Compare

Fastly vs Vercel

Vercel scores higher on the AgentReady, 93/100 against 60/100. They differ on 13 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Fastly. Fastly is an edge cloud platform company that helps businesses build, secure, and deliver fast, scalable sites and apps.

Vercel. Vercel is a cloud platform for deploying and scaling web applications, with infrastructure that supports AI agents and applications that scale from zero to millions instantly.

Where Fastly is ahead

Fastly passes search discoverable and public docs discoverable, and Vercel 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. Vercel misses it.

And on adopt, fast time to first request, copyable quickstart, official typescript sdk and official python sdk. Vercel misses those.

Finally, on operate, canonical workflow succeeds and observable execution. Vercel misses those.

Where Vercel is ahead

Vercel passes clear product positioning and llms-full.txt / full agent docs, and Fastly 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. Fastly misses it.

And on operate, agent compatibility verified. Fastly misses it.

What neither does

Both fail openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, programmatic credential creation, 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. Vercel leads 100 to 80. Fastly misses clear product positioning, llms-full.txt / full agent docs; Vercel misses search discoverable, public docs discoverable.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Vercel leads 92 to 46. Fastly misses openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented; Vercel misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Vercel leads 100 to 80. Fastly misses no mandatory sales call, programmatic credential creation; Vercel misses no mandatory sales call, programmatic credential creation, fast time to first request, copyable quickstart, official typescript sdk, official python sdk.

Operate. Vercel leads 78 to 35. Fastly misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Vercel misses canonical workflow succeeds, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution.

Pricing

Fastly starts at $0/mo and has a free tier. Vercel starts at $20/mo and has a free tier.

Signal by signal

Which to pick

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

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