Printr

npm version npm downloads license CI codecov skills.sh

MCP server for Printr — the cross-chain token launchpad built for holders. Lets AI agents launch, stake, and graduate tokens across EVM chains and Solana.

No API key required. Works out of the box.

📖 Documentation

Setup

Add to your MCP client config (Claude Desktop, Cursor, etc.):

{
    "mcpServers": {
        "printr": {
            "command": "npx",
            "args": ["-y", "@printr/mcp@latest"]
        }
    }
}

Or with bunx:

{
    "mcpServers": {
        "printr": {
            "command": "bunx",
            "args": ["@printr/mcp@latest"]
        }
    }
}

Skill (optional, complements the MCP config above)

In addition to the MCP config, install the Printr skill to give your agent built-in guidance on when and how to use these tools. Compatible with Claude Code, Cursor, Codex, OpenCode, and 50+ other runtimes.

npx skills add PrintrFi/printr-mcp

Preview without installing:

npx skills add PrintrFi/printr-mcp --list

The skill is auto-discovered from packages/cli/skills/printr/SKILL.md. See the skill definition for the full tool list and behavioral hints.

Optional capabilities

Auto-generate token images

Set OPENROUTER_API_KEY and the agent will generate an image automatically when you create a token without supplying one. The printr_generate_image tool also becomes available for standalone image generation.

"env": {
    "OPENROUTER_API_KEY": "<your-openrouter-key>"
}

Let the agent sign transactions autonomously

By default, token creation returns an unsigned transaction that you sign via browser wallet or by passing a private key per call. If you want the agent to sign and submit without prompting, set a default key:

"env": {
    "EVM_WALLET_PRIVATE_KEY": "<hex-private-key>",
    "SVM_WALLET_PRIVATE_KEY": "<base58-keypair-secret>"
}

Keep private keys out of shared configs. Use environment-level secrets when possible.

Tools

Tool	Description
printr_quote	Get cost estimates for token creation
printr_create_token	Generate an unsigned token creation tx payload
printr_launch_token	Create and sign a token in one call
printr_get_token	Look up token details by ID or address
printr_get_deployments	Check deployment status across target chains
printr_sign_and_submit_evm	Sign and submit an EVM tx payload
printr_sign_and_submit_svm	Sign and submit a Solana tx payload
printr_open_web_signer	Start a browser signing session (MetaMask / Phantom)
printr_generate_image	Generate a token avatar via OpenRouter (requires OPENROUTER_API_KEY)

For the full tool list including wallet, balance, transfer, fees, and staking tools, see packages/cli/skills/printr/SKILL.md.

Environment variables

Variable	Description
PRINTR_API_KEY	Partner API key. Falls back to the default public AI-integration key.
OPENROUTER_API_KEY	Enables auto image generation and the printr_generate_image tool
OPENROUTER_IMAGE_MODEL	Image model override (default: google/gemini-2.5-flash-image)
EVM_WALLET_PRIVATE_KEY	Default EVM private key for autonomous signing
SVM_WALLET_PRIVATE_KEY	Default Solana keypair secret for autonomous signing
PRINTR_DEPLOYMENT_PASSWORD	Master password for encrypting deployment wallets (min 16 chars). Required for printr_fund_deployment_wallet. Generate with: openssl rand -base64 32

Dev / self-hosting

Variable	Description
PRINTR_API_BASE_URL	Override API base URL (default: https://api-preview.printr.money)
PRINTR_APP_URL	Override app URL (default: https://app.printr.money)

Development

This is a monorepo with three packages:

• @printr/sdk — Core TypeScript SDK (framework-agnostic)
• @printr/mcp — MCP server wrapping the SDK
• @printr/cli — CLI for setup and configuration

bun install
bun dev          # Run MCP server with hot reload
bun test         # Run all tests
bun run check    # typecheck + lint + test

Package-specific commands

# SDK
bun run --cwd packages/sdk test
bun run --cwd packages/sdk build

# MCP
bun run --cwd packages/mcp test
bun run --cwd packages/mcp build

Using the SDK directly

Uses createPrintrClient and buildToken:

import { createPrintrClient, buildToken } from '@printr/sdk';

const client = createPrintrClient({
  apiKey: process.env.PRINTR_API_KEY,
});

const result = await buildToken({
  creator_accounts: ['eip155:8453:0x...'],
  name: 'My Token',
  symbol: 'TKN',
  description: 'A cool token',
  chains: ['eip155:8453'],
  initial_buy: { spend_usd: 10 },
}, client);