Marketplace · API · x402

agent.massive.com/stocks/filings/vX/form-3

SEC Form 3 filings reporting initial statements of beneficial ownership of securities. Filed by corporate insiders (directors, officers, and 10%+ shareholders) when they first acquire a position. Can't find what you're looking for? POST feedback to /feedback, no charge.

Endpointhttps://agent.massive.com/stocks/filings/vX/form-3
Trust✓ Verified callable · 100% uptime over 1 checks · ~212 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x525f6dDcE9aF7a7179D7696aaBfCd5FCd15a21e6
methodGET
last updated2026-11-07T05:19:25.03Z

Use it

Call it (an x402 client pays automatically)

curl -i https://agent.massive.com/stocks/filings/vX/form-3
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-97df171ed4d8553b

Search the whole marketplace from your agent (MCP)

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