Who it is for
Business analysts and operators inside an organization standardized on Sigma.
Overview
What Sigma does
Sigma Computing puts a spreadsheet-style analysis layer over a cloud data warehouse. The connector searches an organization for relevant documents and elements, then answers and iterates on questions against them, so a line of analysis can be followed without hand-written SQL at each turn. It carries partner tier and publishes documentation, but no endpoint URL appears on the listing, which means setup follows whatever path Sigma documents rather than an address that can be pasted into a client. A Sigma deployment and an account inside it are both required.
Tool surface
No endpoint URL is published, so there was nothing to call, and the five tools remain a claim on the listing page.
Availability
Where Sigma is listed
Sigma is listed in the Claude connectors directory only. Sigma Computing has no app under the same domain in the ChatGPT directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
The MCP server behind a Claude connector is usually the same server a ChatGPT app would need, so the absence is a distribution decision rather than a technical one.
Claude listing
In the Claude connectors directory
Sigma publishes 5 tools to Claude, a deliberately narrow surface; only 22.3% of the 1,253 Claude-listed connectors expose fewer.
The median Claude-listed connector filed under Data & Analytics publishes 12, so this one sits 7 tools below its bucket's median, 151st of 198.
It falls in the 4-6 tools band, which holds 16.2% of the Claude directory.
Sigma's Claude listing does not publish an endpoint URL. 48 of the 1,253 Claude listings are in the same position: real listings with documentation but no URL in the directory record, so the endpoint has to come from the publisher's own docs.
Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there.
- Publisher
- Sigma Computing
- Verification
- Verified partner (37.8% of the Claude directory)
- Filed under
- Data & Analytics
- Endpoint
- Not published in the listing
- Documentation
- Publisher setup docs
- Published tools
- 5 · 4-6 tools band
- Depth rank in Data & Analytics
- 151 of 198
- Snapshot
- August 2026
Sigma carries partner verification in the Claude directory, which 474 of 1,253 listings do (37.8%). That is a review step past self-publishing, not an Anthropic-built server.
In the publisher's words
How Sigma Computing describes it
Explore, search, and query your data in Sigma directly from the Claude interface. You can search across your organization for relevant documents and elements, and answer and iterate on complex data questions. Perform detailed analysis without needing to write SQL and use natural language to seamlessly uncover insights, so you can act faster on your data.
Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it.
Nearby
Other Data & Analytics connectors
ClickHouse
Read-only SQL against ClickHouse Cloud services and schemas
Claude
dbt
Browse, query and run dbt projects and the semantic layer
Claude
Honeycomb
Query and manage Honeycomb observability data
Claude · ChatGPT
Metabase
Table search, field exploration and query building in Metabase
Claude
Microsoft Dataverse
Query and modify Dataverse tables behind Power Platform apps
Claude
MuleSoft
Inventory and governance across APIs, agents, MCP servers and models
Claude
This is an independent catalogue entry compiled by Node8 from Sigma's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Sigma Computing, and inclusion here is not an endorsement.
Want your company reachable inside ChatGPT and Claude?
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.