# CEX Solvency & Proof-of-Reserves Risk Scorer

> CEX Solvency & Proof-of-Reserves Risk Scorer is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns a deterministic 0-100 solvency score, risk flags, and peer ranking for a centralized crypto exchange based on reserve data fused from DefiLlama CEX Transparency.

## Facts

- Endpoint: GET https://payai.agentstools.dev/cex/solvency
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cex-solvency-proof-of-reserves-risk-scorer-0403a934
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5jmIEyj7JccrUWZufbuh2

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 cex-solvency-proof-of-reserves-risk-scorer-0403a934
```

Example prompt: Can you run a solvency check on Bybit and tell me the risk score, any red flags like high own-token concentration, and how it ranks against peers?

## When to prefer this

Use this endpoint when you need a fast, keyless, single-call counterparty risk verdict on a centralized exchange — particularly when you want a composite score rather than raw reserve data alone. It is best for pre-deposit due diligence, periodic exchange health monitoring, or comparing peer rankings without building your own scoring model. Prefer alternatives if you need customer liability data, full PoR attestation audit trails, or DEX/DeFi protocol risk assessment.

## Known failure modes

- Unknown or misspelled exchange name returns a 404 or empty result
- Exchange not tracked by DefiLlama CEX Transparency returns no reserve data
- Stale reserve data if DefiLlama upstream hasn't updated recently
- Payment failure (x402) if USDC balance is insufficient
- Rate limiting if too many calls are made rapidly

## How this service works

Centralized-exchange (CEX) solvency / proof-of-reserves counterparty-risk verdict in one call: given an exchange name, returns reserve totals, own-token concentration (the FTX/FTT pattern), clean-asset ratio, netflow stress, leverage and a deterministic 0-100 solvency_score with a rating, risk flags and a peer rank. Fused from the keyless DefiLlama CEX Transparency reserve aggregate. Reserves are a PROXY: customer liabilities and PoR-attestation quality are not visible.

## Output

A JSON object containing: a deterministic solvency_score (0-100) with a rating label, total reserve figures, own-token concentration percentage (flagging FTX/FTT-style patterns), clean-asset ratio, netflow stress indicator, leverage metric, enumerated risk flags, and a peer rank relative to other tracked exchanges. Data is sourced from DefiLlama's CEX Transparency reserve aggregate; customer liabilities and PoR attestation quality are not included.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "cex"
     ],
     "properties": {
      "cex": {
       "type": "string",
       "description": "Exchange name, slug or CoinGecko id (e.g. binance, okx, bybit, kraken, crypto.com)."
      },
      "exchange": {
       "type": "string",
       "description": "Alias of cex."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cex-solvency-proof-of-reserves-risk-scorer-0403a934/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from payai.agentstools.dev](https://www.zero.xyz/host/payai.agentstools.dev/llms.txt)