Steam MCP Server

Overview Schema Source Related Servers Discussions Admin

Get personalized game recommendations

get_recommended_games

Read-only

Recommends unowned Steam games by inferring taste from a player's most-played library tags, ranking matches by playtime and review score, with optional genre exclusions or discount minimums.

Instructions

Recommend unowned Steam catalog games personalized to this player: tags on their own most-played owned games become weighted preferences (more playtime on a tag = more weight), discounted by each candidate's review score so a tag match on a poorly-received game doesn't outrank a better one, then ranked against a broad catalog page, excluding anything already owned. based_on_tags shows which of the player's own top tags drove the ranking; each result carries matched_tags and match_score alongside the usual price/review/compat card. Set exclude_tags to steer away from a genre despite it matching by playtime, and/or min_discount for a minimum deal size (e.g. 'suggest games on sale, not RPGs or shooters' → exclude_tags:['RPG','Shooter','FPS'], min_discount:30). Different from discover_games (which needs YOU to name the filters) — this infers taste from the player's WHOLE library instead, for 'what should I play next' / 'recommend me something'. For 'something like THIS ONE game' (a single named title), get its tags via get_items and call discover_games with them instead. Recommends base games only — DLC, soundtracks and demos are never suggested, the same filter discover_games applies. Note: taste is weighted from only the player's 30 most-played owned games, and candidates come from a fixed 300-entry catalog scan, so a heavy exclude_tags/min_discount combination can return fewer than limit — there's no larger scan to fall back to. Requires STEAM_API_KEY and a public profile with game-details visible (same requirement as get_owned_games) — found:false is also returned for a SteamID64 with no account behind it, if the player owns no games at all, or if too few of their played games have resolvable tags to build a taste profile.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "get_recommended_games"
  }
}

Input Schema

Name	Required	Description
`limit`	No	How many recommendations to return (1-25). Default 10.
`steamid`	No	17-digit SteamID64. Omit to use the STEAM_ID configured on the server. Convert a vanity/custom URL name with resolve_vanity_url first.
`exclude_tags`	No	Drop any candidate carrying ANY of these tags (case-insensitive), e.g. ['Souls-like'] for 'recommend me something except Souls-like'. Use exact Steam tag names — a misspelled/unrecognized one isn't an error, it just drops nothing.
`min_discount`	No	Minimum discount %, e.g. 30 for '30%+ off'. Omit to include full-price games too. Filtered server-side and re-checked client-side, so it holds at any value including 100.

