# PoolProof Yield Pool Safety Checker

> PoolProof Yield Pool Safety Checker is a paid API for AI agents from poolproof.qalibr.ru:7443, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Analyzes a DeFi yield pool for safety risks including asset peg health, yield sustainability, emission dependence, and exit liquidity depth

## Facts

- Endpoint: POST https://poolproof.qalibr.ru:7443/v1/pool
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/poolproof-yield-pool-safety-checker-72d69fd2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c15WEla26zZJxlOtpmcnO

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 poolproof-yield-pool-safety-checker-72d69fd2 -d '<json body>'
```

Example prompt: Before I put $50k into this pool, can you run a PoolProof safety check on it — I want to know if any underlying assets have depeg risk, whether the yield is sustainable or just emission-driven, and how deep the exit liquidity is at my size?

## When to prefer this

Use this endpoint when you need a structured, multi-dimensional safety assessment of a DeFi yield pool before deploying capital — specifically when you need peg health, yield sustainability, emission dependence, and exit depth all in one call. Prefer this over raw TVL lookups or price feeds when you want actionable risk flags rather than raw numbers.

## Known failure modes

- Pool or asset not recognized — returns error or empty verdict
- Insufficient on-chain data for yield history — may return OPAQUE flag
- Chain or protocol not supported — endpoint returns error
- Stale liquidity data causing inaccurate exit depth assessment
- Rate limiting or payment failure via x402 protocol

## How this service works

Yield pool safety: peg of every underlying asset, yield sustainability, emission dependence, exit depth

## Output

Returns a JSON object with an 'ok' boolean, a 'verdict' string summarizing overall safety, an array of 'flags' (each with a code like DEPEG, OPAQUE, SPIKE, UNSTABLE, EMISSION, or THIN and a human-readable message), and a 'disclaimer'. An empty flags array means the pool passed all checks.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
   "ok": {
    "type": "boolean"
   },
   "flags": {
    "type": "array",
    "items": {
     "type": "object",
     "properties": {
      "msg": {
       "type": "string"
      },
      "code": {
       "type": "string"
      }
     }
    },
    "description": "Empty means nothing failed the checks"
   },
   "verdict": {
    "type": "string"
   },
   "disclaimer": {
    "type": "string"
   }
  }
 },
 "description": "Peg of every underlying asset, yield vs its own history, emission dependence and exit depth. Flags DEPEG, OPAQUE, SPIKE, UNSTABLE, EMISSION, THIN."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/poolproof-yield-pool-safety-checker-72d69fd2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from poolproof.qalibr.ru:7443](https://www.zero.xyz/host/poolproof.qalibr.ru%3A7443/llms.txt)