7D price · CoinGecko market data.
| Exchange | Pair | 24h Volume | Spread | Trust | |
|---|---|---|---|---|---|
| Argus |
| CRA/0X3600…00000 |
| $427.59 |
| 0.62% |
| – |
Top 1 exchanges by 24h trading volume. Block Insider earns affiliate commission from some exchanges listed here. Placement does not affect editorial.
CRA AGENT is an open-source payment rail that lets AI agents pay for the services they use, on Arc, Circle's USDC-native Layer 1. It implements the x402 HTTP payment standard: when an agent requests a paid API and the server answers 402 Payment Required, CRA AGENT reads the price and terms, checks the spending policy configured by the operator, verifies the seller, signs a USDC payment settled by Circle Gateway, retries the request and writes a receipt to a ledger.
It ships as an MCP server, so any LLM client can use it as a tool, and as TypeScript libraries published on npm under the MIT license. Two payment rails are supported: gas-free batched nanopayments for pay-per-call APIs, and ERC-8183 escrow for larger jobs with an evaluator.
On the selling side, two lines of code put a price on an API route and receive USDC on Arc.
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