MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Other

StackTheDeal Deals

Live, verified deals from StackTheDeal — every price checked on the retailer's own page.

Checks passed
15 / 22

0 failed · 7 not measured

Median response
160 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
9

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
103
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 109 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name stackthedeal-deals.

  • Pass
    Lists tools

    tools/list returned 9 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 160 ms over 2 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 206 ms over 2 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    2 of 2 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Pass
    Stable tool list

    No tool was removed and no required parameter was added in the last 30 days.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    16 of 16 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-20T01:34:25.276058Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using StackTheDeal Deals

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http stackthedeal-deals https://stackthedeal.com/mcp

Capabilities

Tools 9

get_card_offers

Credit-card welcome offers and bank-account bonuses currently published on StackTheDeal: card name, headline offer, welcome bonus and annual fee (bank bonuses carry their fee terms instead). Each result links to the offer's page on stackthedeal.com — the apply link lives on that page; no bank or referral links are returned here.

Discovered
get_coupons

Live deals that need a coupon/promo code at checkout, each with its coupon_code spelled out. Use for 'any coupon codes?' questions. Results link to each deal's page on stackthedeal.com only.

Discovered
get_deal

Get one deal by its slug (the last part of its stackthedeal.com/deals/<slug>/ URL), including whether it is still live.

Discovered
get_expiring_deals

Live deals whose end time falls within the next 48 hours (configurable), soonest-ending first, each with hours_left. Use for 'what deals are ending today / about to expire?' questions. Results link to each deal's page on stackthedeal.com only.

Discovered
get_hot_deals

The deals StackTheDeal flagged as hottest right now: price-mistake / glitch deals first, then hot deals, newest first. All live and verified. Use for 'what are the best deals right now?' questions. Results link to each deal's page on stackthedeal.com only.

Discovered
get_site_stats

StackTheDeal at a glance: how many deals are live right now, which stores they cover, how many are flagged hot, and when the data was last updated.

Discovered
list_deals

List live deals currently published on StackTheDeal (stackthedeal.com). Deals are verified on the retailer's own page before posting. Returns the newest deals first, with price, regular price, discount percentage, store, and a link to each deal's page on stackthedeal.com (results link to our pages only — the retailer's link lives on that page).

Discovered
list_deals_by_store

All live deals at one store, exact name match — e.g. 'Amazon', 'Walmart', 'Costco', 'B&H'. Use for 'what deals does Walmart have?' questions. Results link to each deal's page on stackthedeal.com only.

Discovered
search_deals

Search StackTheDeal's live deals by keyword(s) — matched against deal titles, summaries, store and category. Use for questions like 'find me a deal on a coffee maker' or 'any LEGO deals?'. Results are StackTheDeal's verified site deals.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected109 ms9
Connected211 ms9