# CEX Solvency & Proof-of-Reserves Risk Scorer

> CEX Solvency & Proof-of-Reserves Risk Scorer is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns a deterministic solvency score (0-100), risk flags, reserve totals, own-token concentration, clean-asset ratio, and peer rank for a named centralized cryptocurrency exchange.

## Facts

- Endpoint: GET https://api.agentstools.dev/cex/solvency
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cex-solvency-proof-of-reserves-risk-scorer-92e0e0d5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_v-Zh4wpBYcwp90aDPmyvQ

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-92e0e0d5
```

Example prompt: Can you run a solvency check on Kraken — I want to know its reserve totals, own-token concentration, clean-asset ratio, and overall solvency score so I can gauge the counterparty risk before moving funds there?

## When to prefer this

Use this endpoint when you need a fast, single-call counterparty risk verdict on a centralized crypto exchange — especially when checking for FTX-style own-token concentration risk, comparing peer solvency scores, or evaluating whether an exchange's reserves look healthy before depositing funds. Prefer this over manual DefiLlama browsing when you need a structured, scoreable output for agent decision-making or user-facing risk summaries.

## Known failure modes

- Unknown or unsupported exchange name returns an error or empty result
- Exchange not tracked by DefiLlama returns no reserve data
- Stale reserve data if DefiLlama upstream is delayed
- Ambiguous exchange slug resolves to wrong entity
- Network timeout or upstream DefiLlama API unavailability

## 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 structured JSON object containing: a deterministic solvency_score (0-100) with a rating label, total reserve amounts broken down by asset, own-token concentration percentage (flagging FTX/FTT-style risk), clean-asset ratio, netflow stress indicator, leverage metric, a list of risk flags, and a peer rank among tracked exchanges. Data is sourced from DefiLlama CEX Transparency reserves; 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-92e0e0d5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentstools.dev](https://www.zero.xyz/host/api.agentstools.dev/llms.txt)