Alpaca

Realtime and historical market data on all US equities and ETFs

Endpoint	`https://alpaca.markets`
Trust	100% uptime over 1 checks · ~61 ms
Pricing	See the provider
docs url	https://alpaca.markets/docs/api-documentation/api-v2/market-data/alpaca-data-api-v2/
auth	none
source	public_apis

Use it

Endpoint

https://alpaca.markets

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/667

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}