MOMO
Free forever · your own AI

Build your AI key stack

Start with one key, then add a key from a different provider in Settings. MOMO tries them in your saved order, so questions, learning games and mock marking can continue when one provider is busy or rate-limited. Your keys leave your browser only inside your own HTTPS requests and are never stored on our servers.

Why use more than one?

1 · Fewer interruptions

If your first provider reaches its rate limit or has an outage, MOMO automatically tries the next saved key.

2 · Separate allowances

Different providers have separate limits. Two keys from the same provider or account may still share one allowance.

3 · You stay in control

Reorder or remove keys at any time. MOMO never falls from your personal stack onto shared keys silently.

Recommended: Groq first for speed, then OpenRouter, Gemini, GLM, Cerebras or Mistral as a backup. One key is still enough to begin.

Groq

Recommended · free

The fastest option (Llama 3.3 70B at hundreds of tokens per second). Free tier is generous and needs no card. Also powers page-image OCR and podcast voices.

  1. Go to console.groq.com and sign up (Google account works).
  2. Open API Keys in the left menu → Create API Key.
  3. Name it "momo", copy the key (starts with gsk_).
  4. In MOMO Settings: choose Groq, paste, Test key, then Add to stack.

Prefer pictures? The 4-step visual guide on Instagram →

OpenRouter

Free models

One key, dozens of models — the ones tagged :free cost nothing. Good backup if a provider is busy.

  1. Go to openrouter.ai and sign in (Google/GitHub).
  2. Click your avatar → Keys → Create Key.
  3. Copy the key (starts with sk-or-).
  4. In Settings: choose OpenRouter, paste, test, then add it after Groq. Leave the default model blank.

GLM (Z.ai)

Free tier

Zhipu's GLM models with a free tier — a solid alternative when you want a second free key.

  1. Go to z.ai (Zhipu open platform) and create an account.
  2. Open the API Keys page from your profile menu.
  3. Create a key and copy it.
  4. In Settings: choose GLM / Z.ai, paste, test, then add it to the stack.

Google Gemini

Free tier

Uses your Google account. Bonus: a Gemini key also gives you the best podcast voices (multi-speaker TTS) on your own quota.

  1. Go to aistudio.google.com and sign in.
  2. Click Get API key → Create API key.
  3. Copy the key (starts with AIza).
  4. In Settings: choose Google Gemini, paste, test, then add it to the stack.

Common questions

Is this safe? Keys are saved only in this browser (localStorage). Each request carries the ordered stack over HTTPS; MOMO uses it for that request, never logs or stores it, and never displays the secret in your saved list.

Will I be charged? Use providers' free plans without enabling paid billing. Provider allowances and terms can change, so check each provider's dashboard; MOMO cannot create charges by itself.

Which setup should I pick? Groq as primary plus one different provider as backup. OpenRouter or Gemini are simple second choices. Add a third only if you use AI heavily.

What if a key stops working? MOMO moves to the next saved provider automatically. Use Test key in Settings to diagnose or replace the failed one.