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Langfuse vs New Relic

Langfuse scores higher on the AgentReady, 57/100 against 51/100. They differ on 6 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Langfuse. Langfuse is an open-source AI engineering platform that helps teams collaboratively debug, analyze, and iterate on their AI agent applications.

New Relic. Intelligent Observability platform that resolves issues at scale before they impact bottom line

Where Langfuse is ahead

Langfuse passes llms-full.txt / full agent docs and mcp discoverable, and New Relic 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. New Relic misses it.

And on adopt, mcp integration available. New Relic misses it.

Where New Relic is ahead

New Relic passes clear canonical domain, and Langfuse does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds adopt: agent-compatible signup flow. Langfuse misses it.

What neither does

Both fail structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, no mandatory sales call, programmatic credential creation, 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 is whether an agent can find the product at all without being told it exists. Langfuse leads 93 to 80. Langfuse misses clear canonical domain; New Relic misses llms-full.txt / full agent docs, mcp discoverable.

Understand. Langfuse leads 31 to 23. Langfuse misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented; New Relic misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Langfuse leads 70 to 65. Langfuse misses no mandatory sales call, agent-compatible signup flow, programmatic credential creation; New Relic misses no mandatory sales call, programmatic credential creation, mcp integration available.

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

Pricing

Langfuse does not publish a machine-readable starting price and has a free tier. New Relic does not publish one and has a free tier.

Signal by signal

Which to pick

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

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