Skip to content

K-AgentPay MCP server

Which MCP servers are K-AgentPay'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 2026-10-27

← Back to K-AgentPay

Whose server it is
  • Registry namecom.k-agentpay/kaia-x402verified in the MCP registry

The registry name sits under k-agentpay.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-27
  • Stateanswerschecked 2026-10-27
  • Tools9
  • Server calls itselfk-agentpay
  • Server version0.3.1
  • Protocol version2025-06-18

On 2026-10-27 the server answered initialize and tools/list without a sign-in. First answer in 339 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: check live security wait times at Incheon airport; look up next Seoul subway trains by station; find upcoming K-pop concerts in Korea.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • For "check live security wait times at Incheon airport", the likely first call is incheon_airport_wait.
  • For "look up next Seoul subway trains by station", the likely first call is seoul_subway_now.
  • For "find upcoming K-pop concerts in Korea", the likely first call is kpop_search.
  • Parameters are untyped or undescribed in 5 of 9 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: 2, the first on 2026-10-27
  • 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 answer358 ms
  • Space in an agent's context≈ 913 tokensthe definitions of all its tools (9), which an agent carries on every turn
  • Tool definitionsC · 74 of 100
  • Typed results0 of 9 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 5 of 9
  • Not saying whether it only reads or can destroy: 9 of 9

What an agent can do with it

  • can do · check live security wait times at Incheon airport
  • can do · look up next Seoul subway trains by station
  • can do · find upcoming K-pop concerts in Korea

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 offers9 tools · read 2026-10-27
  • kpop_search

    Free. Search K-pop / pop concerts in Korea for the next 6 months by artist or title (any language). Returns concert ids.

  • seoul_places

    Free. The 121 Seoul places (with codes) accepted by seoul_now.

  • request_korea_data

    Free. Ask for Korea data these tools don't cover yet; the most requested is added first.

  • incheon_airport_wait

    Live Incheon Airport departure-hall waiting minutes and queue per hall (T1/T2) and the shortest hall. 10 free calls/day.

  • seoul_subway_now

    Next trains at a Seoul subway station right now (station in English, Japanese or Korean). 10 free calls/day.

  • seoul_now

    Live crowd level, 12-hour crowd forecast and weather for a Seoul place (e.g. Myeongdong, Hongdae). 10 free calls/day.

  • kpop_new_concerts

    Concerts in Korea newly registered or updated since a date (YYYYMMDD, default 7 days), optional artist. 10 free calls/day.

  • korea_festivals

    Festivals and events in Korea from a date (YYYYMMDD). 10 free calls/day.

  • seoul_trip_pack

    Seoul concert trip pack (tickets, venue, last trains, crowd, hotels/food nearby) — paid only: returns how to buy it.

How to connect

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

{
  "mcpServers": {
    "kaia-x402": {
      "type": "http",
      "url": "https://api.k-agentpay.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http k-agentpay https://api.k-agentpay.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://api.k-agentpay.com/mcp as a custom connector in the settings.

OpenAPI spec

10 paths, read 2026-10-27. 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.