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv0.14.0Sep 27, 2026

changedOutput schema / oneOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "found": {
-        "const": false,
-        "type": "boolean"
-      },
-      "reason": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "found",
-      "reason"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "based_on_tags": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "count": {
-        "type": "number"
-      },
-      "found": {
-        "const": true,
-        "type": "boolean"
-      },
-      "recommendations": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "appid": {
-              "type": "number"
-            },
-            "discount_end": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "discount_pct": {
-              "type": "number"
-            },
-            "match_score": {
-              "description": "An internal ranking weight (playtime-on-matched-tags, discounted by review score) — not a percentage or 0-100 scale. Only meaningful relative to the other scores in this same response, to explain why one pick outranks another.",
-              "type": "number"
-            },
-            "matched_tags": {
-              "items": {
-                "type": "string"
-              },
-              "type": "array"
-            },
-            "name": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "original": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "platforms": {
-              "items": {
-                "type": "string"
-              },
-              "type": "array"
-            },
-            "price": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "release_date": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "review_count": {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "review_label": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "review_percent": {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "steam_deck": {
-              "enum": [
-                "unknown",
-                "unsupported",
-                "playable",
-                "verified"
-              ],
-              "type": "string"
-            },
-            "steam_frame": {
-              "enum": [
-                "unknown",
-                "unsupported",
-                "playable",
-                "verified"
-              ],
-              "type": "string"
-            },
-            "steam_machine": {
-              "enum": [
-                "unknown",
-                "unsupported",
-                "playable",
-                "verified"
-              ],
-              "type": "string"
-            },
-            "steam_os": {
-              "enum": [
-                "unknown",
-                "unsupported",
-                "playable",
-                "verified"
-              ],
-              "type": "string"
-            },
-            "store_url": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "tags": {
-              "items": {
-                "type": "string"
-              },
-              "type": "array"
-            },
-            "vr_support": {
-              "enum": [
-                "none",
-                "supported",
-                "required"
-              ],
-              "type": "string"
-            }
-          },
-          "required": [
-            "appid",
-            "name",
-            "store_url",
-            "review_percent",
-            "review_count",
-            "review_label",
-            "platforms",
-            "steam_deck",
-            "steam_os",
-            "steam_machine",
-            "steam_frame",
-            "vr_support",
-            "tags",
-            "release_date",
-            "discount_pct",
-            "discount_end",
-            "original",
-            "price",
-            "matched_tags",
-            "match_score"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      }
-    },
-    "required": [
-      "found",
-      "based_on_tags",
-      "count",
-      "recommendations"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "found": {
+        "const": false,
+        "type": "boolean"
+      },
+      "reason": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "found",
+      "reason"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "based_on_tags": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "count": {
+        "type": "number"
+      },
+      "found": {
+        "const": true,
+        "type": "boolean"
+      },
+      "recommendations": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "appid": {
+              "type": "number"
+            },
+            "discount_end": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "discount_pct": {
+              "type": "number"
+            },
+            "match_score": {
+              "description": "An internal ranking weight (playtime-on-matched-tags, discounted by review score) — not a percentage or 0-100 scale. Only meaningful relative to the other scores in this same response, to explain why one pick outranks another.",
+              "type": "number"
+            },
+            "matched_tags": {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "name": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "original": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "platforms": {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "price": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "release_date": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "review_count": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "review_label": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "review_percent": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "steam_deck": {
+              "enum": [
+                "unknown",
+                "unsupported",
+                "playable",
+                "verified"
+              ],
+              "type": "string"
+            },
+            "steam_frame": {
+              "enum": [
+                "unknown",
+                "unsupported",
+                "playable",
+                "verified"
+              ],
+              "type": "string"
+            },
+            "steam_machine": {
+              "enum": [
+                "unknown",
+                "unsupported",
+                "playable",
+                "verified"
+              ],
+              "type": "string"
+            },
+            "steam_os": {
+              "enum": [
+                "unknown",
+                "unsupported",
+                "playable",
+                "verified"
+              ],
+              "type": "string"
+            },
+            "store_url": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "tags": {
+              "description": "The game's most-weighted user tags, most-relevant first — a display sample capped well below the full set, not the complete list. Tag FILTERS (discover_games' and get_wishlist's `tags`) match against the game's COMPLETE tag list, so a filtered result can legitimately not show the tag you filtered on in this array. Absence here is not evidence the game lacks that tag.",
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "vr_support": {
+              "enum": [
+                "none",
+                "supported",
+                "required"
+              ],
+              "type": "string"
+            }
+          },
+          "required": [
+            "appid",
+            "name",
+            "store_url",
+            "review_percent",
+            "review_count",
+            "review_label",
+            "platforms",
+            "steam_deck",
+            "steam_os",
+            "steam_machine",
+            "steam_frame",
+            "vr_support",
+            "tags",
+            "release_date",
+            "discount_pct",
+            "discount_end",
+            "original",
+            "price",
+            "matched_tags",
+            "match_score"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      }
+    },
+    "required": [
+      "found",
+      "based_on_tags",
+      "count",
+      "recommendations"
+    ],
+    "type": "object"
+  }
+]

Changed3 schema fields changedv0.13.1Aug 17, 2026

removedInput schema / properties / count

Removed value: -{
-  "default": 10,
-  "description": "How many recommendations to return (1-25). Default 10.",
-  "exclusiveMinimum": 0,
-  "maximum": 25,
-  "type": "integer"
-}

addedInput schema / properties / limit

Added value: +{
+  "default": 10,
+  "description": "How many recommendations to return (1-25). Default 10.",
+  "exclusiveMinimum": 0,
+  "maximum": 25,
+  "type": "integer"
+}

changedInput schema / properties / min_discount / description

Previous value: -"Minimum discount %, e.g. 30 for '30%+ off'. Omit to include full-price games too."New value: +"Minimum discount %, e.g. 30 for '30%+ off'. Omit to include full-price games too. Filtered server-side and re-checked client-side, so it holds at any value including 100."

