Inngest

Free plan Open source APILinuxMacSelf-hostedWebWindows

What Inngest is

Inngest orchestrates asynchronous code as durable functions for event-driven workflows, background jobs, and agents. Its execution steps handle retries, state, and recovery from failures, while traces follow jobs, agents, and events from trigger to completion. Flow controls manage concurrency and fairness when multiple users compete for resources. Developers can use official open-source SDKs for TypeScript, Python, and Go, or the REST API; functions can run wherever an app is hosted. Inngest also describes isolated sandboxes for testing changes and tools to score and compare variants on production traffic. Integrations include deployment syncs for Vercel and Netlify, Neon database events, and Datadog and Prometheus monitoring. The Free plan is listed as free and includes 5 seats, 50k executions, 500k events ingested, and 24-hour trace history. Pro starts at $99 a month. When the Free plan's execution quota is reached, execution pauses until the account upgrades. Inngest states it is SOC 2 Type II compliant and that its US-based databases are encrypted at rest, with TLS/SSL encryption in transit.

Who it suits

It suits developers building event-driven workflows, background jobs, or agents with TypeScript, Python, or Go. Teams needing traces, concurrency controls, or deployment and monitoring integrations may also find it relevant.

What it does well

Retries, state, and failure recovery are handled by execution steps
Traces cover activity from trigger to completion
Official SDKs are available for TypeScript, Python, and Go
Free plan includes 5 seats and 50k executions

What to know first

Free-plan execution pauses when its quota is reached
Pro starts at $99 a month
Enterprise pricing is custom

Limits

The Free plan includes 5 seats, 50k executions, 500k events ingested, and 24-hour trace history. Execution pauses when the included execution quota is reached until the account upgrades.

Plans

Plan	Billed and limits	Price
Free	$0/mo · 5 seats · 50k executions · 5 concurrent steps · 3 workers · unlimited serverless workers · 500k events · 100k queue depth · 50 realtime connections · 256 KiB event size	Free
Business	Starting at $499/mo · 30 seats · 10M executions plus add-on · 500 concurrent steps · 100 workers plus add-on · 50M+ events · 10M+ queue depth · 5,000 realtime connections · 3 MiB event size	$499 a month
Pro	Starting at $99/mo · 15 seats · 1M executions plus add-on · 100+ concurrent steps · 20 workers plus add-on · 5M+ events · 1M+ queue depth · 1,000 realtime connections · 3 MiB event size	$99 a month
Enterprise	Custom; contact us · Custom seats, executions, concurrent steps, workers, event limits and queue depth · SAML · RBAC · audit trails · HIPAA included · dedicated Slack channel · dedicated account management	On request

As inngest.com lists them, read 15 Oct 2026. The maker's own page has the final word.

Getting started

Visit the Inngest website.
Choose the Free plan or a paid plan.
Use an official TypeScript, Python, or Go SDK, or the REST API.
Deploy functions wherever your app is hosted, using a platform guide if applicable.

Verdict

Inngest provides durable execution, observability, and flow controls for asynchronous workflows. The Free plan has defined execution and trace limits, and execution pauses at the quota until the account upgrades.

Questions

Is Inngest free?

Yes. The Free plan costs nothing and includes 5 seats, 50k executions, 500k events ingested, and 24-hour trace history.

What does Pro cost?

Pro is $99 a month, billed starting at. It includes 15 seats, 1M executions plus add-on, 100+ concurrent steps, 5M+ events ingested, and 7-day trace history.

Which languages and platforms does Inngest support?

Official SDKs are available for TypeScript, Python, and Go, alongside a REST API. The listed platforms are API, Linux, self-hosted, and web.

Is Inngest open source?

Inngest describes itself as open core and provides official open-source SDKs for TypeScript, Python, and Go.

What does Enterprise include?

Enterprise has custom executions and limits, SAML, RBAC, audit trails, HIPAA, a dedicated Slack channel, and dedicated account management. Its price is custom.

