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Deno Deploy vs Modal

Modal scores higher on the AgentReady, 55/100 against 52/100. They differ on 4 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.

Modal. Modal provides a serverless cloud for engineers and researchers who want to build compute-intensive applications without thinking about infrastructure.

Where Deno Deploy is ahead

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

Where Modal is ahead

Modal passes pricing understandable, and Deno Deploy does not. That is understand, whether an agent can read the docs and work out how the API behaves before calling it.

It also holds adopt: self-service signup and free trial or free allowance. Deno Deploy misses those.

What neither does

Both fail clear canonical domain, mcp discoverable, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, programmatic credential creation, fast time to first request, copyable quickstart, mcp integration available, structured, predictable output, 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. Both sit at 80/100 here. Deno Deploy misses clear canonical domain, mcp discoverable; Modal misses clear canonical domain, mcp discoverable.

Understand. Modal 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; Modal misses openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt is whether an agent can get a key and make its first successful call without a human in the loop. Modal 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; Modal misses programmatic credential creation, fast time to first request, copyable quickstart, mcp integration available.

Operate. Deno Deploy leads 53 to 35. Deno Deploy misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable; Modal misses structured, predictable output, 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. Modal starts at $0/mo and has a free tier.

Signal by signal

Which to pick

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

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