Changed10 schema fields changedv0.12.1Jul 30, 2026

addedInput schema / additionalProperties
```
Added value: +false
```
addedInput schema / properties / count / default
```
Added value: +10
```

changedInput schema / properties / count / description

Previous value: -"How many recommendations to return (default 10)."New value: +"How many recommendations to return (1-25). Default 10."

addedInput schema / properties / count / exclusiveMinimum
```
Added value: +0
```
removedInput schema / properties / count / minimum
```
Removed value: -1
```

changedInput schema / properties / exclude_tags / description

Previous value: -"Drop any candidate carrying ANY of these tags (case-insensitive), e.g. ['Souls-like'] for 'recommend me something except Souls-like'."New value: +"Drop any candidate carrying ANY of these tags (case-insensitive), e.g. ['Souls-like'] for 'recommend me something except Souls-like'. Use exact Steam tag names — a misspelled/unrecognized one isn't an error, it just drops nothing."

addedInput schema / properties / min_discount / exclusiveMinimum
```
Added value: +0
```
removedInput schema / properties / min_discount / minimum
```
Removed value: -1
```

removedOutput schema / anyOf

Removed value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "found": {
-        "const": false,
-        "type": "boolean"
-      },
-      "reason": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "found",
-      "reason"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "based_on_tags": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "count": {
-        "type": "number"
-      },
-      "found": {
-        "const": true,
-        "type": "boolean"
-      },
-      "recommendations": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "appid": {
-              "type": "number"
-            },
-            "discount_end": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "discount_pct": {
-              "type": "number"
-            },
-            "match_score": {
-              "description": "An internal ranking weight (playtime-on-matched-tags, discounted by review score) — not a percentage or 0-100 scale. Only meaningful relative to the other scores in this same response, to explain why one pick outranks another.",
-              "type": "number"
-            },
-            "matched_tags": {
-              "items": {
-                "type": "string"
-              },
-              "type": "array"
-            },
-            "name": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "original": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "platforms": {
-              "items": {
-                "type": "string"
-              },
-              "type": "array"
-            },
-            "price": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "release_date": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "review_count": {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "review_label": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "review_percent": {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "steam_deck": {
-              "enum": [
-                "unknown",
-                "unsupported",
-                "playable",
-                "verified"
-              ],
-              "type": "string"
-            },
-            "steam_frame": {
-              "enum": [
-                "unknown",
-                "unsupported",
-                "playable",
-                "verified"
-              ],
-              "type": "string"
-            },
-            "steam_machine": {
-              "enum": [
-                "unknown",
-                "unsupported",
-                "playable",
-                "verified"
-              ],
-              "type": "string"
-            },
-            "steam_os": {
-              "enum": [
-                "unknown",
-                "unsupported",
-                "playable",
-                "verified"
-              ],
-              "type": "string"
-            },
-            "store_url": {
-              "anyOf": [
-                {
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "tags": {
-              "items": {
-                "type": "string"
-              },
-              "type": "array"
-            },
-            "vr_support": {
-              "enum": [
-                "none",
-                "supported",
-                "required"
-              ],
-              "type": "string"
-            }
-          },
-          "required": [
-            "appid",
-            "name",
-            "store_url",
-            "review_percent",
-            "review_count",
-            "review_label",
-            "platforms",
-            "steam_deck",
-            "steam_os",
-            "steam_machine",
-            "steam_frame",
-            "vr_support",
-            "tags",
-            "release_date",
-            "discount_pct",
-            "discount_end",
-            "original",
-            "price",
-            "matched_tags",
-            "match_score"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      }
-    },
-    "required": [
-      "found",
-      "based_on_tags",
-      "count",
-      "recommendations"
-    ],
-    "type": "object"
-  }
-]

