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OpenShopGraph MCP server

Which MCP servers are OpenShopGraph's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-25

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Whose server it is
  • Registry namecom.openshopgraph/mcpverified in the MCP registry

The registry name sits under openshopgraph.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-25
  • Stateanswerschecked 2026-10-25
  • Tools6
  • Server calls itselfopenshopgraph
  • Server version0.1.1
  • Protocol version2025-06-18

On 2026-10-25 the server answered initialize and tools/list without a sign-in. First answer in 1520 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: Check a shop's returns and shipping terms; Compare shop return windows before buying.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • For "Compare shop return windows before buying", the likely first call is find_shop.
  • Parameters are untyped or undescribed in 4 of 6 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 2, the first on 2026-10-25
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
  • What an agent can do with it2 of 2 use cases
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer613 ms
  • Space in an agent's context≈ 2,448 tokensthe definitions of all its tools (6), which an agent carries on every turn
  • Tool definitionsB · 89 of 100
  • Typed results0 of 6 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 4 of 6

What an agent can do with it

  • can do · Check a shop's returns and shipping terms
  • can do · Compare shop return windows before buying
  • not sure · Test discount codes at checkout

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers6 tools · read 2026-10-25
  • find_shop

    Search merchants/shops by free-text query (name or domain fragment), optionally filtered by country (ISO 3166-1 alpha-2, e.g. "DE") and/or by an exact category slug. Returns the public shop view only; shops still under internal review are…

  • list_categories

    Enumerate the shop category taxonomy: every category slug currently carried by at least one public shop, together with how many public shops carry it. The taxonomy is flat (no parent/child hierarchy, e.g. "fashion" and "womens-clothing"…

  • get_shop

    Fetch a single merchant/shop by id or domain (public view). Answers "shop not found" for shops still under internal review, identical to a genuinely unknown domain, so reviewers cannot be distinguished from typos. The offers array is…

  • list_coupons

    List currently USABLE discount codes/coupons, optionally filtered by shop_domain (e.g. "otto.de"). A code is withheld from `results` when it is EXPIRED (valid_until has passed), when a real checkout test PROVED it does not work…

  • get_shop_policies

    What a shop STATES about its own policies, each fact with the date it was last checked and where it was read: return window in days (returns_days), free return label, tracking offered, payment methods, buyer-protection seal, plus the…

  • get_shipping_policy

    What a shop STATES about its own shipping: which destinations it names, the delivery time it claims, and any free-shipping threshold, plus the date that statement was last checked and where it was read (policy_page or structured_data)…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "openshopgraph": {
      "type": "http",
      "url": "https://api.openshopgraph.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http openshopgraph https://api.openshopgraph.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://api.openshopgraph.com/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.