Generate documents from DocuMerge templates and routes, manage their fields and delivery methods, and run its PDF tools from a workflow.
DocuMerge ships in the w6w first-party pack. It declares 36 actions, 2 health checks, and the host runs its code in a sandbox that never sees the credential.
io.w6w.documergeDocuMerge generates documents (PDF, Word, Excel, HTML, images, email) by merging data into templates. This app lets a workflow drive it end to end.
It manages documents (templates) and routes (packs that merge several documents into one): list, fetch, create, update, copy and delete them, and manage each one’s merge fields and delivery methods (webhook, email and so on). A merge is queued by the document’s or route’s key with the field values to merge in, and DocuMerge delivers the result through the configured delivery methods.
It also exposes the PDF tools: combine several files into one PDF or Word file, compress, convert, password-protect and split PDFs. Tool results come back as base64 so a later step can store or send them.
Three routes to the same 36 actions. The Workflow tab is generated from DocuMerge'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.
document-create Create a document (merge template). Name, template type and output format are required.
document-delivery-method-create Add a delivery method (webhook, email, …) to a document.
document-delivery-method-delete Remove a delivery method from a document.
document-delivery-method-list List where a document's merge results are delivered.
document-delivery-method-update Change a document delivery method's type or settings.
document-file-get Fetch the file record (including a temporary download URL) of a document.
document-merge Queue a merge of a document by its merge key. The merge runs asynchronously; results go to the document's delivery methods.
document-update Replace a document's settings. The vendor requires name, type and output on every update.
route-delivery-method-list List where a route's merge results are delivered.
route-delivery-method-update Change a route delivery method's type or settings.
route-merge Queue a merge of a route by its key. Asynchronous; results go to the route's delivery methods.
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 DocuMerge's real ids.
{
"manifestVersion": "2",
"name": "documerge-example",
"steps": [
{
"id": "document-copy",
"uses": {
"app": "io.w6w.documerge",
"action": "document-copy",
"connection": "conn_YOUR_CONNECTION_ID"
},
"with": {
"documentId": "<documentId>",
"name": "<name>"
}
}
]
}document-copy document-create document-delivery-method-create document-delivery-method-list document-delivery-method-update +31 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 DocuMerge, 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 DocuMerge. 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: "document-copy",
payload: {
documentId: "<value>",
name: "<value>",
},
});
if (isActionRun(envelope)) console.log(envelope.value); npm install -g @w6w/cli w6w run conn_YOUR_CONNECTION_ID --action document-copy --payload '{"documentId":"<value>","name":"<value>"}' Give an AI agent DocuMerge — without giving it DocuMerge'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.documerge#document-copy",
"input": {
"documentId": "<documentId>",
"name": "<name>"
}
}
}
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 DocuMerge 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.
DocuMerge'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. DocuMerge itself is MIT, and the runtime that executes it is source-available (FSL).
DocuMerge declares its own checks, so its health is a property of the app rather than something the host guesses at.
Calls GET /api/documents without a token and reads DocuMerge's own answer. The documented 401 "Unauthenticated." body proves the API is serving.