post_v1_kb_search

SearchKnowledge runs a semantic search over the caller org's own knowledge — its wiki pages, its agent memories and everything its connectors have synced — and returns the matching passages. This is the RAG entry point: an agent asks "what does this org know about X" and the org's OWN vector namespace answers. The org comes from the validated principal, and both the collection and the payload filter are pinned to it, so cross-tenant retrieval is impossible. An unreachable index returns an honest empty result set with degraded=true, never a 5xx.

Arguments

tools/list declares a type and a description for each field and nothing further. A — means neither the door nor that operation constrains the field.

Call it

A tools/call carries every argument in one flat object — nothing binds to a path or a query string. Nothing above is required, so every declared argument is shown rather than a guess at which matter.

curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "post_v1_kb_search",
         "arguments": {
           "doctypes": [
             "<doctypes>"
           ],
           "limit": 0,
           "project": "<project>",
           "query": "<query>"
         }
       }
     }'

Values are the operation's own defaults and enumerated values where it declares them, and a <placeholder> where neither source declares one. limit holds a stand-in that cannot be spelled that way — JSON gives a number, a boolean and a timestamp no placeholder form — so that value is this page's, not the API's. Neither the door nor the operation declares one. tools/list needs no credential; tools/call does — called without one the door answers HTTP 200 with a JSON-RPC result whose isError is set and whose text says what was missing. How to get a key →

The operation behind it

The same capability over plain HTTP is in the kb API reference, on https://api.hanzo.ai.

All 755 tools · The door · API reference

Generated from tools/list on https://api.hanzo.ai/v1/mcp — 833 tools captured 2026-08-01, of which 755 are documented here (the operator surface is not published) (this build read the vendored copy; the door was unreachable).