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Bump vs Fly.io

Fly.io scores higher on the AgentReady, 53/100 against 52/100. They differ on 10 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Bump. Bump.sh is a platform for API documentation and MCP (Model Context Protocol) servers that automatically generates docs and production-ready MCP servers from OpenAPI, AsyncAPI, and Arazzo specifications.

Fly.io. Fly.io provides real hardware-isolated Linux computers (called Sprites and Machines) for agents, evals, and tools, with a pay-as-you-go model where billing goes to zero when not in use.

Where Bump is ahead

Bump passes clear product positioning, and Fly.io 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 authentication documented. Fly.io misses those.

And on adopt, copyable quickstart. Fly.io misses it.

Finally, on operate, retry behavior documented. Fly.io misses it.

Where Fly.io is ahead

Fly.io passes clear canonical domain and llms.txt published, and Bump does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: pricing understandable. Bump misses it.

And on adopt, self-service signup. Bump misses it.

Finally, on operate, agent compatibility verified. Bump misses it.

What neither does

Both fail llms-full.txt / full agent docs, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, free trial or free allowance, fast time to first request, structured, predictable output, machine-readable errors, 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. Bump misses clear canonical domain, llms.txt published, llms-full.txt / full agent docs; Fly.io misses clear product positioning, llms-full.txt / full agent docs.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Bump leads 38 to 23. Bump misses openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Fly.io misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Fly.io leads 55 to 45. Bump misses self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, free trial or free allowance, fast time to first request; Fly.io misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart.

Operate. Fly.io leads 53 to 44. Bump misses structured, predictable output, machine-readable errors, idempotency support, rate-limit behavior predictable, agent compatibility verified; Fly.io misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable.

Pricing

Bump does not publish a machine-readable starting price. Fly.io starts at $29/mo.

Signal by signal

Which to pick

Signal counts are level here, so fit and price decide it. Full profiles: Bump and Fly.io. Alternatives to each: Bump, Fly.io.

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