# SiteCheck Crypto & Finance – Finviz Stock Fundamentals

> SiteCheck Crypto & Finance – Finviz Stock Fundamentals is a paid API for AI agents from api.chainmarket-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).

Fetches key financial fundamentals and metadata for a stock ticker from Finviz, including market cap, revenue, income, employees, and index membership.

## Facts

- Endpoint: GET https://api.chainmarket-api.workers.dev/api/finance/finviz?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-crypto-finance-finviz-stock-fundamentals-faa6147e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WjChWX7M6apv0uFdq9IKQ

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 sitecheck-crypto-finance-finviz-stock-fundamentals-faa6147e
```

Example prompt: Pull the Finviz fundamentals for AAPL — I want to see market cap, revenue, net income, employee count, and which index it belongs to.

## When to prefer this

Choose this endpoint when you need quick, no-signup access to Finviz-sourced stock fundamentals (market cap, revenue, income, index membership, employees) for a single equity ticker without maintaining an API key. It is well-suited for AI agents that need lightweight per-call financial enrichment billed via crypto micropayment (x402/USDC). Prefer alternatives like a Bloomberg or financial data API if you need historical time series, real-time price quotes, or institutional-grade data reliability.

## Known failure modes

- Invalid or unknown ticker symbol returns an error or empty fields
- Finviz rate limiting or page structure changes may cause parsing failures
- Delisted or OTC-only tickers may not be available on Finviz
- Network timeout from the upstream Finviz page fetch
- Missing fields if Finviz does not publish certain data for small-cap or foreign stocks

## How this service works

Finviz quote snapshot for one stock ticker: the key statistics table as label and value pairs (market cap, P/E, price, change, volume and similar), read from the public quote page. Values are as Finviz shows them, possibly delayed.

## Output

Returns a JSON object with the stock symbol, a source URL pointing to the Finviz quote page, a checkedAt timestamp, and a fields object containing financial data such as Market Cap, Enterprise Value, Sales, Income, Book/sh, Cash/sh, Employees, IPO date, and Index membership.

## 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",
     "required": [
      "symbol"
     ],
     "properties": {
      "symbol": {
       "type": "string",
       "description": "Stock ticker, e.g. AAPL, MSFT"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "fields": {
   "IPO": "Dec 12, 1980",
   "Index": "DJIA, NDX, S&P 500",
   "Sales": "466.82B",
   "Income": "128.93B",
   "Book/sh": "7.36",
   "Cash/sh": "4.28",
   "Employees": "166000",
   "Market Cap": "5056.43B",
   "Enterprise Value": "5078.37B"
  },
  "source": "https://finviz.com/quote.ashx?t=AAPL",
  "symbol": "AAPL",
  "checkedAt": "2026-10-23T09:36:12.783Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-crypto-finance-finviz-stock-fundamentals-faa6147e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.chainmarket-api.workers.dev](https://www.zero.xyz/host/api.chainmarket-api.workers.dev/llms.txt)