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:
- Install x402 fetch:
npm install @x402/fetch - Configure a wallet with USDC on Base network
- 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