# Earn Pulse Market Data Feed

> Earn Pulse Market Data Feed 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 2026-09-15).

Returns a real-time market pulse snapshot including BTC and ETH prices, USDC data, Crypto Fear & Greed Index, and Base chain TVL

## Facts

- Endpoint: GET https://earn-pulse.haiqingm58.workers.dev/pulse
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/earn-pulse-market-data-feed-1ab9856c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bJDs5oz8-iEFCEGfLSsC4

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 earn-pulse-market-data-feed-1ab9856c
```

Example prompt: Give me the current crypto market pulse — BTC price, ETH price, the Fear & Greed Index, and Base chain TVL all in one shot.

## When to prefer this

Choose this endpoint when you need a consolidated, single-call crypto market snapshot combining price data, sentiment, and Base chain DeFi metrics. Ideal for agents that need broad market context without chaining multiple separate API calls for BTC price, ETH price, sentiment index, and TVL independently. Best for lightweight, real-time checks rather than deep historical analysis.

## Known failure modes

- Upstream data provider outage may result in stale or missing data fields
- Network timeout if Cloudflare worker experiences cold start latency
- Payment validation failure if x402 payment header is missing or incorrect amount
- Partial data if one data source (e.g. Fear & Greed API) is temporarily unavailable

## How this service works

Market pulse: BTC, ETH, USDC, Fear & Greed, Base TVL

## Output

A JSON snapshot containing current BTC price, ETH price, USDC-related data, the Crypto Fear & Greed Index value/label, and the total value locked (TVL) on the Base blockchain — all in a single response.

## 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/earn-pulse-market-data-feed-1ab9856c/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)