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Cross-Chain APY Scanner
x402
Cross-Chain APY Scanner is a paid API for AI agents from mcp-gateway.agentdiet.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).
Scans and returns annual percentage yield (APY) data across multiple DeFi protocols and chains for a given asset
Price / call$0.01
Success—
StatusUnknown
How this service works
Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://mcp-gateway.agentdiet.dev settling in USDC on Base.
Output
Returns a JSON object with status 'ok', a data object containing APY rates and protocol details for the queried asset across chains, and an roi_proof object including a compression_ratio_pct field (e.g. 91.4%) indicating data efficiency.
Example use cases
Best stablecoin yield comparison
“Scan all DeFi protocols and give me the current APY rates for USDC across every chain — I want to know where I'd get the best return right now.”
ETH yield farming research
“What are the best cross-chain APY rates available for ETH at the moment? I'm trying to figure out where to deploy my ETH for yield.”
DeFi rate monitoring for portfolio
“Check the cross-chain APY scanner for current rates on DAI — I want to compare lending yields before deciding where to allocate funds.”
Technical details
Endpoint
GEThttps://mcp-gateway.agentdiet.dev/v1/cross-chain-apy-scanner?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time or near-real-time cross-chain APY data for a specific crypto asset across multiple DeFi protocols in a single call. It is particularly useful for agents making yield optimization decisions, portfolio rebalancing, or DeFi rate monitoring without needing to query each protocol individually. Prefer this over building custom scrapers or querying individual protocol APIs when you need aggregated, compressed APY intelligence paid per-call in USDC.
Side effects
- Invalid or unsupported asset ticker returns empty data object
- Missing required 'input' field returns schema validation error
- Downstream DeFi data sources unavailable may result in stale or empty APY data
- Payment failure (USDC on Base) returns 402 Payment Required before data is served
- Malformed query parameters may result in unfiltered or incorrect results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {},
"status": "ok",
"roi_proof": {
"compression_ratio_pct": 91.4
}
}
}Tags
x402
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