# Stable Prints

> Stable Prints is a paid API for AI agents from earn-pulse.haiqingm58.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Returns current USD price prints for USDT, USDC, and DAI stablecoins

## Facts

- Endpoint: GET https://earn-pulse.haiqingm58.workers.dev/stables
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stable-prints-58d6b052
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K8bnuIGkIv1W9fWJyzO2m

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 stable-prints-58d6b052
```

Example prompt: Can you check if USDT, USDC, and DAI are all still trading at their $1 peg right now?

## When to prefer this

Use this endpoint when you need a quick, no-configuration snapshot of stablecoin peg status for USDT, USDC, and DAI simultaneously. Ideal for depeg monitoring, DeFi risk checks, or any workflow that needs to verify stablecoin health before executing on-chain actions. Pairs naturally with the sibling Earn Pulse or Base USDC Yields endpoints for a broader DeFi market view.

## Known failure modes

- Upstream price feed unavailable — may return stale or error response
- Worker timeout if underlying data source is slow
- No parameters to validate, but network errors may return non-JSON responses

## How this service works

USDT, USDC and DAI USD prints. No parameters.

## Output

Returns current USD price data (prints) for the three major stablecoins: USDT (Tether), USDC (USD Coin), and DAI. Allows callers to verify peg status and detect any deviation from $1.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "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/stable-prints-58d6b052/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from earn-pulse.haiqingm58.workers.dev](https://www.zero.xyz/host/earn-pulse.haiqingm58.workers.dev/llms.txt)