BYOK · Custom API

Your keys, your models
60+ providers, swappable anytime

Drop in the API keys you already own: OpenAI, Anthropic, Gemini, DeepSeek, xAI, plus any OpenAI- or Anthropic-compatible endpoint or self-hosted relay. Keys are AES-encrypted on device, requests go straight to the provider, you pay provider prices — the app never sees your key.

  • AES-encrypted · on-device only
  • Direct-to-provider requests
  • Text / image / speech / video routed separately
Phone · Models & services
Bring your own provider keys
  • OpenAI
  • Anthropic
  • Gemini
  • Vertex AI
  • xAI
  • DeepSeek
  • Mistral
  • Meta · Llama
  • Cohere
  • Groq
  • Together AI
  • Fireworks
  • Replicate

Key in, ping tested, models toggled — thirty seconds

Switch providers on the left; paste the key, hit “Test” for a real round-trip latency, filter models by modality, and set defaults on the right. This iPad is a live prototype — every step is tappable.

Concept workbench · web demo (not the current Android tablet UI)

BYOK's security boundary, spelled out

  • On-device onlyKeys are AES-encrypted in secure storage on your phone — the app never uploads, logs, or sends them in telemetry.
  • Direct to providerRequests leave your phone for the apiHost you configured. No resale proxy in between; you pay provider list price.
  • Versioned endpointsapiHost carries the full version prefix, so any OpenAI / Anthropic style endpoint or self-hosted gateway works.
  • Transparent usageEvery request logs model, tokens, cache hits and cost into the API request record for audit anytime.

What “list price” means in numbers: the LLM API pricing table holds input / output / cache-read prices for 1,300+ models across 30 providers, and the AI reading cost calculator turns them into per-continuation and per-audiobook spend.

FAQ

Common questions

Which providers and endpoints are supported?

60+ presets including OpenAI, Anthropic, Google Gemini, DeepSeek, xAI, Mistral, Groq; any OpenAI- or Anthropic-compatible endpoint (including one-api / new-api relays) can join as a custom provider.

Is my API key ever uploaded?

No. Keys are AES-encrypted in on-device secure storage and requests go directly to the provider — Foreverse servers never touch your key.

How do I know a model actually works?

Every provider page has a Test button that probes the upstream directly, with distinct results for connected / invalid key / wrong host path / unreachable. Model lists support bulk-import from the provider, manual adds and removal, and default models are set per slot across text / vision / image / voice / video / embedding.

Can I use it without my own keys?

Where the official metered channel is available: built-in models bill per use (1 credit = $0.0001), and you can start official then switch to BYOK with your data intact. In builds/regions without it, bring your own key first.

Now on Google Play

Bring your own keys and take back the model choice.

The Android app is live on Google Play; for iOS Early Access we send one short note when the next wave opens. You can also email [email protected].

Early access

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