Manage Webex spaces, messages, memberships, teams and webhooks — the Webex Messaging API.
Webex ships in the w6w first-party pack. It declares 34 actions, 2 health checks, and the host runs its code in a sandbox that never sees the credential.
io.w6w.webexCisco Webex is the messaging, meeting and calling platform behind Webex App and Webex Calling. This app covers the Webex Messaging REST API: rooms (spaces) — creating, reading, updating, deleting and listing them; messages — posting, editing, reading, deleting and listing, including direct 1:1 threads; memberships — adding, updating, removing and listing who belongs to a room; teams and team memberships — the same lifecycle one level up, for a named group of rooms; and webhooks — subscribing to the resource/event pairs Webex fires so a workflow can react instead of poll.
A handful of read-only People lookups round it out (your own profile, another person’s profile, and organization search) — Webex’s own guidance is that People is being superseded by SCIM 2.0 for provisioning, so this app does not add, update or remove people; it only reads.
A fit for turning an external event into a Webex space with the right people in it and a first message posted, keeping a team’s space roster in sync with some other system of record, or wiring a webhook so a workflow starts the moment someone posts, joins or leaves.
Three routes to the same 34 actions. The Workflow tab is generated from Webex'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.
create-message Post a message to a room, a thread (via Parent message ID), or a 1:1 with a person — set exactly one destination.
create-team Create a team. The creator's room (space) list becomes the team's default space.
create-webhook Subscribe a target URL to a resource/event pair. Creating a webhook requires 'read' scope on the resource it is for.
delete-membership Delete a room membership, removing the person from the room.
delete-team-membership Delete a team membership, removing the person from the team.
edit-message Edit the text of a message this connection's user authored. A full replace, so Room ID is required even though it does not change.
get-my-own-details Get the profile of the person this connection authenticates as.
list-direct-messages List the messages in a 1:1 room, by the other person's ID or email — without needing the room ID.
list-people Search for people in the organization. A non-admin token must set Email or Display name.
list-webhooks List webhooks the connected person created, or the org's admin-level webhooks.
update-membership Update a room membership's moderator flag and hidden state. Webex requires both.
update-room Update a room's title or settings. A full replace — Webex requires `title` even when only changing another field.
update-team Rename a team or change its description. A full replace — Webex requires `name` even when only the description changes.
update-webhook Update a webhook's name or target URL, or reactivate one Webex disabled after repeated delivery failures. A full replace — Webex requires Name and Target URL even when only reactivating.
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 Webex's real ids.
{
"manifestVersion": "2",
"name": "webex-example",
"steps": [
{
"id": "create-membership",
"uses": {
"app": "io.w6w.webex",
"action": "create-membership",
"connection": "conn_YOUR_CONNECTION_ID"
},
"with": {
"roomId": "<roomId>"
}
}
]
}create-membership create-message create-room create-team create-team-membership +29 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 Webex, 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 Webex. 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: "create-membership",
payload: {
roomId: "<value>",
// personId: "<value>",
// personEmail: "<value>",
// isModerator: "<value>",
},
});
if (isActionRun(envelope)) console.log(envelope.value); npm install -g @w6w/cli w6w run conn_YOUR_CONNECTION_ID --action create-membership --payload '{"roomId":"<value>"}' Give an AI agent Webex — without giving it Webex'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.webex#create-membership",
"input": {
"roomId": "<roomId>"
}
}
}
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 Webex 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.
Webex'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. Webex itself is MIT, and the runtime that executes it is source-available (FSL).
Webex declares its own checks, so its health is a property of the app rather than something the host guesses at.
Open incidents/maintenance on status.webex.com's general history feed. Covers all Webex products on one page — no component is scoped to just the Messaging REST API this app calls — so this is informational context, not a verdict on webexapis.com. Unauthenticated and unsigned; fetched and parsed by the host.