Agent MCP Directory

Sentry: the 360 agent-readiness check

Sentry scores 80 of 100 on Ora's agent-readiness scan, a B, read 9 November 2026. Of the five surfaces an agent acts on, Ora found 3: a public API, OAuth, a command line. WebMCP registered and two agent files that do not validate.

On 9 November 2026 the public site at sentry.io scored 80 of 100 on Ora's agent-readiness scan, a B, in Ora's Infrastructure category. Ora probes a site the way an agent would: it requests pages with the agents' own user agents, reads robots.txt, looks for the files agents read, and tries the API, MCP and payment surfaces. This check reads the act layer first, because that is what the directory records, then the door, what an agent can read, and whether the company is found and recommended. Ora's one-line summary: Sentry offers strong discovery and developer SDK coverage, but lacks a published OpenAPI specification for agents to integrate against.

The score

Sentry on Ora, read 2026-11-09: points per layer, with the share of each layer's maximum. 45 checks pass, 26 are partial, 27 fail and 34 do not apply to this site.
LayerAsksPointsShare
UsabilityCan agents use it59.5 of 7876%
AccessCan agents read it48 of 6277%
DiscoveryCan agents find and recommend it13 of 1493%
PaymentsCan agents pay0 of 0none apply
TotalGrade B80 of 10080%

What an agent can do

The surfaces an agent acts on: an API it can find and call, an MCP server, an agent card, OAuth metadata, a command line. This is the layer the directory records, so it comes first.

In the directory, Sentry sign-in required, tools not seen, not counted; the connector run of 4 November 2026 is on the entry page. Ora's MCP server check for the same domain reads partial; the two look for different things, the directory for a server that answers a handshake and lists tools, Ora for a server it can find from the site.

What an agent can do: 19 checks Ora ran on sentry.io, read 2026-11-09. The last column is Ora's own observation where it published one.
CheckResultPointsWhat Ora saw
MCP server / manifest mcp-serverPartial5 of 6MCP server detected at https://mcp.sentry.dev/mcp; it requires authentication. Presence is verified (5/6), but Ora could not inspect its tools or verify access scopes without credentials.
MCP well-known discovery mcp-well-known-discoveryPass2 of 2MCP server discoverable at standard path https://sentry.io/.well-known/mcp.json
Public API with reachable endpoints public-apiPass7 of 7REST API documentation found at https://docs.sentry.io/organization/data-storage-location.md. GraphQL endpoint at https://graphql.sentry.io/ is reachable; introspection requires authentication (API key / OAuth),
Public API/docs linked from homepage public-api-docsPass3 of 3Documentation site found at https://docs.sentry.io
Developer portal developer-portalPass6 of 6Developer portal found at https://docs.sentry.io
OpenAPI spec published openapi-specFail0 of 7No OpenAPI/Swagger specification found
API catalog (RFC 9727) api-catalog-rfc9727Pass2 of 2no detail published
A2A / agent-card a2a-agent-cardFail0 of 2No A2A agent card found at /.well-known/agent-card.json
Agent discovery file agent-discovery-filePartial1 of 2Found legacy /.well-known/agent-skills; /.well-known/agent-skills/index.json has an empty 'skills' array - add at least one skill entry
OAuth 2.0 support oauth-supportPass5 of 5OAuth authorization server metadata at https://sentry.io (issuer=https://sentry.io)
OAuth Protected Resource metadata (RFC 9728) oauth-protected-resourcePass2 of 2no detail published
auth.md exists auth-md-existsFail0 of 2No /auth.md found at site root
WebMCP support webmcpPass5 of 5Imperative WebMCP API detected (document.modelContext.registerTool in script bundle /_astro/webmcp.m80_-iWU.js).
NLWeb /ask endpoint nlweb-askFail0 of 1No NLWeb-conformant /ask endpoint found via GET or POST
CLI tool available cli-toolPass3 of 3CLI package found on npm: @sentry/cli
Multi-language SDK packages rest-sdk-packagesPass3 of 3SDK packages found across 4 ecosystems: npm, pypi, go, rubygems
Rate limit response headers rate-limit-headersFail0 of 2GraphQL introspection auth-gated and no header convention documented on GraphQL-tagged pages
Idempotency-Key support idempotency-key-supportPartial1 of 3GraphQL idempotency described in documentation at https://docs.sentry.io/api.md; not confirmed in the schema
JSON error responses json-error-responsesFail0 of 4API does not return JSON error responses (or no API detected)

At the door

What the site answers when a request arrives with an agent's user agent, and what robots.txt says to agents.

