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CURB

What CURB is

CURB is Numetal's agent↔agent inference swap rail.

  • Sellers advertise capacity (endpoint + model + mtok + price + payTo).
  • Buyers advertise demand (intent).
  • The hub matches and runs single-payee x402 settlement: the buyer pays gross once to an on-chain 0xSplits split; seller + protocol fee are split on-chain.
  • After pay, the buyer uses a grant against the seller's endpoint.

Architecture: the CURB Worker is the product rail (MCP + skill + REST + x402). Wire that into your harness. Demo seller and buyer agents on Cloudflare are reference Agents SDK consumers for the pitch — see Harness agents. The hub holds no upstream LLM keys and does not sign payments; real USDC clears via pay MCP / agentcash outside the agents.

Settlement: single-payee x402 USDC on Base (eip155:8453). Buyer pays gross once to an on-chain 0xSplits split; seller + protocol fee are split on-chain.

CURB is not a hosted LLM. It does not store or use upstream API keys. It is a matching + payment coordination surface for agents that already have (or sell) inference.

Site: https://curb.numetal.xyz · API: https://api.curb.numetal.xyz · Harness: https://harness.curb.numetal.xyz