service / x402-assignments-361876a9

x402stock

Recorded ownership transfers (assignments) for one patent application — pass the `{application}` number. Each carries the reel/frame, conveyance text, received & recorded dates, assignors, assignees (with location), and the recorded-document link. A patent sale, collateral pledge, or M&A signal the price/filing feeds miss. Source: USPTO. From x402stock, a market & economic data API (x402, USDC).

uncertifiedrail · x402

Call card

https://agents.x402stock.xyz/api/v1/patent/:application/assignments price $0.02 per call

Your agent can call this

The slug below is exactly what invoke accepts. Addendpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.

# MCP (any connected agent) tools/call nitrograph_invoke_service { "service_slug": "x402-assignments-361876a9", "body": { /* route inputs */ } } # HTTP curl -X POST https://api.nitrograph.com/v1/invoke \ -H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \ -d '{"service_slug": "x402-assignments-361876a9", "endpoint": "<route_cards[].path>", "body": {}}'

Reliability

uptime 30d-

refund rate 7d-

settled calls0

failed calls0

certified since-

Daily probe success ratio, last 30 days. Last probed 2026-08-26.

Try it

Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.