vercel.com
Journey
88.9/ 100
A · Strong technical baseline
Waymark scored vercel.com 88.9/100 (A) on 7 Sep 2026.
vercel.com is mostly ready. Access is the strongest layer, and Usability is the open one. Next: idempotency signal.
FindStrong
18.6/20
18 of 20 checks passed
DoorStrong
28.5/30
37 of 41 checks passed
ToolsMixed
32.9/40
23 of 28 checks passed
Pay
N/A
No cart or pay rail — out of the denominator.
Group by
1. Can an agent discover and trust you? 89/100
Whether an agent can find this origin from public files and treat it as the real one.
pass
HTTPS reachable
2/2
Evidence. Homepage responded 200 over HTTPS.
Probed homepage.
pass
robots.txt present
2/2
Evidence. Valid robots.txt with User-agent rules.
Probed robots.txt.
pass
XML sitemap
2/2
Evidence. Found sitemap.xml or sitemap index.
pass
Well-known AI catalog
1/1
Evidence. Found /.well-known AI catalog JSON.
Probed well-known paths.
pass
AGENTS.md
1/1
Evidence. Found /agents.md.
partial
robots.txt AI policy
Required
1/2
Evidence. robots.txt present but no named AI crawlers.
Probed robots.txt.
Recommended fix. Name GPTBot, ClaudeBot, Google-Extended, PerplexityBot and state allow or deny.
pass
Sitemap for agents
Recommended
2/2
Evidence. Sitemap document fetched.
Probed sitemap.
pass
HTTP Link header
bonus
1/1
Evidence. Link: </.well-known/api-catalog>; rel="api-catalog", </.well-known/ai-catalog.json>; rel="ai-catalog"; type="application/ai-catalog+json", </.well-known/agent-skills/
Probed well-known paths.
failed
ai-plugin.json
bonus
0/1
Evidence. No /.well-known/ai-plugin.json.
Probed well-known paths.
Recommended fix. Optionally publish a plugin-style capability manifest.
pass
API catalog linkset
bonus
2/2
Evidence. api-catalog found.
scanner error
Wikipedia sitelink
bonus
0/4
Evidence. Wikidata SPARQL The operation was aborted
Scanner error — not counted as a site fail and not in the score denominator.
scanner error
Wikidata official website
bonus
0/3
Evidence. Wikidata SPARQL The operation was aborted
Scanner error — not counted as a site fail and not in the score denominator.
scanner error
Brand official-website match
Recommended
0/3
Evidence. Wikidata SPARQL The operation was aborted
Scanner error — not counted as a site fail and not in the score denominator.
pass
Public MCP registry listing
bonus
1/1
Evidence. Registry hit at https://registry.modelcontextprotocol.io/v0/servers?search=vercel.
Probed public URLs named in the evidence.
pass
Package homepage match
bonus
1/1
Evidence. npm package homepage matches vercel.com.
Probed homepage.
pass
Sitemap lastmod
bonus
1/1
Evidence. Sitemap has lastmod.
n/a
related-website-set
bonus
0/1
Evidence. No related-website-set (N/A unless multi-origin).
n/a
ads.txt
bonus
0/1
Evidence. No ads inventory (N/A).
2. Do you welcome agents? 92/100
Whether crawlers and signed bots are allowed through rather than blocked at the door.
pass
AI crawlers not blanket-blocked
2/2
Evidence. No blanket Disallow: / for common AI bots.
n/a
robots Crawl-delay
bonus
0/1
Evidence. No Crawl-delay (optional).
n/a
Web Bot Auth keys
Recommended
0/2
Evidence. No http-message-signatures-directory.
partial
CORS / API hint
0.5/1
Evidence. No CORS header or obvious API path.
Recommended fix. If you expose an API, send Access-Control-Allow-Origin for intended clients.
pass
CSP or X-Frame-Options
1/1
Evidence. CSP or X-Frame-Options present.
pass
robots.txt agent-user policy
Required
2/2
Evidence. No Disallow: / for ChatGPT-User, Claude-User, or Perplexity-User (silence passes).