At the door: 8 checks Ora ran on sentry.io, read 2026-11-09. The last column is Ora's own observation where it published one.
CheckResultPointsWhat Ora saw
Not blocked by bot detection bot-detectionPass2 of 2Site accessible to 4 agent user-agents (ChatGPT-User, OAI-SearchBot, Claude-User, PerplexityBot).
Agent crawler reachability agent-crawler-reachabilityPass2 of 2Reachable to every agent we tested - ChatGPT-User: reachable, OAI-SearchBot: reachable, Claude-User: reachable, PerplexityBot: reachable
robots.txt AI crawler policy robots-ai-policy-qualityPass2 of 2AI search crawlers: allowed in 18 of 18 checks (3 crawlers on 6 pages). AI training crawlers: allowed in 12 of 12 checks (2 crawlers on 6 pages), not scored.
robots.txt agent-user policy robots-agent-user-policyPass2 of 2No applicable crawl or usage restriction found for 3 user-triggered agents (chatgpt-user, claude-user, perplexity-user) on 1 public page: https://sentry.io/. Declared policy only;
Content behind auth docs-auth-gatePass2 of 2All 5 sampled pages are publicly readable (5 with substantive content)
Homepage not hidden from search noindex-directivesPass1 of 1No noindex on the homepage: no robots, googlebot or bingbot meta tag and no X-Robots-Tag header hides it from search.
Redirect hygiene redirect-hygienePass1 of 1no detail published
Web Bot Auth directory web-bot-auth-directoryFail0 of 2No /.well-known/http-message-signatures-directory found

What an agent can read

Whether the text is in the first response, what the site publishes for agents, and how it describes itself to them.

What an agent can read: 17 checks Ora ran on sentry.io, read 2026-11-09. The last column is Ora's own observation where it published one.
CheckResultPointsWhat Ora saw
Content without JavaScript content-no-jsPartial2 of 3Homepage: 15918 chars with H1, but 4.0% content ratio is below the 5% target. 5 of 5 sampled inner pages have text without JavaScript.
Page token budget page-token-budgetPass1 of 1All 6 measured pages fit an agent context budget (largest ~4K tokens)
Sitemap exists sitemapPass2 of 2Valid sitemap found at https://sentry.io/sitemap-index.xml with multiple sitemaps entries
Sitemap freshness (lastmod) sitemap-lastmodFail0 of 1None of the 500 sampled sitemap entries carries a lastmod date. Add <lastmod> (W3C datetime) so agents can prioritize fresh content.
llms.txt exists llms-txt-existsPass1 of 1Found the llms.txt at https://sentry.io/llms.txt.
llms.txt formatting llms-txt-formattingPartial1 of 2The llms.txt at https://sentry.io/llms.txt is well-formatted with markdown links, but at 93,154 characters it exceeds the 30,000-character recommendation for a navigation index.
llms.txt links resolve llms-txt-links-resolvePass2 of 2no detail published
Markdown agent docs markdown-negotiationPass1 of 1Returns markdown when requested via Accept header
Markdown URL fallback markdown-url-fallbackFail0 of 2Homepage does not support the .md suffix. Probed https://sentry.io/index.md and it did not return markdown (expected text/markdown content-type or a heading-led non-HTML body).
Bot-UA markdown serving agent-ua-markdownPass1 of 1https://sentry.io serves markdown to the ChatGPT-User User-Agent even with Accept: text/html - UA-sniffed agent responses in place
Agent mode view agent-mode-viewFail0 of 2?mode=agent returns same content as homepage (no dedicated agent view)
JSON-LD structured data json-ldPass4 of 4Rich JSON-LD identity: Organization with name, description, url, and sameAs/logo/address (2 block(s))
Organization schema completeness org-schema-completenessPartial1 of 2Organization schema found but missing: contactPoint
JSON-LD entity linking (sameAs) json-ld-entity-linkingPass2 of 2no detail published
Schema type breadth schema-type-breadthFail0 of 2No extended schema types found - AI can only answer basic questions about this entity
Metadata completeness metadata-completenessPass2 of 2All metadata signals present: canonical URL, lang="en", og:image, og:type
Agent instruction / when-to-use agent-instructionPartial2 of 3Agent instruction file at /agent.txt but no explicit when-to-use guidance

Found and recommended

Whether an assistant can find the company by name, confirm what it is, and see it in the registries agents read.

