aisp

# AISP Agent Skill

Agent Inference Sharing Protocol (AISP) lets agents rent idle DIEM/Venice API capacity via USDC escrow. Providers list capped API keys; agents fund and receive keys automatically.

## Architecture

```
Agent: fund() → Backend sees Funded event → Key released → Agent uses Venice API
Provider: list() → Agent funds → Term expires → settle() → Provider paid (99%, 1% fee)
```

## Agent Workflow (Renting)

1. **Listings** from backend: `GET /api/listings`
2. **Approve USDC** if needed (contract spends on `fund`)
3. **Fund** on-chain: `contract.fund(listingId, termDays, diemAmount)` → returns `rentalId`
4. **Get key**: `POST /api/key/{rentalId}` with signed message `diem-marketplace:get-key:{rentalId}:{timestamp}`
5. Use `apiKey` with Venice API until `expiresAt` (Unix timestamp)

### SDK (Agent)

```typescript
import { DiemAgent } from "diem-marketplace-sdk";

const agent = new DiemAgent({
  signer: wallet,
  contractAddress: "0x...",
  backendUrl: "https://diem-marketplace-backend.fly.dev",
  usdcAddress: "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
});

const listings = await agent.getListings();
const { apiKey, expiresAt } = await agent.rent(
  listings[0].listingId,
  termDays,
  ethers.parseUnits(diemAmount, 6)
);
```

## Provider Workflow (Listing)

1. **Create listing** on-chain: `contract.list(pricePerDay, termDays, diemMin, diemMax)` → `listingId`
2. **Store key** on backend: `POST /api/keys` with `{ listingId, apiKey, signature, timestamp }`
   - Message: `diem-marketplace:store-key:{listingId}:{timestamp}`
3. **Settle** when rental expires: `contract.settle(rentalId)` → provider receives 99% (1% protocol fee)

### SDK (Provider)

```typescript
import { DiemProvider } from "diem-marketplace-sdk";

const provider = new DiemProvider({
  signer: wallet,
  contractAddress: "0x...",
  backendUrl: "https://diem-marketplace-backend.fly.dev",
  usdcAddress: "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
});

const listingId = await provider.createLis...