"Hi,
You may have experienced a brief disruption to Claude API after purchasing credits. Here's what happened and what we've done.
Between approximately 7:00 AM PT on April 29, 2026 and 8:00 AM PT on April 30, 2026, some new API organizations were unable to make requests after purchasing credits. While these organizations’ balances were correct, our system incorrectly blocked requests as if the account had no credits available. We've fixed the issue and restored access to your account. Your purchased credits remain available, and no action is needed on your end.
We apologize for any disruption this may have caused, especially as you're just getting started. Happy building with Claude!
The Anthropic Support team"

I have the same issue. How did you reach the support?
RequestID: req_011CacjihMaAcYs5gdwUFEbq

<img width="1905" height="764" alt="Image" src="https://github.com/user-attachments/assets/45a8e95b-e0a2-4bc0-831a-6e05e4c5b784" />
Same here.

I have exactly the same issue. The issue just started within the last 24 hours.

I have the same issue. How did you reach the support? RequestID: req_011CacjihMaAcYs5gdwUFEbq

https://support.claude.com/en/

Just click the chatbox icon. However, they take a long time to reply. From what I can tell, this is happening with all new Claude Console accounts. Waiting a few hours or even a couple of days will probably help, and they should also send you an email once it’s fixed. Apparently, they’re applying manual, case-by-case fixes instead of addressing the root cause of the issue, which sucks.

Seems like a genius idea to cause people to panic and buy more credits.

jesus come on dario what is going on

are you guys pulling an Uber, you guys are pulling an Uber pre IPO aren't ya

Experiencing the same problem on my account currently

I bought some credits yesterday and thought the site was just being slow. Still unable to use them.

I bought some credits yesterday and thought the site was just being slow. Still unable to use them.

same here... I bought it around 24 hours ago, still not usable

I have the same issue,

same, bought credits and unable to use