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Logto vs Stytch

Logto scores higher on the AgentReady, 58/100 against 51/100. They differ on 7 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Logto. Logto is an open-source authentication and identity platform built for developers, offering auth, SSO, and RBAC for SaaS, AI agents, and B2B apps.

Stytch. The identity platform for humans & AI agents.

Where Logto is ahead

Logto passes pricing understandable and limits / constraints documented, and Stytch 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, agent-compatible signup flow and free trial or free allowance. Stytch misses those.

Where Stytch is ahead

Stytch passes copyable quickstart, and Logto does not. That is adopt, whether an agent can get a key and make its first successful call without a human in the loop.

It also holds operate: structured, predictable output. Logto misses it.

What neither does

Both fail mcp discoverable, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, programmatic credential creation, fast time to first request, cli available, 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. Both sit at 87/100 here. Logto misses mcp discoverable; Stytch misses mcp discoverable.

Understand. Logto leads 54 to 38. Logto misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented; Stytch misses openapi / spec quality, pricing understandable, 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. Logto leads 50 to 29. Logto misses no mandatory sales call, programmatic credential creation, fast time to first request, copyable quickstart, cli available, mcp integration available; Stytch 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, cli available, mcp integration available.

Operate. Stytch leads 50 to 39. Logto misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Stytch misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Logto starts at $0/mo and has a free tier. Stytch does not publish one.

Signal by signal

Which to pick

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

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