MCP server de agenti

agenti

The money layer for AI agents.

🌐 Website: https://agenti.cash

An agent that can think but can't pay is half an agent. Agenti gives every AI — Claude, GPT-4, Llama, Gemini, or any custom LLM — the ability to hold, spend, earn, and receive cryptocurrency natively, autonomously, across any chain.

import { agenti } from '@agenti/sdk'

const agent = agenti({ evm: { privateKey: process.env.AGENT_KEY } })
const data = await agent.pay('https://api.example.com/premium-data')

One line. The agent now has money.

---

Vision

Every AI agent will need a wallet. Not a wallet managed by a human — a wallet the agent owns, funded by its work, spent on its needs, earning yield when idle.

Right now, if an AI agent needs to pay for an API, buy a resource, compensate another agent, or receive payment for its own work — a human has to step in. That breaks autonomy. Agenti removes that bottleneck entirely.

Agenti is the infrastructure for the agentic economy:

• An SDK so developers can give any agent financial capability in minutes — LangChain agents, AutoGen pipelines, CrewAI crews, custom LLM loops
• An MCP server so Claude, Cursor, Windsurf, and any MCP-compatible client can use money as a native tool without writing code
• A protocol layer built on open standards (x402, EIP-3009, ERC-8004) so agent payments interoperate across frameworks, chains, and wallets
• A payment network where agents pay each other for work, data, and compute — fully autonomous, no human intermediaries

The domain is agenti.cash. The name is the mission.

---

Packages

Package	Description	Install
@agenti/core	Wallet generation for EVM + Solana	npm i @agenti/core
@agenti/sdk	Full developer SDK — pay, receive, balance	npm i @agenti/sdk
@agenti/mcp	MCP server — plug into any LLM client	npx @agenti/mcp
@agenti/market	59 market, news, DeFi and on-chain data tools	npm i @agenti/market
@agenti/gateway	Paywall any Express API with x402 (Base + Solana), on the official @x402/* packages	npm i @agenti/gateway

Not on npm yet. The @agenti scope has not been published to, so the install commands above will 404 (tracked in #126). Until the first release is tagged, use the repo directly:

git clone https://github.com/nirholas/agenti && cd agenti && pnpm install && pnpm build

---

Quick Start

Give an agent a wallet

import { agenti, generateWallet } from '@agenti/sdk'

// Generate a fresh wallet (EVM + Solana in one call)
const wallet = generateWallet()
console.log(wallet.evm.address)    // 0x...  (Base, Arbitrum, Ethereum, Polygon)
console.log(wallet.solana.address) // base58 (Solana mainnet)

// Or load an existing wallet
const agent = agenti({
  evm: { privateKey: '0x...' },
  solana: { privateKey: Uint8Array.from([...]) },
})

Pay for anything

// Automatic x402 payment — if the server returns 402, agenti pays and retries
const response = await agent.pay('https://api.example.com/data')
const json = await response.json()

// POST with body
const result = await agent.pay('https://ai-service.com/generate', {
  method: 'POST',
  body: JSON.stringify({ prompt: 'summarize this document' }),
})

Check balances

const balances = await agent.balance()
// [
//   { token: 'USDC', amount: '42.00', chain: 'base' },
//   { token: 'SOL',  amount: '1.5',   chain: 'solana' }
// ]

Receive payments

// Create a payment request
const invoice = await agent.receive({ amount: 5, token: 'USDC', chain: 'base' })
// {
//   id: 'uuid',
//   address: '0x...',
//   amount: '5',
//   token: 'USDC',
//   chain: 'base',
//   expiresAt: Date
// }

---

MCP Server — Plug Into Any LLM

The @agenti/mcp package turns every tool in the SDK into an MCP tool that any LLM client can call — no code required.

Setup: Claude Desktop / Claude Code

{
  "mcpServers": {
    "agenti": {
      "command": "npx",
      "args": ["@agenti/mcp"],
      "env": {
        "AGENTI_EVM_PRIVATE_KEY": "0x...",
        "AGENTI_SOLANA_PRIVATE_KEY": "hex-encoded-64-byte-key"
      }
    }
  }
}

Setup: Cursor

{
  "mcpServers": {
    "agenti": {
      "command": "npx",
      "args": ["@agenti/mcp"]
    }
  }
}

Setup: Windsurf / Codeium

{
  "mcpServers": {
    "agenti": {
      "command": "npx",
      "args": ["@agenti/mcp"]
    }
  }
}

