Interact Agent

Interact with a Running AgenticID Agent

Metadata

• Category: agentic-id
• SDK: @0gfoundation/0g-agenticid-sdk ^0.1.6, viem ^2.21.0
• Activation Triggers: "call an agent", "chat with an agent", "talk to my agent", "agent endpoints", "agent services", "agent logs"

Purpose

Call a deployed AgenticID agent: discover what it exposes, chat with it as its owner, invoke its signed /api/* services, and read its logs. The SDK resolves the agent's URL from chain, so an agentId is enough.

This layer uses viem, not ethers. The repo-wide ethers rule does not apply to agentic-id skills.

Two kinds of surface, and the difference matters

Only /api/* services carry X-Agent-Proof. Chat and UI routes deliberately do not: signing an owner-authenticated channel would let an owner manufacture their own reputation. If you need a proof to leave feedback, call a service, not chat.

Prerequisites

• Node.js >= 20
• @0gfoundation/0g-agenticid-sdk and viem installed
• An agent in phase running
• A wallet only for owner-scoped calls (chat, chatStream, logs); public calls need none

Quick Workflow

1. Build the client; pass account only if you need owner-scoped calls
2. client(agentId) to get a handle, or connect(agentId) to force a public one
3. Inspect agent.services and agent.routes to see what exists
4. Call it: fetchWithProof() for services, chat() for chat routes

Core Rules

ALWAYS

• Use fetchWithProof() on /api/* services when you intend to leave feedback afterwards
• Check agent.chat and agent.logs exist before calling them; they are present only with an owner key and a declared route
• Read agent.services / agent.routes rather than guessing paths
• Use connect() when you explicitly want a public handle with no token attached
• Remember model on chat() is the framework's selector, not an LLM name; the LLM is fixed at deploy time

NEVER

• Expect a serve-proof from a chat or UI route; proof comes back null
• Assume chat is available on a handle built without an owner key
• Hardcode the agent URL when an agentId will resolve it
• Pass an LLM model name to chat()'s model option
• Hardcode a private key

Code Examples

Discover what an agent exposes

sayHi() needs only the URL and no wallet.

import { AgenticID } from '@0gfoundation/0g-agenticid-sdk';
import 'dotenv/config';

async function discover(agentId: bigint) {
  const ag = await AgenticID.fromAttestor('https://agenticid.0g.ai');

  // connect() is the explicit PUBLIC handle: never attaches a token.
  const agent = await ag.agent.connect(agentId);

  console.log('signed services (attributable, /api/*):');
  for (const s of agent.services) {
    console.log(`  ${s.method} ${s.path}  ${s.description ?? ''}`);
  }

  console.log('framework routes (chat/UI, unsigned):');
  for (const r of agent.routes) {
    console.log(`  ${r.prefix}  kind=${r.kind ?? '?'} auth=${r.auth ?? 'none'} signed=${r.signed}`);
  }

  return { services: agent.services, routes: agent.routes };
}

Or straight from a URL, without touching chain:

async function greet(agentUrl: string) {
  const ag = await AgenticID.fromAttestor('https://agenticid.0g.ai');
  const { hello, verification } = await ag.agent.sayHi(agentUrl);
  console.log(hello.agent, hello.owner, hello.message);
  console.log('verification:', JSON.stringify(verification));
  return hello;
}

Call a signed service and keep the proof

This is the call that produces a redeemable serve-proof.

async function summarize(agentId: bigint, text: string) {
  const ag = await AgenticID.fromAttestor('https://agenticid.0g.ai');
  const agent = await ag.agent.connect(agentId);

  const { response, proof } = await agent.fetchWithProof('/api/summarize', {
    method: 'POST',
    headers: { 'content-type': 'application/json' },
    body: JSON.stringify({ q: text }),
  });

  const body = await response.json();

  // proof is null when the route is not a signed /api/* service.
  if (proof) {
    console.log(`proof for agent ${proof.agentId}, redeemable by ${proof.submitter}`);
  }

  return { body, proof };
}

Chat as the owner

chat and chatStream appear on the handle only when the client holds the owner key and the agent declares a chat route.

async function chat(agentId: bigint, message: string) {
  const ag = await AgenticID.fromAttestor('https://agenticid.0g.ai', {
    account: process.env.PRIVATE_KEY as `0x${string}`,
  });

  const agent = await ag.agent.client(agentId);

  if (!agent.chat) {
    console.log('no chat route, or this handle is not the owner');
    return null;
  }

  // `model` selects the FRAMEWORK, not an LLM. openclaw wants "openclaw".
  const { choices } = await agent.chat([{ role: 'user', content: message }], {
    model: 'openclaw',
  });

  return choices[0]?.message?.content;
}

Streaming yields content deltas:

async function streamChat(agentId: bigint, message: string) {
  const ag = await AgenticID.fromAttestor('https://agenticid.0g.ai', {
    account: process.env.PRIVATE_KEY as `0x${string}`,
  });

  const agent = await ag.agent.client(agentId);
  if (!agent.chatStream) return;

  for await (const delta of agent.chatStream([{ role: 'user', content: message }], {
    model: 'openclaw',
  })) {
    process.stdout.write(delta);
  }
}

Plain fetch, and owner-only logs

async function inspect(agentId: bigint) {
  const ag = await AgenticID.fromAttestor('https://agenticid.0g.ai', {
    account: process.env.PRIVATE_KEY as `0x${string}`,
  });

  const agent = await ag.agent.client(agentId);

  // fetch() attaches the bearer token when the route asks for auth.
  const models = await agent.fetch('/v1/models');
  console.log(await models.json());

  // logs() is owner-only, so it may be absent.
  if (agent.logs) {
    console.log(await agent.logs({ tail: 200 }));
  }
}

Choosing a handle

async function handles(agentId: bigint) {
  const ag = await AgenticID.fromAttestor('https://agenticid.0g.ai', {
    account: process.env.PRIVATE_KEY as `0x${string}`,
  });

  // client(): owner ops present when the key matches; accepts an id OR a url
  const auto = await ag.agent.client(agentId);

  // authenticate(): mint the owner token up front; fails without a wallet
  const owner = await ag.agent.authenticate(agentId);

  // connect(): explicitly public, never attaches a token
  const publicHandle = await ag.agent.connect(agentId);

  return { auto, owner, publicHandle };
}

Anti-Patterns

// BAD: expecting a proof from a chat route — chat is deliberately unsigned
const agent = await ag.agent.client(agentId);
const { proof } = await agent.fetchWithProof('/v1/chat/completions', { method: 'POST' });
// proof === null; call an /api/* service instead

// BAD: calling chat() without checking it exists
await agent.chat!([{ role: 'user', content: 'hi' }]); // undefined on a public handle

// BAD: passing an LLM name as the framework selector
await agent.chat(msgs, { model: 'claude-opus-5' }); // the LLM is fixed at deploy

// BAD: hardcoding the URL when the id resolves it
await fetch('https://8080-abc.art.0g.ai/api/summarize', { method: 'POST' });

// BAD: guessing paths instead of reading the manifest
await agent.fetch('/api/summarise'); // check agent.services for the real spelling

Common Errors & Fixes

Related Skills

• Agent Reputation — redeem the proof this skill captures
• Manage Agent — get an agent into running
• Deploy Agent — mint and provision
• Agent Accounts — keep the runtime funded

References

• patterns/AGENTIC_ID.md
• SDK reference