# Stablecoin Dominance API

> Stablecoin Dominance API is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).

Returns the market share of each major stablecoin as a percentage of total stablecoin market cap for concentration and macro risk analysis.

## Facts

- Endpoint: GET https://api.x402node.dev/stablecoin/dominance
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablecoin-dominance-api-b694e4cb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bjHS7OKmGxnQFtBuHFp36

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 stablecoin-dominance-api-b694e4cb
```

Example prompt: What's the current market share breakdown for the major stablecoins — I want to see how dominant USDT is versus USDC and the others as a percentage of total stablecoin market cap.

## When to prefer this

Use this endpoint when you need a quick macro read on stablecoin market concentration, specifically the dominance share of USDT or other major stablecoins as a fraction of total stablecoin market cap. Prefer this over general crypto market data endpoints when the query is specifically about stablecoin relative market share or systemic concentration risk.

## Known failure modes

- Data provider outage returns 503 or empty payload
- Stale data if upstream market cap feed is delayed
- Payment of 0.008 USDC not fulfilled returns 402 Payment Required
- Rate limiting if called excessively without payment

## How this service works

Market share of each major stablecoin as a percentage of total stablecoin market cap. For concentration and macro risk reads. Live stablecoin dominance. stablecoin dominance, usdt share, market share, concentration, stablecoin macro Accepts payment on Base or Solana — either network works.

## Output

Returns live market share percentages for each major stablecoin (e.g. USDT, USDC, DAI, BUSD) relative to total stablecoin market capitalization, enabling concentration risk assessment and macro stablecoin dominance reads.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "string",
       "description": "max rows (default 10)"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablecoin-dominance-api-b694e4cb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)