Available MCP Tools

Tool	Description
create_wallet	Generate a new EVM + Solana wallet (disabled by default because it returns private keys to the model; set AGENTI_MCP_ALLOW_SECRETS=1 for throwaway wallets)
get_balance	Check USDC, SOL, and token balances for any address
pay	Fetch a URL — if it returns 402, payment is handled automatically
create_invoice	Generate a payment request with an address and expiry
check_payment	Verify on-chain whether a payment was received
list_mcp_tools	List a remote MCP server's tools with their x402 prices
call_mcp_tool	Call a tool on a remote MCP server, paying for it with x402 when it asks, capped by max_amount

Once configured, you can tell any LLM: "Pay for this API and summarize the response" — and it will.

---

Framework Integrations

LangChain

import { tool } from '@langchain/core/tools'
import { agenti } from '@agenti/sdk'

const agent = agenti({ evm: { privateKey: process.env.AGENT_KEY } })

const payTool = tool(
  async ({ url }) => {
    const res = await agent.pay(url)
    return await res.text()
  },
  {
    name: 'pay_and_fetch',
    description: 'Pay for and fetch a URL that may require cryptocurrency payment',
    schema: z.object({ url: z.string() }),
  }
)

AutoGen / AG2

# Coming in @agenti/sdk-python (v0.8)
from agenti import Agenti

agent = Agenti(evm_private_key=os.environ["AGENT_KEY"])
result = agent.pay("https://api.example.com/data")

CrewAI

// Agenti tools drop into any CrewAI-compatible workflow
import { AgentiTool } from '@agenti/sdk/tools/crewai'

const crew = new Crew({
  agents: [researchAgent],
  tools: [new AgentiTool()],  // agents in the crew can now pay for resources
})

Vercel AI SDK

import { agenti } from '@agenti/sdk'
import { tool } from 'ai'

const agent = agenti({ evm: { privateKey: process.env.AGENT_KEY } })

const tools = {
  payForData: tool({
    description: 'Pay for and retrieve data from a paid API endpoint',
    parameters: z.object({ url: z.string() }),
    execute: async ({ url }) => {
      const res = await agent.pay(url)
      return res.json()
    },
  }),
}

OpenAI Assistants / Function Calling

const functions = [
  {
    name: 'pay_for_resource',
    description: 'Pay for an HTTP resource using cryptocurrency and return its content',
    parameters: {
      type: 'object',
      properties: { url: { type: 'string' } },
      required: ['url'],
    },
  },
]

// In your function handler:
async function handleFunctionCall(name, args) {
  if (name === 'pay_for_resource') {
    const res = await agent.pay(args.url)
    return res.text()
  }
}

ElizaOS

import { AgentiPlugin } from '@agenti/sdk/plugins/eliza'

export default {
  name: 'my-agent',
  plugins: [new AgentiPlugin({ evmKey: process.env.AGENT_KEY })],
}

---

How Payments Work

EVM — x402 Protocol

Agenti implements the x402 open standard — an HTTP-native payment protocol that turns the long-dormant 402 Payment Required status code into a real payment flow.

1. Agent sends request
   GET https://api.example.com/data

2. Server responds with payment requirements
   HTTP/1.1 402 Payment Required
   Content-Type: application/json

   {
     "x402Version": 1,
     "accepts": [{
       "scheme": "exact",
       "network": "base-mainnet",
       "maxAmountRequired": "1000000",   // 1 USDC (6 decimals)
       "payTo": "0x...",
       "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",  // USDC on Base
       "maxTimeoutSeconds": 300
     }]
   }

3. Agenti signs an EIP-3009 transferWithAuthorization
   (gasless — no ETH required, no transaction to wait for)

4. Agent retries with payment
   GET https://api.example.com/data
   X-Payment: <base64-encoded signed authorization>

5. Facilitator verifies signature and settles on-chain
   HTTP/1.1 200 OK

   { "data": "..." }

Why this is better than every other payment method:

• No API keys to manage
• No billing accounts to create
• No monthly invoices
• No human card approval
• Works across every HTTP client, framework, and language
• The agent pays exactly what the resource costs — nothing more

Solana — Pump Agent Payments

For Solana, agenti integrates with the pump.fun Agent Payments program at AgenTMiC2hvxGebTsgmsD4HHBa8WEcqGFf87iwRRxLo7. Same HTTP 402 flow, same agent.pay() call — settled on Solana using SPL tokens.

