steamwebapi

Read the reusable SteamWebAPI SKILL.md for integration workflows, credentials, prices, item variants and CS2 release discovery. Useful when the client does not expose MCP resources or initialization instructions.

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Fuzzy text search across all steamwebapi.com OpenAPI endpoints and Steam domain concepts (assetid, doppler phase, market_hash_name, etc.). Returns ranked hits with path, method, tag and summary.

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "minLength": 1,
      "description": "Free-text query, e.g. \"inventory cs2\" or \"float screenshot\"."
    },
    "kind": {
      "type": "string",
      "enum": [
        "endpoint",
        "concept"
      ],
      "description": "Restrict to endpoints or concepts."
    },
    "tag": {
      "type": "string",
      "description": "Restrict to one OpenAPI tag (Items, Inventory, Profile, Float, Market Prices, Market Index, Account, Info, Explore, Proxy)."
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 50,
      "default": 10,
      "description": "Maximum number of hits returned."
    }
  },
  "required": [
    "query"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Returns the full OpenAPI operation object for a given path: parameters, request body, all response schemas, examples, and tags. Use after search_endpoints to drill into a specific endpoint.

{
  "type": "object",
  "properties": {
    "path": {
      "type": "string",
      "minLength": 1,
      "description": "Full OpenAPI path, e.g. \"/steam/api/items\" or \"/account/me\"."
    },
    "method": {
      "type": "string",
      "enum": [
        "get",
        "post",
        "put",
        "patch",
        "delete"
      ],
      "description": "HTTP method. Defaults to \"get\"."
    }
  },
  "required": [
    "path"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Lists all steamwebapi.com endpoints (path + method + summary), optionally filtered by tag. Useful for quickly enumerating what is available.

{
  "type": "object",
  "properties": {
    "tag": {
      "type": "string",
      "description": "Restrict to one tag. Omit to list every endpoint grouped by tag."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Lists every game supported by steamwebapi.com with its slug, name, Steam appId, and the value to pass as `game=` in API queries.

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Lists every third-party marketplace covered by the steamwebapi.com market price endpoints, with their domain and the games they cover.

{
  "type": "object",
  "properties": {
    "game": {
      "type": "string",
      "description": "Restrict to markets that cover a specific game slug, e.g. \"cs2\"."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Lists steamwebapi.com product packages (Price API, Inventory API, Float API, ...) with the endpoints each one bundles. Use get_pricing for paid plans, request quotas and upgrade guidance.

{
  "type": "object",
  "properties": {},
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Returns a detailed explanation for a Steam / steamwebapi concept (identifiers, CS2 mechanics, pricing fields, inventory flags). Built from curated domain knowledge specific to this platform.

{
  "type": "object",
  "properties": {
    "term": {
      "type": "string",
      "minLength": 1,
      "description": "Concept name or alias, e.g. \"assetid\", \"doppler phase\", \"market_hash_name\", \"pricelatest\"."
    }
  },
  "required": [
    "term"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Lists every curated concept exposed by get_concept, optionally filtered by category. Use to discover what domain explanations are available.

{
  "type": "object",
  "properties": {
    "category": {
      "type": "string",
      "enum": [
        "identifiers",
        "cs2",
        "market",
        "inventory",
        "pricing",
        "auth"
      ],
      "description": "Filter the list by concept category."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Returns public steamwebapi pricing plans, per-endpoint rate limits, API-key location, quota guidance and a recommended plan for the requested use case. Does not perform checkout or account actions.

{
  "type": "object",
  "properties": {
    "useCase": {
      "type": "string",
      "description": "Optional use case such as \"inventory\", \"profile\", \"float\", \"history\", \"items\", \"market prices\" or \"balanced production app\"."
    },
    "expectedRequestsPerDay": {
      "type": "integer",
      "exclusiveMinimum": 0,
      "description": "Optional expected daily request count for plan recommendation."
    },
    "includePlanCatalog": {
      "type": "boolean",
      "default": true,
      "description": "Include the full public plan catalog with prices and rate limits. Defaults to true."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Executes a documented steamwebapi GET endpoint with the caller API key from the MCP Authorization or X-Api-Key header. Refuses POST/PUT/PATCH/DELETE plus Proxy, Steam Guard and Tradeoffer endpoints.

{
  "type": "object",
  "properties": {
    "path": {
      "type": "string",
      "minLength": 1,
      "description": "Documented OpenAPI GET path, e.g. \"/steam/api/item\" or \"/market/{market}/prices\"."
    },
    "parameters": {
      "type": "object",
      "additionalProperties": {
        "anyOf": [
          {
            "type": [
              "string",
              "number",
              "boolean"
            ]
          },
          {
            "type": "array",
            "items": {
              "$ref": "#/properties/parameters/additionalProperties/anyOf/0"
            }
          }
        ]
      },
      "description": "Query and path parameters for the endpoint. Do not include `key`; pass your API key via the MCP Authorization or X-Api-Key header."
    },
    "timeoutMs": {
      "type": "integer",
      "minimum": 500,
      "maximum": 20000,
      "default": 10000,
      "description": "HTTP timeout in milliseconds. Defaults to 10000."
    },
    "maxResponseBytes": {
      "type": "integer",
      "minimum": 1000,
      "maximum": 200000,
      "default": 80000,
      "description": "Maximum response characters returned to the agent. Larger responses are truncated."
    }
  },
  "required": [
    "path"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}