emem, the verifiable memory protocol for the physical world

Resolve place to cell64 + band inventory

emem_locate

Read-onlyIdempotent

Get the canonical address (cell64) of a real-world place. Every agent resolves a place to the same cell64, so two models refer to the same ground. The answer also lists, by topic, the bands and algorithms that you can recall there. For an OBJECT identity (a bridge, a plot) instead of a cell, use emem_entity. Send lat+lng as numbers, or a free-text place. When both arrive, the coordinates win. q, query and name are other names for place. The answer lists keys that this schema does not declare in _unrecognised_arguments, so a typo is visible.

When to use: Call this when the next step needs the cell64 of a named place, or the bands that exist there. data_at_this_cell lists every band you can recall, by topic (live_bands_by_topic), the recipes that use them (algorithms_for_topic), and the bands with no materializer here. For one packaged answer in one call, use emem_ask.

Example arguments: {"place":"Mount Everest"}

Input Schema

TableJSON Schema

Name	Required	Description
`q`	No	Alias for `place`, accepted because OSM/Mapbox/Google Geocoding all use `q`. Provide either this or `place` (or `lat`+`lng`).
`lat`	No	WGS-84 latitude in degrees, paired with `lng`. REQUIRED with `lng` unless `place`/`q` is provided.
`lng`	No	WGS-84 longitude in degrees, paired with `lat`. REQUIRED with `lat` unless `place`/`q` is provided.
`name`	No	Alias for `place`.
`place`	No	Free-text place name (e.g. 'Mount Everest', 'Tokyo'). REQUIRED unless `lat`+`lng` is provided. Aliases also accepted: `q`, `query`, `name`.
`query`	No	Alias for `place`.

Output Schema

TableJSON Schema

Name	Required	Description
`next`	Yes
`cell64`	No	Pass as `cell` to emem_recall.
`status`	No	needs_location: no place named.
`selected`	No
`place_label`	No
`data_at_this_cell`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedSep 30, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "anyOf": [
+    {
+      "required": [
+        "cell64"
+      ]
+    },
+    {
+      "required": [
+        "status"
+      ]
+    }
+  ],
+  "properties": {
+    "cell64": {
+      "description": "Pass as `cell` to emem_recall.",
+      "type": "string"
+    },
+    "data_at_this_cell": {
+      "type": "object"
+    },
+    "next": {
+      "type": "array"
+    },
+    "place_label": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "selected": {
+      "properties": {
+        "confidence_reason": {
+          "type": "string"
+        },
+        "is_high_confidence": {
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "status": {
+      "description": "needs_location: no place named.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "next"
+  ],
+  "type": "object"
+}

Changed2 schema fields changedAug 12, 2026

addedInput schema / properties / name

Added value: +{
+  "description": "Alias for `place`.",
+  "type": "string"
+}

addedInput schema / properties / query

Added value: +{
+  "description": "Alias for `place`.",
+  "type": "string"
+}

Changed1 schema field changedJul 28, 2026

changedInput schema / properties / q / description

Previous value: -"Alias for `place` — accepted because OSM/Mapbox/Google Geocoding all use `q`. Provide either this or `place` (or `lat`+`lng`)."New value: +"Alias for `place`, accepted because OSM/Mapbox/Google Geocoding all use `q`. Provide either this or `place` (or `lat`+`lng`)."

Changed6 schema fields changedApr 30, 2026

removedInput schema / anyOf

Removed value: -[
-  {
-    "required": [
-      "place"
-    ]
-  },
-  {
-    "required": [
-      "q"
-    ]
-  },
-  {
-    "required": [
-      "lat",
-      "lng"
-    ]
-  }
-]

removedInput schema / description

Removed value: -"Resolve a place to a cell64. Provide either `place`/`q` (free text) or both `lat`+`lng`."

changedInput schema / properties / lat / description

Previous value: -"WGS-84 latitude in degrees, paired with `lng`."New value: +"WGS-84 latitude in degrees, paired with `lng`. REQUIRED with `lng` unless `place`/`q` is provided."

changedInput schema / properties / lng / description

Previous value: -"WGS-84 longitude in degrees, paired with `lat`."New value: +"WGS-84 longitude in degrees, paired with `lat`. REQUIRED with `lat` unless `place`/`q` is provided."

changedInput schema / properties / place / description

Previous value: -"Free-text place name (e.g. 'Mount Everest', 'Tokyo'). Aliases: `q`, `query`, `name`."New value: +"Free-text place name (e.g. 'Mount Everest', 'Tokyo'). REQUIRED unless `lat`+`lng` is provided. Aliases also accepted: `q`, `query`, `name`."

changedInput schema / properties / q / description

Previous value: -"Alias for `place` — accepted because OSM/Mapbox/Google Geocoding all use `q`. Resolves the same way."New value: +"Alias for `place` — accepted because OSM/Mapbox/Google Geocoding all use `q`. Provide either this or `place` (or `lat`+`lng`)."

Changed6 schema fields changedApr 30, 2026

addedInput schema / anyOf

Added value: +[
+  {
+    "required": [
+      "place"
+    ]
+  },
+  {
+    "required": [
+      "q"
+    ]
+  },
+  {
+    "required": [
+      "lat",
+      "lng"
+    ]
+  }
+]

addedInput schema / description

Added value: +"Resolve a place to a cell64. Provide either `place`/`q` (free text) or both `lat`+`lng`."

changedInput schema / properties / lat / description

Previous value: -"WGS-84 latitude in degrees, paired with `lng`"New value: +"WGS-84 latitude in degrees, paired with `lng`."

changedInput schema / properties / lng / description

Previous value: -"WGS-84 longitude in degrees, paired with `lat`"New value: +"WGS-84 longitude in degrees, paired with `lat`."

changedInput schema / properties / place / description

Previous value: -"Free-text place name (e.g. 'Mount Everest', 'Tokyo')"New value: +"Free-text place name (e.g. 'Mount Everest', 'Tokyo'). Aliases: `q`, `query`, `name`."

addedInput schema / properties / q

Added value: +{
+  "description": "Alias for `place` — accepted because OSM/Mapbox/Google Geocoding all use `q`. Resolves the same way.",
+  "type": "string"
+}

First observedApr 28, 2026

TDQS

Score is being calculated.

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