// Works identically — agenti detects the network from the 402 response
const res = await agent.pay('https://solana-api.example.com/data')

---

Building a Paid API

You can also gate your own APIs behind agenti payments using any x402-compatible server middleware:

Express

import express from 'express'
import { paymentMiddleware } from '@x402/express'

const app = express()

app.use(
  paymentMiddleware({
    amount: '0.01',       // $0.01 USDC per request
    token: 'USDC',
    network: 'base-mainnet',
    address: '0xYourAddress',
  })
)

app.get('/data', (req, res) => {
  res.json({ result: 'premium data' })
})

Any agent using agenti will automatically pay and get through. No auth tokens. No rate-limit negotiation. Just value exchanged for value.

Next.js

// app/api/premium/route.ts
import { withPayment } from '@x402/next'

export const GET = withPayment(
  { amount: '0.001', token: 'USDC', network: 'base-mainnet' },
  async (req) => {
    return Response.json({ data: 'premium content' })
  }
)

Cloudflare Workers / Edge

import { verifyPayment } from '@x402/core'

export default {
  async fetch(req) {
    const payment = req.headers.get('X-Payment')
    if (!payment) return paymentRequired()
    await verifyPayment(payment, { amount: '0.001', network: 'base-mainnet' })
    return new Response(JSON.stringify({ data: 'result' }))
  },
}

---

Solana Trading Tutorials

Built on @pump-fun/pump-sdk, @pump-fun/pump-swap-sdk, and @pump-fun/agent-payments-sdk — the official pump.fun SDKs.

All examples are in examples/ and runnable with npx tsx.

---

Tutorial 1 — Buy a Coin

The most fundamental operation. Spend SOL, receive a token. Works on both the bonding curve and the graduated AMM — the pump.fun API auto-detects which.

import { Connection, Keypair } from '@solana/web3.js'
import bs58 from 'bs58'
import { solana } from '@agenti/sdk'

const keypair = Keypair.fromSecretKey(bs58.decode(process.env.SOLANA_PRIVATE_KEY!))
const trader = solana({ keypair, connection })

const result = await trader.buy({
  mint: 'HeLp6NuQkmYB4pYWo2zYs22mESHXPQYzXbB8n4V98jwC', // token mint
  solAmount: 0.1,  // 0.1 SOL
  slippage: 5,     // 5%
})

console.log(result.explorerUrl)
// → https://solscan.io/tx/...

Run it:

SOLANA_PRIVATE_KEY=<your-key> npx tsx examples/01-buy-a-coin.ts

Under the hood, trader.buy() calls POST https://fun-block.pump.fun/agents/swap, deserializes the returned transaction, signs it with your keypair, and confirms it. The API automatically routes to the bonding curve or AMM based on the coin's current state.

---

Tutorial 2 — Give a Wallet to an Agent

Wallets are keypairs. Agenti generates EVM + Solana in one call, or loads from any key format.

import { generateWallet, solana } from '@agenti/sdk'
import { Keypair } from '@solana/web3.js'
import bs58 from 'bs58'

// Generate a fresh wallet — store these keys securely
const wallet = generateWallet()
console.log('EVM:    ', wallet.evm.address)
console.log('Solana: ', wallet.solana.address)
console.log('Key:    ', bs58.encode(wallet.solana.privateKey)) // Phantom-compatible

// Load existing wallet and give it to a trader instance
const keypair = Keypair.fromSecretKey(bs58.decode(process.env.SOLANA_PRIVATE_KEY!))
const trader = solana({ keypair, rpc: process.env.SOLANA_RPC_URL })

// trader now has signing authority — pass it to any agent

For MCP-based agents (Claude, Cursor), the wallet key lives in AGENTI_SOLANA_PRIVATE_KEY in your MCP server config. The LLM never sees the key — it just calls tools.

