VercatusAgent readiness
What an AI agent needs to act on the site for a buyer: machine-readable offers and policies, checkout protocols, signed agents on purchase paths, forms it can fill, and tools it can call.
- 27 published entries
- A25 grade A
- C2 grade C
- earliest re-check due 2026-12
A grade describes where an entry's sources come from, not how likely a change is to work. How grades are used
- Aofficial documentation or a standardR-025
Acp agentic checkout endpoints
Re-check due 2027-03 - Aofficial documentation or a standardR-024
Acp product feed fields
Re-check due 2027-03 - Aofficial documentation or a standardR-063
Agent payments protocol
Re-check due 2027-03 - Aofficial documentation or a standardR-102
Agent surfaces
Re-check due 2027-09 - Aofficial documentation or a standardR-061
Agentic commerce protocol OpenAI
Re-check due 2027-03 - Aofficial documentation or a standardR-093
Authenticated identity for web bots
Re-check due 2027-03 - Aofficial documentation or a standardR-013
Browser agent interaction semantics
Re-check due 2027-03 - Aofficial documentation or a standardR-040
Captcha on action path
Re-check due 2027-03 - Aofficial documentation or a standardR-039
Form input purpose
Re-check due 2027-09 - Aofficial documentation or a standardR-030
Google agentic checkout buy for me
Re-check due 2027-03 - Aofficial documentation or a standardR-028
Google native commerce checkout eligibility
Re-check due 2027-03 - Aofficial documentation or a standardR-034
Machine payments HTTP 402
Re-check due 2027-03 - Aofficial documentation or a standardR-042
MCP remote server
Re-check due 2027-03 - Aofficial documentation or a standardR-029
Merchant center conversational attributes
Re-check due 2027-03 - Aofficial documentation or a standardR-008
NLWeb and schema endpoints
Re-check due 2027-03 - Aofficial documentation or a standardR-035
Offer state machine readable
Re-check due 2027-06 - Aofficial documentation or a standardR-037
Return shipping policy markup
Re-check due 2027-06 - Aofficial documentation or a standardR-036
Schema actions unconfirmed consumers
Re-check due 2027-06 - Aofficial documentation or a standardR-033
Signed agents on purchase paths
Re-check due 2027-03 - Aofficial documentation or a standardR-026
Stripe shared payment tokens
Re-check due 2027-03 - Aofficial documentation or a standardR-038
Subscription price markup
Re-check due 2027-06 - Aofficial documentation or a standardR-027
Ucp well known profile
Re-check due 2027-03 - Aofficial documentation or a standardR-060
Universal commerce protocol
Re-check due 2027-03 - Aofficial documentation or a standardR-031
Visa trusted agent protocol
Re-check due 2027-03 - Aofficial documentation or a standardR-043
Webmcp page tools
Re-check due 2027-03 - Creputable industry data or observationR-032
Mastercard agent pay acceptance
Re-check due 2027-03 - Creputable industry data or observationR-041
Raw HTML price and action
Re-check due 2026-12
Other topics
- Access and crawlers18
- Answer engines25
- Commercial12
- Content11
- Entities8
- Languages and regions7
- Measurement10
- Performance13
- Policies13
- Retrieval9
- Technical29
- Trust and provenance5
Every entry is searchable together in the full knowledge base. Vercatus plays cite entries by id. How the base is curated.