shelf-smoke — url smoke / headless QA MCP Server

by kymac-shelf Your server? Claim it

answering

shelf-smoke — url smoke / headless QA is answering right now. Last checked 6 min ago. It exposes 12 tools.

url smoke / headless QA: desktop+phone → pass/fail JSON. MCP shelf.kymac.co

Uptime history 48 hours of history

48 hours agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

411 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 7

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 17 September 2026. No other catalogue keeps this.

17 Sep 4 tool descriptions were rewritten checkout_credits, confirm_credits, list_credit_packs and 1 more

17 Sep 2 tools appeared revoke_key, rotate_key

17 Sep a tool changed version

Nothing serious here today

Today is the operative word: we check shelf-smoke — url smoke / headless QA every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add shelf-smoke --transport http https://shelf.kymac.co/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "shelf-smoke": {
      "url": "https://shelf.kymac.co/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.shelf-smoke]
url = "https://shelf.kymac.co/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "shelf-smoke": {
      "url": "https://shelf.kymac.co/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "shelf-smoke": {
      "url": "https://shelf.kymac.co/mcp"
    }
  }
}

Available tools 12

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

credit

credit_balance

Derived prepaid balance for this caller_id (GET /credits/balance).

credit_events

Append-only Ledger events for this caller_id (GET /credits/events): credit.grant (first_key), credit.purchase, credit.debit, optional credit.balance_snapshot.

list_credit_packs

Prepaid TEST packs (GET /credits/packs). checkout_credits is intent only; credits grant after confirm_credits.

checkout

checkout_credits

Stripe TEST PaymentIntent for a pack (POST /credits/checkout). Intent only — returns credits_pending; credits are not granted or spendable until confirm_credits succeeds. Requires a caller key.

confirm

confirm_credits

Confirm a TEST PaymentIntent with Stripe test card pm_card_visa (POST /credits/confirm). This is when credits become granted/spendable (appends credit.purchase with credits_added). TEST only.

health

health

Public readiness (GET /health): billing (test|live|gated) and runner_ready. No key.

issue

issue_key

Mint a caller key (POST /keys). Bot install starts at GET https://shelf.kymac.co/llms.txt (sole advertised entry). Secret ssm_… is returned once. Prefer Authorization: Bearer; X-API-Key is an alias. First issue grants 1 free credit (credit.grant reason=first_key). Quote cost with quote_credits before smoke.

quote

quote_credits

Dry-run cost for an op without debit (GET /credits/quote?op=smoke). Returns cost, balance, and would_succeed.

revoke

revoke_key

Invalidate the presented secret (POST /keys/revoke). Same id is revoked; old secret then fails 401 invalid_api_key. Prefer Authorization: Bearer; X-API-Key is an alias only. No ops file-edit.

rotate

rotate_key

Replace the presented secret (POST /keys/rotate). Same id/caller_id and credits. New ssm_… is returned once. Old secret then fails 401 invalid_api_key. Prefer Authorization: Bearer; X-API-Key is an alias only. No ops file-edit.

smoke

smoke

Headless smoke (POST /smoke). Install via GET https://shelf.kymac.co/llms.txt only. Prefer Authorization: Bearer; X-API-Key is an alias. Golden URL https://example.com/ — compare ok true/false JSON in llms.txt. First key includes 1 free credit. Quote first with quote_credits (no debit). Debits 1 credit on ok:true (credit.debit reason=smoke_success). 200 bodies include credits_burned and credits_remaining. HTTP fails use code/message/retryable/next (error aliases message). 401 next=refresh key. 402: code=insufficient_credits, retryable=false, next=buy credits. Retryable fails use next=retry.

verify

verify_key

Confirm SHELF_SMOKE_API_KEY or Authorization: Bearer (GET /keys/verify). X-API-Key is an alias only. Does not echo the secret.

Endpoints

URL	Transport	State	Latency	Checked
https://shelf.kymac.co/mcp	streamable-http	answering	426 ms	6 min ago

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shelf-smoke — url smoke / headless QA — questions

Answers built from our own checks of this server.

What can shelf-smoke — url smoke / headless QA do?

It exposes 12 tools, read directly from the server on our last check. Among them: checkout_credits, confirm_credits, credit_balance, credit_events, health, issue_key and 6 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is shelf-smoke — url smoke / headless QA working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 411 ms. The bar chart above shows every period we have measured.

How do I connect shelf-smoke — url smoke / headless QA?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does shelf-smoke — url smoke / headless QA need an API key?

No. shelf-smoke — url smoke / headless QA completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 12 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is shelf-smoke — url smoke / headless QA?

It answers our handshake in 411 ms on average, which is faster than 37% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.