Let Agents In

Agent readiness · Notification infrastructure

novu.co

12 of 15 measurable points under formula 9.2, measured on 2026-08-12. 15 checks exist; each is one HTTP request with a published rule, so every sentence below can be rerun and argued with. 1 of them could not be measured from where we ask, and those are left out of the denominator rather than counted as failures.

A · Discovery

  • PASS
    Answers an agent user-agentAnswered 200 to LetAgentsIn/1.0 (+https://letagentsin.com/methodology)
  • PASS
    llms.txt publishedllms.txt and llms-full.txt present at https://novu.co/llms.txt and https://docs.novu.co/llms.txt and https://docs.novu.co/llms-full.txt, and the 12 links we sampled across both files all answer
  • PASS
    Docs readable without JavaScript32,655 characters of text without JS, on https://docs.novu.co/api-reference/subscribers/update-provider-credentials rather than on https://docs.novu.co/
  • PASS
    On-demand agents not blockedNo on-demand agent is blocked
  • N/A
    Paths robots.txt points at answerrobots.txt names no concrete path, only patterns or nothing, so there is no claim to check
  • PASS
    No punishing crawl delayNo Crawl-delay applies to the agents we check

B · Agent entry

  • PASS
    Agent entry pointFound: https://novu.co/agents.md
  • PASS
    OAuth dynamic client registrationregistration_endpoint published, but none of the 2 advertised grants (authorization_code, refresh_token) finishes without a person at a browser
  • PASS
    MCP surfaceLive MCP endpoint at https://mcp.novu.co, answered 401 with an auth challenge

C · Registration

  • UNMEASURED
    No CAPTCHA in the signup HTMLUnmeasurable: the signup form at https://dashboard.novu.co/auth/sign-up is not in the server HTML, so its gates are not eitherServer-render the form, or tell us the endpoint it posts to, and the gates become visible to us and to an agent.
  • FAIL
    Signup reachable without a browserhttps://dashboard.novu.co/auth/sign-up is reachable, but its form needs JavaScript

D · Provisioning

  • FAIL
    Programmatic key provisioningNone of the 7 provisioning phrases appears in the 7 documents we read
  • PASS
    Free tier or no-card trial stated in textFree tier or no-card signals at https://novu.co/pricing/: "No credit card", "free account", "$0"

E · Integration

  • PASS
    Typed SDK on the registry@novu/js@3.19.0 ships types, matched from the registry by who publishes it rather than by a link on your site
  • PASS
    Machine-readable API descriptionDocs serve markdown to machines, at https://docs.novu.co/

Tell me when this changes

The failures here are the kind nobody notices. An edge rule that starts refusing agents changes nothing a person sees in a browser, so the first sign is usually an integration that quietly stopped working. We rescan weekly and write only when a verdict moves.

This page is the newest scan we hold for novu.co and changes when we rescan. It is not a judgement of the product: we measure whether an unattended run can get through, not whether the thing is any good. The whole corpus is published as JSON and CSV.

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