Open-source AI gateway

One endpoint for every open model.

OpenAI-compatible access to open-weight models — Llama, Qwen, DeepSeek, Mistral and more. Bring your key, point your SDK, ship.

  List models
curl https://preview.vx-build.ai/v1/models \
  -H "Authorization: Bearer vxb_your_key"

Services

What's live now — and what's coming.

Model Catalog

Live

Curated open-weight models, OpenAI-compatible.

Chat Completions

Beta

Streaming chat across open models. Bring your key.

MCP Server

Soon

Connect agents over the Model Context Protocol.

API Keys & Dashboard

Soon

Self-serve keys, usage and limits.

Credits & Billing

Soon

Pay-as-you-go, powered by Stripe.

Docs & SDKs

Soon

Guides and drop-in OpenAI SDK examples.