3. Does an agent understand who you are and what you do? 97/100
Whether the site explains the product in language a model can ingest.
pass
Title and description
2/2
Evidence. Title and meta description present.
pass
JSON-LD structured data
4/4
Evidence. application/ld+json script found.
pass
html lang attribute
1/1
Evidence. html[lang] is set.
pass
JSON-LD entities
Recommended
4/4
Evidence. Recognized schema.org types in JSON-LD.
pass
JSON-LD sameAs
bonus
2/2
Evidence. sameAs present.
pass
Open Graph basics
bonus
2/2
Evidence. Open Graph plus canonical.
pass
llms.txt
2/2
Evidence. Found /llms.txt with content.
pass
llms.txt index
Recommended
2/2
Evidence. llms.txt has content.
pass
llms.txt size and links
Recommended
2/2
Evidence. llms.txt 3506 chars, 18 URL(s).
pass
llms-full.txt
bonus
1/1
Evidence. llms-full.txt present.
pass
Section llms.txt
bonus
1/1
Evidence. Fetched /docs/llms.txt.
Probed public URLs named in the evidence.
n/a
NLWeb schemamap
bonus
0/1
Evidence. No schemamap (N/A unless you offer NL search).
pass
Trust pages
Recommended
2/2
Evidence. Trust links found.
n/a
Speakable markup
bonus
0/1
Evidence. No SpeakableSpecification (N/A unless voice content).
n/a
humans.txt
bonus
0/1
Evidence. No /humans.txt (optional).
pass
security.txt
Recommended
1/1
Evidence. RFC 9116 security.txt with Contact.
failed
RSS or Atom feed
0/1
Evidence. No RSS/Atom link.
Recommended fix. Expose an RSS or Atom feed for machine subscribers.
n/a
RSS or Atom document
bonus
0/1
Evidence. No /feed or /rss.xml document.
pass
Agent instruction / when-to-use
Required
3/3
Evidence. llms.txt or agent.txt has a when-to-use / jobs-you-are-for section.
pass
Organization schema completeness
Recommended
2/2
Evidence. Organization JSON-LD includes contactPoint and address.
pass
Schema type breadth
Recommended
2/2
Evidence. JSON-LD types beyond Organization/WebSite: Service, SoftwareApplication, Offer.
pass
Content without JavaScript
Required
3/3
Evidence. Raw HTML has H1 and 44489 visible characters without JavaScript.
4. Can an agent integrate with you? 88/100
Whether there is a documented machine door into the product.
pass
OpenAPI / Swagger link
2/2
Evidence. Homepage links mention OpenAPI or Swagger.
Probed homepage + OpenAPI.
pass
Login or docs link
3/3
Evidence. Login or developer docs link found.
failed
MCP well-known card
0/2
Evidence. MCP mentioned without a well-known card.
Probed well-known paths.
Recommended fix. Publish /.well-known/mcp.json describing your MCP server.
pass
MCP SSE / HTTP hint
1/1
Evidence. Page mentions MCP or SSE transport.
n/a
openapi.json fetchable
0/0
Evidence. Fetched OpenAPI or Swagger document.
Probed OpenAPI.
pass
Webhook or API docs
2/2
Evidence. Webhook or API docs mention found.
pass
Agent skills index
2/2
Evidence. Skills index or mention found.
pass
OpenAPI document
Required
5/7
Evidence. OpenAPI probe.
Probed OpenAPI.
pass
Public API surface
Recommended
7/7
Evidence. Docs or API paths look callable.
pass
Developer portal
Recommended
6/6
Evidence. Developer hub found.
pass
MCP server
Recommended
5/6
Evidence. https://mcp.vercel.com/ initialize 401 on documented MCP (5/6 until public initialize)
Probed public URLs named in the evidence.
partial
MCP server card
Recommended
1/2
Evidence. MCP mentioned without a card.
Recommended fix. Publish /.well-known/mcp.json or mcp/server-card.json.
pass
Agent Skills files
bonus
2/2
Evidence. Skills file or index found.
pass
CLI tool
Recommended
3/3
Evidence. CLI mention found.
pass
GraphQL GET hint
bonus
2/2
Evidence. GraphQL GET or docs mention.
pass
OpenAPI UI page
bonus
1/1
Evidence. Swagger UI or Redoc page found.
n/a
OpenAPI (legacy slot)
0/0
Evidence. OpenAPI/Swagger fetched.
