steamwebapi
REMOTE · MCP.STEAMWEBAPI.COM · SCANNED AUG 3
Live Steam Market API docs, schemas, products, games, markets and endpoint search.
Available components
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. How we score →
Endpoint Security60
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- 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. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability85
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 1105 tokens (~46/item across 24 items; 10 tools + 14 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · mcp.steamwebapi.com
claude mcp add --transport http sellrock-de-steamwebapi https://mcp.steamwebapi.com/mcp
[mcp_servers.sellrock-de-steamwebapi] url = "https://mcp.steamwebapi.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"sellrock-de-steamwebapi": {
"type": "remote",
"url": "https://mcp.steamwebapi.com/mcp",
"enabled": true
}
}
} openclaw mcp add sellrock-de-steamwebapi --url https://mcp.steamwebapi.com/mcp --transport streamable-http
mcp_servers:
sellrock-de-steamwebapi:
url: "https://mcp.steamwebapi.com/mcp" {
"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.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Aug 26 +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.
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 28 Jul 26 +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.
- 27 Jul 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 66
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 3 Aug 2026 · Probed https://mcp.steamwebapi.com/mcp
TLS valid
Negotiated TLS 1.2 with TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=steamwebapi.com | CN=WE1,O=Google Trust Services,C=US | 20 Jun 2026 | 18 Sept 2026 | ECDSA 256 | ECDSA-SHA256 | 23258083f3208d6513ebedfd4b58d2f6 |
| SANs: steamwebapi.com, *.steamwebapi.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
DNSSEC secure
Validation of mcp.steamwebapi.com. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| steamwebapi.com. | present | 2371 | 13 | Verified |
| mcp.steamwebapi.com. | Verified address RRset verified with the apex keys |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.steamwebapi.com/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.steamwebapi.com/mcp | HTTPS enforced | 301 | https://mcp.steamwebapi.com/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
call_readonly_endpoint Call read-only steamwebapi endpoint ~156
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | yes | Documented OpenAPI GET path, e.g. "/steam/api/item" or "/market/{market}/prices". |
| timeoutMs | integer | — | HTTP timeout in milliseconds. Defaults to 10000. |
No output schema declared.
No examples provided.
get_concept Explain Steam / steamwebapi concept ~79
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.
| Name | Type | Req | Description |
|---|---|---|---|
| term | string | yes | Concept name or alias, e.g. "assetid", "doppler phase", "market_hash_name", "pricelatest". |
No output schema declared.
No examples provided.
get_endpoint Get full endpoint specification ~84
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.
| Name | Type | Req | Description |
|---|---|---|---|
| method | string | — | HTTP method. Defaults to "get". |
| path | string | yes | Full OpenAPI path, e.g. "/steam/api/items" or "/account/me". |
No output schema declared.
No examples provided.
get_pricing Get steamwebapi pricing and quota guidance ~126
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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". |
No output schema declared.
No examples provided.
list_concepts List Steam / steamwebapi concepts ~46
Lists every curated concept exposed by get_concept, optionally filtered by category. Use to discover what domain explanations are available.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | — | Filter the list by concept category. |
No output schema declared.
No examples provided.
list_endpoints List endpoints ~59
Lists all steamwebapi.com endpoints (path + method + summary), optionally filtered by tag. Useful for quickly enumerating what is available.
| Name | Type | Req | Description |
|---|---|---|---|
| tag | string | — | Restrict to one tag. Omit to list every endpoint grouped by tag. |
No output schema declared.
No examples provided.
list_games List supported games ~40
Lists every game supported by steamwebapi.com with its slug, name, Steam appId, and the value to pass as `game=` in API queries.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_markets List third-party markets ~58
Lists every third-party marketplace covered by the steamwebapi.com market price endpoints, with their domain and the games they cover.
| Name | Type | Req | Description |
|---|---|---|---|
| game | string | — | Restrict to markets that cover a specific game slug, e.g. "cs2". |
No output schema declared.
No examples provided.
list_products List product packages ~47
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search_endpoints Search endpoints and concepts ~136
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.
| Name | Type | Req | Description |
|---|---|---|---|
| kind | string | — | Restrict to endpoints or concepts. |
| limit | integer | — | Maximum number of hits returned. |
| query | string | yes | 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). |
No output schema declared.
No examples provided.