ATXP — Agent Payment & Wallet Infrastructure

Give your AI agent a wallet, email, phone number, and instant access to paid MCP tools — web search, image/video/music generation, X/Twitter search, SMS, voice calls, code execution, file storage, and more.

ATXP (Agent Transaction Protocol) lets AI agents pay for their own tools and services without managing API keys. Self-register in one command, pay per use. Works with any MCP client.

Install

Gemini CLI

gemini extensions install https://github.com/atxp-dev/atxp

After installing, start a new Gemini CLI session for the extension tools to load.

Claude Desktop / Cursor / Windsurf

Add to your MCP client config (e.g. claude_desktop_config.json):

{
  "mcpServers": {
    "atxp": {
      "command": "npx",
      "args": ["-y", "atxp@latest"]
    }
  }
}

Any MCP Client

npx atxp@latest

ATXP runs as a standard MCP server over stdio. Point any MCP-compatible client at the command above.

Setup

Option 1: Agent self-registration (recommended)

No browser, no human login needed. Just ask your agent:

Register me on ATXP so I can use paid tools

The agent calls the atxp_register tool, which creates an account instantly with:

• 10 IOU tokens to start
• A unique email address
• An Ethereum wallet
• A connection string (saved automatically)

No settings to configure — the agent is ready to use all tools immediately.

Option 2: Use an existing ATXP account

If you already have an ATXP account from accounts.atxp.ai, set the ATXP_CONNECTION environment variable to your connection string, or pass it to the CLI:

ATXP_CONNECTION="https://accounts.atxp.ai?connection_token=<TOKEN>&account_id=<ACCOUNT_ID>" npx atxp@latest

For Gemini CLI, enter the token and account ID when prompted during extension setup.

Available Tools

Core Tools (41 tools, always available)

Category	Tools	Description
Account	Register, Login, Whoami, Balance, Fund, Transactions	Self-register, check balance, get funding options
Search	Web Search, X/Twitter Search	Real-time web and social search
Media	Image, Video, Music	AI generation (returns URLs)
Email	Inbox, Read, Send, Reply, Search, Delete, Attachments, Username	Full email with @atxp.email address
Phone	Register, SMS, Send SMS, Voice Call, Call History, Search	SMS and AI-powered voice calls
Contacts	Add, List, Show, Edit, Remove, Search, Push, Pull	Local contacts with cloud sync
Agents	Create, List	Manage sub-agents

Remote MCP Tools (Gemini CLI extension only, requires settings)

Tool	Description
Browse	Fetch and read web page content
Crawl	Crawl websites and extract structured data
Research	Deep multi-source research and synthesis
Code	Execute code in a sandbox
File Store	Persistent cloud file storage
Phone	SMS, voice calls via MCP proxy

Usage

Just ask your agent naturally:

Search the web for the latest AI research papers

Generate an image of a sunset over mountains

Send an SMS to +1234567890 saying "Hello from my AI agent"

Check my ATXP email inbox

Run this Python script in a sandbox

The agent uses the appropriate ATXP tool automatically.

Managing Your Account

Use the built-in tools or the ATXP CLI:

npx atxp@latest balance          # Check balance
npx atxp@latest fund             # Show funding options
npx atxp@latest transactions     # View transaction history
npx atxp@latest whoami           # Show account info

Billing

All tools are pay-per-use, billed to your ATXP account in USDC. Typical costs:

Action	Cost
Web/X search, image gen	$0.001–$0.05
Send email	$0.01
Send SMS	$0.05
Voice call	$0.10
Claim email username	$1.00
Register phone number	$2.00

No subscriptions, no API keys to manage.

Links

• ATXP Website
• Documentation
• Tool Catalog
• MCP Registry
• CLI on npm
• Account Portal

License

MIT