ToolVet
75trust / 100

Assignees Search

by api.govparse.io in Search & web

x402 APIPassing, checked 57 min ago

Which companies are new to patenting, and in what technology? Search patent assignee ORGANIZATIONS (entity-resolved), each with first/last grant date, patent count, distinct CPC subclasses, and inventor count. new_assignee=true isolates orgs with their first-ever US patent grant (emerging/stealth signal for VC deal sourcing and corp-dev); narrow by CPC subclass, state/country, first-grant window, or patent_count_min. PatentsView grants (CC BY 4.0), observational.

GET
https://api.govparse.io/v1/patents/assignees/search
Price
$1.25
per call in USDC
Uptime
100%
last 30 days
Response time
302 ms
432 ms slowest 5%
Last check
Passed
57 min ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed

How to call it

GET https://api.govparse.io/v1/patents/assignees/search

Each call costs $1.25 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://api.govparse.io/v1/patents/assignees/search?assignee=labs&assignee_entity=3f6a1c9e-2b4d-4a8e-9c1f-7e2d5a6b8c90&state=CA

Example response

The provider's example. We can't check it without paying.

{
  "rows": [
    {
      "assignee_key": "org:example ai",
      "country": "US",
      "cpc_subclasses": "G06F,G06N",
      "distinct_cpc_subclass_count": 2,
      "entity_id": "3f6a1c9e-2b4d-4a8e-9c1f-7e2d5a6b8c90",
      "first_grant_date": "2024-02-13",
      "inventor_count": 6,
      "is_new_assignee": true,
      "last_grant_date": "2024-09-17",
      "organization": "EXAMPLE AI INC",
      "patent_count": 3,
      "prior_patent_count": 2,
      "recent_patent_count": 6,
      "state": "CA"
    }
  ],
  "total_matched": 1
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $1.25.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.govparse.io/v1/patents/assignees/search?assignee=labs&assignee_entity=3f6a1c9e-2b4d-4a8e-9c1f-7e2d5a6b8c90&state=CA'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://api.govparse.io/v1/patents/assignees/search?assignee=labs&assignee_entity=3f6a1c9e-2b4d-4a8e-9c1f-7e2d5a6b8c90&state=CA' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $1.25 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$1.25" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $1.25 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.govparse.io%2Fv1%2Fpatents%2Fassignees%2Fsearch
const res = await pay("https://api.govparse.io/v1/patents/assignees/search?assignee=labs&assignee_entity=3f6a1c9e-2b4d-4a8e-9c1f-7e2d5a6b8c90&state=CA");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $1.25 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$1.25"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.govparse.io/v1/patents/assignees/search?assignee=labs&assignee_entity=3f6a1c9e-2b4d-4a8e-9c1f-7e2d5a6b8c90&state=CA")
    print(res.status_code, res.text)

Security scan

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Recent checks

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57 min agoPassed402336 ms$1.25
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2 days agoPassed402181 ms$1.25