Connect any MCP client

claude mcp add --transport http phenomainon \
  https://mcp.phenomainon.com/mcp \
  --header "X-API-Key: YOUR_KEY"

Add to ~/Library/Application Support/Claude/claude_desktop_config.json(macOS) or the equivalent on Windows/Linux.

{
  "mcpServers": {
    "phenomainon": {
      "transport": {
        "type": "streamable-http",
        "url": "https://mcp.phenomainon.com/mcp",
        "headers": { "X-API-Key": "YOUR_KEY" }
      }
    }
  }
}

Add to your Cursor settings under MCP servers.

{
  "mcp": {
    "servers": {
      "phenomainon": {
        "url": "https://mcp.phenomainon.com/mcp",
        "headers": { "X-API-Key": "YOUR_KEY" }
      }
    }
  }
}

• search_cases(state?, country?, shape?, theme?, year_from?, year_to?, min_sources?, limit?)

  Structured filter search. Returns events matching ALL filters, sorted by source_count and date.

  {
    "name": "search_cases",
    "arguments": {
      "country": "US",
      "state": "NY",
      "shape": "triangle",
      "year_from": 1982,
      "year_to": 1986,
      "min_sources": 2,
      "limit": 25
    }
  }

• semantic_search(query, k?, state?, shape?, min_sources?)

  Embedding-space free-text search. Optional structured filters narrow the candidate set before ranking.

  {
    "name": "semantic_search",
    "arguments": {
      "query": "triangular silent low altitude over a freeway",
      "k": 20
    }
  }

• get_case(pcf)

  Full detail for one case: every field, sources, scoring. Use this after search to drill down.

  {
    "name": "get_case",
    "arguments": { "pcf": "PCF-103868" }
  }

• related(pcf)

  The most similar cases to a flagship case via the embedding index.

  {
    "name": "related",
    "arguments": { "pcf": "PCF-103868" }
  }

• stats(group_by, state?, shape?, theme?)

  Aggregate counts for charts. group_by: year | decade | state | country | shape | theme | source_count.

  {
    "name": "stats",
    "arguments": { "group_by": "decade" }
  }

• list_themes()

  All cataloged themes with counts and descriptions. Use the keys with the `theme` filter on other tools.

  { "name": "list_themes", "arguments": {} }

• dataset_overview()

  Quick health check: totals, date range, multi-source corroboration count.

  { "name": "dataset_overview", "arguments": {} }

Anonymous access is rate-limited to one tool call. For researcher access (vetted, free) email joe.schurman@gmail.com with a one-line note about what you're using it for, or sign in via the (forthcoming) account flow.