---

Tutorial 3 — Let an Agent Decide What to Buy

Wire Claude (or any LLM) as the decision-maker. The agent reads market data, picks a token, and executes the trade autonomously using the Anthropic SDK.

import Anthropic from '@anthropic-ai/sdk'
import { solana } from '@agenti/sdk'

const anthropic = new Anthropic()
const trader = solana({ keypair, connection })

const tools: Anthropic.Tool[] = [
  {
    name: 'get_trending_tokens',
    description: 'Get top trending tokens on pump.fun',
    input_schema: { type: 'object', properties: {}, required: [] },
  },
  {
    name: 'buy_token',
    description: 'Buy a token with SOL',
    input_schema: {
      type: 'object',
      properties: {
        mint: { type: 'string' },
        sol_amount: { type: 'number' },
        reason: { type: 'string' },
      },
      required: ['mint', 'sol_amount', 'reason'],
    },
  },
]

// Agentic loop — Claude picks a token and fires the buy
let messages: Anthropic.MessageParam[] = [
  { role: 'user', content: 'Find a trending token and buy 0.01 SOL worth. Be decisive.' },
]

while (true) {
  const response = await anthropic.messages.create({
    model: 'claude-sonnet-4-6',
    max_tokens: 1024,
    tools,
    messages,
  })
  messages.push({ role: 'assistant', content: response.content })

  if (response.stop_reason === 'end_turn') break

  if (response.stop_reason === 'tool_use') {
    const results = await Promise.all(
      response.content
        .filter((b) => b.type === 'tool_use')
        .map(async (b) => {
          if (b.type !== 'tool_use') return
          if (b.name === 'buy_token') {
            const { mint, sol_amount } = b.input as { mint: string; sol_amount: number }
            const result = await trader.buy({ mint, solAmount: sol_amount, slippage: 5 })
            return { type: 'tool_result' as const, tool_use_id: b.id, content: JSON.stringify(result) }
          }
          return { type: 'tool_result' as const, tool_use_id: b.id, content: '[]' }
        })
    )
    messages.push({ role: 'user', content: results.filter(Boolean) as Anthropic.ToolResultBlockParam[] })
  }
}

Run it:

ANTHROPIC_API_KEY=sk-... SOLANA_PRIVATE_KEY=<key> npx tsx examples/03-agent-buys.ts

---

Tutorial 4 — Buy on Migration

When a bonding curve fills up (~$69k market cap), the token "graduates" to the PumpSwap AMM. This is a tradeable moment. watchMigration fires the instant it detects graduation.

import { solana } from '@agenti/sdk'

const trader = solana({ keypair, connection })

// Check current state first
const state = await trader.coinState(MINT)
console.log(state.phase) // 'bonding' | 'migrating' | 'graduated'

// Watch and buy the instant it migrates
const stop = trader.watchMigration(
  MINT,
  async ({ mint, pool }) => {
    console.log(`Graduated! Pool: ${pool}`)

    const result = await trader.buy({
      mint,
      solAmount: 0.05,
      slippage: 15,        // higher slippage for volatility at migration
      priorityFee: 100_000 // priority fee for faster inclusion
    })

    console.log(`Bought post-migration: ${result.explorerUrl}`)
    stop() // unsubscribe
  },
  { pollIntervalMs: 1500 } // poll every 1.5 seconds
)

Run it:

SOLANA_PRIVATE_KEY=<key> MINT=<mint> npx tsx examples/04-buy-on-migration.ts

The watcher polls https://frontend-api-v3.pump.fun/coins-v2/{mint} for the complete field and pump_swap_pool address. For production, pass useLogs: true to use a WebSocket subscription to the pump.fun program logs instead — lower latency but requires a reliable RPC (Helius, Triton, QuickNode).

---

Tutorial 5 — Sell on Migration

Bought on the bonding curve, want to exit at graduation before post-migration volatility? watchMigration + sell handles it.

import { solana } from '@agenti/sdk'

const trader = solana({ keypair, connection })

// Watch and exit the moment bonding curve completes
const stop = trader.watchMigration(
  MINT,
  async ({ mint }) => {
    const result = await trader.sell({
      mint,
      tokenAmount: 50000, // tokens to sell (human units)
      slippage: 15,
    })
    console.log(`Sold on migration: ${result.explorerUrl}`)
    stop()
  },
  { pollIntervalMs: 1500 }
)

Run it:

SOLANA_PRIVATE_KEY=<key> MINT=<mint> TOKEN_AMOUNT=50000 npx tsx examples/05-sell-on-migration.ts

---

How Selling Works

trader.sell() calls the same POST https://fun-block.pump.fun/agents/swap endpoint, but with inputMint = token and outputMint = native SOL. Token amounts use 6 decimal places — 1000 human tokens = 1_000_000_000 raw units. Agenti handles the conversion automatically.

