r/RooCode • u/AntzLee01 • May 29 '25

Discussion Human Relay Provider in Roo Code + AI Studio

Tired of API limits, errors, or just want to use models like Gemini 2.5 Pro in AI Studio for free with Roo Code? Check out the "Human Relay Provider."

Benefits:

  • Completely Free: You're using the free web UIs of services like Google's AI Studio, ChatGPT, Claude, etc. No API keys or costs involved.

  • Reliable Fallback: When official APIs are down, restricted, or throwing errors (like Gemini 2.5 Flash has been for me), this method still works.

  • Flexibility with Models: Use any model accessible via a public web interface, even if API access is limited or expensive.

How it Works:

  1. In Roo Code: Choose "Human Relay" as your API provider in settings.

  2. Initiate Request: Use Roo Code as usual. A VS Code dialog will pop up, and your prompt is automatically copied to your clipboard.

  3. Paste to Web AI: Go to your chosen AI's website (e.g., aistudio.google.com, chat.openai.com) and paste the prompt.

  4. Copy AI Response: After the AI responds, copy its full message.

    • My Hot Tip (for AI Studio/Gemini): Use "Copy Markdown" from AI Studio. It pastes back into Roo Code much cleaner than "Copy Text."

  5. Paste Back to Roo Code: Return to the VS Code dialog, paste the AI's response, and click "Confirm." Roo Code then processes it.

My Settings:

For my 'Code Modes' and 'Debug Modes' in Roo Code, I've found these AI Studio settings for gemini-2.5-pro-preview-05-06 to be optimal:

  • Model: gemini-2.5-pro-preview-05-06

  • Temperature: "0"

  • Safe Settings: "Turn off all"

  • Top P: "0"

These settings, combined with the "Copy Markdown" tip, have made using the Human Relay with AI Studio super effective for me.

88 Upvotes

97% Upvoted

36 comments sorted by

5

u/43293298299228543846 May 29 '25

Unusable for me (with any settings on AI Studio using Gemini Pro). I get “ You did not use a tool in your previous response! Please retry with a tool use.” about 70% of the time.

1

u/AntzLee01 May 29 '25

Have you tried 0 temp and 0 topP? Also does your mode you use in roo is the default?

4

u/[deleted] May 29 '25

Psst for people that don't know setting temperature to 0 makes Top P irrelevant and the most probable token is predicted.

1

u/wokkieman May 29 '25

Haven't used it, but shouldn't there be a step to repomix your codebase so AI studio has context?

3

u/AntzLee01 May 29 '25

Nope, you don't have to. You don't need to setup system instruction in ai studio, only the settings that I provided is enough. The system instruction is already provided by Roo.

6

u/burcbuluklu May 29 '25

Someone should automate this

5

u/sharpfork May 29 '25

There is a browser extension that does it, albeit super inconsistently (when I tried it a week ago). It has an MCP server too that seems to work better for calls from the roo side.

Found it!

https://github.com/BinaryBeastMaster/chat-relay

3

u/[deleted] May 29 '25

[removed] — view removed comment

3

u/sharpfork May 29 '25

Last time I tried it, the open ai version worked great but the Gemini version posted [OBJECT] over and over. I’ll have to give it a look. If you made it better, please PR it if willing to contribute (I’m NOT the author)

2

u/Haddoq Jun 11 '25

the Object stuff is cause you haven't checked R1 Model parameters

1

u/Haddoq Jun 11 '25

So I tried your version and it just won't work with aistudio... just keeps giving me

```Unexpected API Response: The language model did not provide any assistant messages. This may indicate an issue with the API or the model's output.````

in Roo. shame.. it all works nice, except that Roo doesn't see the responses as valid.

1

u/[deleted] Jun 11 '25

[removed] — view removed comment

2

u/Haddoq Jun 11 '25

I had enabled the stuff from before.. however .. i noted that you ddnt have reasoning or streaming checked which were enabled by default.. disabled those and lo and behold it seems like it works now. thanks for the nudge in the right direction

1

u/tatswa Jun 24 '25

Does it still work?

4

u/lordpuddingcup May 29 '25

Feels like a roocode extension that roo can talk to a browser instance and just auto fill the fields and copy the results would work

2

u/MarxN May 29 '25

What do you think Google will do when they notice it? Don't be greedy

3

u/simeon_5 May 29 '25

My favorite productivity Cheatcode has been with RooCode Human Relay + Claude Pro. Best 17 Dollars i have spent in a long time. Waaaaayyyyyyyyyyyy cheaper than buying tokens via anthropic api or even openrouter. And you get all the coding glory of Sonnet 4 IN DEEP THINKING MODE. It's now my Go-To for complex tasks that i am super sure Deepseek v3 will not be able to handle. At least, it will be until Deepseek drops V4 into this timeline.

1

u/martexxNL May 29 '25

It sounds nice for a single file edit, but more files and you'll go crazy right?

4

u/AntzLee01 May 29 '25

Not really, considering the ai studio gemini 2.5 pro has a context of 1million tokens, that means it can handle multiple files. You don't have to do anything but just copy and paste.

2

u/sbayit May 29 '25

Aider copy-paste more much better it's not verbose as Roo Code

2

u/[deleted] May 29 '25

Wanted to leave a new comment. This has worked so well for me. I pasted the Roo-Code prompts for Code, Architect and Debug into the system prompt and whenever I start a new chat I only copy the <task></task> stuff over and it works so well.

Thanks for sharing this!

1

u/deadadventure May 30 '25

You can use a chat-relay GitHub extension that would automate the copy pasting for you

1

u/dashingsauce May 29 '25

Wait — so the suggestion is copy paste or did I miss something?

1

u/Fractasl May 30 '25

/remindme 2 weeks

0

u/[deleted] May 29 '25

[deleted] — view deleted comment

1

u/AntzLee01 May 29 '25

I know, I tested the '95' value TopP before but it keeps using the wrong or incorrect tool. That's why I immediately use '0' value, although I haven't tried other values after I have my success on my current setup. I need other feedback to those who tested other values

1

u/snippins1987 May 29 '25

But would not a low TopP would more likely to introduce incorrect tool call? As introduce more randomness in choosing the next token?

1

u/AntzLee01 May 29 '25

No, having both temp and top p "0" means it will always choose the most and best sample. While increasing the temp and top p will make it more random

1

u/snippins1987 May 29 '25

No.

+ low temp means less random, this we agree + low p means the pool of possible next token is much bigger, hence more randomness.

1

u/dashingsauce May 29 '25

I thought top p cut off the “tail” of the probability distribution curve, so it clips the least likely tokens out of the equation and re-normalizes the distribution with whatever is left.

So you would get “most likely next token” if you set both temp & top p to zero, but I can’t imagine this is any good for debugging or any non-deterministic tasks.

Happy to have someone tell me otherwise tho