steamwebapi

REMOTE · MCP.STEAMWEBAPI.COM · SCANNED AUG 3

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

Available components

+3 this week 70 70 Trust /100

Trust breakdown (6 categories)

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

Install

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 Codex opencode OpenClaw Hermes Other

# add to Claude Code

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

# ~/.codex/config.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
    }
  }
}

# add to OpenClaw

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

# ~/.hermes/config.yaml

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

// mcp.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 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.

Show 5 earlier entries Hide earlier entries

Diagnostics

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

MCP tools — 10 exposed · ~831 tokens

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.

Tool Tokens

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.

Input Output Examples

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.

Input Output Examples

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.

Input Output Examples

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.

Input Output Examples

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.

Input Output Examples

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.

Input Output Examples

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 Output Examples

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.

Input Output Examples

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 Output Examples

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.

Input Output Examples

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.

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Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

26 Jul 3 Aug

Day	Score
26 Jul	66
27 Jul	67
28 Jul	68
29 Jul	68
30 Jul	69
31 Jul	69
1 Aug	69
2 Aug	69
3 Aug	70