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LlamaIndex vs Marqo

LlamaIndex scores higher on the AgentReady, 52/100 against 38/100. 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

LlamaIndex. LlamaIndex provides document parsing and extraction tools that turn complex documents into AI-ready context.

Marqo. Marqo is a search and product discovery platform built for ecommerce that uses LLM-based retrieval to continuously learn from shopper behavior and surface relevant, high-converting products.

Where LlamaIndex is ahead

LlamaIndex passes llms.txt published and llms-full.txt / full agent docs, and Marqo 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. Marqo misses it.

And on adopt, self-service signup, agent-compatible signup flow, fast time to first request and copyable quickstart. Marqo misses those.

What neither does

Both fail clear canonical domain, clear product positioning, mcp discoverable, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, programmatic credential creation, cli available, mcp integration available, structured, predictable output, 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. LlamaIndex leads 67 to 53. LlamaIndex misses clear canonical domain, clear product positioning, mcp discoverable; Marqo misses clear canonical domain, clear product positioning, llms.txt published, llms-full.txt / full agent docs, mcp discoverable.

Understand. LlamaIndex leads 46 to 38. LlamaIndex misses openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented; Marqo misses openapi / spec quality, authentication documented, 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. LlamaIndex leads 60 to 25. LlamaIndex misses no mandatory sales call, programmatic credential creation, cli available, mcp integration available; Marqo misses self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart, cli available, mcp integration available.

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

Pricing

LlamaIndex starts at $0/mo and has a free tier. Marqo does not publish one with no free tier.

Signal by signal

Which to pick

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

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