Alternatives to AnyAPI

Predibase: managed fine-tuning and multi-LoRA serving for open-source LLMs, now inside Rubrik.

A browser canvas where you assemble the context an AI writes from, instead of retyping a prompt box.

Open-source JavaScript library that runs small LLMs like Llama 3.2 1B Instruct inside the browser via WebAssembly and WebGPU.

OpenAI Cookbook delivers free, MIT-licensed Python notebooks and guides for building with the OpenAI API.

Open-source TypeScript AI SDK for streaming AI apps and agents across 100+ models with built-in fallbacks

Visual low-code canvas for building AI agents, RAG pipelines, and MCP servers, deployable as an API or self-hosted.

Outlines enforces structured LLM output during decoding, so JSON, regex, and grammar-constrained generations come back valid on the first

Dify is an open-source visual builder for agentic workflows and RAG pipelines, deployable on cloud, VPC, or self-hosted Docker.

Guidance is an open-source Python library for constrained LLM generation with regex, context-free grammars, and inline control flow.

Open-source, self-hosted AI assistant and agent framework with unified model routing, a full RAG chain, and local/remote MCP tooling.

OpenUI turns AI agent responses into streaming, interactive UI built from your own component library.

PrivateGPT is the open-source on-premise RAG framework for local document Q&A — 57k GitHub stars, zero cloud calls.

Open-source Java library that tokenizes text with OpenAI's BPE encodings so you can count, encode and decode locally

Open-source Python package for building conversational AI apps with a production-ready chat UI, auth, and persistence.

Mellea turns type-annotated Python functions into validated, testable LLM calls with token-level constrained decoding.

Go SDK for AI apps: one type-safe API for text generation, streaming, tools and MCP across 25+ LLM providers.

Open-source (MIT) MCP testing and full-stack MCP App framework for building ChatGPT Apps and Claude Connectors from one React codebase.

A headless React hooks library that runs Vicuna-13B chat entirely in your browser via WebGPU, with no prompt or completion leaving the client.

RubyLLM is the Ruby-native AI framework: 19 providers, one API for chat, agents, tools, and RAG.

xsAI is an extra-small, OpenAI-compatible AI SDK for JavaScript and TypeScript — 13 KB gzipped with every package included.

Open-source Ruby gem giving one unified API across Anthropic, DeepSeek, Google, Mistral, Llama, and OpenAI

MIT-licensed Swift package for calling the OpenAI API with native async/await and Combine on Apple platforms.

Open-source Ruby gem that calls 11 LLM providers through one consistent interface for embeddings, completions, and chat.

Open-source Python library for loading, fine-tuning, and running transformer models across text, vision, audio, and video.

Ruby gem for running open source LLMs locally through Ollama's API, with streaming, embeddings, and token tracking built in.

A Seoul studio that builds you a free working app prototype in about 10 minutes, then quotes the build.

Open-source Rust tokenization library for training BPE, WordPiece and Unigram vocabularies at production speed.