Probed OpenAPI.
5. Is your integration well-built? 89/100
Whether the integration surface is complete enough to call with confidence.
n/a
MCP initialize
Required
0/3
Evidence. OAuth-gated MCP at https://mcp.vercel.com/ (HTTP 401) — not scored.
Probed public URLs named in the evidence.
partial
MCP server card
Recommended
1/2
Evidence. MCP mentioned without a card.
Recommended fix. Publish /.well-known/mcp.json or mcp/server-card.json.
pass
REST typed error model
Recommended
1/1
Evidence. OpenAPI documents a typed error / problem+json shape.
Probed OpenAPI.
pass
REST versioning / deprecation policy
Recommended
1/1
Evidence. OpenAPI shows a version path, header, or deprecation signal.
Probed OpenAPI.
pass
REST pagination pattern
Recommended
1/1
Evidence. OpenAPI documents a cursor/page pagination shape.
Probed OpenAPI.
pass
REST async-job pattern
Recommended
1/1
Evidence. OpenAPI documents 202 / async-job polling.
Probed OpenAPI.
pass
REST response schema coverage
Recommended
1/1
Evidence. Typed 200 schemas on ~63 operations.
pass
Function calling compatibility
Recommended
1/1
Evidence. 82 operationIds and descriptions look function-calling friendly.
pass
REST batch / bulk endpoint
bonus
1/1
Evidence. OpenAPI documents a batch/bulk endpoint.
Probed OpenAPI.
n/a
MCP tool listing
bonus
0/3
Evidence. OAuth-gated MCP — tools/list not failed.
n/a
MCP tool descriptions
bonus
0/3
Evidence. OAuth-gated MCP — tools/list not failed.
n/a
MCP parameter schemas
bonus
0/2
Evidence. OAuth-gated MCP — tools/list not failed.
n/a
MCP tool naming
bonus
0/2
Evidence. OAuth-gated MCP — tools/list not failed.
n/a
MCP tool annotations
bonus
0/2
Evidence. OAuth-gated MCP — tools/list not failed.
n/a
MCP resources exposed
Recommended
0/3
Evidence. OAuth-gated MCP — resources/list not failed.
6. Can an agent use you reliably in production? 77/100
Whether errors, idempotency, and limits are visible before a call fails.
partial
Rate limit signal
Recommended
1/2
Evidence. API surface without a rate-limit signal.
Recommended fix. Document or send rate-limit headers on APIs.
partial
Idempotency signal
Recommended
1/3
Evidence. API surface without idempotency notes.
Recommended fix. Document idempotency keys for mutating calls.
pass
Machine-readable errors
Recommended
4/4
Evidence. JSON/problem error shape found.
n/a
Honest 404
Recommended
0/2
Evidence. Unknown path 200 is not a same-origin homepage shell (N/A).
Probed homepage.
pass
Sandbox / test environment
bonus
2/2
Evidence. Fetched a sandbox/test page.
Probed public URLs named in the evidence.
pass
Agent onboarding friction
Recommended
2/2
Evidence. Docs describe self-serve keys or a free/trial path.
n/a
MCP error handling
bonus
0/2
Evidence. OAuth-gated MCP — bad-call probe skipped.
7. Can an agent authenticate to you? 96/100
Whether an agent can obtain access without a human in the loop.
pass
OAuth / OIDC well-known
2/2
Evidence. OAuth or OIDC discovery document found.
pass
OAuth 2.0 surface
Required
5/5
Evidence. Authorization or token endpoint in discovery.
pass
OAuth AS metadata
Required
3/3
Evidence. AS or OIDC metadata document fetched.
Probed public URLs named in the evidence.
pass
PKCE S256
Required
2/2
Evidence. S256 listed in code_challenge_methods_supported.
pass
OAuth protected resource
Recommended
2/2
Evidence. oauth-protected-resource found.
pass
Scoped permissions
Recommended
5/5
Evidence. Named scopes found.
pass
Scoped permissions
Recommended
2/2
Evidence. scopes_supported from OAuth protected resource: openid.
n/a
auth.md
bonus
0/2
Evidence. No /auth.md (optional).
n/a
auth.md structure
bonus
0/2
Evidence. No /auth.md to grade.
failed
change-password well-known
bonus
0/1
Evidence. Login surface without /.well-known/change-password.
