AI Product Index / Agent-readability leaderboard

Agent-readability leaderboard

Every product in this registry, graded by the same public endpoint anyone can call on any URL. Re-scored weekly, unedited.

50
sites graded
67.4
average score
1
at 100/100
2026-09-14
last re-scored

Check set v2. Grades come from GET /api/score, which is free and which you can run against your own site right now. Raw: scores.json.

#sitegradescorepassed
1 AI Product Index A 100 20/20
2 Agent Readability Service A 98 19/20
3 Vocab Voyage A 92 19/20
4 Gieldowy Express A 91 15/20
5 Konkursy i loterie bez zakupu A 91 15/20
6 Wykop czy Wyborcza? A 91 15/20
7 Rentgen Ofert A 91 15/20
8 AI Visibility Checker A 90 15/20
9 FXMacroData A 90 15/20
10 Przetargi Miejskie B 89 14/20
11 Stare Aparaty B 89 14/20
12 Food Near Me B 86 13/20
13 Cap B 85 14/20
14 Chiplab B 82 14/20
15 Hlido Agent Reviews C 77 15/20
16 ChangeThisFile C 75 14/20
17 FluentEDI C 74 14/20
18 send21 C 73 12/20
19 SOMA Brewing Company C 73 12/20
20 3TG Test Generation C 71 11/20
21 Carbone MCP C 71 11/20
22 fastCRW C 71 11/20
23 Penroll App C 71 11/20
24 UltraMemory C 71 11/20
25 Default Privacy C 70 11/20
26 PZERO D 69 11/20
27 Arcadia Finance D 67 15/20
28 BezBaseina D 67 10/20
29 Dash D 67 10/20
30 FUTIA D 67 10/20
31 Signvoy D 63 10/20
32 Niche — Editorial Intelligence D 62 11/20
33 Magic Hour MCP D 61 10/20
34 ModelRush D 61 9/20
35 CaudexCatena MCP E 59 9/20
36 100Hires - AI ATS & Recruitment Software E 55 9/20
37 XiuRouter E 55 8/20
38 Avo E 54 9/20
39 msgboard.dev E 54 9/20
40 Truthifi Connect E 53 9/20
41 Mowgli E 51 8/20
42 Obol Blockchain Data E 49 8/20
43 Environmental Compliance E 48 8/20
44 JP Bids MCP E 48 8/20
45 LLM Optimizer E 48 8/20
46 NewzAI MCP Server E 48 8/20
47 Scite F 43 7/20
48 Embers: Tabletop RPG Toolkit F 37 7/20
49 Boundr F 16 3/20
50 Question Machine F 4 1/20

How to move up this table

Every grade here is reproducible: call https://index.percall.dev/api/score?url=YOUR_SITE and you get the same letter, the same score, and the name of every check that failed — free, no signup. What the $0.05 paid call adds is why each one failed and a paste-ready snippet for your own domain.

The checks themselves are documented one page each, with the fix: the checklist.

A grade that says "not scored yet" means the weekly cron has not reached that listing, not that it failed. A transient failure keeps the previous week's grade rather than blanking it.