Black Swan Causal Labs MCP server

Which servers in the official MCP registry are Black Swan Causal Labs's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-19

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Whose server it is

Registry namecom.blackswancausallabs/dagstudio-mcpverified in the MCP registry

The registry name sits under blackswancausallabs.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-19

Staterequires sign-inchecked 2026-10-19

On 2026-10-19 the server answered and asked for a sign-in with a Black Swan Causal Labs account (OAuth). It shows its tool list only to signed-in users, so we list none here.

Measured dailydaily checks: 1, the first on 2026-10-19

Answeredmeasuring1 of the 7 daily checks it takes to print a share
Median first answer290 ms
Sign-ina key you paste

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The state of vendors' MCP servers: method and numbers →

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "dagstudio-mcp": {
      "type": "http",
      "url": "https://dagstudio-mcp.blackswancausallabs.com/mcp"
    }
  }
}

The first time it connects, the client opens a Black Swan Causal Labs sign-in.

Other servers listed as Black Swan Causal Labs's

com.blackswancausallabs/nhanes-mcpnot asked yetverified in the MCP registry
com.blackswancausallabs/openfda-mcpnot asked yetverified in the MCP registry
com.blackswancausallabs/robins-i-mcpnot asked yetverified in the MCP registry
com.blackswancausallabs/target-mcpnot asked yetverified in the MCP registry
io.github.Black-Swan-Causal-Labs/dag-studio-webmcpnot asked yetpublished by Black-Swan-Causal-Labs on GitHub
io.github.Black-Swan-Causal-Labs/sdds-webmcpnot asked yetpublished by Black-Swan-Causal-Labs on GitHub

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.