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cron-job.org vs Inngest

Inngest scores higher on the AgentReady, 61/100 against 40/100. They differ on 16 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

cron-job.org. A free web-based cron job scheduling service that executes websites and scripts at scheduled intervals, from minute-by-minute to once a year.

Inngest. Inngest is an event-driven durable execution platform that allows developers to run fast, reliable code on any platform without managing queues, infrastructure, or state.

Where cron-job.org is ahead

cron-job.org passes search discoverable, and Inngest does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: authentication documented. Inngest misses it.

And on adopt, no mandatory sales call. Inngest misses it.

Where Inngest is ahead

Inngest passes clear canonical domain, clear product positioning, llms.txt published, llms-full.txt / full agent docs, mcp discoverable and machine-readable metadata, and cron-job.org does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: structured api reference and limits / constraints documented. cron-job.org misses those.

And on adopt, fast time to first request, copyable quickstart, official python sdk and mcp integration available. cron-job.org misses those.

Finally, on operate, idempotency support. cron-job.org misses it.

What neither does

Both fail openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, agent-compatible signup flow, programmatic credential creation, structured, predictable output, machine-readable errors, retry behavior documented, rate-limit behavior predictable, agent compatibility verified. If your agent needs any of those, you will be building it yourself either way.

Score, pillar by pillar

The AgentReady splits into four pillars, scored separately, because a product can be easy to find and still impossible to adopt.

Discover is whether an agent can find the product at all without being told it exists. Inngest leads 87 to 47. cron-job.org misses clear canonical domain, clear product positioning, llms.txt published, llms-full.txt / full agent docs, mcp discoverable, machine-readable metadata; Inngest misses search discoverable.

Understand. Inngest leads 46 to 31. cron-job.org misses structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Inngest misses openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented.

Adopt. Inngest leads 70 to 45. cron-job.org misses agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart, official python sdk, mcp integration available; Inngest misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation.

Operate. Inngest leads 41 to 35. cron-job.org misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Inngest misses structured, predictable output, machine-readable errors, retry behavior documented, rate-limit behavior predictable, agent compatibility verified.

Pricing

cron-job.org does not publish a machine-readable starting price and has a free tier. Inngest starts at $99/mo and has a free tier.

Signal by signal

Which to pick

Inngest clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: cron-job.org and Inngest. Alternatives to each: cron-job.org, Inngest.

An agent can fetch this as data: POST /v1/compare {"slugs": ["cron-job", "inngest"]}