io.github.HumanLineage/wt

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Human Lineage MCP server — search and query the public genealogical graph of all humanity

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "wt": {
      "url": "https://humanlineage.org/api/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (6)

• search_person

  Search the Human Lineage genealogical graph for a person by name. Returns matches with their profile URL.

  Parameters:

  • query (required) — string — Name (or part of a name) to search for
  • limit — integer — Max results (default 10, max 20)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_person

  Get full details for a person by their Human Lineage ID, including a link to their profile.

  Parameters:

  • id (required) — string — Person ID, e.g. as returned by search_person

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_relatives

  Get the immediate family (parents, children, spouses) of a person as TEXT, with profile URLs. Use get_family_image instead if the user wants to see a picture/visual/graphic of the family tree.

  Parameters:

  • id (required) — string — Person ID to look up relatives for

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_family_image

  Returns a markdown image () of a visual family-tree card showing a person's parents, spouse and children. Use this — not get_relatives — whenever the user asks to see, show, view, or display a family tree, family diagram, or picture of the family. IMPORTANT: include the returned markdown image line verbatim in your reply so it renders for the user.

  Parameters:

  • id (required) — string — Person ID to render a family card for

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• search_place

  Search the Human Lineage genealogical graph for a place by name. Returns matches with their place URL.

  Parameters:

  • query (required) — string — Place name (or part of it) to search for

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_place

  Get details for a place by its Human Lineage ID, including its hierarchy and recorded person count.

  Parameters:

  • id (required) — string — Place ID, e.g. as returned by search_place

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

Repository

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.