addedOutput schema / oneOf

Added value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "found": {
+        "const": false,
+        "type": "boolean"
+      },
+      "reason": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "found",
+      "reason"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "based_on_tags": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "count": {
+        "type": "number"
+      },
+      "found": {
+        "const": true,
+        "type": "boolean"
+      },
+      "recommendations": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "appid": {
+              "type": "number"
+            },
+            "discount_end": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "discount_pct": {
+              "type": "number"
+            },
+            "match_score": {
+              "description": "An internal ranking weight (playtime-on-matched-tags, discounted by review score) — not a percentage or 0-100 scale. Only meaningful relative to the other scores in this same response, to explain why one pick outranks another.",
+              "type": "number"
+            },
+            "matched_tags": {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "name": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "original": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "platforms": {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "price": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "release_date": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "review_count": {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "review_label": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "review_percent": {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "steam_deck": {
+              "enum": [
+                "unknown",
+                "unsupported",
+                "playable",
+                "verified"
+              ],
+              "type": "string"
+            },
+            "steam_frame": {
+              "enum": [
+                "unknown",
+                "unsupported",
+                "playable",
+                "verified"
+              ],
+              "type": "string"
+            },
+            "steam_machine": {
+              "enum": [
+                "unknown",
+                "unsupported",
+                "playable",
+                "verified"
+              ],
+              "type": "string"
+            },
+            "steam_os": {
+              "enum": [
+                "unknown",
+                "unsupported",
+                "playable",
+                "verified"
+              ],
+              "type": "string"
+            },
+            "store_url": {
+              "anyOf": [
+                {
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "tags": {
+              "items": {
+                "type": "string"
+              },
+              "type": "array"
+            },
+            "vr_support": {
+              "enum": [
+                "none",
+                "supported",
+                "required"
+              ],
+              "type": "string"
+            }
+          },
+          "required": [
+            "appid",
+            "name",
+            "store_url",
+            "review_percent",
+            "review_count",
+            "review_label",
+            "platforms",
+            "steam_deck",
+            "steam_os",
+            "steam_machine",
+            "steam_frame",
+            "vr_support",
+            "tags",
+            "release_date",
+            "discount_pct",
+            "discount_end",
+            "original",
+            "price",
+            "matched_tags",
+            "match_score"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      }
+    },
+    "required": [
+      "found",
+      "based_on_tags",
+      "count",
+      "recommendations"
+    ],
+    "type": "object"
+  }
+]

Addedv0.10.4Jul 26, 2026
Removedv0.10.2Jul 22, 2026
Addedv0.10.2Jul 22, 2026

TDQS

A4.9/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations declare readOnlyHint/openWorldHint, and the description adds substantial context beyond them: required STEAM_API_KEY, public profile with game-details visible, base-games-only filtering (no DLC/soundtracks/demos), and the specific conditions producing found:false (no account, no games, unresolvable tags). It also discloses the 30-most-played taste sample and fixed 300-entry catalog scan that can yield fewer than `limit` results — a behavioral limit an agent would otherwise be blind to.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the core purpose and ranking logic, then alternative routing, then caveats and auth — a sensible order with essentially no filler. It is dense and somewhat run-on in places (the long parenthetical chains), which costs a point against a perfect score, but every clause carries actionable information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a personalized-ranking tool with an output schema, this covers purpose, ranking mechanics, key returned fields (based_on_tags, matched_tags, match_score), auth prerequisites, degradation cases, and result-count limits. There is nothing an agent would need to guess before calling it correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is already 100%, but the description still adds meaning: exclude_tags is framed as steering away from a genre despite playtime match, min_discount is tied to a worked example and the short-result caveat, and the interaction between heavy exclude_tags/min_discount and the fixed scan is spelled out. This goes well past the schema's per-field text.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource plus scope: 'Recommend unowned Steam catalog games personalized to this player', and immediately explains the ranking mechanism (tag weights from playtime, discounted by review score). It explicitly distinguishes itself from discover_games and from the single-title case handled via get_items, so an agent can pick it without opening a schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives explicit when-to-use framing ('what should I play next' / 'recommend me something') and when-not: for 'something like THIS ONE game' route through get_items + discover_games instead. It even maps a natural-language user request ('suggest games on sale, not RPGs or shooters') onto concrete parameter values, which is exactly the routing guidance an agent needs.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.