Compare

Deno Deploy vs Heroku

Heroku scores higher on the AgentReady, 63/100 against 52/100. They differ on 7 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Deno Deploy. Deno is a fast, open-source, fully Node-compatible JavaScript runtime with TypeScript and everything else you need baked right in.

Heroku. Heroku is a fully managed cloud application platform (PaaS) for building, deploying, and scaling apps.

Where Deno Deploy is ahead

Deno Deploy passes agent compatibility verified, and Heroku does not. That is operate, whether an agent can run against it in production and recover when a call fails.

Where Heroku is ahead

Heroku passes clear canonical domain and mcp discoverable, and Deno Deploy does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: limits / constraints documented. Deno Deploy misses it.

And on adopt, copyable quickstart and mcp integration available. Deno Deploy misses those.

Finally, on operate, structured, predictable output. Deno Deploy misses it.

What neither does

Both fail openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented, self-service signup, programmatic credential creation, free trial or free allowance, fast time to first request, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable. 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. Heroku leads 100 to 80. Deno Deploy misses clear canonical domain, mcp discoverable; Heroku misses nothing.

Understand. Heroku leads 38 to 31. Deno Deploy misses openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Heroku misses openapi / spec quality, authentication documented, pricing understandable, request examples provided, response examples provided, errors and status codes documented.

Adopt is whether an agent can get a key and make its first successful call without a human in the loop. Heroku leads 65 to 45. Deno Deploy misses self-service signup, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart, mcp integration available; Heroku misses self-service signup, programmatic credential creation, free trial or free allowance, fast time to first request.

Operate. Deno Deploy leads 53 to 47. Deno Deploy misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable; Heroku misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Deno Deploy does not publish a machine-readable starting price. Heroku does not publish one.

Signal by signal

Which to pick

Heroku clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Deno Deploy and Heroku. Alternatives to each: Deno Deploy, Heroku.

An agent can fetch this as data: POST /v1/compare {"slugs": ["deno", "heroku"]}