Manage KlickTipp contacts, tags, data fields and opt-in processes, and sign contacts in through a Listbuilding API key.
KlickTipp ships in the w6w first-party pack. It declares 25 actions, 2 health checks, and the host runs its code in a sandbox that never sees the credential.
io.w6w.klicktippKlickTipp is a German email-marketing and marketing-automation platform. This app covers its documented Management API — adding, updating, searching, tagging, untagging, unsubscribing and deleting contacts, reading them singly, in bulk or as a changed-since feed, managing tags, listing data fields and opt-in processes — and its Listbuilding API for signing a contact in, out or off through a Listbuilding API key.
A connection is either an API user’s username and password (Management actions) or a Listbuilding API key (the three Listbuilding actions). API access needs a KlickTipp Premium plan or higher.
Three routes to the same 25 actions. The Workflow tab is generated from KlickTipp's own manifest and carries its real ids, so it is copy-pasteable; the Code and CLI examples are the same call for any action on any app, so every app-specific value in them is a blank you fill in.
field-list List the key and name (and optionally type) of every contact data field.
listbuilding-signin Add or update a contact through a Listbuilding API key, applying the key's tag and opt-in process. Needs a Listbuilding API Key connection.
listbuilding-signoff Unsubscribe a contact through a Listbuilding API key so it receives no further communication. Needs a Listbuilding API Key connection.
listbuilding-signout Remove the key's tag from a contact through a Listbuilding API key. Needs a Listbuilding API Key connection.
optin-list List the ID and name of every opt-in process. The unnamed entry is the default double opt-in.
optin-redirect Look up the redirect URL of an opt-in process for a given contact email.
subscriber-bulk-get Return the complete records of up to 200 contacts by ID in one call.
subscriber-changed List the IDs of contacts changed since a Unix timestamp, one cursor page at a time.
subscriber-list List contact IDs, filtered by subscription and bounce status, one cursor page at a time.
subscriber-tagged Return the contacts carrying a tag, with the time each got it.
subscriber-unsubscribe Unsubscribe a contact by email so it receives no further communication.
subscriber-upsert Add a contact, or update the one with the same email. Triggers the opt-in process, which may email the contact.
tag-delete Delete a manual tag and remove it from every contact. Smart tags cannot be deleted.
A workflow step names the app and the action, and the editor fills in the
connection when you pick one. This is the Step shape from the
workflow spec, carrying KlickTipp's real ids.
{
"manifestVersion": "2",
"name": "klicktipp-example",
"steps": [
{
"id": "field-get",
"uses": {
"app": "io.w6w.klicktipp",
"action": "field-get",
"connection": "conn_YOUR_CONNECTION_ID"
},
"with": {
"fieldId": "<fieldId>"
}
}
]
}field-get field-list listbuilding-signin listbuilding-signoff listbuilding-signout +20 more actions available
Every app-specific value here is a blank you have to fill in. An
app action is reached through the connection that authenticates it, so the
address is a connection id, not the app id — and connections belong to your account,
so a public page cannot know yours. Create one for KlickTipp, then fill in
the three blanks: conn_YOUR_CONNECTION_ID, the action key, and the
parameters that action declares. The call itself is real — the shape is transcribed
from the studio's own snippet builder, which prints the same kind of blanks — but
nothing in it is specific to KlickTipp. The Workflow tab is where this app's
real ids are.
npm install @w6w/sdkyarn add @w6w/sdkpnpm add @w6w/sdkdeno add npm:@w6w/sdkimport { W6wClient, isActionRun } from "@w6w/sdk";
// Reads W6W_BASE_URL and W6W_TOKEN from the environment when omitted.
const client = new W6wClient();
const envelope = await client.run({
urn: "conn_YOUR_CONNECTION_ID",
action: "field-get",
payload: {
fieldId: "<value>",
// detail: "<value>",
},
});
if (isActionRun(envelope)) console.log(envelope.value); npm install -g @w6w/cli w6w run conn_YOUR_CONNECTION_ID --action field-get --payload '{"fieldId":"<value>"}' Give an AI agent KlickTipp — without giving it KlickTipp's credentials. One MCP endpoint exposes every app, function and workflow the caller is entitled to, as tools it can discover and run. Access is granted per team while we onboard.
One tool call{
"name": "w6w_invoke",
"arguments": {
"ref": "app:io.w6w.klicktipp#field-get",
"input": {
"fieldId": "<fieldId>"
}
}
}
Every tool names its target with a single ref. The
app: form above doesn't name a connection at all — the
host resolves which of the caller's KlickTipp connections to sign
with, and refuses rather than guesses when the answer is ambiguous.
The token is attached host-side, at the moment of the call. It is never a tool argument, never in the model's context, and never in a transcript — so a prompt injection has nothing to exfiltrate.
Tools are derived per end user from what that person has actually connected and is entitled to — not one shared bot identity carrying the union of everyone's access.
Multi-step work runs on the workflow engine and returns a run handle the agent can poll — retries, branching and state survive the conversation that started them.
KlickTipp's declared health checks are on the surface too, so an agent can tell "the vendor is down" from "your credential expired" before it burns a retry on either.
The MCP surface is part of the hosted platform. KlickTipp itself is MIT, and the runtime that executes it is source-available (FSL).
KlickTipp declares its own checks, so its health is a property of the app rather than something the host guesses at.
Component status from klicktipp-status.com. The verdict is the worse of the API and Login components; website, app, email delivery, link tracking and the rest are reported as detail.
Unauthenticated GET /tag against api.klicktipp.com. Sends no session or key — a schema-correct 'API access denied' proves the API is answering.