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Supabase vs Weaviate

Supabase and Weaviate score alike on the AgentReady. They differ on 18 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Supabase. Supabase is an open-source Firebase alternative that provides a complete backend platform built on top of Postgres, offering database, authentication, storage, realtime, edge functions, and vector capabilities.

Weaviate. Weaviate is an open-source, AI vector database designed to store and index both data objects and their vector embeddings, enabling advanced semantic search capabilities.

Where Supabase is ahead

Supabase passes authentication documented, and Weaviate does not. That is understand, whether an agent can read the docs and work out how the API behaves before calling it.

Where Weaviate is ahead

Weaviate passes search discoverable, clear canonical domain and public docs discoverable, and Supabase 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, errors and status codes documented and limits / constraints documented. Supabase misses those.

And on adopt, self-service signup, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart, official typescript sdk and official python sdk. Supabase misses those.

Finally, on operate, canonical workflow succeeds, machine-readable errors, idempotency support and rate-limit behavior predictable. Supabase misses those.

What neither does

Both fail openapi / spec quality, request examples provided, response examples provided, no mandatory sales call, structured, predictable output, retry behavior documented, observable execution, 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. Both sit at 100/100 here. Supabase misses search discoverable, clear canonical domain, public docs discoverable; Weaviate misses nothing.

Understand. Supabase leads 67 to 62. Supabase misses openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Weaviate misses openapi / spec quality, authentication documented, request examples provided, response examples provided.

Adopt is whether an agent can get a key and make its first successful call without a human in the loop. Weaviate leads 80 to 63. Supabase misses self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart, official typescript sdk, official python sdk; Weaviate misses no mandatory sales call, agent-compatible signup flow.

Operate. Supabase leads 67 to 53. Supabase misses canonical workflow succeeds, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified; Weaviate misses structured, predictable output, retry behavior documented, observable execution, agent compatibility verified.

Pricing

Supabase does not publish a machine-readable starting price. Weaviate does not publish one and has a free tier.

Signal by signal

Which to pick

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

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