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Heartly MCP server

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

read 2026-10-26

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Whose server it is
  • Registry nameio.heartly/dealsverified in the MCP registry

The registry name sits under heartly.io. 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
  • Tools3
  • Server calls itselfheartly-deals
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 1008 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: launch a timed discount on one chosen product; run recurring sales within set discount and time rules; send buyers straight to checkout without codes or sign-ups.
  • Checked on 1 of the 7 days it takes to judge reliability.

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: 1, the first on 2026-10-26
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 1 so far
  • What an agent can do with it0 of 3 use cases
  • Answeredmeasuring1 of the 7 daily checks it takes to print a share
  • Median first answer286 ms
  • Space in an agent's context≈ 602 tokensthe definitions of all its tools (3), which an agent carries on every turn
  • Tool definitionsB · 83 of 100
  • Typed results0 of 3 toolsdeclared outputSchema: results come typed, read once
  • Not saying whether it only reads or can destroy: 3 of 3

What an agent can do with it

  • cannot · launch a timed discount on one chosen product
  • cannot · run recurring sales within set discount and time rules
  • cannot · send buyers straight to checkout without codes or sign-ups

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 (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). 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 offers3 tools · read 2026-10-26
  • list_active_deals

    List currently active flash-sale deals from verified Heartly merchants. Returns deals sorted by ending soonest. Filters are optional and combinable.

  • search_deals_by_category

    Search active deals filtered by category. The category argument is required. Other filters (country, min_discount_pct, ending_within_hours) are optional.

  • get_deal_by_id

    Look up a single active deal by its Heartly internal id (UUID).

How to connect

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

{
  "mcpServers": {
    "deals": {
      "type": "http",
      "url": "https://mcp.heartly.io/"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http heartly https://mcp.heartly.io/

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mcp.heartly.io/ 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.