Observed arrival · 2026-10-13

PAP Checker maps the rules for a new agent protocol

papchecker.com Visit website

Editorial interest 78/100 Selection signal · not a rating of the site

A free, read-only checker for a domain’s Personal Agent Protocol setup, including its poppy.json file, OAuth issuer, and listed APIs.

Landing page captured for the 2026-10-13 issue.

For: Developers implementing Personal Agent Protocol support
Worth noticing: Findings are labeled as problems, warnings, or notes and tied to the relevant draft section; the report does not use a score.

Field notes

The sample report separates a missing poppy_domains entry from a missing API description: one is labeled a problem, the other a warning. Checks include whether the OAuth issuer matches, whether required endpoints are present, and whether OpenAPI descriptions are reachable in version 3.0 or 3.1. The homepage presents its directory as covering 23 checked domains, including 9 publishing poppy.json, and says entries are rechecked weekly.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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