Cross-Asset Intelligence API
AI-powered cross-market financial analysis. Crypto + traditional finance in one API.
What This Skill Does
Connects your agent to 22 paid analysis endpoints spanning 6 domains:
- BTC-Equity Correlation — Pearson correlation between BTC and stock indices
- Cross-Market Risk Score — Composite 0-100 score from BTC volatility, VIX, bonds, macro
- Crypto News Impact — Top 3 market-moving stories ranked by impact
- Macro Environment — Fed rate, CPI, unemployment, GDP, yields with AI analysis
- Token Safety — SAFE/CAUTION/DANGER verdict for any ERC-20 contract
- Daily Briefing — All-in-one cross-asset market snapshot
Payment
All endpoints use x402 micropayments (USDC on Base). Your agent's wallet pays automatically per request. No API key, no subscription, no signup.
| Tier | Price Range | AI Model | Speed |
|---|---|---|---|
| quick | $0.001-0.002 | None (pure math) | <500ms |
| insight | $0.03-0.06 | Claude Haiku | <5s |
| analysis | $0.08-0.20 | Claude Sonnet | <10s |
| pro | $0.80-1.00 | Claude Opus | cached 2h |
Setup
Your agent needs a funded wallet (USDC on Base). Set your wallet's private key as an environment variable:
- Variable name:
WALLET_SIGNING_KEY - Format: hex (32-byte private key)
- Recommended: Use a dedicated agent wallet with limited funds — not your main wallet
Store the value in .env (gitignored) or a secret manager. Never share or commit it.
Usage
All endpoints are accessible via HTTP GET through Bankr x402 Cloud:
Base URL: https://x402.bankr.bot/0x98ee945dfa6bb8e9ed9f9b6ae56eb82bcc82f0aa/
Quick examples
# BTC vs S&P500 correlation (30 days)
GET /correlation-quick?index=sp500&period_days=30
# Cross-market risk score
GET /risk-score-quick
# Token safety check
GET /token-safety-quick?chain=ethereum&address=0x...
# Daily market briefing
GET /daily-briefing-quick
# With AI analysis (Claude Sonnet)
GET /correlation-analysis?index=nasdaq&period_days=90&lang=ja
Available endpoints
Correlation: correlation-quick, correlation-insight, correlation-analysis, correlation-pro
- Params:
index(sp500/nasdaq/nikkei225/dax),period_days(7/14/30/90),lang(en/ja)
Risk Score: risk-score-quick, risk-score-insight, risk-score-analysis, risk-score-pro
- Params:
lang(en/ja)
Top News: top-news-insight, top-news-analysis, top-news-pro
- Params:
lang(en/ja)
Macro Report: macro-report-insight, macro-report-analysis, macro-report-pro
- Params:
lang(en/ja)
Token Safety: token-safety-quick, token-safety-insight, token-safety-analysis, token-safety-pro
- Params:
chain(ethereum/base/etc),address(contract address),lang(en/ja)
Daily Briefing: daily-briefing-quick, daily-briefing-insight, daily-briefing-analysis, daily-briefing-pro
- Params:
lang(en/ja)
Response Format
All responses include:
- Core analysis data (correlation coefficients, risk scores, news items, etc.)
upgrade_available— links to higher-tier analysis with pricingmeta.data_sources— transparency on where data comes frommeta.data_freshness— timestamp of underlying datadisclaimer— not financial advice
Why This Over Raw Data APIs
- Cross-asset analysis — BTC vs stock indices, not just crypto or just stocks
- AI judgment included — not raw numbers, but interpreted analysis
- 4 pricing tiers — from $0.001 machine-readable data to $0.80 institutional reports
- x402 native — no API key dance, just pay and get data
- Bilingual — English and Japanese output
Differentiators
- Only x402 API offering crypto × traditional finance cross-asset AI analysis
- Historical data analysis capabilities expanding
- Claude Opus institutional-grade reports at pro tier
- Sub-second quick tier for automated monitoring and alerts
Security & Privacy
This skill contains no executable code. It is a pure markdown description of an external API. All data processing happens server-side on secured infrastructure. No local files are read, written, or executed.