BYOAIK — Bring Your Own AI Key: a directory of AI tools that run on your own API key.

Mastra

Open-source TypeScript framework for building AI agents and graph-based workflows.

Website Source code

Category:

Agent Frameworks

Pricing:

Open Source

Open source:

Yes (Apache-2.0 (core); Mastra Enterprise License (enterprise add-ons))

Self-hostable:

Yes

Local-first:

Yes

Platforms:

Library/SDK, Self-hosted, Docker

AI providers (bring your own key):

OpenAI, Anthropic, Google Gemini, Azure OpenAI, OpenRouter, Groq, Mistral, DeepSeek, xAI Grok, Ollama, Together AI, Fireworks, Custom / OpenAI-compatible

API key storage:

User controls deployment

Key risk level:

LOW

Trust score:

93/100

Mastra is an open-source TypeScript framework for building AI agents, copilots, and graph-based workflows with human-in-the-loop, memory, RAG, evals, and observability. Created by the Gatsby team (YC W25), it reached v1.0 in January 2026 and integrates with React/Next.js/Node or deploys as a standalone Hono server. Its model routing connects to 90+ providers through one standard interface (built on the Vercel AI SDK plus Mastra's own model gateway), so developers supply their own provider API keys (typically via environment variables) for OpenAI, Anthropic, Gemini and many others. It supports configurable OpenAI-compatible base URLs and local models via Ollama, making BYOK first-class. The core framework is Apache 2.0; only enterprise add-ons are source-available under a separate license.

How your API key is handled

You self-host the app, so your API key lives in your own deployment. Requests are sent directly to the AI provider. Because it can be self-hosted, your key never has to touch a third-party backend.

Setup

Deploy it (Docker/compose), add your provider API key in the admin or environment config, then select models.