Does Inngest offer a free trial?

No. Inngest lists no free trial.

Facts from Inngest's own pages

Agent evaluations: Agent Evals attach outcome scores to runs and support comparing prompts, models and workflow variants. · inngest.com, 15 Oct 2026
Changelog news: The October 6, 2026 changelog introduced bursty concurrency for Pro and higher plans, allowing up to three times the account concurrency limit for a monthly time budget. · inngest.com, 15 Oct 2026
Company: Inngest describes itself as open core and says it released its event driven workflow product in 2022. · inngest.com, 3 Oct 2026
Company size: LinkedIn lists Inngest as a privately held software-development company with 11–50 employees. · linkedin.com, 15 Oct 2026
Data protection: Inngest says its databases are located in the United States, encrypted at rest, and its applications use TLS/SSL encryption in transit. · inngest.com, 3 Oct 2026
Deployment: Inngest functions can run wherever an app is hosted, with platform guides for Vercel, Netlify, Cloudflare Pages, Render, and DigitalOcean. · inngest.com, 3 Oct 2026
Documentation depth: Documentation includes concepts, quick starts, limits, SDK references, deployment, operations, examples, MCP and LLM-friendly documentation. · inngest.com, 15 Oct 2026
Durable execution: The platform coordinates steps, waits, retries and events so runs can complete after failures. · inngest.com, 15 Oct 2026
Earlier funding: Inngest announced $6.1 million of funding led by Andreessen Horowitz on January 30, 2024. · inngest.com, 15 Oct 2026
Encryption: The service encrypts database data at rest and traffic in transit, with optional customer-side encryption middleware and keys. · inngest.com, 15 Oct 2026
Enterprise support: The Enterprise plan includes a dedicated Slack channel and dedicated account management. · inngest.com, 3 Oct 2026
Flow control: Flow-control features manage concurrency, throughput and fairness across tenants. · inngest.com, 15 Oct 2026
Founded: 2022 · inngest.com, 28 Sept 2026
Founded and headquarters: LinkedIn lists the company as founded in 2021 and headquartered in San Francisco, California. · linkedin.com, 15 Oct 2026
Framework integrations: The serve handler supports Astro, AWS Lambda, Bun, Cloudflare, Express, Fastify, Hono, NestJS, Next.js, Nuxt, Remix, SvelteKit and other listed frameworks. · inngest.com, 15 Oct 2026
Funding news: Inngest announced a $21 million Series A on September 16, 2025, led by Altimeter with participation from A16z, Notable, Afore and Guillermo Rauch. · inngest.com, 15 Oct 2026
Hosting integrations: Vercel and Netlify integrations automatically synchronize apps on deployment. · inngest.com, 15 Oct 2026
Independent performance limit: Cadence's review says Inngest is a poor fit for heavy CPU or GPU work and for requirements needing sub-100-millisecond job pickup. · cadence.withremote.ai, 15 Oct 2026
Independent performance praise: Cadence's review highlights the local Dev Server, step-level retries, fan-out parallelism and concurrency controls as major strengths. · cadence.withremote.ai, 15 Oct 2026
Installation: The documented local installation uses a curl installer, then starts the Dev Server with an application endpoint URL. · inngest.com, 15 Oct 2026
Integrations: The documentation describes integrations for Vercel and Netlify deployment syncs, Neon database events, and Datadog and Prometheus monitoring. · inngest.com, 3 Oct 2026
Licence: The server and CLI use the Server Side Public License with delayed Apache 2.0 publication, while SDKs use Apache 2.0. · github.com, 15 Oct 2026
Limit: G2 setup and documentation: That reviewer reports that learning event workflows takes time and asks for more examples and clearer advanced-use-case explanations. · g2.com, 15 Oct 2026
Limit: high-volume pricing: Spotsaas says per-run pricing may become significant for very frequent background tasks and recommends cost modeling. · spotsaas.com, 15 Oct 2026