TopK
Technology Stack
Modern web stack
As of July 20, 2026, TopK's stack: The live site runs on Next.js, React, Tailwind CSS, and Vercel, which is a standard modern web stack and says nothing unusual about the underlying search infrastructure.
High confidence · 11 dated facts
Corroborated across multiple dated, sourced facts.
Corroborated across multiple dated, sourced facts.
Detected on the live site · observed
Next.jsReactTailwind CSSVercelPostHogYoutubeCloudflareAWSDatadogVWO
Infrastructure · observed
Vercel
Subdomain surface · 3 crawled
docs.topk.iocrawled · observed
Next.jsReactTailwind CSSVercelPostHogVercel · hosting
status.topk.iocrawled · observed
Next.jsReactTailwind CSSVercel
www.topk.iocrawled · observed
Next.jsReactTailwind CSSVercel
Every stack fact on this pagekey · value · provenance · dated · sourced
| Fact | Value | Provenance | As of | Source |
|---|---|---|---|---|
| stack.infra.hosting.vercel | Vercel | observed | 2026-07-02 | docs.topk.io |
| stack.tech.aws | AWS | observed | 2026-07-20 | trust.topk.io |
| stack.tech.cloudflare | Cloudflare | observed | 2026-07-20 | trust.topk.io |
| stack.tech.datadog | Datadog | observed | 2026-07-20 | trust.topk.io |
| stack.tech.nextjs | Next.js | observed | 2026-07-20 | www.topk.io |
| stack.tech.posthog | PostHog | observed | 2026-07-20 | docs.topk.io |
| stack.tech.react | React | observed | 2026-07-20 | www.topk.io |
| stack.tech.tailwindcss | Tailwind CSS | observed | 2026-07-20 | www.topk.io |
| stack.tech.vercel | Vercel | observed | 2026-07-20 | www.topk.io |
| stack.tech.vwo | VWO | observed | 2026-07-20 | www.linkedin.com/company/topkio |
| stack.tech.youtube | Youtube | observed | 2026-07-20 | docs.topk.io/architecture |
Stack across Vector DatabasesTopK ranked in place · tap through for each read
| Company | Stack read | Facts |
|---|---|---|
| Pinecone | Detected + stated stack | 33 |
| Vectara | Detected + stated stack | 27 |
| Epsilla | Detected + stated stack | 22 |
| Zilliz | Detected + stated stack | 21 |
| LanceDB | Modern web stack | 15 |
| TopK this record | Modern web stack | 11 |
| Activeloop | 9 detected | 9 |
| Qdrant | 8 detected | 8 |
| Marqo | Modern web stack | 7 |
| Turbopuffer | Detected + stated stack | 7 |
| Vespa | 7 detected | 7 |
| KDB.AI | 6 detected | 6 |
No observed stack facts yet for Chroma, Milvus, MyScale and Weaviate.
Get stack for topk.io via API / MCPevery field dated and sourced
RESTopen tier
GET https://api.bixel.com/v1/companies/topk.io/facts?dimension=stack
{
"data": {
"facts": [
{
"key": "stack.tech.nextjs",
"value": true,
"provenance": "observed",
"as_of": "2026-07-20",
"source_url": "www.topk.io"
},
{
"key": "stack.tech.react",
"value": true,
"provenance": "observed",
"as_of": "2026-07-20",
"source_url": "www.topk.io"
},
{
"key": "stack.tech.tailwindcss",
"value": true,
"provenance": "observed",
"as_of": "2026-07-20",
"source_url": "www.topk.io"
},
{
"key": "stack.tech.vercel",
"value": true,
"provenance": "observed",
"as_of": "2026-07-20",
"source_url": "www.topk.io"
},
"…"
]
}
}MCPfor agents
# any MCP client (Claude, agents)
const record = await bixel.get_company_facts({ domain: "topk.io", dimension: "stack" })
# returns the stack record above,
# each value with its source_url + as_of,
# ready to reason overBuild on the company record. One key, REST + MCP, every signal dated and sourced back to the page it came from.
Public record, read from companies' own pages and boards. Every fact dated and sourced; provenance (observed vs company stated) shown inline.