usedby
Server Details
Which companies publicly use which AI and software tools, each line with its public source.
- Status
- Healthy
- Last Tested
- Transport
- Streamable HTTP · MCP 2025-11-25
- URL
TDQS
Score is being calculated.
Available Tools
5 toolscompany_stackCompany stackRead-onlyIdempotentInspect
Tools a company publicly uses according to usedby, strongest proof first, each with its proof level (job-post signals last) and source page.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Rows to list (default 25, max 100). The usedby page has the full list. | |
| company | Yes | Company slug, name or website, e.g. 'stripe', 'Klarna', 'notion.so'. |
Output Schema
| Name | Required | Description |
|---|---|---|
| error | No | Set only when the input matched nothing or was invalid. |
| notes | No | How to read this answer. |
| tools | No | |
| source | Yes | The usedby page to cite: quote with a link to source.url. |
| company | No | The company, with its usedby page. |
| message | No | What went wrong, with the next step, when error is set. |
| signals | No | Job-post lines, the weakest proof. |
| latestCheck | No | Latest verification or capture of a public line. |
| suggestions | No | Close matches to ask again with, when error is not_found. |
compareCompare two toolsRead-onlyIdempotentInspect
Two tools side by side: public customers with their proof mix, top industries, companies confirmed or observed on both, and vendor facts with their sources.
| Name | Required | Description | Default |
|---|---|---|---|
| a | Yes | First tool slug or name. | |
| b | Yes | Second tool slug or name. | |
| limit | No | Rows to list (default 25, max 100). The usedby page has the full list. |
Output Schema
| Name | Required | Description |
|---|---|---|
| a | No | First tool. |
| b | No | Second tool. |
| error | No | Set only when the input matched nothing or was invalid. |
| notes | No | How to read this answer. |
| source | Yes | The usedby page to cite: quote with a link to source.url. |
| message | No | What went wrong, with the next step, when error is set. |
| overlap | No | |
| latestCheck | No | Latest verification or capture of a public line. |
| suggestions | No | Close matches to ask again with, when error is not_found. |
recent_changesRecent changesRead-onlyIdempotentInspect
Companies newly listed as customers by tool vendors in the last N days, optionally for one tool. Departures are not published.
| Name | Required | Description | Default |
|---|---|---|---|
| days | No | Window in days (default 30, max 365). | |
| tool | No | Only this tool (slug or name). | |
| limit | No | Rows to list (default 25, max 100). The usedby page has the full list. |
Output Schema
| Name | Required | Description |
|---|---|---|
| tool | No | |
| error | No | Set only when the input matched nothing or was invalid. |
| notes | No | How to read this answer. |
| counts | No | |
| listed | No | Companies newly listed as customers, newest first. |
| source | Yes | The usedby page to cite: quote with a link to source.url. |
| window | No | The period covered. |
| message | No | What went wrong, with the next step, when error is set. |
| tracking | No | How many tools are watched for changes. |
| truncated | No | |
| suggestions | No | Close matches to ask again with, when error is not_found. |
search_toolsSearch toolsRead-onlyIdempotentInspect
Find AI and software tools tracked on usedby by name or category, with how many companies publicly use each.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Rows to list (default 25, max 100). The usedby page has the full list. | |
| query | Yes | Tool name or category, e.g. 'cursor', 'coding', 'customer support'. |
Output Schema
| Name | Required | Description |
|---|---|---|
| error | No | Set only when the input matched nothing or was invalid. |
| notes | No | How to read this answer. |
| query | No | The text searched. |
| tools | No | Matching tools, with their public customer counts. |
| source | Yes | The usedby page to cite: quote with a link to source.url. |
| message | No | What went wrong, with the next step, when error is set. |
| truncated | No | More matches exist than listed. |
| suggestions | No | Close matches to ask again with, when error is not_found. |
who_usesWho uses a toolRead-onlyIdempotentInspect
Companies that publicly use a tool, strongest proof first, each with its proof level (CONFIRMED, OBSERVED, or SIGNAL: a job post, the weakest proof), source page and first public proof date.
| Name | Required | Description | Default |
|---|---|---|---|
| tool | Yes | Tool slug or name, e.g. 'cursor', 'GitHub Copilot', 'harvey'. | |
| limit | No | Rows to list (default 25, max 100). The usedby page has the full list. |
Output Schema
| Name | Required | Description |
|---|---|---|
| tool | No | The tool, with its usedby page. |
| error | No | Set only when the input matched nothing or was invalid. |
| notes | No | How to read this answer. |
| source | Yes | The usedby page to cite: quote with a link to source.url. |
| message | No | What went wrong, with the next step, when error is set. |
| signals | No | Job-post lines, the weakest proof. |
| customers | No | |
| latestCheck | No | Latest verification or capture of a public line. |
| suggestions | No | Close matches to ask again with, when error is not_found. |
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
5 tool updates
- First observed
company_stack - First observed
compare - First observed
recent_changes - First observed
search_tools - First observed
who_uses
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