# SYNTHORA Stablecoin Supply Monitor

> SYNTHORA Stablecoin Supply Monitor is a paid API for AI agents from stablecoin-supply.hergertsynthora.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Returns live circulating supply, price, and peg deviation in basis points for major stablecoins (USDT, USDC, DAI), with a depeg alert flag when deviation exceeds 50 bps

## Facts

- Endpoint: POST https://stablecoin-supply.hergertsynthora.com/service?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-stablecoin-supply-monitor-ebd192b3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eStAVrAuRo5wtVfDxyU8H

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 synthora-stablecoin-supply-monitor-ebd192b3 -d '<json body>'
```

Example prompt: What's the current circulating supply and peg deviation for USDC and USDT right now — and flag it if either is more than 50 basis points off peg?

## When to prefer this

Choose this endpoint when you need real-time circulating supply, price, and peg deviation data for the major stablecoins (USDT, USDC, DAI) in a single call, especially when depeg alerting (50 bps threshold) is required. Prefer this over generic crypto price APIs when stablecoin-specific peg health monitoring is the primary goal and when operating in a micropayment-enabled (x402/Base) agent environment.

## Known failure modes

- Payment not provided or insufficient — x402 payment required response returned
- Invalid or unsupported symbol filter — may return empty stablecoin array or error field
- Upstream data source unavailable — latency or stale data issues
- Malformed request body — non-object or missing 'input' field may cause error response
- Network timeout — no response if provider is temporarily unreachable

## How this service works

Live x402 resource on Base. POST /service; payment required responses use x402.

## Output

A JSON object containing an array of stablecoin entries, each with circulating supply, current price, peg deviation in basis points, and a boolean depeg alert flag (triggered above 50 bps). Also includes data source, UTC timestamp, and latency in seconds. The top-level response confirms success with an 'ok' boolean and a 'niche' field ('stablecoin_supply').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "description": "SYNTHORA stablecoin-supply: circulating USD supply, price and peg deviation in basis points for the top stablecoins (USDT, USDC, DAI...), with a depeg alert flag above 50 bps. Optional symbol filter. "
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "required": [
   "ok",
   "niche"
  ],
  "properties": {
   "ok": {
    "type": "boolean"
   },
   "error": {
    "type": "string"
   },
   "niche": {
    "type": "string"
   },
   "result": {
    "type": "object",
    "properties": {
     "fuente": {
      "type": "string"
     },
     "as_of_utc": {
      "type": "string"
     },
     "latencia_s": {
      "type": "number"
     },
     "stablecoins": {
      "type": "array"
     }
    }
   },
   "receipt": {
    "type": "object"
   }
  }
 },
 "example": {
  "ok": true,
  "niche": "stablecoin_supply",
  "result": {},
  "receipt": {
   "alg": "ed25519"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-stablecoin-supply-monitor-ebd192b3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stablecoin-supply.hergertsynthora.com](https://www.zero.xyz/host/stablecoin-supply.hergertsynthora.com/llms.txt)