Opsis API / v1

Introduction

Build with the Opsis search API.

The search engine, in your application

Search emails, usernames, and domains through one HTTP API. Receive structured results from the same engine that powers Opsis, without building individual source integrations.

Make your first requestFrom API key to search results.Explore the APIRequest fields, response modes, and examples.Build a live results viewStream findings as modules finish.Manage keys & creditsConnect an application and fund its searches.

At a glance

Field	Description
Base URL	https://api.useopsis.com
Authentication	Server-side API key in the Authorization: Bearer header.
Search types	email, username, domain
Response modes	JSON with polling, short synchronous wait, or Server-Sent Events.
Access	An eligible Pro or Unlimited plan. Pro integrations use prepaid API credits, with optional subscription-credit fallback.

New integration? Start with the quickstart. For generated clients, use the OpenAPI schema.