Search worldwide patent publications via the European Patent Office's Open Patent Services
Search worldwide patent publications via the European Patent Office's Open Patent Services (OPS). Pass a CQL query (e.g. ti=quantum computing, in=tesla, pa=siemens, cpc=H01M, pn=EP1000000) and get matching publications with country, document number, kind code, and a combined publication number, plus the total result count. Covers EP + 100+ patent authorities worldwide — net-new vs our US-only patents.search.
4500 (raw units)
price
5
calls / 30d
1
unique payers
2026-09-17
updated
Provider
2s.io · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "4500",
"maxTimeoutSeconds": 60
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "4500",
"maxTimeoutSeconds": 60
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"limit": 1,
"q": "xx"
},
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"method": {
"const": "GET"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"limit": {
"maximum": 100,
"minimum": 1,
"type": "integer"
},
"q": {
"description": "CQL query, e.g. \"ti=quantum computing\" or \"pa=siemens and cpc=H01M\".",
"maxLength": 400,
"minLength": 2,
"type": "string"
}
},
"required": [
"q"
],
"type": "object"
},
"type": {
"const": "http"
}
},
"required": [
"type",
"method",
"queryParams"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://2s.io/api/patents/epo-search" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://2s.io/api/patents/epo-search");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://2s.io/api/patents/epo-search")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/6643.json, and this resource appears in /discovery/resources and /discovery/search.