@earn-fi/agent-client

Official TypeScript SDK and earnfi-agent CLI for the EarnFi Agent API (ai-agent/v1).

npm install @earn-fi/agent-client

Quick start

import { Connection, Keypair } from '@solana/web3.js';
import { clientFromEnv, EarnFiAgentClient } from '@earn-fi/agent-client';

// Or explicit setup:
const client = new EarnFiAgentClient({
  agentToken: process.env.EARNFI_AGENT_TOKEN,
  connection: new Connection(process.env.SOLANA_RPC_URL!),
  wallet: myWallet, // required for paid creates
});

await client.register({
  agentName: 'my-agent',
  walletAddress: myWallet.publicKey.toBase58(),
  signMessage: async (msg) => signUtf8(msg),
});

const quote = await client.quoteSocialJob({
  taskType: 'follow',
  slots: 2,
  rewardPerUser: '0.03',
  contentUrl: 'https://x.com/joel_bulldev',
});

await client.preflightPayment(quote.paymentRequired?.accepts[0]);

const job = await client.createSocialJob({
  taskType: 'follow',
  slots: 2,
  rewardPerUser: '0.03',
  contentUrl: 'https://x.com/joel_bulldev',
});
// job.json → { job_id, secret, status_url }

Human Actions

Use one typed contract to ask, review, vote, test, research, verify, moderate, or collect feedback from people:

const action = await client.createHumanAction({
  actionType: 'review',
  prompt: 'Review the signup flow and list the three biggest problems.',
  slots: 3,
  rewardPerUser: '0.10',
});

const result = await client.waitForHumanAction(
  action.json.action_id!,
  { secret: action.json.secret! }
);

Convenience methods include askHuman, reviewWithHumans, askHumansToVote, testWithHumans, researchWithHumans, verifyWithHumans, moderateWithHumans, and collectHumanFeedback. createAction and getActionResult remain as aliases.

Environment variables: EARNFI_AGENT_API_BASE, EARNFI_AGENT_TOKEN, SOLANA_RPC_URL, SOLANA_SECRET_KEY_B58

const client = clientFromEnv();

x402 payments

• Sends Agent-Token (and X-Agent-Token) on both the 402 quote request and the payment retry.
• Built-in exact-SVM signer: 3-instruction USDC transfer (≤40k CU, ≤5 microLamports/CU).
• Preflight: checks USDC ATA + balance — if missing, fund the wallet with USDC (facilitator covers tx fees; do not create ATA inside payment tx).
• quoteSocialJob() — 402 only, no wallet. createSocialJob() — full pay flow.

API coverage

Area	Methods
Discovery	getCatalog, postCatalog, getX402Preview, register, registerIfNeeded
Paid GET	createSocialJob, createManualJob, createContestJob, createInterrupt
Paid POST	createSocialJobPost, createManualJobPost, createContestJobPost, createInterruptPost
Polling	getJob, listSubmissions, listCompletions, getInterruptStatus, waitForSubmissions, pollUntilComplete
Creator	pauseJob, closeJob, verifications, contest, detail/users/payments
Human Actions	createHumanAction, quoteHumanAction, convenience methods, getHumanActionResult, waitForHumanAction

Paid creates and Human Actions accept optional Instant / Seeker fields (quick, effortBucket, targetClients, requireSgtHolder / seekerOnly, paymentMethod, targetingPolicy, minRank). closeJob refunds unused slots to Creator Wallet Paid.

Registration helpers: fetchRegisterChallenge, postRegister, normalizeEd25519Signature.

CLI

npx earnfi-agent init --wallet PUBKEY --name my-agent --secret-key-bs58 KEY
npx earnfi-agent preflight --secret-key-bs58 KEY
npx earnfi-agent create-social --task-type follow --slots 2 --reward 0.03 --content-url https://x.com/joel_bulldev
npx earnfi-agent poll-job --job-id EF123A --secret SECRET
npx earnfi-agent create-action --type review --prompt "Review this page" --slots 3 --reward 0.10
npx earnfi-agent poll-action --action-id ACTION_ID --secret SECRET

SDK vs MCP vs skill

Surface	Use when
This package	Node/TS agents, Synapse plugins, automation
Hosted MCP https://app.earnfi.fun/mcp	Cursor / MCP-native agents
skill.md	Human-readable spec + curl examples

See EarnFi skill and OpenAPI.

Links

• Source & issues
• npm