steamwebapi

Official10 toolsLive

by sellrock-de

Live Steam Market API docs, schemas, products, games, markets and endpoint search.

io.github.sellrock-de/steamwebapi — Model Context Protocol (MCP) Server

This MCP server exposes live Steam Market API documentation data, including schemas and searchable endpoint information. It covers products, games, and markets, organizing details for developers who need structured references while building or integrating Steam-related tooling.

🛠️ Key Features

Live Steam Market API docs
Schemas
Products, games, and markets data
Endpoint search
Endpoint documentation coverage

🚀 Use Cases

Discover Steam Market API endpoints and structures
Look up schemas used by Steam market requests
Browse related products, games, and market listings

⚡ Developer Benefits

Centralized access to API documentation content
Structured schema references for integration work
Searchable endpoints to support faster development

⚠️ Limitations

Available scope is limited to the documented Steam Market API content provided by this server data set

Captured live from the server via tools/list.

search_endpoints

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.

Parameters4

query	string	required	Free-text query, e.g. "inventory cs2" or "float screenshot".
kind	string	optional	Restrict to endpoints or concepts.
tag	string	optional	Restrict to one OpenAPI tag (Items, Inventory, Profile, Float, Market Prices, Market Index, Account, Info, Explore, Proxy).
limit	integer	optional	Maximum number of hits returned.

Raw schema

{
  "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#"
}

get_endpoint

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.

Parameters2

path	string	required	Full OpenAPI path, e.g. "/steam/api/items" or "/account/me".
method	string	optional	HTTP method. Defaults to "get".

Raw schema

{
  "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#"
}

list_endpoints

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

Parameters1

tag

string

optional

Restrict to one tag. Omit to list every endpoint grouped by tag.

Raw schema

{
  "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#"
}

list_games

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

Parameters

No parameters.

Raw schema

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

list_markets

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

Parameters1

game

string

optional

Restrict to markets that cover a specific game slug, e.g. "cs2".

Raw schema

{
  "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#"
}

list_products

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.

Parameters

No parameters.

Raw schema

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

get_concept

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.

Parameters1

term

string

required

Concept name or alias, e.g. "assetid", "doppler phase", "market_hash_name", "pricelatest".

Raw schema

{
  "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#"
}

list_concepts

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

Parameters1

get_pricing

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.

Parameters3

useCase	string	optional	Optional use case such as "inventory", "profile", "float", "history", "items", "market prices" or "balanced production app".
expectedRequestsPerDay	integer	optional	Optional expected daily request count for plan recommendation.
includePlanCatalog	boolean	optional	Include the full public plan catalog with prices and rate limits. Defaults to true.

Raw schema

{
  "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#"
}

call_readonly_endpoint

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.

Parameters4

path	string	required	Documented OpenAPI GET path, e.g. "/steam/api/item" or "/market/{market}/prices".
parameters	object	optional	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	integer	optional	HTTP timeout in milliseconds. Defaults to 10000.
maxResponseBytes	integer	optional	Maximum response characters returned to the agent. Larger responses are truncated.

Raw schema

{
  "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#"
}

Install

Tools (10)

search_endpointsget_endpointlist_endpointslist_gameslist_marketslist_productsget_conceptlist_concepts

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://mcp.steamwebapi.com/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "steamwebapi": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.steamwebapi.com/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.

io.github.sellrock-de/steamwebapi — Model Context Protocol (MCP) Server

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

search_endpoints

get_endpoint

list_endpoints

list_games

list_markets

list_products

get_concept

list_concepts

get_pricing

call_readonly_endpoint

Install

Remote endpoint

Related servers