Stack Lookup
Claude connectorCommunityWhich companies run which technologies, and since when. Company-resolved technographics over 53 million companies, with verified dates and…
- Tools
- 8
exposed by this connector
Movement
Over the last 30 days of daily snapshots.
Rank by popularity
Rank by trending score
Popularity score
Not enough data points to chart.
Trending score
In its categories
Where this connector sits among the connectors filed beside it. Each row keeps its standing in the whole directory.
Productivityno trending score standing · no popularity standing
This connector holds no trending score standing, so the category’s leaders are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 3 | 17,021,443 | — | ||
| 8 | 3,742,789 | — | ||
| 9 |  Maryland Community Compass | 2,286,788 | 3places down | |
| 11 |  Addepar MCP | 1,777,331 | 1,227places up | |
| 12 |  Yamdu | 1,530,000 | 1,353places up | |
| 13 | 1,424,168 | 3places down | ||
| 16 |  Huxly | 1,111,818 | 4places down |
This connector holds no popularity standing, so the category’s leaders are shown instead.
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 1 | 24,620 | 0 | ||
| 3 | 23,873 | 0 | ||
| 5 | 22,183 | 0 | ||
| 6 |  Notion | 22,083 | 0 | |
| 8 | 21,752 | 0 | ||
| 9 | 21,661 | 0 | ||
| 11 | 20,607 | 0 |
Data analyticsno trending score standing · no popularity standing
This connector holds no trending score standing, so the category’s leaders are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 3 | 17,021,443 | — | ||
| 5 | 8,485,673 | — | ||
| 9 | Maryland Community Compass | 2,286,788 | 3places down | |
| 11 | Addepar MCP | 1,777,331 | 1,227places up | |
| 15 |  Savri | 1,208,077 | 29places up | |
| 17 |  ThoughtLeaders - YouTube Data | 1,032,609 | 2places up | |
| 19 | 698,282 | — |
This connector holds no popularity standing, so the category’s leaders are shown instead.
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 27 | 18,977 | 0 | ||
| 29 |  Salesforce - Beta | 18,853 | 0 | |
| 35 | 18,511 | 1places down | ||
| 43 | 18,202 | 1places down | ||
| 47 | 18,077 | 0 | ||
| 48 | 18,061 | 1places up | ||
| 52 |  Intuit QuickBooks | 17,985 | 0 |
Sales and marketingno trending score standing · no popularity standing
This connector holds no trending score standing, so the category’s leaders are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 5 | 8,485,673 | — | ||
| 7 |  Helena by Enrich Labs | 5,145,035 | 2places down | |
| 17 | ThoughtLeaders - YouTube Data | 1,032,609 | 2places up | |
| 19 | 698,282 | — | ||
| 23 | 561,971 | — | ||
| 24 | 513,100 | — | ||
| 26 | 438,065 | 83places up |
This connector holds no popularity standing, so the category’s leaders are shown instead.
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 10 | 20,786 | 0 | ||
| 13 | 20,446 | 0 | ||
| 17 | 19,657 | 0 | ||
| 22 | 19,493 | 1places down | ||
| 26 |  Shopify | 19,050 | 0 | |
| 27 | 18,977 | 0 | ||
| 29 | Salesforce - Beta | 18,853 | 0 |
Stack Lookup answers which companies run which technologies, since when, and what changed.
Most technology lookups stop at a domain. Stack Lookup resolves the domain to the company behind it and serves that company's whole stack across every host it owns, so a question about a business gets an answer about the business rather than about one web server.
The index covers 53,578,213 companies and 8,177 technologies, verified continuously since 2020. Every technology carries a first and last verified date, the hosts it was seen on and a verification count, so an assistant can say when something was observed instead of asserting it as a timeless fact. Counts are exact over the whole index: no sampling, no extrapolation.
Eight read-only tools: look up a domain or a company; count and list companies matching a technology and firmographic filter (technologies all/any/none, HQ country, NAICS, ISIC, NACE, UK SIC, Veridion business category, employee band); profile a technology and its adoption by country, industry and company size; find companies first verified on a technology since a date; compare up to ten stacks side by side; and check your own credit balance.
Four prompts cover the common jobs: researching a company's stack, building a target list, detecting replatforming, and sizing a technology's market share.
Free keys include 5,000 credits a month. Counting, technology profiles and usage checks cost nothing, so a list can be sized before any of it is paid for.
Data by Veridion.
Tools
- account_usage
- compare_stacks
- count_companies
- find_companies
- lookup_company
- lookup_domain
- technology_changes
- technology_profile
- Made by
- Stack Lookup · Website
- Sign-in
- Required
- Connector URL
- https://stacklookup.ai/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- September 20, 2026
- More info