Found and recommended: 9 checks Ora ran on sentry.io, read 2026-11-09. The last column is Ora's own observation where it published one.
CheckResultPointsWhat Ora saw
Brand name discoverability brand-search-accuracyPass3 of 3sentry.io ranks #5 for "Sentry" (searched your brand name alone: no main product term from your homepage qualified)
Wikipedia / Wikidata entity presence wikipedia-presencePartial2 of 4Wikidata Q140835305 (Q140835305) verified - draft a Wikipedia page with cited references to complete knowledge graph coverage
Developer resource discoverability agentic-search-specificPass3 of 3no detail published
Listed in MCP registries mcp-registry-listedPass1 of 1no detail published
NPM/PyPI SDK package npm-sdk-packagePass1 of 1no detail published
ChatGPT app listed chatgpt-app-listedFail0 of 2Not found in ChatGPT app directory
Registry branding registry-brandingPartial1 of 2MCP manifest has name and description but no icon at /.well-known/mcp/server-card.json
Listed on skills.sh skills-sh-listedPass1 of 1no detail published
ARD discovery ard-catalogPartial0 of 1/.well-known/ard.json exists but is not valid JSON

Payments

The agent payment protocols Ora probes for. A site that sells nothing has nothing here, and Ora scores the layer out of zero when none applies.

Payments: 6 checks Ora ran on sentry.io, read 2026-11-09. The last column is Ora's own observation where it published one.
CheckResultPointsWhat Ora saw
UCP - Universal Commerce Protocol ucp-supportPartial0 of 3no UCP (Universal Commerce Protocol) signals detected
ACP - Agentic Commerce Protocol acp-supportPartial0 of 3no ACP (Agentic Commerce Protocol) signals detected
ACP delegate payment acp-delegate-paymentPartial0 of 3No ACP Delegate Payment signals detected
AP2 - Agent Payments Protocol ap2-supportPartial0 of 3No AP2 (Agent Payments Protocol) signals detected
x402 payment protocol x402-supportPartial0 of 2No x402 payment protocol support detected
MPP payment protocol mpp-supportPartial0 of 2No MPP (Machine Payments Protocol) support detected

The fixes worth most points

Ora attaches an estimate to each failing or partial check: how many points the site would gain by passing it. These are the 5 with the largest estimates for Sentry, with what Ora observed. The wording of each fix is Ora's; the 28 checks it runs on an MCP server are listed with their layer and tier.

  • OpenAPI spec published: fail, 0 of 7, about 3.8 points to gain. Ora saw: No OpenAPI/Swagger specification found
  • JSON error responses: fail, 0 of 4, about 2.3 points to gain. Ora saw: API does not return JSON error responses (or no API detected)
  • GraphQL typed error model: fail, 0 of 3, about 1.7 points to gain. Ora saw: GraphQL introspection auth-gated and no typed graphql error model documentation found on GraphQL-tagged pages
  • ARD discovery: partial, 0 of 1, about 1.6 points to gain. Ora saw: /.well-known/ard.json exists but is not valid JSON
  • GraphQL versioning / deprecation policy: fail, 0 of 2, about 1.1 points to gain. Ora saw: GraphQL introspection auth-gated and no graphql versioning / deprecation policy documentation found on GraphQL-tagged pages

Our read

Sentry has done the newer act-layer work and skipped the older: a WebMCP tool is registered in a script bundle, the MCP server at mcp.sentry.dev/mcp answers and requires authentication, it is discoverable at sentry.io/.well-known/mcp.json, OAuth authorization server metadata is on the main domain, @sentry/cli is on npm, SDKs are in four registries, and sentry.io serves an llms.txt and returns markdown on request. The missing piece is an OpenAPI specification, about 4 points, and two published files are broken: the ARD catalog at /.well-known/ard.json is not valid JSON, and the agent skills index has an empty skills array. Endpoints do not answer errors as JSON and the GraphQL introspection is gated. The home page is 15,918 characters at a 4 percent text ratio, just under the target, with two complete Organization blocks. An error-tracking company with two files that would fail its own checks is the sentence the editors could not resist.

Test your own surfaces

The scan above is free and needs no account: enter a domain at ora.ai and read the same four layers for your own site. For an MCP server, Ora scans the server URL itself and runs 28 of its 132 public checks on it, which is why it is the check this directory recommends; the reasons, the limits and the alternatives are on their own page. The command below runs the same audit from a terminal and exits with 1 under the score you set, so it can gate a deploy.

npx ax@0.10 audit https://example.com --min-score 70

All 360 checks, one company a day. Corrections to the corrections page.