# Alpha Vantage Symbol Search via Locus x402

> Alpha Vantage Symbol Search via Locus x402 is a paid API for AI agents from alphavantage.x402.paywithlocus.com, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).

Search for stock ticker symbols and company names by keyword using Alpha Vantage's symbol search API, paid per-call via x402 micropayment.

## Facts

- Endpoint: POST https://alphavantage.x402.paywithlocus.com/alphavantage/symbol-search
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/alpha-vantage-symbol-search-via-locus-x402-0b1b0467
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_h8q9fDZCINeeedy2AIhRP

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 alpha-vantage-symbol-search-via-locus-x402-0b1b0467 -d '<json body>'
```

Example prompt: Can you find the stock ticker symbol for 'Palantir Technologies' — search Alpha Vantage for it and return the symbol, exchange, and region?

## When to prefer this

Use this endpoint when you need to resolve a human-readable company name or partial ticker string into a valid, exchange-qualified stock symbol before querying price data or placing trades. Prefer this over hardcoding tickers when the exact symbol is uncertain, when supporting user-typed company names, or when building a search-as-you-type stock lookup. The x402 micropayment model means no API key management is needed — pay per use in USDC.

## Known failure modes

- Empty results if keywords don't match any known symbol or company
- Payment failure if USDC balance is insufficient for the $0.008 per-call fee
- Ambiguous results when keywords match many companies (no single best match)
- Rate limiting or service unavailability from underlying Alpha Vantage API
- Invalid datatype parameter value causing request rejection

## How this service works

Financial market data — stock prices, forex, crypto, commodities, economic indicators, technical analysis, and news sentiment.

## Output

Returns a JSON object containing a list of best-matching symbols with fields such as symbol, name, type (equity, ETF, etc.), region, market open/close times, timezone, currency, and a match score indicating relevance. Also includes payment metadata (settled USDC amount) and a request ID for tracking.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "datatype": {
   "type": "string"
  },
  "keywords": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "payment": {
   "scheme": "exact",
   "settledUsdc": "0.001000",
   "authorizedMaxUsdc": "0.001000"
  },
  "request": {
   "id": "00000000-0000-4000-8000-000000000000",
   "statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
  },
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/alpha-vantage-symbol-search-via-locus-x402-0b1b0467/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from alphavantage.x402.paywithlocus.com](https://www.zero.xyz/host/alphavantage.x402.paywithlocus.com/llms.txt)