Probed well-known paths.
Recommended fix. If users have passwords, serve /.well-known/change-password.
pass
MCP auth mechanism
bonus
2/2
Evidence. Documented MCP challenges with OAuth.
pass
Agent auth WWW-Authenticate hint
bonus
1/1
Evidence. MCP 401 WWW-Authenticate resource_metadata at https://mcp.vercel.com/.
Probed public URLs named in the evidence.
8. Can an agent transact with you? 100/100
Whether an agent can price, pay, or check out on a documented rail.
n/a
x402 payment
bonus
0/0
Evidence. No cart/SKU/checkout and no live payment rail (Pay N/A).
n/a
Agentic checkout (ACP)
bonus
0/0
Evidence. No cart/SKU/checkout and no live payment rail (Pay N/A).
n/a
ACP delegated payment
bonus
0/0
Evidence. No cart/SKU/checkout and no live payment rail (Pay N/A).
n/a
Universal Commerce Protocol
bonus
0/0
Evidence. No cart/SKU/checkout and no live payment rail (Pay N/A).
n/a
Machine Payments Protocol
bonus
0/0
Evidence. No cart/SKU/checkout and no live payment rail (Pay N/A).
n/a
AP2 - Agent Payments Protocol
bonus
0/0
Evidence. No cart/SKU/checkout and no live payment rail (Pay N/A).
pass
Pricing page
Recommended
3/3
Evidence. Fetched /pricing.
Probed public URLs named in the evidence.
pass
pricing.md
bonus
2/2
Evidence. Fetched /pricing.md.
Probed public URLs named in the evidence.
9. Can a user act through an agent? 100/100
Whether a person can finish a job through an agent-facing UI.
n/a
MCP Apps UI hint
bonus
0/1
Evidence. No MCP Apps hint (N/A unless you return UI).
n/a
A2A agent card
Required
0/2
Evidence. No agent-card.json (N/A unless A2A).
pass
Web app manifest
bonus
1/1
Evidence. Web app manifest fetched.
Probed public URLs named in the evidence.
pass
Listed on skills.sh
bonus
1/1
Evidence. Official skills.sh org vercel-labs/agent-skills.
10. Can an agent operate your website directly? 92/100
Whether an agent can read and operate the site itself when there is no API or MCP.
pass
Markdown negotiation
bonus
1/1
Evidence. Accept markdown returned text/markdown; charset=utf-8.
n/a
/index.md fallback
bonus
0/1
Evidence. No /index.md twin (N/A).
n/a
WebMCP page tools
bonus
0/1
Evidence. No in-page WebMCP (N/A).
pass
NLWeb /ask
bonus
1/1
Evidence. NLWeb or /ask signal.
pass
Agent mode view
bonus
1/1
Evidence. mode=agent responded.
Probed public URLs named in the evidence.
n/a
NodeInfo
bonus
0/1
Evidence. No nodeinfo (N/A).
n/a
oEmbed discovery
bonus
0/1
Evidence. No oEmbed (N/A unless embeddable).
n/a
Markdown alternate link
bonus
0/1
Evidence. No rel=alternate type=text/markdown.
failed
Markdown frontmatter metadata
bonus
0/1
Evidence. Served markdown has no YAML frontmatter block.
Recommended fix. Open served markdown with a --- frontmatter block carrying title plus description, canonical, or last-updated.
pass
Markdown content negotiation (acceptmarkdown.com)
bonus
1/1
Evidence. Vary includes Accept (Accept, accept-encoding).
pass
Agent-UA markdown docs
bonus
1/1
Evidence. GPTBot Accept: text/markdown returned text/markdown; charset=utf-8.
pass
Accessible document structure
bonus
3/3
Evidence. Homepage HTML has main, nav, H1, and a sane heading order.
Probed homepage.
pass
Code fence validity
bonus
1/1
Evidence. No fenced blocks to unbalance.
pass
llms.txt links resolve
Recommended
2/2
Evidence. 8/8 sampled llms.txt links resolve to real documents.
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Public technical signals observed by Waymark. A score describes this snapshot; it does not guarantee that an agent will complete a task. Private and authenticated workflows are outside this scan.
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