erc8004-on-abstract

ERC-8004 on Abstract

ERC-8004 gives AI agents onchain identity and reputation on Abstract. Agents mint an NFT identity, publish a metadata URI describing their capabilities, and accumulate reputation feedback from clients who use them.

Abstract has the IdentityRegistry and ReputationRegistry deployed on mainnet. For the full deployed contract list, see connecting-to-abstract skill → references/deployed-contracts.md.

Contract Addresses (Mainnet)

Quick Start: Register an Agent

import { createWalletClient, http } from "viem";
import { abstract } from "viem/chains";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const client = createWalletClient({ account, chain: abstract, transport: http() });

const agentId = await client.writeContract({
  address: "0x8004A169FB4a3325136EB29fA0ceB6D2e539a432",
  abi: [{ name: "register", type: "function", stateMutability: "nonpayable", inputs: [{ name: "agentURI", type: "string" }], outputs: [{ name: "agentId", type: "uint256" }] }],
  functionName: "register",
  args: ["https://your-agent.com/agent.json"],
});

The agentURI points to a JSON file describing your agent. See references/agent-uri-schema.md for the schema.

Quick Start: Check an Agent's Reputation

import { createPublicClient, http } from "viem";
import { abstract } from "viem/chains";

const client = createPublicClient({ chain: abstract, transport: http() });

const [count, summaryValue, decimals] = await client.readContract({
  address: "0x8004BAa17C55a88189AE136b182e5fdA19dE9b63",
  abi: [{ name: "getSummary", type: "function", stateMutability: "view", inputs: [{ name: "agentId", type: "uint256" }, { name: "clientAddresses", type: "address[]" }, { name: "tag1", type: "string" }, { name: "tag2", type: "string" }], outputs: [{ name: "count", type: "uint64" }, { name: "summaryValue", type: "int128" }, { name: "summaryValueDecimals", type: "uint8" }] }],
  functionName: "getSummary",
  args: [22n, [], "starred", ""],
});