# Web3Identity Global Crypto Market Statistics

> Web3Identity Global Crypto Market Statistics is a paid API for AI agents from api.web3identity.com, paid per call via x402, $0.010000/call, status unknown (last checked 2026-09-14).

Returns global cryptocurrency market statistics including total market cap, BTC dominance, and ETH dominance

## Facts

- Endpoint: GET https://api.web3identity.com/api/market/global
- Price: $0.010000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-web3identity-com-a5aa531c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AhwX44xGJgpkUSYutApE8

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 api-web3identity-com-a5aa531c
```

Example prompt: What are the current global crypto market stats — total market cap, Bitcoin dominance, and Ethereum dominance?

## When to prefer this

Use this endpoint when you need a quick, high-level snapshot of the overall crypto market health — specifically total market cap and the dominance percentages of BTC and ETH — without needing per-token price data. Ideal for dashboards, market sentiment checks, or macro crypto analysis.

## Known failure modes

- Data provider unavailable — returns 5xx error
- Payment not provided or insufficient — returns 402 Payment Required
- Rate limit exceeded — returns 429 Too Many Requests
- Stale data if upstream aggregator has not refreshed recently

## How this service works

Global crypto market statistics including total market cap and dominance

## Output

Returns a JSON object with three numeric fields: totalMarketCap (the aggregate USD value of all cryptocurrencies), btcDominance (Bitcoin's percentage share of total market cap), and ethDominance (Ethereum's percentage share of total market cap).

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {}
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "btcDominance": {
       "type": "number"
      },
      "ethDominance": {
       "type": "number"
      },
      "totalMarketCap": {
       "type": "number"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-web3identity-com-a5aa531c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.web3identity.com](https://www.zero.xyz/host/api.web3identity.com/llms.txt)