UCP Score leaderboard
The stores we check, ranked by UCP Score: a number from 0 to 100 for how well a store's UCP profile follows the spec and what it lets a UCP agent do, made of Discovery, Conformance and Capabilities.
The UCP Score weighs Discovery 30%, Conformance 40% and Capabilities 30%. How the score is made →
Send an ETag or Last-Modified header with /.well-known/ucp so agents can revalidate their cached copy cheaply.
Serve /.well-known/ucp with "Cache-Control: public, max-age=300" (public, at least 60 seconds, never private, no-store or no-cache).
Make supported_versions an object: each key a protocol version date, each value the https URL of the profile for that version.
Spec checks every status page shows. Each store's own fixes are on its status page.
| Rank | Store | Score ↓ | Discovery | Conformance | Capabilities | Store platform |
|---|---|---|---|---|---|---|
| 1 |  agentdiet.dev |
100 A | 100 | 100 | 100 | Shopware |
| 2 |  alpha-stream.agentdiet.dev |
100 A | 100 | 100 | 100 | Shopware |
| 3 |  arxiv-digest.agentdiet.dev |
100 A | 100 | 100 | 100 | Shopware |
| 4 | 100 A | 100 | 100 | 100 | Shopware | |
| 5 | 100 A | 100 | 100 | 100 | Custom or not identified | |
| 6 |  company-enrich.agentdiet.dev |
100 A | 100 | 100 | 100 | Shopware |
| 7 |  cve-intel.agentdiet.dev |
100 A | 100 | 100 | 100 | Shopware |
| 8 |  defi-yield.agentdiet.dev |
100 A | 100 | 100 | 100 | Shopware |
| 9 | 100 A | 100 | 100 | 100 | Custom or not identified | |
| 10 |  domain-osint.agentdiet.dev |
100 A | 100 | 100 | 100 | Shopware |
Stores whose UCP profile we could read, valid or not; not found, blocked and unreachable stores have no score. Stores with the same score share a rank. Each store links to its score page.