API Error (503 no healthy upstream)

Resolved 💬 27 comments Opened Jun 12, 2025 by timyal Closed Jun 12, 2025
💡 Likely answer: A maintainer (igorkofman, collaborator) responded on this thread — see the highlighted reply below.

I checked the status of Claude Code and it seems up and running. I even used private VPN to check from different locations with the same result;

API Error (503 no healthy upstream) · Retrying in 1 seconds… (attempt 1/10)
⎿ API Error (503 no healthy upstream) · Retrying in 1 seconds… (attempt 2/10)
⎿ API Error (503 no healthy upstream) · Retrying in 2 seconds… (attempt 3/10)
⎿ API Error (503 no healthy upstream) · Retrying in 4 seconds… (attempt 4/10)
⎿ API Error (503 no healthy upstream) · Retrying in 10 seconds… (attempt 5/10)
⎿ API Error (503 no healthy upstream) · Retrying in 16 seconds… (attempt 6/10)
⎿ API Error (503 no healthy upstream) · Retrying in 36 seconds… (attempt 7/10)
⎿ API Error (503 no healthy upstream) · Retrying in 38 seconds… (attempt 8/10)
⎿ API Error (503 no healthy upstream) · Retrying in 38 seconds… (attempt 9/10)
⎿ API Error (503 no healthy upstream) · Retrying in 38 seconds… (attempt 10/10)
⎿ API Error: 503 no healthy upstream

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27 Comments

usernamegege · 1 year ago

503is the universal errors for not being able to accept connections and i searched it up and it basicly just means the servers are overloaded

timyal · 1 year ago

Thank you. But it seems it is not effecting everyone...

VenoMexx · 1 year ago
I checked the status of Claude Code and it seems up and running. I even used private VPN to check from different locations with the same result; API Error (503 no healthy upstream) · Retrying in 1 seconds… (attempt 1/10) ⎿ API Error (503 no healthy upstream) · Retrying in 1 seconds… (attempt 2/10) ⎿ API Error (503 no healthy upstream) · Retrying in 2 seconds… (attempt 3/10) ⎿ API Error (503 no healthy upstream) · Retrying in 4 seconds… (attempt 4/10) ⎿ API Error (503 no healthy upstream) · Retrying in 10 seconds… (attempt 5/10) ⎿ API Error (503 no healthy upstream) · Retrying in 16 seconds… (attempt 6/10) ⎿ API Error (503 no healthy upstream) · Retrying in 36 seconds… (attempt 7/10) ⎿ API Error (503 no healthy upstream) · Retrying in 38 seconds… (attempt 8/10) ⎿ API Error (503 no healthy upstream) · Retrying in 38 seconds… (attempt 9/10) ⎿ API Error (503 no healthy upstream) · Retrying in 38 seconds… (attempt 10/10) ⎿ API Error: 503 no healthy upstream

+1

Abdelbasset193 · 1 year ago

<img width="599" alt="Image" src="https://github.com/user-attachments/assets/fbbd7a4a-392b-4c73-b617-e178726050fc" />
i have the same issue

bitflorist · 1 year ago

+1

vrogojin · 1 year ago

Same here. Calude code getting 503 error on all my machines

bennniii · 1 year ago

+1

Myasinkz · 1 year ago

+1

reroro1 · 1 year ago

+1

arethefreshest · 1 year ago

+1

preet665 · 1 year ago

+1

anubissbe · 1 year ago

+1

hadibuxm · 1 year ago

+1

bjost2s · 1 year ago

+1

samuel-6 · 1 year ago

+1
Same error

FarHard112 · 1 year ago

+1

hadibuxm · 1 year ago

+1

lpalm · 1 year ago

+1

mhafidz · 1 year ago

+1

mvcsouza · 1 year ago

+1

ivanpaulovich · 1 year ago

+1

zalezuna · 1 year ago

+1

guennix1 · 1 year ago

+1

runnerr0 · 1 year ago

+1 sames...

igorkofman collaborator · 1 year ago

Hey folks, there was a broad GCP outage that impacted the Anthropic API and by extension Claude Code.
It is fully resolved now.

trillox9 · 1 year ago

I’ve been having problems for days

github-actions[bot] · 11 months ago

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.