AsterPay — EUR Settlement for AI Agents

What it does

Gives your OpenClaw agent access to AsterPay's API — 16 endpoints for crypto market data, AI tools, and EUR settlement estimates. All endpoints use the x402 pay-per-call protocol (USDC on Base). Several endpoints are free.

How to use

AsterPay runs as an MCP server. Add it to your OpenClaw configuration:

Option 1: Via mcporter (recommended)

Tell your OpenClaw agent:

Install the AsterPay MCP server: npx -y @anthropic-ai/mcp-remote@latest https://x402-api-production-ba87.up.railway.app/mcp

Option 2: Manual config in clawdbot.json

Add to your clawdbot.json:

{
  "mcpServers": {
    "asterpay": {
      "command": "npx",
      "args": ["-y", "@anthropic-ai/mcp-remote@latest", "https://x402-api-production-ba87.up.railway.app/mcp"]
    }
  }
}

Option 3: Local MCP server

npm install -g @asterpay/mcp-server

Then in clawdbot.json:

{
  "mcpServers": {
    "asterpay": {
      "command": "asterpay-mcp-server"
    }
  }
}

Available tools

Free (no payment required)

| Tool | Description |

|------|------------|

| discover_endpoints | List all available API endpoints with pricing |

| settlement_estimate | Get USDC → EUR conversion estimate with real-time rates |

| check_token_tiers | View $ASTERPAY token discount tiers (up to 60% off) |

| check_wallet_tier | Check your wallet's token balance and discount tier |

Market Data (paid via x402)

| Tool | Cost | Description |

|------|------|------------|

| get_crypto_price | $0.001 | Real-time price, market cap, 24h volume |

| get_ohlcv | $0.005 | OHLCV candlestick data for charting |

| get_trending | $0.002 | Currently trending tokens |

AI Tools (paid via x402)

| Tool | Cost | Description |

|------|------|------------|

| ai_summarize | $0.01 | Summarize any text |

| ai_sentiment | $0.01 | Sentiment analysis (positive/negative/neutral) |

| ai_translate | $0.02 | Translate text to any language |

| ai_code_review | $0.05 | Code review with security analysis |

Crypto Analytics (paid via x402)

| Tool | Cost | Description |

|------|------|------------|

| wallet_score | $0.05 | Wallet reputation and risk score |

| token_analysis | $0.10 | Token security audit (honeypots, rug pulls) |

| whale_alerts | $0.02 | Large crypto movements |

Utilities (paid via x402)

| Tool | Cost | Description |

|------|------|------------|

| generate_qr_code | $0.005 | QR code generation |

| take_screenshot | $0.02 | Webpage screenshots |

| generate_pdf | $0.03 | HTML to PDF conversion |

Example prompts

• "What's the current price of Ethereum?"
• "How much EUR would I get for 1000 USDC?"
• "Analyze the sentiment of this article about Bitcoin"
• "Check if this token contract is safe: 0x..."
• "Show me whale alerts on Base network"
• "What are the trending cryptocurrencies right now?"

How x402 payments work

Paid endpoints return a 402 Payment Required response with payment details. To pay:

1. Install x402 fetch: npm install @x402/fetch
2. Configure a wallet with USDC on Base network
3. The SDK handles payment automatically per API call

Free endpoints (settlement_estimate, discover_endpoints, token tiers) work without any wallet.

About AsterPay

AsterPay is the EUR settlement layer for AI agent commerce:

• USDC → EUR via SEPA Instant in under 10 seconds
• Listed in Coinbase x402 ecosystem — only EU EUR provider
• MiCA-compliant via licensed European partners
• ERC-8004 registered — Agent #16850 on Base
• Certified on Arc Index — on-chain NFT verification

Website: https://asterpay.io

Docs: https://asterpay.io/docs

API: https://x402-api-production-ba87.up.railway.app

GitHub: https://github.com/timolein74/asterpay-api

PyPI: pip install asterpay

npm: @asterpay/mcp-server

Guardrails

• Never send more USDC than explicitly approved by the user
• Always show the settlement estimate before initiating any conversion
• Do not store or log wallet private keys
• Respect x402 payment confirmations — do not retry failed payments without user consent