toolgrep / AI models & inference / OpenRouter
Alternatives to OpenRouter
OpenRouter: A unified API for every major LLM, with routing, fallbacks, and cost tracking across providers. 8 products similar to OpenRouter, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 8 of 8 have an API, 5 of 8 offer an MCP server, 3 of 8 are open source.
- onomeo
Free AI API and chat with one OpenAI-compatible key
- Bifrost
Open-source AI gateway for LLMs, MCP, and agents
- telemetry.dev
LLM observability for AI agents, built on OpenTelemetry
- LangWatch
Agent observability and evals platform for tracing, testing, routing and governing LLM calls
- Langfuse
Open Source Agent Evals & Observability
- Brave Search API
Web search API with an index of 40+ billion pages, including an LLM Context endpoint for agentic search.
- Gonka Broker
API to the Gonka decentralized GPU network for open-source LLM inference, compatible with OpenAI and Anthropic clients, billed in USD.
- Respan
The AI router with built-in observability & automated evals.
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| OpenRouter | Usage-based | yes | yes | yes | yes | — |
| onomeo | Freemium | yes | yes | no | yes | no |
| Bifrost | Freemium | yes | yes | yes | yes | yes |
| telemetry.dev | Freemium | yes | yes | no | yes | no |
| LangWatch | Freemium | yes | yes | yes | yes | yes |
| Langfuse | Freemium | yes | yes | yes | yes | yes |
| Brave Search API | Usage-based | yes | yes | yes | no | no |
| Gonka Broker | Usage-based | yes | yes | no | yes | — |
| Respan | Freemium | yes | yes | yes | yes | — |
Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.
API
curl https://toolgrep.com/api/products/openrouter/alternatives