Inngest and Mockoon solve different problems in the backend development lifecycle: Inngest is a durable execution platform for running reliable background…
Best for Inngest: Developers building reliable background jobs, event-driven workflows, or AI agent pipelines who want step-level tracing and replay, starting free with 50k executions/month on the Hobby plan and scaling to the $99/month Pro plan.
Best for Mockoon: Frontend and API developers who need to design, run, and iterate on mock REST APIs locally without any backend or cloud account, using the free open-source desktop app, CLI, or Docker image.
At a Glance
Inngest
Mockoon
Primary category
Developer Tools
Developer Tools
Rating
Not documented
Not documented
Pricing model
Freemium / Usage-Based
Freemium
Starting price
Free (Hobby); Pro from $99/month
Free (desktop app and CLI); Cloud Solo plan from $15/month
Free plan
Yes
Yes
Free trial
Not documented
Yes
Platforms
Web
Web, Mac, Windows
Team collaboration
Not documented
Not documented
AI features
Not documented
Not documented
Public API
Yes
Yes
Key Differences
Core Function
Inngest: Inngest is a durable execution platform for running reliable background jobs, event-driven workflows, and AI agents embedded in application code.
Mockoon: Mockoon is a desktop tool for designing and running mock REST APIs locally for frontend and API development and testing.
These solve fundamentally different problems, so the right choice depends entirely on whether the need is backend job execution or API mocking.
Integration Model
Inngest: Inngest embeds via SDK into existing app code (Next.js, Node.js, Python) and runs as a managed execution layer.
Mockoon: Mockoon runs as a standalone desktop app for Windows, macOS, and Linux with no required account, plus CLI and Docker support for headless use.
SDK-embedded tools require code integration, while standalone apps can be adopted without touching the production codebase.
Pricing Structure
Inngest: Inngest's paid Pro plan ($99/month) scales with usage: executions, concurrency, and data ingested.
Mockoon: Mockoon's paid Team plan ($100/month billed annually) is a flat price for cloud deployment and team collaboration rather than usage-based.
Usage-based pricing can grow with scale, while flat team pricing is more predictable regardless of usage volume.
Free Tier Depth
Inngest: Inngest's free Hobby plan includes 50k executions and 500k events ingested per month with no credit card required.
Mockoon: Mockoon's entire core product, desktop app, CLI, and Docker, is free and open source with no account required, with only cloud collaboration behind a paywall.
The scope of what's free differs: Inngest's free tier has usage caps, while Mockoon's core functionality has no caps at all.
Compliance and Enterprise Readiness
Inngest: Inngest is SOC 2 Type II compliant with a HIPAA BAA available for regulated industries.
Mockoon: Mockoon's compliance posture isn't documented beyond its privacy-friendly, offline-first design; its Enterprise tier offers a 99.9% availability SLA and custom payment options.
Regulated industries (healthcare, finance) often require documented compliance certifications before adopting a tool for production workflows.