// Sell 1000 tokens
await trader.sell({ mint, tokenAmount: 1000, slippage: 5 })
// → sends amount: "1000000000" (6 decimals) to the API internally

---

Install for Examples

npm install @agenti/sdk @pump-fun/pump-sdk @pump-fun/pump-swap-sdk @pump-fun/agent-payments-sdk
npm install @solana/web3.js@^1.98.2 bs58 tsx

Or clone this repo and run from examples/:

git clone https://github.com/nirholas/agenti
cd agenti && pnpm install
cd examples
SOLANA_PRIVATE_KEY=<key> npx tsx 01-buy-a-coin.ts

---

Roadmap

The current release is v0.1 — the foundation. Here's where this goes:

v0.2 — Multi-token, Multi-chain

• USDC on Arbitrum, Ethereum, Polygon
• USDT support across chains
• Native ETH and SOL payments (not just stablecoins)
• Multi-chain balance aggregation in a single call
• ENS + SNS address resolution (agent.pay('agent.eth'))
• Token price oracle integration (pay in any token, settle in USDC)

v0.3 — Agent Identity

• ERC-8004 on-chain agent identity registration (22 EVM chains)
• Agent wallet addresses linked to on-chain identity NFTs
• Agent reputation scoring derived from payment history
• Discoverable payment endpoints via .well-known/agent.json
• DID (Decentralized Identifier) support for agent wallets
• Verifiable credential issuance for agent payment history

v0.4 — Agent-to-Agent Payments

• Direct A2A payments: orchestrator agent pays sub-agents for completed work
• Payment channels — off-chain micropayment streams, settle on demand
• Task invoicing — agent emits invoice, orchestrator pays on completion
• Multi-party escrow for trustless agent coordination
• Atomic task + payment (pay only if the task output passes a verifier)
• Negotiation protocol — agents bid on tasks, lowest bid wins

v0.5 — Budgets & Spending Controls

• Per-session spending limits for AI agents
• Allowlists for approved payment recipients
• Budget delegation — parent agent allocates sub-budget to child agents
• Automatic top-up when balance falls below threshold
• Human approval gates for payments above configurable threshold
• Spending analytics — where did the agent spend, on what, when
• Role-based payment policies for multi-agent systems

v0.6 — Earning & Yield

• x402-gate your own agent's capabilities — earn when others use you
• Idle balance yield via USDs (Sperax) — 8–25% APY, auto-compound
• Payment streaming — agents earn per-second for ongoing subscriptions
• Revenue sharing between agent operator and agent owner
• Earnings dashboard with CSV export for accounting
• Tax reporting helpers (cost basis, realized gains)

v0.7 — Plugin Ecosystem

• @agenti/plugin-stripe — agents accept card payments, cash out to bank
• @agenti/plugin-bitrefill — buy gift cards, eSIMs, mobile top-ups with agent balance
• @agenti/plugin-uniswap — auto-swap to correct token before payment
• @agenti/plugin-bridge — cross-chain: hold SOL, pay USDC on Base transparently
• @agenti/plugin-paypal — fiat on/off ramp for agents
• @agenti/plugin-lightning — Bitcoin Lightning payments
• Plugin registry at agenti.cash/plugins

v0.8 — Developer Tooling

• agenti-server — one decorator turns any function into a paid API endpoint
• Real-time spending dashboard with WebSocket balance updates
• Webhooks — fire on payment sent, payment received, low balance, earn event
• TypeScript SDK expanded to 20+ chains via Viem + Solana Kit
• Python SDK (agenti-py) — for LangChain, AutoGen, CrewAI, DSPy, Haystack
• Go SDK — for high-performance agent infrastructure
• Rust SDK — for on-chain programs and ultra-low-latency agents
• CLI — agenti send 5 USDC to 0x... --from my-agent
• Postman / Bruno collection for testing paid APIs

v0.9 — Enterprise & Compliance

• Multi-sig agent wallets (require N-of-M approvals above threshold)
• Audit logs — immutable on-chain record of all agent payments
• SOC 2 compliance helpers for enterprise agentic deployments
• VASP compliance tooling for regulated environments
• Batch payments — one transaction settles thousands of micropayments
• Gas abstraction — agents never need to manage gas tokens

v1.0 — The Agent Payment Network

• Public agent registry — discover agents that accept payment, what they offer, and their price
• Composable agentic pipelines with automatic payment routing between steps
• Cross-agent settlement batching — reduce on-chain cost of millions of micropayments
• Agent payment reputation — fraud detection, blacklists, trust scores
• Decentralized facilitator network — no single point of failure for x402 settlement
• Agenti Chain — purpose-built L2 optimized for agent micropayments: instant finality, sub-cent fees, native x402 support

---