Alpha Vantage Monthly Time Series via Locus x402

x402

Alpha Vantage Monthly Time Series 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 2026-09-13).

Returns monthly OHLCV (open, high, low, close, volume) stock price history for a given ticker symbol, paid per-call via USDC micropayment.

Price / call$0.008

Seller volume →—

Success—

StatusUnknown

How this service works

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

Output

A JSON object containing a monthly time series keyed by date, with open, high, low, adjusted close, and volume fields for each month, plus payment settlement metadata (settled USDC, authorized USDC) and a request ID for tracking.

Example use cases

Long-term equity trend analysis

“Get me the full monthly price history for Tesla (TSLA) so I can chart how the stock has moved over the past several years.”

Backtesting a trading strategy

“I need monthly OHLCV data for Microsoft (MSFT) to backtest a moving-average crossover strategy — can you fetch all available monthly data?”

Portfolio performance review

“Pull the monthly closing prices for Amazon (AMZN) going back to 2018 so I can compare it against my portfolio's returns over that period.”

Technical details

Endpoint

POSThttps://alphavantage.x402.paywithlocus.com/alphavantage/time-series-monthly

When to prefer

Choose this endpoint when you need long-term monthly granularity stock price history (OHLCV) for a single equity ticker, especially in agentic or automated workflows where pay-per-call USDC micropayments are acceptable and no long-term subscription is desired. Prefer this over daily or intraday endpoints when the use case involves trend analysis, backtesting over years, or charting multi-year performance.

Side effects

Invalid or unrecognized ticker symbol returns an empty or error data object
Missing symbol parameter results in a request failure
Payment not authorized or insufficient USDC balance causes a 402 Payment Required response
Rate limits or upstream Alpha Vantage API downtime may produce timeout or error responses
Requesting a delisted or OTC ticker may return incomplete or no data

Input

Schema · Request body

Field	Type	Description
symbol	string
datatype	string

Output

Schema · Response

{
  "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
  }
}

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How this service works

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

Output

Example use cases

Long-term equity trend analysis

“Get me the full monthly price history for Tesla (TSLA) so I can chart how the stock has moved over the past several years.”

Backtesting a trading strategy

“I need monthly OHLCV data for Microsoft (MSFT) to backtest a moving-average crossover strategy — can you fetch all available monthly data?”

Portfolio performance review

“Pull the monthly closing prices for Amazon (AMZN) going back to 2018 so I can compare it against my portfolio's returns over that period.”

Technical details

Endpoint

POSThttps://alphavantage.x402.paywithlocus.com/alphavantage/time-series-monthly

When to prefer

Side effects

Invalid or unrecognized ticker symbol returns an empty or error data object
Missing symbol parameter results in a request failure
Payment not authorized or insufficient USDC balance causes a 402 Payment Required response
Rate limits or upstream Alpha Vantage API downtime may produce timeout or error responses
Requesting a delisted or OTC ticker may return incomplete or no data

Input

Schema · Request body

Field	Type	Description
symbol	string
datatype	string

Output

Schema · Response

{
  "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
  }
}