# Services from x402.asterpay.io on Zero

> x402.asterpay.io serves 13 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/x402.asterpay.io
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402.asterpay.io/health.json

## Services

- [AsterPay Crypto Price API](https://www.zero.xyz/c/asterpay-crypto-price-api-c42e951a/llms.txt): $0.005/call via x402. Returns real-time cryptocurrency price data including USD/EUR price, 24h change, market cap, and volume for a given token symbol
- [AsterPay Agent-Readiness Scanner](https://www.zero.xyz/c/asterpay-agent-readiness-scanner-aeeaed17/llms.txt): $0.02/call via x402. Scans any public website and returns a 0-100 agent-readiness score across six dimensions: MCP server, agent.json, llms.txt, OpenAPI validity, JSON-LD catalog, and x402/MPP payability.
- [AsterPay Deep Fact-Check API](https://www.zero.xyz/c/asterpay-deep-fact-check-api-c36ffb29/llms.txt): $0.001/call via x402. Performs deep AI-powered fact-checking of up to 5 claims, returning per-claim verdicts (supported/contradicted/unverified), evidence summaries, confidence scores, and an overall verdict.
- [AsterPay AI Sentiment Analysis](https://www.zero.xyz/c/asterpay-ai-sentiment-analysis-58aa8579/llms.txt): $0.01/call via x402. Analyzes text to return a sentiment classification (positive/negative/neutral), a numeric sentiment score, and emotion breakdown
- [AsterPay USDC-to-EUR Offramp Quote Lock](https://www.zero.xyz/c/asterpay-usdc-to-eur-offramp-quote-lock-965f8b24/llms.txt): $0.005/call via x402. Locks a USDC-to-EUR settlement quote, returning a signed quote_id, fixed EUR rate, net EUR amount, fees, and SEPA delivery details.
- [AsterPay Fact-Check API](https://www.zero.xyz/c/asterpay-fact-check-api-84be299a/llms.txt): $0.001/call via x402. Verifies factual claims against sources using an LLM, returning a verdict, evidence, confidence score, and summary
- [AsterPay Deep KYA Batch Trust Analysis](https://www.zero.xyz/c/asterpay-deep-kya-batch-trust-analysis-162ef062/llms.txt): $0.01/call via x402. Returns deep multi-component KYA (Know Your Agent) trust scores, tier classification, and sanctions status for one or more AI agent wallet addresses in a single batch call
- [AsterPay ERC-20 Token Security Analyzer](https://www.zero.xyz/c/asterpay-erc-20-token-security-analyzer-59cab5dd/llms.txt): $0.1/call via x402. Performs a security analysis on any ERC-20 token contract by address, returning risk flags, holder data, liquidity, and a security score
- [AsterPay x402 USDC-to-EUR Offramp Estimate](https://www.zero.xyz/c/asterpay-x402-usdc-to-eur-offramp-estimate-a9e9b66f/llms.txt): $0.005/call via x402. Returns a real-time estimate for converting USDC to EUR, including exchange rate, output EUR amount, fees, and SEPA delivery time.
- [AsterPay Sentiment Analysis](https://www.zero.xyz/c/asterpay-sentiment-analysis-df490f6d/llms.txt): $0.004/call via x402. Analyzes the sentiment of a text input and returns a positive/negative/neutral classification with a numeric score and optional emotion breakdown.
- [AsterPay Quick KYA Trust Score](https://www.zero.xyz/c/asterpay-quick-kya-trust-score-ac1122c2/llms.txt): $0.005/call via x402. Returns a quick Know-Your-Agent (KYA) trust score (0-100), tier classification, and sanctions status for any AI agent or crypto wallet address.
- [AsterPay Deep KYA Trust Score Analysis](https://www.zero.xyz/c/asterpay-deep-kya-trust-score-analysis-426d74f6/llms.txt): $0.01/call via x402. Returns a comprehensive 7-component trust score (0-100), risk tier, sanctions status, ERC-8004 identity, InsumerAPI attestations, and payment eligibility for an AI agent or wallet address.
- [AsterPay AI Code Review](https://www.zero.xyz/c/asterpay-ai-code-review-d6077d46/llms.txt): $0.001/call via x402. Analyzes submitted code and returns a quality score, line-level issues with severity and suggestions, and a human-readable summary

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)