# Stablecoin Market Cap Historical Data

> Stablecoin Market Cap Historical Data is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-20).

Returns total stablecoin market capitalization with historical time series, 7/30/90/365-day percent changes, and breakdown by peg currency (USD, EUR, GBP, etc.) sourced from DefiLlama.

## Facts

- Endpoint: POST https://api.vextorium.com/estables-historico-pago?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablecoin-market-cap-historical-data-3524ebeb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_i5RVzk1kZwPLXQPuoTtzi

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-market-cap-historical-data-3524ebeb -d '<json body>'
```

Example prompt: Pull the stablecoin market cap data from DefiLlama for the last 90 days, including the percent changes over 7, 30, 90, and 365 days and the breakdown by peg currency like USD and EUR.

## When to prefer this

Choose this endpoint when you need stablecoin market cap data with historical time series and multi-currency peg breakdown from DefiLlama. It is ideal for macro analysis of crypto liquidity, tracking stablecoin inflows/outflows as a market sentiment indicator, or building dashboards that show the composition of the stablecoin market across USD, EUR, and other fiat pegs.

## Known failure modes

- Invalid 'dias' value outside 7-1825 range returns an error or empty series
- DefiLlama upstream outage may result in stale or missing data
- Malformed request body (wrong bodyType or missing required fields) returns a 400-level error
- Some peg currency buckets may be null if no stablecoins exist for that currency at the requested time

## How this service works

Total stablecoin market capitalization (crypto's dry powder) with series, 7/30/90/365-day change and split by peg currency (USD, EUR...). Live from DefiLlama.

## Output

Returns a JSON object with: current date, total stablecoin market cap in USD, a time series array of daily USD values, percent changes at 7/30/90/365-day intervals, and a breakdown of market cap by peg currency (USD, EUR, GBP, JPY, RUB, CHF, ARS, AUD, CAD, MXN, PHP, SGD, TRY, BRL, and VAR). Data is sourced from DefiLlama Stablecoins.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "dias": {
   "type": "integer",
   "description": "Days of series (7-1825, default 365)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "fecha": "2026-10-02",
  "serie": [
   {
    "usd": 310089527005,
    "fecha": "2026-07-04"
   },
   {
    "usd": 309998372233,
    "fecha": "2026-07-05"
   }
  ],
  "fuente": "DefiLlama Stablecoins",
  "cambio_pct": {
   "7d": 0.99,
   "30d": 1.41,
   "90d": 0.99,
   "365d": 4.55
  },
  "por_divisa_usd": {
   "ARS": 8965691,
   "AUD": 13352736,
   "CAD": 4071075,
   "CHF": 44217690,
   "EUR": 805055436,
   "GBP": 29577409,
   "JPY": 158008707,
   "MXN": 1474061,
   "PHP": 3607640,
   "RUB": 560457250,
   "SGD": 13129144,
   "TRY": 6073110,
   "USD": 311477933885,
   "VAR": 12245301,
   "REAL": 25680586
  },
  "capitalizacion_usd": 313165264074
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablecoin-market-cap-historical-data-3524ebeb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)