Alternatives to Inngest

Inngest: Durable execution for workflows and AI agents. 8 products similar to Inngest, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 7 of 8 have an API, 6 of 8 offer an MCP server, 2 of 8 are open source.

Composio
Integration and tool-execution platform giving AI agents secure access to 1,500+ apps
AI agents & frameworks free tierAPIMCPSDK
Insomnia
Collaborative API development platform for designing, debugging, and testing APIs
Developer productivity free tierMCPopen source
App AI Gateway
Keep AI provider keys out of your iOS app. Verify each request with App Attest and set limits and budgets per user.
APIs & backend free tierAPIMCPSDKopen source
Deployment.io
Software built and deployed to your specification
DevOps & CI/CD free tierAPIMCP
finlight
Real-time financial news API with sentiment analysis, WebSocket streaming, and an advanced query builder
APIs & backend free tierAPIMCPSDK
Hex
The Analytics platform for humans and agents
Analytics & data free tierAPIMCP
APITemplate.io
Automate PDF documents and images at scale
APIs & backend free tierAPISDK
flaky
A mock REST API that fails on purpose
Testing & QA free tierAPI

Side by side

Product	Pricing	Free tier	API	MCP server	SDK	Open source
Inngest	Freemium · from $0	yes	yes	yes	yes	yes
Composio	Freemium · from $0	yes	yes	yes	yes	no
Insomnia	Freemium	yes	no	yes	no	yes
App AI Gateway	Freemium	yes	yes	yes	yes	yes
Deployment.io	Freemium	yes	yes	yes	no	no
finlight	Freemium	yes	yes	yes	yes	no
Hex	Freemium · from $36 per Editor / month	yes	yes	yes	no	no
APITemplate.io	Freemium · from $19	yes	yes	no	yes	no
flaky	Free	yes	yes	no	no	—

Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.

API

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