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4SEC Crypto Market Data API — Token Lookup by ID
x402
4SEC Crypto Market Data API — Token Lookup by ID is a paid API for AI agents from api.foursec.xyz, paid per call via x402, $0.005/call, status down (last checked 2026-09-15).
Fetches real-time aggregated crypto market data for a specific token by ID, sourced from multiple DEXes, paid per-request with USDC on Base via x402.
Price / call$0.005
Success—
StatusDown
How this service works
Real-time multi-DEX aggregated crypto market data. Pay per request with USDC on Base via x402 protocol.
Output
Returns a JSON object containing the token's ID, name, symbol, current price (in USD or base currency), and market cap, aggregated from multiple decentralized exchanges in real time.
Example use cases
Real-time DeFi token price check
“What's the current price and market cap of the token with ID 'uniswap' right now? Pull it from multi-DEX aggregated data.”
Portfolio valuation enrichment
“I need to update my portfolio tracker — fetch the latest price and market cap for 'bitcoin' so I can recalculate my holdings' value.”
Trading bot price feed
“Get me the real-time price for the token ID 'chainlink' from aggregated DEX sources so I can decide whether to trigger a trade.”
Technical details
Endpoint
GEThttps://api.foursec.xyz/api/v1/market/%7Bid%7DWhen to prefer
Choose this endpoint when you need real-time, multi-DEX aggregated price and market cap data for a specific token and want a pay-per-request model with no subscription — especially useful in agentic workflows on Base where USDC micropayments via x402 are already supported.
Side effects
- Invalid or unknown token ID returns an error or empty response
- Payment failure via x402 protocol causes request rejection
- Token not listed on any supported DEX results in no data
- Network or API downtime causes request timeout
- Malformed ID parameter causes a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "object",
"example": {
"id": {
"type": "string"
},
"name": {
"type": "string"
},
"symbol": {
"type": "string"
},
"market_cap": {
"type": "number"
},
"current_price": {
"type": "number"
}
}
}Tags
x402
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