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Backblaze B2 vs Uploadthing

Backblaze B2 scores higher on the AgentReady, 48/100 against 40/100. They differ on 11 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Backblaze B2. Cloud storage and computer backup services provider offering S3-compatible object storage and backup solutions for businesses and individuals

Uploadthing. UploadThing is a file upload service for developers, positioned as an easier and safer alternative to AWS S3.

Where Backblaze B2 is ahead

Backblaze B2 passes llms.txt published, llms-full.txt / full agent docs and machine-readable metadata, and Uploadthing 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. Uploadthing misses it.

And on adopt, official python sdk and cli available. Uploadthing misses those.

Finally, on operate, observable execution. Uploadthing misses it.

Where Uploadthing is ahead

Uploadthing passes authentication documented, and Backblaze B2 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: fast time to first request and copyable quickstart. Backblaze B2 misses those.

And on operate, structured, predictable output. Backblaze B2 misses it.

What neither does

Both fail clear product positioning, mcp discoverable, 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, mcp integration available, machine-readable errors, retry behavior documented, idempotency support, 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. Backblaze B2 leads 73 to 53. Backblaze B2 misses clear product positioning, mcp discoverable; Uploadthing misses clear product positioning, llms.txt published, llms-full.txt / full agent docs, mcp discoverable, machine-readable metadata.

Understand. Backblaze B2 leads 38 to 31. Backblaze B2 misses openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Uploadthing misses structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Backblaze B2 leads 45 to 40. Backblaze B2 misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart, mcp integration available; Uploadthing misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation, official python sdk, cli available, mcp integration available.

Operate. Both sit at 35/100 here. Backblaze B2 misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Uploadthing misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified.

Pricing

Backblaze B2 does not publish a machine-readable starting price and has a free tier. Uploadthing starts at $0/month and has a free tier.

Signal by signal

Which to pick

Backblaze B2 clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Backblaze B2 and Uploadthing. Alternatives to each: Backblaze B2, Uploadthing.

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