Circle Gateway on BlockRun: many calls, one settlement
nano.blockrun.ai serves the full BlockRun catalog with Circle Gateway batched USDC nanopayments: per-call x402 pricing, settled in batches on the EVM chains Gateway supports.
How it works
Per-call payments are the right unit for an agent and the wrong unit for a chain. Circle Gateway lets many x402 payments collapse into one on-chain settlement, so the agent still pays per request and the chain sees a batch. BlockRun's nano gateway is that product: the same models and routes, settled through Gateway.
It runs on its own host with its own manifest listing every accepted chain as a CAIP-2 id. For a buyer the difference is invisible at call time; for anyone reading the chain it is the reason transaction counts fall while settled dollars do not.
Behind it is the BlockRun catalog: 78 chat models plus image, video, music and speech generation, search, market data and multi-chain RPC, priced per call. 6 open-weight models are free and need no wallet.
Setup
1. Base URL
https://nano.blockrun.ai/api/v12. Discover accepted chains
curl https://nano.blockrun.ai/.well-known/x402 | jq '.endpoints[0].networks'Questions
- Is pricing different on nano?
- No — the catalog and per-call prices are the same; batching changes how settlement lands on-chain, not what a call costs.
- Which chains?
- The EVM chains Circle Gateway supports, listed in the nano manifest's networks array.