# Services from macro-data-api-313m.onrender.com on Zero

> macro-data-api-313m.onrender.com serves 5 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/macro-data-api-313m.onrender.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/macro-data-api-313m.onrender.com/health.json

## Services

- [US Treasury Yield Spread Calculator](https://www.zero.xyz/c/us-treasury-yield-spread-calculator-4b853199/llms.txt): $0.01/call via x402. Returns the spread in percentage points between any two US Treasury yield curve tenors for a given date, and flags whether the spread is inverted.
- [CFTC Commitments of Traders (COT) Positioning API](https://www.zero.xyz/c/cftc-commitments-of-traders-cot-positioning-api-04466d3d/llms.txt): $0.02/call via x402. Returns CFTC Commitments of Traders positioning data (non-commercial, commercial, and small trader long/short/net positions) for a specified futures market, with week-over-week changes and optional historical weeks.
- [Macro Data API – ECB FX Reference Rate](https://www.zero.xyz/c/macro-data-api-ecb-fx-reference-rate-15f635b0/llms.txt): $0.011/call via x402. Returns the ECB euro reference exchange rate between two currencies for a given date, including cross rates such as CHF/USD, with source attribution.
- [US Treasury Yield Curve API](https://www.zero.xyz/c/us-treasury-yield-curve-api-f9a03b93/llms.txt): $0.01/call via x402. Returns the US Treasury par yield curve (1 month to 30 years) for a given date, including 2y-10y and 3m-10y spreads and yield curve shape classification (normal, flat, or inverted).
- [Macro Data API – Currency Conversion via ECB Rates](https://www.zero.xyz/c/macro-data-api-currency-conversion-via-ecb-rates-80abc3d6/llms.txt): $0.011/call via x402. Converts a monetary amount from one currency to another using ECB euro reference rates for a specified or latest available date.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)