Marketplace · API · x402

legalpulse.theaslangroupllc.com/api/legal/trademark-precheck

Trademark precheck (agent-tier preview of /api/legal/trademark-check $0.50): live USPTO TSDR verification of serial/registration numbers you already have — returns the official LIVE/DEAD status, owner, classes, and dates verbatim. Does not run candidate-discovery research or produce a conflict-risk verdict; those require the full product. For legal, brand-naming, and IP agents with small per-call budgets.

Endpoint	`https://legalpulse.theaslangroupllc.com/api/legal/trademark-precheck`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~539 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc
method	GET
last updated	2026-11-10T21:01:56.781Z

Use it

Call it (an x402 client pays automatically)

curl -i https://legalpulse.theaslangroupllc.com/api/legal/trademark-precheck
# 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-dda0aa9604ff90db

Search the whole marketplace from your agent (MCP)

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