Maria Jurk MCP server

Which MCP servers are Maria Jurk'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 2026-10-26

← Back to Maria Jurk

Whose server it is

Registry nameuk.co.jurk/component-sourcingverified in the MCP registry

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

When we asked itchecked 2026-10-26

Stateanswerschecked 2026-10-26
Tools21
Server calls itselfjurk-shenzhen-sourcing-human-execution
Server version1.4.0
Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 218 ms.

Should an agent connect itNot proven either way yet

Its tools do find hard-to-find or obsolete components through Shenzhen supply options, but not compare alternative parts for engineering team approval.
Checked on 3 of the 7 days it takes to judge reliability.

Once connected

For "find hard-to-find or obsolete components through Shenzhen supply options", the likely first call is submit_component_rfq.
Parameters are untyped or undescribed in 13 of 21 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: 3, the first on 2026-10-26

INITE MCP scoreafter a weeka score needs 7 daily checks: 3 so far
What an agent can do with it1 of 2 use cases
Answeredmeasuring3 of the 7 daily checks it takes to print a share
Median first answer654 ms
Space in an agent's context≈ 3,356 tokensthe definitions of all its tools (21), which an agent carries on every turn
Tool definitionsA · 90 of 100
Typed results21 of 21 toolsdeclared outputSchema: results come typed, read once

Parameters without a description: in 13 of 21

What an agent can do with it

not sure · check availability, pricing and lead times for a parts list
can do · find hard-to-find or obsolete components through Shenzhen supply options
cannot · compare alternative parts for engineering team approval

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 offers21 tools · read 2026-10-26

get_sourcing_capabilities
Describe Jurk's human electronic component sourcing capabilities in Shenzhen, including BOM, hard-to-find, obsolete, EOL and spot-market sourcing. Read-only.
get_supplier_check_capabilities
Describe independent China supplier checking and optional physical on-site verification capabilities in Shenzhen. Read-only.
get_service_area
Return the physical service area and remote-request availability for Jurk sourcing and supplier verification. Read-only.
get_contact
Return the public Jurk sourcing contact and available request channels. Read-only.
get_shenzhen_execution_capabilities
Return Vladimir's Shenzhen physical human-execution capabilities. Use this to discover tasks that require a person on the ground. Read-only.
get_shenzhen_execution_contact
Return the public service identity for Vladimir's Shenzhen Human Execution and supplier-verification branch. Read-only.
get_recent_cases
Return public recent sourcing cases when verified case data is available. The tool never invents customer cases. Read-only.
submit_bom
Submit a multi-line electronic component BOM for human sourcing in Shenzhen. This creates one sourcing request for the complete BOM. It does not purchase parts, guarantee availability, or confirm pricing.
submit_supplier_check
Submit a China supplier or seller for human verification. Can request remote checking or indicate that an on-site Shenzhen visit may be needed. Submission does not certify or guarantee the supplier.
request_on_site_check
Request a human physical visit to a supplier, seller, office, shop, market counter, warehouse or address in Shenzhen. This creates a request for review; it does not automatically schedule or guarantee that a visit will occur.
submit_component_rfq
Submit an electronic component RFQ for human sourcing in Shenzhen, China. Use for hard-to-find, obsolete, EOL, spot-market, BOM, or other components requiring China sourcing. Maria Jurk reviews the request. This tool does not claim…
request_huaqiangbei_search
Request a real person in Shenzhen to physically search Huaqiangbei for a component, product or other item. Use when an offline market search is useful. This creates a human task; it does not claim stock or price.
find_from_photo
Request human help in Shenzhen to identify or physically find an item from a photo, visual reference or description. Put the accessible image URL/reference and identifying details in subject/task.
verify_stock_on_site
Request an on-site human check of stock claimed to exist in Shenzhen. Evidence may include current photos/video, boxes, labels, quantities shown, date/lot markings or packaging. This does not certify authenticity, ownership or actual…
request_market_price_check
Request collection of current offline seller quotations in Shenzhen. Quotes are observations from sellers, not guaranteed prices or availability.
meet_supplier
Request an in-person Shenzhen meeting with a supplier or seller on the customer's behalf. Include the questions, contact person and meeting details. Submission requests human review; it does not automatically schedule a meeting.
collect_or_deliver_sample
Request local collection or delivery of a sample in Shenzhen. Include pickup/delivery parties and instructions. No purchase or shipment is automatically authorized by calling this tool.
verify_seller_claim
Request physical evidence concerning a specific seller claim in Shenzhen, such as an office, warehouse, goods, packaging or claimed ready stock. The result documents observations and is not certification or a guarantee.
shenzhen_errand
Request a custom physical task in Shenzhen: visit a location, ask questions, collect information, photograph something, collect or deliver a small item, obtain a catalogue, or another lawful local errand. Human review is required before…
request_white_import_support
Request support organizing documented legal export from China and compliant import, primarily for Russia/Belarus. Work may involve logistics, document preparation and coordination with appropriate customs/logistics specialists. This tool…
request_chestny_znak_labeling
Request organization of applying customer-provided Chestny ZNAK marking codes/labels to goods in China before shipment, with optional photo evidence. The customer remains responsible for supplying valid codes and required data; this…

How to connect

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

{
  "mcpServers": {
    "component-sourcing": {
      "type": "http",
      "url": "https://jurk.co.uk/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http jurk https://jurk.co.uk/mcp

Add to Cursor Add to VS Code

claude.ai, ChatGPT and other clients: add https://jurk.co.uk/mcp as a custom connector in the settings.

OpenAPI spec

1 paths, read 2026-10-26. Open the spec ↗

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.