What we tested
Probed live on 26 Sep 2026 against rubric v1.2. 3 of 5 checks passed. 2 unknown.
PROBE-VERIFIEDtier 2 of 3
What its MCP server offers
We connected, ran tools/list, and recorded what came back on 26 Sep 2026. 45 tools.
agentseo_searchagentseo_extractagentseo_analyze_serpagentseo_local_auditagentseo_content_gapagentseo_opportunities_findagentseo_opportunities_briefagentseo_content_refresh_briefagentseo_content_serp_outlineagentseo_content_briefagentseo_content_draft_qaagentseo_content_schema_planagentseo_content_internal_linksagentseo_content_title_metaagentseo_content_keyword_mapagentseo_content_technical_qaagentseo_content_action_planagentseo_site_sitemap_auditagentseo_serp_volatilityagentseo_page_cro_qaagentseo_ai_visibility_prompt_setagentseo_content_programmatic_templateagentseo_content_cannibalizationagentseo_content_competitor_gap_matrixagentseo_keyword_ideas_suggestagentseo_keyword_metrics_overviewagentseo_domain_ranked_keywordsagentseo_domain_relevant_pagesagentseo_domain_competitorsagentseo_domain_intersectionagentseo_domain_traffic_estimateagentseo_backlinks_summaryagentseo_backlinks_listagentseo_backlinks_anchorsagentseo_backlinks_referring_domainsagentseo_backlinks_domain_pagesagentseo_backlinks_competitorsagentseo_backlinks_new_lost_timeseriesagentseo_backlinks_page_intersectionagentseo_backlinks_opportunity_finderagentseo_page_intersectionagentseo_ai_overview_extractagentseo_local_visibility_trackagentseo_rank_trackagentseo_job_status
Context
105 sites in the index share the category search and data APIs. 20 transactional sites share it.
How we grade
Three tiers. Every listing shows which one it has reached, and when. The rubric.
tier 1Declared
The site says agents are welcome in its robots.txt. A permission, not a capability.
tier 2Probe-verified
We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
tier 3Behaviourally verified
An agent completed the action end to end — booked, bought, submitted — and it worked.
Own this site?
Behavioural verification — an agent completing your key actions end to end, with the date published here — opens to a small founding cohort first. Leave an email to be in it.
Related verified sites
Known GoodSearch index of 14,351 websites across 62 countries with agent-facing capabilities probed live and dated, verifying agent readiness rather than claims, providing capability search and site verification via MCP endpoints.
search and data APIs AlgoliaDocumentation and tools for building search, discovery, and AI experiences with Algolia, including guides, API references, libraries, UI components, and integrations.
search and data APIs nohumans.directoryMachine-readable registry of paid x402 APIs and datasets with automated and on-chain payment verification, continuous probe verification, and reputation scoring. Agents query it before spending money; humans rarely use it directly.
search and data APIs Cludo API DocumentationAPI documentation for Cludo search platform covering search, autocomplete, AI answers, crawlers, indexing, and analytics across v3 and v4 endpoints.
search and data APIs Cludo API DocumentationDocumentation for Cludo API covering search, autocomplete, AI answers, crawlers, indexing, and analytics across v3 and v4 endpoints.
search and data APIs Doofinder API ReferenceDocumentation for Doofinder APIs to build search experiences, manage product catalogs, and access analytics for ecommerce platforms.
search and data APIs KeyAPI DocumentationAPI documentation for KeyAPI, a social data API integrating TikTok, Instagram, YouTube, Twitter/X, LinkedIn, Reddit, Facebook, Amazon, and more, providing creator data, content performance analysis, influencer search, e-commerce trend tracking, and real-time social data access.
search and data APIs Messari DocsDocumentation site for Messari's APIs providing crypto market data, on-chain metrics, AI intelligence, news aggregation, fundraising data, token unlock tracking, and real-time event monitoring for developers and analysts.
search and data APIs Record generated from a live database query. Method: about the index.
How we found this site: probe discovery. This site didn’t declare agent access — we found it by checking the open web. Everything above was tested the same way, against the same rubric, on the date shown. How we choose what to check, and how to opt out →