# steamwebapi (remote · mcp.steamwebapi.com)

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

- Trust score: 70/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `mcp.steamwebapi.com`: 70/100 (this document), [markdown](https://verifymcp.io/servers/sellrock-de-steamwebapi/mcp.md), [page](https://verifymcp.io/servers/sellrock-de-steamwebapi/mcp)

## Channel facts

- Endpoint: `https://mcp.steamwebapi.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.1`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 60/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 8 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 85/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 1105 tokens (~46/item across 24 items; 10 tools + 14 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http sellrock-de-steamwebapi https://mcp.steamwebapi.com/mcp
```

### Codex

```toml
[mcp_servers.sellrock-de-steamwebapi]
url = "https://mcp.steamwebapi.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "sellrock-de-steamwebapi": {
      "type": "remote",
      "url": "https://mcp.steamwebapi.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add sellrock-de-steamwebapi --url https://mcp.steamwebapi.com/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  sellrock-de-steamwebapi:
    url: "https://mcp.steamwebapi.com/mcp"
```

### Other

```json
{
  "mcpServers": {
    "sellrock-de-steamwebapi": {
      "type": "http",
      "url": "https://mcp.steamwebapi.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 69, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 69, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-28 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 67, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 66)

First indexed and scored.

## MCP tools (10)

### `search_endpoints` (~136 tokens)

Search endpoints and concepts

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.

Input parameters:

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

### `get_endpoint` (~84 tokens)

Get full endpoint specification

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.

Input parameters:

- `method` (string): HTTP method. Defaults to "get".
- `path` (string, required): Full OpenAPI path, e.g. "/steam/api/items" or "/account/me".

### `list_endpoints` (~59 tokens)

List endpoints

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

Input parameters:

- `tag` (string): Restrict to one tag. Omit to list every endpoint grouped by tag.

### `list_games` (~40 tokens)

List supported games

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

### `list_markets` (~58 tokens)

List third-party markets

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

Input parameters:

- `game` (string): Restrict to markets that cover a specific game slug, e.g. "cs2".

### `list_products` (~47 tokens)

List product packages

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.

### `get_concept` (~79 tokens)

Explain Steam / steamwebapi 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.

Input parameters:

- `term` (string, required): Concept name or alias, e.g. "assetid", "doppler phase", "market_hash_name", "pricelatest".

### `list_concepts` (~46 tokens)

List Steam / steamwebapi concepts

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

Input parameters:

- `category` (string): Filter the list by concept category.

### `get_pricing` (~126 tokens)

Get steamwebapi pricing and quota guidance

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.

Input parameters:

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

### `call_readonly_endpoint` (~156 tokens)

Call read-only steamwebapi 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.

Input parameters:

- `maxResponseBytes` (integer): Maximum response characters returned to the agent. Larger responses are truncated.
- `parameters` (object): Query and path parameters for the endpoint. Do not include `key`; pass your API key via the MCP Authorization or X-Api-Key header.
- `path` (string, required): Documented OpenAPI GET path, e.g. "/steam/api/item" or "/market/{market}/prices".
- `timeoutMs` (integer): HTTP timeout in milliseconds. Defaults to 10000.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/sellrock-de-steamwebapi/mcp#diagnostics

## Score history

- 2026-08-03: 70
- 2026-08-02: 69
- 2026-08-01: 69
- 2026-07-31: 69
- 2026-07-30: 69
- 2026-07-29: 68
- 2026-07-28: 68
- 2026-07-27: 67
- 2026-07-26: 66

## Links

- Remote endpoint: https://mcp.steamwebapi.com/mcp
- Website: https://steamwebapi.com/mcp
- Changelog RSS feed: https://verifymcp.io/servers/sellrock-de-steamwebapi/mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/sellrock-de-steamwebapi/mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/sellrock-de-steamwebapi/mcp