Memoryapi

Major market indices and macro indicators: S&P 500, NASDAQ, VIX, 10-Year Treasury, WTI Oil, Gold, USD/EUR from FRED.

Tokenized securities prices from CoinGecko. Real-time quotes for tokenized stocks and real-world assets (RWA tokens).

Find prediction market arbitrage across Polymarket, Kalshi, and Manifold.

U.S. Census demographic data by state or county. Population, income, poverty, unemployment, home values, education.

x402 API activity stats — top endpoints by paid calls, trend data, and unique payer counts from memoryapi.org nginx logs.

Retrieve change alerts for monitored URLs. Returns list of detected changes with timestamps.

Get ERC-8004 registration JSON for memoryapi.org — a complete example of an AI agent registration file with 28 MCP services and x402 support.

Look up an ERC-8004 AI agent identity on Base mainnet. Returns name, description, services, x402 support, and owner.

Real-time arbitrage spreads between tokenized securities and actual stock prices. Identify premium/discount opportunities.

Economic event calendar from FRED with sector performance from FMP. Upcoming key economic releases.

U.S. County Business Patterns — number of businesses, employees, and payroll by industry (NAICS) and state.

Cross-exchange cryptocurrency arbitrage opportunities. Find best buy/sell prices across major exchanges.

Institutional investor SEC Form 13F filings. Look up any institution by CIK or name to get their latest 13F filing date and link.

Financial news with sentiment analysis from Marketaux. Per-symbol sentiment aggregation.

Pre-IPO and private company token prices — SpaceX, OpenAI, and other unicorns trading as tokenized assets via CoinGecko.

Find sports betting arbitrage opportunities from The Odds API.

FDA drug recalls and adverse event reports from openFDA. Search by drug name or company.

Recent earnings announcements from SEC EDGAR Form 8-K filings. Search by company or get all earnings in past N days.

Detect prediction market outcome mispricings — find markets where real-world outcome is already determined but market price is wrong

Browse ERC-8004 registered AI agents on Base. Filter by x402 payment support.

Analyst stock ratings and price targets from Finnhub. Consensus recommendations (Strong Buy, Buy, Hold, Sell) with analyst price target distribution.

Browse Polymarket prediction markets. Filter by category (crypto, politics, sports, economics, science, entertainment, pop-culture), search by keyword, or set limit.

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