# SYNTHORA DeFi Yields Risk-Ranked Stablecoin APY Feed

> SYNTHORA DeFi Yields Risk-Ranked Stablecoin APY Feed is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Returns stablecoin DeFi yield pools ranked by APY with a risk outlier detector that flags pools offering 3x or more above their class median APY, filtered to TVL >= $10M, sourced from DefiLlama.

## Facts

- Endpoint: POST https://api.hergertsynthora.com/v1/defi-yields
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-defi-yields-risk-ranked-stablecoin-apy-feed-e664251a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YDTesnLDUrG-3oA5-bGQE

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 synthora-defi-yields-risk-ranked-stablecoin-apy-feed-e664251a -d '<json body>'
```

Example prompt: Show me the top stablecoin DeFi yield pools right now, ranked by APY, and flag any that are paying 3x or more above their category median — I only want pools with at least $10M TVL so I'm not looking at tiny, risky pools.

## When to prefer this

Choose this endpoint when you need a ready-made, risk-annotated stablecoin yield ranking without building your own DefiLlama integration. Particularly useful when you want automatic outlier detection baked in (3x median rule) rather than raw APY data. Prefer this over raw DefiLlama queries when your agent needs to quickly surface both opportunity and risk signal in a single call, filtered to liquid pools with meaningful TVL.

## Known failure modes

- DefiLlama upstream unavailability causing stale or missing data
- No pools meeting the TVL >= $10M threshold for a given stablecoin category
- Malformed input string returning a 400 validation error
- Payment failure via x402 resulting in a 402 response and no data returned
- Rate limiting or timeout if DefiLlama source is slow to respond

## How this service works

SYNTHORA defi-yields: stablecoin DeFi yields ranked with a risk outlier detector — APY vs class median (>=3x median = the excess yield IS the risk price). Only pools with TVL >= $10M. Source: DefiLlama, free, no key. $0.005 USDC x402 Base.

## Output

A ranked list of stablecoin DeFi yield pools (TVL >= $10M) showing each pool's APY, TVL, protocol, and a risk outlier flag for pools where APY is >= 3x the class median. The median APY per pool class is also returned to contextualize the ranking.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "description": "SYNTHORA defi-yields: stablecoin DeFi yields ranked with a risk outlier detector — APY vs class median (>=3x median = the excess yield IS the risk price). Only pools with TVL >= $10M. Source: DefiLlam"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-defi-yields-risk-ranked-stablecoin-apy-feed-e664251a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hergertsynthora.com](https://www.zero.xyz/host/api.hergertsynthora.com/llms.txt)