# stablecrypto.dev Stablecoin Market Cap Charts

> stablecrypto.dev Stablecoin Market Cap Charts is a paid API for AI agents from stablecrypto.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns historical market cap chart data for stablecoins via DeFiLlama

## Facts

- Endpoint: POST https://stablecrypto.dev/api/defillama/stablecoin-charts
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablecrypto-dev-96cca1b8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Oar81Cv6ctHImj_yL8Tqg

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 stablecrypto-dev-96cca1b8 -d '<json body>'
```

Example prompt: Show me the DeFiLlama market cap chart for USDC over the past 12 months so I can see how its market cap has trended.

## When to prefer this

Use this endpoint when you need historical market cap chart data specifically for stablecoins, sourced from DeFiLlama. Prefer this over general coin price endpoints when the focus is stablecoin market cap trends over time rather than spot prices or non-stable asset data.

## Known failure modes

- Invalid or unsupported stablecoin identifier returns an error
- DeFiLlama upstream API unavailability causes failure
- Missing required parameters results in bad request error
- Rate limiting or payment failure returns 402 or 429 response

## How this service works

Get stablecoin market cap charts

## Output

Returns time-series chart data showing historical market cap values for the requested stablecoin(s), sourced from DeFiLlama, including timestamps and corresponding market cap figures.

## Example request

```json
{}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "stablecoin": {
   "type": "number",
   "description": "Filter by stablecoin ID"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablecrypto-dev-96cca1b8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stablecrypto.dev](https://www.zero.xyz/host/stablecrypto.dev/llms.txt)