What we tested
Probed live on 23 Aug 2026 against rubric v1. 3 of 5 checks passed.
PROBE-VERIFIEDtier 2 of 3
✓Markdown negotiationAccept: text/markdown
✓Markdown twin at a predictable URL/page.md
—llms.txt/llms.txt
✓API catalogRFC 9727
—MCP server answers/.well-known/mcp/server-card.json → tools/list
What an agent could do here
Read from the page’s own content, with the wording each was drawn from. Inference is kept separate from tested facts — an agent completing the action is tier 3.
UNVERIFIED
search“检索完整的 NVIDIA 开发者工具、SDK 和库”https://developer.nvidia.cn/developer-tools-catalog.md
register“免费会员资格，获取 SDK、抢先体验与社区资源”https://developer.nvidia.cn/developer-program
contact“开发者论坛”https://forums.developer.nvidia.cn/
Context
6 sites in the index share the category developer portal, of which 1 are transactional.
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?
2 checks did not pass when we last looked: llms.txt, MCP server answers. Each is a small, specific fix; the rubric says exactly what we look for.
Behavioural verification — an agent completing your booking, purchase or contact flow 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
Energy Hub AllianceThe Energy Hub Alliance Developer Portal provides documentation and API references for ene
developer portal MindBridge DocumentationMindBridge Developer Portal provides documentation and resources for building, integrating
developer portal OwnID DocumentationOwnID Developer Portal provides documentation for integrating biometric authentication wit
developer portal Kodexa Developer PortalThe Kodexa Developer Portal provides documentation, guides, SDKs, and API references for b
developer portal Nayax Developer PortalNayax Developer Portal provides documentation and resources for developers integrating wit
developer portal Ikigai CorporationIkigai Corporation supplies APIs, pharmaceutical intermediates, excipients, and specialty
pharmaceutical supplier 十分吸引十分吸引 offers searchable podcast episodes with full transcripts, summaries, chapters, and ke
podcast transcript library Record generated from a live database query. Method: about the index.