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)

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}

1. Settle when rental expires: contract.settle(rentalId) → provider receives 99% (1% protocol fee)

SDK (Provider)

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.createListing({
  pricePerDay: ethers.parseUnits("0.80", 6),
  termDays: 30,
  diemMin: ethers.parseUnits("1000", 6),
  diemMax: ethers.parseUnits("4000", 6),
  apiKey: "vn-scoped-...",
});

Key Paths

| Path | Purpose |

|------|---------|

| sdk/src/agent.ts | DiemAgent: getListings, rent, getKey, getMyRentals |

| sdk/src/provider.ts | DiemProvider: createListing, settle, revokeAndRefund |

| backend/src/routes.ts | API routes: /api/listings, /api/keys, /api/key/:id |

| contracts/DiemMarketplace.sol | On-chain escrow, 1% fee |

Backend API

| Endpoint | Method | Purpose |

|----------|--------|---------|

| /api/listings | GET | List rentable listings |

| /api/listings/:id | GET | Single listing |

| /api/keys | POST | Provider stores API key |

| /api/key/:rentalId | POST | Agent retrieves key (signature required) |

| /api/balance | POST | Check DIEM balance for API key |

| /api/requests | POST | Create rental request |

Signatures

All backend requests requiring auth use EIP-191 signing:

• getKey: diem-marketplace:get-key:{rentalId}:{timestamp}
• storeKey: diem-marketplace:store-key:{listingId}:{timestamp}
• balance: apiKey in body (no signature)

Contract (Base)

• Chain: Base (8453)
• Mainnet: 0xeeDa7657f2018b3b71B444b7ca2D8dE91b3B08f3
• USDC: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Security & Signing

• Use an external signer or hardware wallet; never paste raw private keys.
• Require explicit user confirmation before fund transfers or credential usage.
• Venice API keys must be scoped (inference-only), revocable, and minimal for escrow.

Notes

• Venice API keys must be inference-only (not admin)
• 1% protocol fee deducted at settlement