Stip

spend policy for software

Humans authorize a USDC budget. Software spends it. APIs charge via HTTP 402 (x402). Stip does not take custody of principal.

Live on Avalanche C-Chain and Base

We paid Tavily $0.01 USDC on Base for a live search. 0x68f2…5b65

How it works
  1. An operator pays 20 USDC per month on Avalanche C-Chain and sets a policy: which agent may spend, daily and per-transaction caps, an allowlist of payTo addresses, and an expiry.
  2. You send native Circle USDC to the agent EOA on Avalanche C-Chain or Base. Stip never holds that balance.
  3. When an API returns HTTP 402, the agent signs an EIP-3009 authorization. Native USDC goes to the seller on Avalanche C-Chain or Base. Stip records the spend against the policy. Revoke at any time.
Price

Operator seat: 20 native USDC / month on Avalanche C-Chain. Tills on Avalanche C-Chain and Base. Facilitator fee: 0.5% (floor 0.001 USDC, cap 0.25 USDC). The fee is not taken from principal.

Circle native USDC only. USDC.e and USDT are rejected. No cards, no custody of the agent's funds.

Open the operator desk

Agent skill · Charge an API · Terms