a month ago
My Node.js service cannot make outbound HTTPS calls to api.anthropic.com. I get a "Connection error" at Anthropic.makeRequest on every attempt. Works perfectly locally. API key is valid with $19 credits. I'm on the Hobby plan.
Project: resplendent-gratitude
Service: future-proof-marketing
Repo: github.com/FinnShortman/future-proof-marketing
Error in logs:
Error handling message: Connection error. Error: Connection error.
at Anthropic.makeRequest (/app/node_modules/@anthropic-ai/sdk/core.js:337:19)
at async generateReply (/app/claude.js:41:20)
Local environment works fine. Railway deployment fails 100% of the time. Please check if outbound HTTPS is being blocked on this service.
Pinned Solution
a month ago
okay can you run this inside your railway service via railway cli ssh:
curl -v https://api.anthropic.com
that command will show where the connection is dying
6 Replies
Status changed to Open Railway • 28 days ago
0x5b62656e5d
Try enabling IPv6 outbound in your service settings.
a month ago
Thanks, already tried enabling Outbound IPv6 in service settings and redeployed — same connection error persists. The error is specifically at Anthropic.makeRequest in the SDK, suggesting the TCP connection to api.anthropic.com is being refused or timing out before any response.
a month ago
Hello finnshortman,
what version of @anthropic-ai/sdk are you on and does the error happen instantly or after a timeout?
domehane
Hello **finnshortman,** what version of `@anthropic-ai/sdk` are you on and does the error happen instantly or after a timeout?
a month ago
Hi, SDK version is @anthropic-ai/sdk 0.39.0. The error happens instantly — same timestamp as the incoming message, no timeout delay. The error is: 'Connection error. Error: Connection error. at Anthropic.makeRequest (/app/node_modules/@anthropic-ai/sdk/core.js:337:19)'. Works perfectly locally, fails 100% of the time on Railway.
a month ago
okay can you run this inside your railway service via railway cli ssh:
curl -v https://api.anthropic.com
that command will show where the connection is dying
domehane
okay can you run this inside your railway service via railway cli ssh: `curl -v https://api.anthropic.com` that command will show where the connection is dying
a month ago
Legend! The SSH diagnostic was the key — found 3 hidden newline characters appended to my Anthropic API key in Railway's variables. Deleted the key, generated a new one, pasted it clean and it works perfectly. Thanks so much for your help!
Status changed to Open brody • 26 days ago
Status changed to Solved brody • 26 days ago