Feature-by-Feature
Core Capability
Feature
Inngest
Mockoon
Durable workflow/job execution
Available
Unavailable
AI agent observability (tracing/replay)
Available
Unavailable
Mock REST API design & running
Unavailable
Available
Request recording (capture live API traffic)
Not documented
Available
OpenAPI import/export
Not documented
Available
Collaboration & Deployment
Feature
Inngest
Mockoon
SDK-based code integration
Available
Not documented
CLI/Docker support
Not documented
Available
Cloud team collaboration
Not documented
Available
No account required to start
Available
Available
Pricing & Compliance
Feature
Inngest
Mockoon
Free tier
Available
Available
Paid starting price
Available
Available
SOC 2 Type II compliance
Available
Not documented
HIPAA BAA available
Available
Not documented
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
Inngest
Hobby — $0 Monthly
Pro — $99/month Monthly
Enterprise — Custom pricing Annual (custom)
Mockoon
Free (Desktop/CLI) — $0 N/A
Solo (Cloud) — $15/month Monthly
Team (Cloud) — $100/month billed annually Annual
Enterprise (Cloud) — Custom Custom
Pros & Cons
Inngest
Pros
No separate workflow server needed; integrates directly into existing app code
Automatic retries and checkpointing simplify building reliable multi-step processes
Runs natively on serverless platforms like Vercel and AWS Lambda
Generous free Hobby tier for individual developers to fully evaluate the platform
Backed by well-known investors including Andreessen Horowitz and Guillermo Rauch
Cons
Usage-based overage pricing can become costly at high execution volumes
SAML SSO and RBAC are Enterprise-only, gated behind custom pricing
Smaller ecosystem and community than established alternatives like Temporal
Trace retention is limited to 24 hours on the free Hobby plan
Relies on external infrastructure providers for actual compute execution
Mockoon
Pros
Free, open-source core with no account or sign-up required to start mocking locally
Fast setup; mock APIs can be running within seconds via a desktop GUI
CLI and Docker support make it easy to integrate into CI/CD pipelines
Cross-platform support for Windows, macOS, and Linux via Electron
Optional Cloud tier adds team collaboration and shared deployments without forcing all users onto a paid plan
Cons
Cloud plans are required for team collaboration and shared or public mock deployment, adding cost for teams
Electron-based desktop app has a larger footprint than lightweight CLI-only tools like JSON Server
Enterprise-grade governance features require the custom-priced Enterprise plan
Smaller ecosystem and marketplace than Postman, which bundles mocking with a much larger API platform
Name similarity to the unrelated MockServer project can cause confusion when searching for support or resources
Use Cases
Choose Inngest: Developers building reliable background jobs, event-driven workflows, or AI agent pipelines who want step-level tracing and replay, starting free with 50k executions/month on the Hobby plan and scaling to the $99/month Pro plan.
Choose Mockoon: Frontend and API developers who need to design, run, and iterate on mock REST APIs locally without any backend or cloud account, using the free open-source desktop app, CLI, or Docker image.
Need both: A team building a new product could use Mockoon to mock out REST API endpoints while the frontend is developed in parallel, then use Inngest to power the actual backend's durable background jobs and AI agent workflows once the real API is built, making the two tools complementary at sequential stages of the same project rather than competitors.
Inngest
AI agent orchestration — Developers use Inngest's durable step functions to reliably run multi-step AI agent pipelines that can recover from failures.
Background job processing — Teams offload long-running or asynchronous tasks like email sending and data processing to Inngest instead of managing their own queues.
Scheduled and event-driven workflows — Companies trigger multi-step workflows from application events or cron schedules, such as onboarding sequences or nightly data syncs.
Mockoon
Frontend Development Without a Backend — Frontend developers mock backend APIs that don't exist yet so they can build and test UI independently.
QA and Automated Testing — QA engineers simulate third-party API responses and edge cases in automated test suites using local or CI-run mocks.
Contract-First API Design — Teams design APIs contract-first and use Mockoon Cloud to share deployed mock endpoints across the team before the real backend is built.
Frequently Asked Questions
What is Inngest actually used for?
Inngest is a durable execution platform for building reliable workflows, AI agents, and background jobs directly in application code, with step-level retries and observability.
What is Mockoon used for?
Mockoon is a free, open-source desktop app for designing and running mock REST APIs locally, useful for frontend development and API testing before a real backend exists.
Are both tools free to start?
Yes. Inngest's Hobby plan offers 50k executions and 500k events per month with no credit card required, and Mockoon's entire desktop app, CLI, and Docker image are free and open source with no account needed.
How does paid pricing compare?
Inngest's Pro plan starts at $99/month and scales with usage (executions, concurrency, data ingested). Mockoon's Team plan is a flat $100/month billed annually for cloud collaboration.
Is Inngest compliant with healthcare regulations?
Yes, Inngest is SOC 2 Type II compliant with a HIPAA BAA available. This isn't documented for Mockoon.
Can Mockoon record real API traffic to build mocks?
Yes, Mockoon's Requests Recording feature captures real HTTP requests from a live API and replays them to quickly build mocks.