WebMCP Tool Playground

Recall publishes six WebMCP tools. This playground lets you call each one against an in-memory demo vault — the same response shape ChatGPT would receive, with the same audit-trail provenance.

WebMCP Tool Playgrounddemo mode

document.modelContext.registerTool()

query()

Retrieve relevant facts from the user's memory vault. Use when the user asks what you know about them, or when you need to check the user's stated preferences.

readOnlyHint: trueuntrustedContentHint: false

Call args (JSON)

Edit the JSON, then call the tool. The playground returns the same shape ChatGPT would receive.

as chatgpt.com → recall.app

inputSchemaJSON Schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Natural-language query, 1-200 chars"
    },
    "tags": {
      "type": "array",
      "description": "Optional tag filters",
      "items": {
        "type": "string"
      },
      "maxItems": 5
    },
    "limit": {
      "type": "integer",
      "description": "Max facts to return (default 10, max 50)",
      "default": 10
    }
  },
  "required": [
    "query"
  ],
  "additionalProperties": false
}

demo memory vault7 facts · 3 audit entries

Hobbies: rock climbing, bouldering, and trail running.
fact_01 · hobbies, sport · score 12
Vegetarian — no meat or fish; eggs and dairy are fine.
fact_02 · diet, preference · score 8
Prefers morning meetings (08:00–11:00 local time).
fact_03 · work, preference · score 6
Working on the WebMCP Challenge.
fact_04 · work, project · score 15
Lives in the Lagos timezone (WAT, UTC+1).
fact_05 · location, preference · score 9
Speaks English and Yoruba fluently; learning Arabic.
fact_06 · language · score 7
Uses a mechanical keyboard and prefers dark-mode UIs.
fact_07 · preference, tools · score 4