# Vaults.fyi Historical APY Time-Series

> Vaults.fyi Historical APY Time-Series is a paid API for AI agents from api.vaults.fyi, paid per call via x402, $0.102/call, status unknown (last checked 2026-10-11).

Retrieves time-series historical APY data for a specific vault, breaking down base yield and rewards components over a customizable time range

## Facts

- Endpoint: HEAD https://api.vaults.fyi/v2/historical/:network/:vaultId/apy?utm_source=zero.xyz
- Price: $0.102/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vaults-fyi-historical-apy-time-series-bd4989ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wpWekgydNcsrG2ZisTGUH

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

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability vaults-fyi-historical-apy-time-series-bd4989ce -d '<json body>'
```

Example prompt: Can you pull the historical APY breakdown for vault 0xabc123 on Ethereum from vaults.fyi, showing both base yield and rewards components over the last 90 days?

## When to prefer this

Use this endpoint when you need granular time-series APY data for a specific vault to analyze yield trends, volatility, or the historical split between base yield and reward incentives. Prefer this over the combined APY+TVL endpoint when you specifically need APY decomposition over time without TVL data, or when you need a flexible custom time range.

## Known failure modes

- Invalid network identifier returns 404 or empty result
- Unknown vault ID returns not found error
- Unsupported date range or malformed date parameters return 400 bad request
- Network or vault combination not tracked by vaults.fyi returns empty dataset
- Rate limit exceeded returns 429 error

## How this service works

Retrieves time-series historical APY data for a specific vault, including base yield and rewards components over a customizable time range

## Output

Returns a time-series array of APY data points for the specified vault, with each entry containing a timestamp and APY values segmented into base yield and rewards components, enabling trend analysis over the requested date range.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vaults-fyi-historical-apy-time-series-bd4989ce/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vaults.fyi](https://www.zero.xyz/host/api.vaults.fyi/llms.txt)