API key expired

[muhammadolammi]

i use an api key from both https://aistudio.google.com/app/api-keys and google cloud and everytime i get this error Error 400, Message: API key not valid. Please pass a valid API key., Status: INVALID_ARGUMENT, Details: [map[@type:type.googleapis.com/google.rpc.ErrorInfo domain:googleapis.com metadata:map[service:generativelanguage.googleapis.com] reason:API_KEY_INVALID] map[@type:type.googleapis.com/google.rpc.LocalizedMessage locale:en-US message:API key not valid. Please pass a valid API key.]] this key is valid and a premium key (i use it in langflow and it works fine). THIS IS how i create the agent package customagent

import (
"context"
"fmt"
"os"

"google.golang.org/adk/agent"
"google.golang.org/adk/agent/llmagent"
"google.golang.org/adk/model/gemini"
"google.golang.org/genai"

)

func GetAgent() (agent.Agent, error) {
ctx := context.Background()
model, err := gemini.NewModel(ctx, "gemini-2.5-flash", &genai.ClientConfig{
APIKey: os.Getenv("GEMINI_API_KEY"),
})

if err != nil {
	return nil, fmt.Errorf("failed to create model: %v", err)
}

customAgent, err := llmagent.New(llmagent.Config{
	
	Model:       model,
	
	Instruction: prompt(),
})
if err != nil {
	return nil, fmt.Errorf("failed to create agent: %v", err)
}

return customAgent, err

}
And I run it with the runner. It's definitely running, but every time it's saying the API KEY is expired. Is this an issue or a misconfiguration

[dpasiukevich]

The API key is used only to connect to GEMINI_API: source

Make sure that you did set it correctly: export GEMINI_API_KEY=... before running the agent.

Otherwise, if this doesn't help, try to verify genai SDK directly:

client, err := genai.NewClient(ctx, &genai.ClientConfig{
	APIKey:   apiKey,
	Backend:  genai.BackendGeminiAPI,
})

[muhammadolammi]

I did run make sure the env is present in my main function before running the server at all.
If its not present in env it fail

I can confirm the env value is loaded in run time too, the error is saying invalid not empty key.

I currently have Gemini Pro for student so that definitely isn't the issue.

[dpasiukevich]

To simplify the debug flow, try to run genai SDK directly https://github.com/googleapis/go-genai

To make sure if the issue is ADK or outside of it

client, err := genai.NewClient(ctx, &genai.ClientConfig{
	APIKey:   apiKey,
	Backend:  genai.BackendGeminiAPI,
})

[muhammadolammi]

Ohh the issue is gen Ai not adk , I tried using genai function directly same thing, I have tried a custom http requesting to gen Ai endpoint still the same. (I tried that after opening this ticket).
I actually seem lost, I already built this agent with langflow (a low code agent builder ) I use Google generative Ai there too ,but I prefer to own my code and run everything in go routine (light) reason I'm rewriting in golang.
But this issue is driving me nut lol , I suspect its something from Google maybe.

[adesinah]

@muhammadolammi I would generate a new key and see if that works! If you can't generate a new one, you might want to compare the key letter by letter.

Also, ensure the key isn't getting override by something somewhere in the code.

[muhammadolammi]

@muhammadolammi I would generate a new key and see if that works! If you can't generate a new one, you might want to compare the key letter by letter.

Also, ensure the key isn't getting override by something somewhere in the code.

man for me to open a discussion I have tried all, I printed the api key at the point before creating the model its not overrided.
Its confusing at this point, will just try tomorrow but this issue isn't straight forward at all.

And yes I created new key in Ai studio.

[adesinah]

Follow up on this, if you have GOOGLE_API_KEY set too, GEMINI_API_KEY would be ignored while GOOGLE_API_KEY would be used instead.
I really can't think of any other cause.

[muhammadolammi]

Tackled this just now. After further isolation, i found out something is setting GeminiApiKey above my own .env . Not bash.rc . so its definitely environment issue. Sorry for disturbing you guys, will close this now.

[jrglez2389-hub]

[muhammadolammi]

You should not be posting your API key here though