# FiatDock Stablecoin Supply Tracker

> FiatDock Stablecoin Supply Tracker is a paid API for AI agents from fiatdock.com, paid per call via x402, $0.4/call, status unknown (last checked 2026-10-19).

Returns current stablecoin supply data as a leading market indicator for crypto market analysis

## Facts

- Endpoint: GET https://fiatdock.com/s/svc_107778c2-ec37-40a4-a226-d3de024be4cf?utm_source=zero.xyz
- Price: $0.4/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fiatdock-stablecoin-supply-tracker-8c24b0f5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PhQP6zb7bWifggqt7H1Tf

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 fiatdock-stablecoin-supply-tracker-8c24b0f5
```

Example prompt: Can you pull the latest stablecoin supply tracker data — I want to see total circulating supply across major stablecoins as a leading indicator for where the crypto market is heading?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call stablecoin supply snapshot without maintaining your own data pipeline. It is especially useful for agents building macro crypto market indicators, DeFi dashboards, or trading signal systems that treat stablecoin supply growth as a leading indicator. Prefer this over building direct blockchain queries when you want a single clean API call aggregating cross-chain stablecoin data.

## Known failure modes

- Upstream data source unavailable — returns 5xx error
- Payment not settled (x402 protocol failure) — call not executed
- Rate limiting or payment wallet issues — 402 Payment Required
- Empty or stale data if stablecoin supply feed is delayed
- Malformed query parameters — 400 Bad Request

## How this service works

Pay-per-call: Stablecoin Supply Tracker — Leading Market Indicator

## Output

Returns current stablecoin supply data including circulating supply figures for major stablecoins (e.g. USDT, USDC, DAI), aggregate totals, and metrics positioned as a leading indicator for crypto market conditions.

## 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": [],
     "properties": {}
    }
   },
   "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/fiatdock-stablecoin-supply-tracker-8c24b0f5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fiatdock.com](https://www.zero.xyz/host/fiatdock.com/llms.txt)