# Synapse Stock Quotes API

> Synapse Stock Quotes API is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).

Fetches real-time stock quote data (price, open, high, low, volume) for equity symbols, paid per call via x402 USDC on Base

## Facts

- Endpoint: GET https://anibalb.duckdns.org/x402/stock-quotes?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-stock-quotes-api-a2268599
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qDiy8LzN_GdmArlUB_iov

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 synapse-stock-quotes-api-a2268599
```

Example prompt: What's the current stock quote for AAPL — give me the price, today's open, high, low, and volume?

## When to prefer this

Choose this endpoint when you need real-time stock quote data (price, OHLV) without signing up for an account or managing API keys, and you are comfortable paying $0.002 USDC per call on Base via the x402 protocol. It is ideal for AI agents in crypto-native environments that already handle x402 micropayments, and for lightweight use cases that do not require historical data, options chains, or fundamentals.

## Known failure modes

- Missing or invalid ticker symbol returns an error or empty results array
- Payment not completed via x402 results in HTTP 402 response before data is returned
- Rate limits or upstream Twelve Data outages may cause delayed or failed responses
- Requesting a non-existent or delisted symbol may return no results
- Network issues with the duckdns.org dynamic DNS host may cause connectivity failures

## How this service works

Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.

## Output

Returns a JSON array of quote results, each containing the stock symbol, current price, open, high, low, volume, and the underlying data source (Twelve Data). Example: {results:[{symbol:'AAPL',price:'348.32',open:'347.0',high:'350.0',low:'346.0',volume:'1234567',source:'twelvedata'}]}

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "results": [
   {
    "low": "346.0",
    "high": "350.0",
    "open": "347.0",
    "price": "348.32",
    "source": "twelvedata",
    "symbol": "AAPL",
    "volume": "1234567"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synapse-stock-quotes-api-a2268599/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from anibalb.duckdns.org](https://www.zero.xyz/host/anibalb.duckdns.org/llms.txt)