OpenAI api error

Questions
1

Hi, I’ve created aiagent connected with openai. Eveyrthings worked smooth and suddenly I’ve started to getting errors. I don’t get it couse I didn’t change a thing. Has anyone had similar thing to handle?

{ “status”: 400, “headers”: { “access-control-expose-headers”: “X-Request-ID”, “alt-svc”: “h3=":443"; ma=86400”, “cf-cache-status”: “DYNAMIC”, “cf-ray”: “912769a6cfbf9255-FRA”, “connection”: “keep-alive”, “content-length”: “270”, “content-type”: “application/json”, “date”: “Sat, 15 Feb 2025 18:38:03 GMT”, “openai-organization”: “user-pptd61qax5uxim32aogfjoqw”, “openai-processing-ms”: “18”, “openai-version”: “2020-10-01”, “server”: “cloudflare”, “set-cookie”: “__cf_bm=VRt9ty4Ho1WJQzWR9W_L8XcRiWm2PaSTgETc9nv0d.Q-1739644683-1.0.1.1-m.DFDHwSl3EFCEz7doIlq0zs5irobTYE4.cWUbKsuBKrXretaiRLfP8XouaDFLcgDuwk3rQP85yRRTF9b…t1w; path=/; expires=Sat, 15-Feb-25 19:08:03 GMT; domain=.api.openai.com; HttpOnly; Secure; SameSite=None, _cfuvid=RJxO.QIw6_wf_h9bMQs.oRC_2kxRgViCQUQRhm5kEb4-1739644683460-0.0.1.1-604800000; path=/; domain=.api.openai.com; HttpOnly; Secure; SameSite=None”, “strict-transport-security”: “max-age=31536000; includeSubDomains; preload”, “x-content-type-options”: “nosniff”, “x-ratelimit-limit-requests”: “10000”, “x-ratelimit-limit-tokens”: “200000”, “x-ratelimit-remaining-requests”: “9999”, “x-ratelimit-remaining-tokens”: “199973”, “x-ratelimit-reset-requests”: “8.64s”, “x-ratelimit-reset-tokens”: “7ms”, “x-request-id”: “req_8d0b4831edd201ef0f926e81800b2b6a” }, “request_id”: “req_8d0b4831edd201ef0f926e81800b2b6a”, “error”: { “message”: “Invalid ‘tools[0].function.name’: string does not match pattern. Expected a string that matches the pattern ‘[1]+$’.”, “type”: “invalid_request_error”, “param”: “tools[0].function.name”, “code”: “invalid_value” }, “code”: “invalid_value”, “param”: “tools[0].function.name”, “type”: “invalid_request_error”, “attemptNumber”: 1, “retriesLeft”: 2 }

n8n-openai
n8n-openai1612×727 85.3 KB

  • n8n version:
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system:

  1. a-zA-Z0-9_- ↩︎

2

It looks like your topic is missing some important information. Could you provide the following if applicable.

  • n8n version:
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system:
3

yah ! i have same issuse

4

I have the same issue.

Trying to access gpt-4o-mini via an AI Agent. Super simple workflow. Just signed up to n8n today and using the cloud version on a Mac running MacOS Sequoia 15.3.1.

5

Seriously solve this problem. I see the same reply from n8n but no solution

6

Apparently the name you are using in your tools is not supported.

Open each tool and check their names.

Try to use names like these:

  • get_users
  • find_url
  • search_customer

Avoid special characters.

And if the name isn’t available inside the tool, try changing the name of the node itself.

1 Like
7

I have the same issue, I’m using last version of n8n, everything was working fine then this error, I verified the names and even changed them, but nothing changed

image
image1549×1170 114 KB

image
image1253×646 66.1 KB

You can see that the name is the same for the Openai tool that is giving the error.

I also made a new workflow just in case and started from scratch again and this is what I got.

8

This fixed it for me. Thanks @solomon

In my case, I had more than one MCP and it only worked when I removed one.

Screenshot_57
Screenshot_571500×608 43.5 KB

I changed the method names to the suggested ones and it worked.

My version is already 1.91.3

1 Like
9

That’s great, @Joao_Paulo_Arruda_Di :facepunch:
I’m glad it helped.

1 Like