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Ozmium Tokenized U.S. Stocks on Base (B20) Directory
x402
Ozmium Tokenized U.S. Stocks on Base (B20) Directory is a paid API for AI agents from ozmium.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-16).
Returns the full list of Coinbase-issued tokenized U.S. stocks on Base, including each token's contract address, underlying ticker, live Chainlink USD price with timestamp, and minted supply.
Price / call$0.001
Success—
StatusUnknown
How this service works
Coinbase's tokenized U.S. stocks on Base (B20): each token's contract, underlying ticker, live Chainlink 24/5 price (USD) with updatedAt, and minted supply (0 = no secondary liquidity yet; the quote decides). GET /v1/stocks. Secondary trading is permissionless on-chain; Regulation S, not for U.S. persons or other restricted jurisdictions.
Output
A JSON list of all Coinbase-issued tokenized U.S. stock tokens on Base (B20 program), each entry containing: the ERC-20 contract address on Base, the underlying stock ticker symbol (e.g. AAPL, TSLA), the live Chainlink USD price and the timestamp it was last updated (24/5 trading hours), and the current minted supply (0 indicates no secondary market liquidity yet).
Example use cases
Pre-trade on-chain equity research
“Before I swap on-chain, show me all the tokenized U.S. stocks available on Base with their live Chainlink prices and contract addresses — I want to know which ones have actual minted supply and aren't just zero-liquidity placeholders.”
DeFi portfolio price check
“I hold some B20 tokenized stock tokens — can you fetch their current Chainlink USD prices and tell me when each price was last updated, so I can mark my portfolio to market?”
Smart contract integration lookup
“I'm building a DeFi app on Base that uses Coinbase's tokenized stocks — can you give me the contract addresses and underlying tickers for all available B20 tokens so I can integrate them?”
Technical details
Endpoint
GEThttps://ozmium.org/v1/stocksWhen to prefer
Choose this endpoint when you need a single authoritative directory of all Coinbase-issued tokenized U.S. equities on Base, including live Chainlink prices and contract addresses — ideal for pre-trade research, DeFi integration, portfolio valuation, or arbitrage discovery involving on-chain real-world assets. Prefer this over generic DEX price APIs when you specifically need the official B20 contract registry or Chainlink-sourced prices for tokenized stocks.
Side effects
- API returns 402 Payment Required if x402 USDC micropayment is not attached
- Price data may be stale outside 24/5 market hours (Chainlink feeds pause on weekends/holidays)
- Minted supply of 0 does not imply the token is unavailable — it means no secondary liquidity exists yet
- Network errors or Base RPC timeouts may result in incomplete or cached data
- Regulation S compliance: the endpoint does not serve U.S. persons; agents operating in restricted jurisdictions may be blocked or data may be withheld
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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