ClawRouter

         

ClawRouter is an open-source smart LLM router that reduces AI API costs by up to 84%. It analyzes each request across 15 dimensions and routes to the cheapest capable model in under 1ms, entirely locally. It is the only LLM router that an autonomous agent can pay for by itself — a wallet signature is the account, and USDC micropayments over the x402 protocol are the billing — and it takes an ordinary credit card too: sign up at user.blockrun.ai, top up, and run the same router on an API key. 91 models from OpenAI, Anthropic, Google, xAI, DeepSeek, and more. MIT licensed.

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What BlockRun is

BlockRun lets agents pay for the outcome — every LLM, tool and data source, best value per dollar.

Not a seat, not a subscription, not a monthly minimum you keep paying while the agent idles. An agent asks for one thing — an answer, an image, a transcript, a price, a call placed — and pays for that one thing at the moment it happens. Nothing to sign up for, nothing to cancel.

Every LLM	91 chat models across 9 providers, behind one endpoint and one balance
Every tool	12 image models, 7 video models, music, 5 voices, img2img editing, and outbound phone calls that come back as transcripts
Every data source	web, news and neural search; prediction markets; live crypto and equity quotes; on-chain SQL over 100M+ labeled wallets; DEX routing; RPC across 40 chains
Best value per dollar	15-dimension local routing sends each request to the cheapest model that can actually do it — 84% below pinning Claude Opus 5 on the same traffic, computed from a published workload mix rather than estimated

ClawRouter is how an agent reaches it. BlockRun is the gateway and the billing; ClawRouter is the MIT-licensed router that runs on your machine, decides which model each request deserves, and settles the bill — a wallet signature in USDC, or a credit-card-funded API key. The rest of this README is about ClawRouter.

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Why ClawRouter exists

Every other LLM router was built for human developers — create an account, get an API key, pick a model from a dashboard, pay with a credit card.

Agents can't do any of that.

ClawRouter is built for the agent-first world:

This is the beginning of the README. Read the rest at the original. Read the full README ↗