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OpenAPI Specification
openapi: 3.2.0
info:
title: Serper Google Search Autocomplete Patents API
description: RESTful API providing real-time Google Search Engine Results Page (SERP) data in structured JSON format. Supports web search, image search, news, maps, places, videos, shopping, scholar, patents, and autocomplete via POST endpoints. Authentication uses an X-API-KEY header. Designed for high-throughput AI and LLM applications with up to 300 queries per second.
version: 1.0.0
contact:
name: Serper Support
url: https://serper.dev
termsOfService: https://serper.dev/terms-of-service
license:
name: Commercial
url: https://serper.dev
servers:
- url: https://google.serper.dev
description: Serper API server
security:
- apiKeyHeader: []
tags:
- name: Patents
description: Patent search results
paths:
/patents:
post:
operationId: patentsSearch
summary: Patents Search
description: Perform a Google Patents search returning patent records with titles, snippets, priority dates, filing dates, grant dates, inventors, assignees, publication numbers, and figure images.
tags:
- Patents
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/SearchRequest'
example:
q: machine learning neural network
gl: us
hl: en
responses:
'200':
description: Successful patents search response
content:
application/json:
schema:
$ref: '#/components/schemas/PatentsSearchResponse'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'429':
$ref: '#/components/responses/TooManyRequests'
components:
responses:
TooManyRequests:
description: Too many requests — rate limit exceeded or credits exhausted.
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
BadRequest:
description: Bad request — missing or invalid parameters.
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
Unauthorized:
description: Unauthorized — invalid or missing API key.
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
schemas:
PatentResult:
type: object
properties:
title:
type: string
description: Patent title.
snippet:
type: string
description: Abstract or description excerpt.
link:
type: string
format: uri
description: URL to the patent on Google Patents.
priorityDate:
type: string
format: date
description: Priority date of the patent (YYYY-MM-DD).
filingDate:
type: string
format: date
description: Filing date of the patent (YYYY-MM-DD).
grantDate:
type: string
format: date
description: Grant date of the patent (YYYY-MM-DD).
publicationDate:
type: string
format: date
description: Publication date of the patent (YYYY-MM-DD).
inventor:
type: string
description: Inventor name(s).
assignee:
type: string
description: Patent assignee (usually a company).
publicationNumber:
type: string
description: Patent publication number (e.g., "US10678858B2").
language:
type: string
description: Language of the patent document.
thumbnailUrl:
type: string
format: uri
description: Thumbnail URL of the patent diagram.
pdfUrl:
type: string
format: uri
description: URL to the patent PDF.
figures:
type: array
items:
$ref: '#/components/schemas/PatentFigure'
description: Patent figures and diagrams.
position:
type: integer
description: Position in patent results.
PatentFigure:
type: object
properties:
imageUrl:
type: string
format: uri
description: URL to the full-size patent figure image.
thumbnailUrl:
type: string
format: uri
description: URL to the thumbnail patent figure image.
SearchRequest:
type: object
required:
- q
properties:
q:
type: string
description: The search query string.
example: google search
gl:
type: string
description: Country code for geolocation of results (ISO 3166-1 alpha-2).
example: us
default: us
hl:
type: string
description: Language code for results (ISO 639-1).
example: en
default: en
num:
type: integer
description: Number of results to return (1-100).
minimum: 1
maximum: 100
default: 10
example: 10
page:
type: integer
description: Page number for pagination.
minimum: 1
default: 1
example: 1
tbs:
type: string
description: Time-based search filter. Use values like 'qdr:h' (past hour), 'qdr:d' (past day), 'qdr:w' (past week), 'qdr:m' (past month), 'qdr:y' (past year).
example: qdr:d
autocorrect:
type: boolean
description: Whether to enable autocorrect for the query.
default: true
PatentsSearchResponse:
type: object
properties:
searchParameters:
$ref: '#/components/schemas/SearchParameters'
organic:
type: array
description: Patent search results.
items:
$ref: '#/components/schemas/PatentResult'
ErrorResponse:
type: object
properties:
message:
type: string
description: Human-readable error description.
SearchParameters:
type: object
properties:
q:
type: string
description: The search query.
gl:
type: string
description: Country code.
hl:
type: string
description: Language code.
type:
type: string
description: The type of search performed.
num:
type: integer
description: Number of results requested.
page:
type: integer
description: Page number.
securitySchemes:
apiKeyHeader:
type: apiKey
in: header
name: X-API-KEY
description: API key obtained from https://serper.dev/api-key