Is agentmail.to agent ready?
agentmail.to is largely agent ready: it scores 68/100 (grade B) on the w2agent rubric. Weakest areas: Agent Discovery (33), Structured Data (44).
Changed since last check
−2 points since the previous check (2026-09-16)
Fixed: Content negotiation (Markdown)
Regressed: Response time, Scoped API permissions
Category scores
Technical
89
Agent Auth
77
Agent Discovery
33
Agent Protocols
58
Content Quality
82
Structured Data
44
Bot Accessibility
86
Agent protocol panel
- A2A agent cardNot found
- OAuth discoveryPresent
- MCP discoveryPresent
- llms.txt validityPresent
Check results
Bot Accessibility
- ✓No error status codespass
- ✗Response timefail
- ✓XML sitemap existspass
- ✓AI agent accesspass
- ✓Edge treatment of agent user-agentstracked, not scoredpass
- ✓robots.txt existspass
- ✓Content negotiation (Markdown)pass
- —Declared AI usage preferencestracked, not scoredskip
Structured Data
- ~OpenGraph meta tagspartial
- ~Semantic HTML elementspartial
- ~Appropriate Schema.org typepartial
- ~JSON-LD validpartial
- ~Heading hierarchypartial
- ~Schema.org JSON-LD presentpartial
- ~Schema.org completenesspartial
Content Quality
- ✓FAQ contentpass
- ✓Answer-first contentpass
- ✓Content lengthpass
- ✓Token efficiency (HTML-to-text ratio)pass
- ~Freshness signalspartial
- ~Author attributionpartial
- ✓Citation readinesspass
- ✓Lists and tables for structured infopass
Agent Discovery
- ✓llms.txt follows specpass
- ✓llms.txt existspass
- ✗MCP server cardtracked, not scoredfail
- ✗Markdown alternate linksfail
- ✗/.well-known/agent-card.jsonfail
- ~llms.txt links resolvepartial
Agent Protocols
- ✗Discoverable API endpointsfail
- ✓MCP endpointpass
- ✗Action schemasfail
- —/.well-known/ucpskip
- ✓Structured formspass
- —WebMCP imperative APItracked, not scoredskip
- —WebMCP declarative APItracked, not scoredskip
- ✓Reachable as Google-Agentpass
- ✓Reachable as ChatGPT-Userpass
- ✓Reachable as Perplexity-Userpass
Agent Auth
- —MCP authorization (401 challenge → protected resource metadata)skip
- ✓PKCE S256 supportpass
- ✓Public API surfacepass
- —Client ID Metadata Documents (bonus)skip
- ✗OpenAPI specificationfail
- ✓Agent/bot auth documentationpass
- ✓OAuth discovery chain (RFC 9728 → RFC 8414)pass
- ✓Developer portalpass
- ✗Scoped API permissionsfail
- ✓API catalog (RFC 9727)pass
- —Agent operator signing directorytracked, not scoredskip
Technical
- ✓HTTPSpass
- ✓UTF-8 charsetpass
- ✓Canonical URLspass
- ✓Mobile viewportpass
- ✓Content accessible without JSpass
- ~Security headerspartial
Other
- ✗nextjs-metadata-apifail
- ✓nextjs-static-generationpass
- ✗nextjs-well-known-servedfail
Score history
- 68/100 · rubric v3.0
- 70/100 · rubric v3.0
- 68/100 · rubric v3.0
- 61/100 · rubric v2.0
- 61/100 · rubric v2.0
- 59/100 · rubric v2.0
- 56/100 · rubric v2.0
- 50/100 · rubric v2.0
- 49/100 · rubric v2.0
- 49/100 · rubric v2.0
- 48/100 · rubric v2.0