Hyperbrowser Extensions API

Upload and list custom Chrome extensions that can be attached to browser sessions for advanced automation, custom UI, or workflow tooling.

Operations 2

POST /api/extensions/add Add a New Extension #
GET /api/extensions/list List All Extensions #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/extensions-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

hyperbrowser-extensions-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Hyperbrowser Agents Extensions API
  version: 1.0.0
  description: Start, stop, and monitor agentic browser tasks across HyperAgent, Browser-Use, Claude Computer Use, Gemini Computer Use, and OpenAI CUA.
  contact:
    name: Hyperbrowser
    url: https://hyperbrowser.ai
  license:
    name: Hyperbrowser Terms
    url: https://hyperbrowser.ai/terms
servers:
- url: https://api.hyperbrowser.ai
  description: Production server
security:
- ApiKeyAuth: []
tags:
- name: Extensions
paths:
  /api/extensions/add:
    post:
      operationId: post-api-extensions-add
      summary: Add a New Extension
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/CreateExtensionParams'
      responses:
        '200':
          description: Extension added successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ExtensionResponse'
      security:
      - ApiKeyAuth: []
      tags:
      - Extensions
  /api/extensions/list:
    get:
      operationId: get-api-extensions-list
      summary: List All Extensions
      responses:
        '200':
          description: Extension added successfully
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/ExtensionResponse'
      security:
      - ApiKeyAuth: []
      tags:
      - Extensions
components:
  schemas:
    CreateExtensionParams:
      type: object
      properties:
        file:
          type: string
          format: binary
        name:
          type: string
      required:
      - file
    ExtensionResponse:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        createdAt:
          type: string
          format: iso8601
        updatedAt:
          type: string
          format: iso8601
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: Account API key from app.hyperbrowser.ai