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pcblt MCP server

Which MCP servers are pcblt'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

← Back to pcblt

Whose server it is
  • Registry namecom.pcblt/pcbltverified in the MCP registry

The registry name sits under pcblt.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
  • Tools12
  • Server calls itselfpcblt
  • Server version0.4.0
  • Protocol version2025-06-18

On 2026-10-25 the server answered initialize and tools/list without a sign-in. First answer in 1658 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: check whether a domain's email spoofing protection is enforced; trace where a shortened link really redirects; check whether a web service is down right now.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • For "check whether a domain's email spoofing protection is enforced", the likely first call is check_email_auth.
  • For "trace where a shortened link really redirects", the likely first call is trace_redirects.
  • For "check whether a web service is down right now", the likely first call is check_service_status.

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 it3 of 3 use cases
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer1978 ms
  • Space in an agent's context≈ 2,629 tokensthe definitions of all its tools (12), which an agent carries on every turn
  • Tool definitionsB · 83 of 100
  • Typed results0 of 12 toolsdeclared outputSchema: results come typed, read once
  • Not saying whether it only reads or can destroy: 12 of 12

What an agent can do with it

  • can do · check whether a domain's email spoofing protection is enforced
  • can do · trace where a shortened link really redirects
  • can do · check whether a web service is down right now

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 offers12 tools · read 2026-10-25
  • ping

    Health check for the pcblt server. Returns the server version and the current UTC time. Use only to confirm connectivity — it carries no other data.

  • dns_lookup

    Look up live DNS records for a domain (A, AAAA, MX, TXT, NS, CNAME, CAA, SOA). Use whenever the real, current DNS state matters: where a domain points, which mail servers it uses, whether it resolves at all, or to verify a DNS change…

  • check_email_auth

    Check a domain's live email authentication — SPF, DKIM and DMARC — and return a plain-language verdict on whether it is actually enforced. Use for questions about mail being spoofed, landing in spam, or failing delivery, and to audit a…

  • trace_redirects

    Follow a URL's redirect chain hop by hop and report every stop with its status code, plus the final destination. Use to find where a shortened or tracking link actually leads before opening it, to debug redirect loops, or to check that a…

  • check_security_headers

    Fetch a URL and report which HTTP security headers it sets — HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy and Permissions-Policy — with what each one is for. Use to audit a site's header posture or verify a header…

  • ram_price_index

    Current PC memory prices and their daily history: blended dollars-per-GB, the cheapest tracked kit in each DDR4/DDR5 segment, and 7- and 30-day movement. Use for any question about what RAM costs right now, whether memory prices are…

  • price_check

    Judge whether a specific asking price for a PC part is good, by comparing it against tracked market data. Use when someone asks 'is $X a good price for Y' or wants a listing sanity-checked. Strongest for RAM, which is compared per-GB…

  • find_deals

    Search recently-sighted PC hardware deals aggregated from Slickdeals, r/buildapcsales and DealNews. Use when someone wants current deals on a component type or under a budget. Results are sightings recorded when first seen, NOT verified…

  • search_remote_jobs

    Search currently-open REMOTE tech jobs aggregated from company ATS boards (Greenhouse, Ashby, Lever, Workday, iCIMS) and remote job feeds. Use when someone asks what remote roles are open in a discipline, at a company, or above a salary…

  • remote_job_market

    Aggregate view of the remote tech job market as PC-BUILT currently tracks it: open counts by discipline, which companies are hiring most, how many postings demand US residency, and what salary data exists. Use for 'what is the remote…

  • check_service_status

    Current reported status of major developer and consumer services (GitHub, Cloudflare, OpenAI, npm, Vercel, Discord, Reddit and others). Use when asked whether a service is down or having problems right now. Sampled from each vendor's own…

  • service_uptime_history

    How reliable a service has actually been over time: percentage of readings operational, degraded, or in a major outage, plus a list of incident windows. Use for questions a status page cannot answer — 'how often has Vercel gone down this…

How to connect

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

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

Add it

Claude Code, in a terminal

claude mcp add --transport http pcblt https://pcblt.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://pcblt.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.