# Stablecoin Supply and Flows API

> Stablecoin Supply and Flows API is a paid API for AI agents from cycle-angela-lamp-hamburg.trycloudflare.com, paid per call via x402, $0.02/call, status down (last checked 2026-09-16).

Returns circulating supply, chain breakdown, and peg mechanism for major stablecoins to signal mint/burn liquidity conditions

## Facts

- Endpoint: GET https://cycle-angela-lamp-hamburg.trycloudflare.com/api/defi/stablecoin-flows
- Price: $0.02/call
- Payment: x402
- Status: down
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablecoin-supply-and-flows-api-89c09a28
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_F-9ib-HVcHnEhyYfvSUPk

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-supply-and-flows-api-89c09a28
```

Example prompt: Pull the latest stablecoin circulating supply data for me — I want to see which stablecoins are out there, their peg mechanisms, and how much of each is currently in circulation so I can assess liquidity conditions.

## When to prefer this

Use this endpoint when you need a broad overview of stablecoin circulating supply and peg mechanisms across the market, particularly for DeFi liquidity analysis, mint/burn signal monitoring, or comparing algorithmic vs. collateralized stablecoin supplies. Prefer this over on-chain RPC calls when you need a pre-aggregated, multi-stablecoin snapshot in a single request.

## Known failure modes

- Upstream data source unavailable — returns 5xx error
- Payment not processed correctly via x402 — returns 402 Payment Required
- Stale data if generated_at timestamp is significantly behind current time
- Empty stablecoins array if data pipeline fails silently

## How this service works

Stablecoin supply and flows: circulating supply per stablecoin, chain breakdown, peg mechanism. JSON. Stablecoin mint burn liquidity signal.

## Output

A JSON object containing an array of stablecoins, each with name, symbol, peg mechanism type, and circulating supply in USD, plus a generated_at Unix timestamp indicating when the data was built.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "stablecoins": {
   "type": "array",
   "items": {
    "type": "object",
    "properties": {
     "name": {
      "type": "string"
     },
     "symbol": {
      "type": "string"
     },
     "mechanism": {
      "type": "string"
     },
     "circulating": {
      "type": "number",
      "description": "circulating pegged USD"
     }
    }
   }
  },
  "generated_at": {
   "type": "integer",
   "description": "unix seconds when payload was built"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablecoin-supply-and-flows-api-89c09a28/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cycle-angela-lamp-hamburg.trycloudflare.com](https://www.zero.xyz/host/cycle-angela-lamp-hamburg.trycloudflare.com/llms.txt)