The mock catalog
Hosted mock APIs for the third-party services you build against. Each one is generated from the provider's published OpenAPI spec and served by the mockzilla engine. Free to curl, no signup required.
Personio Personnel Data
Mock the Personio personnel data API to build HR integrations, attendance dashboards, and document workflows without a live Personio tenant.
Swagger Petstore
Emulate the Swagger Petstore in seconds. A sample API that uses a petstore as an example to demonstrate features in the OpenAPI 3.0 specification
Podium Workflows
Mock the Podium Workflows API to test customer-messaging, review-collection, and CRM-integration flows without a paid Podium account.
PostHog API
Mock the PostHog product analytics API to test event capture, feature-flag clients, cohort queries, and dashboard exports without a PostHog instance.
Prolific Researcher API
Mock the Prolific Researcher API with 78 endpoints without keys, sandboxes, or a live account.
PTV Timetable API
Emulate the PTV Timetable API in seconds. The PTV Timetable API provides direct access to Public Transport Victoria’s public transport timetable data.
RAWG Video Games Database
Mock the RAWG video games database API to look up games, genres, platforms, developers, publishers, stores, creators, and screenshots without using a real RAWG key.
Resend
Mock the Resend transactional email API to develop send, batch, domain, API-key, audience, and contact flows without firing real messages or burning a sandbox quota.
Retell AI API
Mock the Retell AI voice agent API: simulate call registration, agent and LLM management, and phone-number provisioning without a real Retell account.
Rev AI Transcription API
Simulate the Rev AI Transcription API in seconds. Rev.ai provides quality speech-text recognition via a RESTful API.
Ron Swanson Quotes API
Mock the Ron Swanson Quotes API in seconds. A HTTP API for retrieving Ron Swanson quotes
Rudder Example API
Mock the Rudder Example API with 150 endpoints without keys, sandboxes, or a live account.