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three.ws Stablecoin Market Data
x402
three.ws Stablecoin Market Data is a paid API for AI agents from three.ws, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-23).
Returns real-time stablecoin market data including total market cap, individual stablecoin prices, circulating supply, peg mechanism, and chain counts.
Price / call$0.001
Success—
StatusUnknown
How this service works
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Output
A JSON object containing the total stablecoin market cap in USD and an array of stablecoins, each with an ID, name, symbol, current price, circulating supply in USD, number of chains deployed on, and peg mechanism type.
Example use cases
DeFi dashboard stablecoin overview
“Give me a snapshot of the stablecoin market right now — total market cap, top stablecoins by circulating supply, their current prices, and what peg mechanism each one uses.”
Chain coverage analysis for USDT
“How many blockchains is Tether currently deployed on, and what's its circulating supply in USD?”
Stablecoin peg mechanism research
“I'm researching stablecoin designs — can you list all the major stablecoins and tell me whether each one is fiat-backed, algorithmic, or something else, along with their current market caps?”
Technical details
Endpoint
GEThttps://three.ws/api/x402/market-stablecoins?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a broad stablecoin market overview including cross-chain deployment counts and peg mechanism classification in a single call. It is especially useful for DeFi dashboards, research tools, or agents that need to reason about stablecoin liquidity and risk across chains. Prefer this over generic crypto price APIs when peg mechanism metadata and chain coverage are specifically needed.
Side effects
- Payment not provided or insufficient USDC (HTTP 402 — payment required)
- Upstream data provider unavailable (HTTP 503 — service unavailable)
- Empty or partial stablecoin list if data is being refreshed
- Rate limiting if requests are made too frequently
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"total_mcap": 254000000000,
"stablecoins": [
{
"id": "1",
"name": "Tether",
"price": 0.9998,
"symbol": "USDT",
"chain_count": 94,
"peg_mechanism": "fiat-backed",
"circulating_usd": 156000000000
}
]
}
}Tags
x402
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