Mcp Sequencer Event Poller

com.mambabuiltPublished by mambabuilt.comv1.0.2Updated Nov 7, 2026

Replies, bounces, meetings, and LinkedIn replies from Instantly, Smartlead, HeyReach, and lemlist

The publisher's own server: Sequencer

Overview

AI-generated overview

Reads replies, bounces, unsubscribes, meetings and LinkedIn replies from your own Instantly, Smartlead, HeyReach and lemlist accounts via an Apify actor.

What you can do
  • Poll sequencer events: read replies, bounces, unsubscribes, meetings booked, interest changes and LinkedIn replies from your own Instantly, Smartlead, HeyReach and lemlist accounts for a chosen time window.
  • Filter and scope the pull: pick event types, an exact UTC window or look-back hours, specific campaign IDs per vendor, page and event limits, and an only-new mode that skips events an earlier run already returned.
  • Get one flat table: each row carries vendor, event type, time, lead email, name and company, campaign and reply text where the vendor returns it, plus a free summary row with per-vendor counts and read/skipped/refused status.
When to use it
Useful when you want an assistant to report on outbound email and LinkedIn outreach activity across several sequencers without logging into each one, for example daily reply or bounce reviews, weekly unsubscribe summaries, or checking who replied on LinkedIn since a given date.
Requirements
Runs locally as an npm package over stdio; needs Node.js 18 or newer and an Apify account with an API token in APIFY_TOKEN. At least one vendor key is needed for real data: INSTANTLY_API_KEY (API v2, read scope, paid Instantly plan), SMARTLEAD_API_KEY, HEYREACH_API_KEY or LEMLIST_API_KEY. Network access to Apify and the vendor APIs.
Before you install
Requires several third-party credentials: the Apify token and your own sequencer API keys, which the server sends in the Apify run input for each run. Runs are billed per event row and per run start to your Apify account, so set max_charge_usd to cap spending. Lead emails, names, companies and reply text are sent to Apify and returned to the assistant. The actor is documented as read-only and never sends or edits anything in a sequencer.

Installation

In SourceWeft

  1. Open Mcp Sequencer Event Poller in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

Sequencer Event Poller MCP Server

[Glama score] [MCP Registry] [npm version] [npm downloads] [license] [mcpservers.org]

[Sequencer Event Poller MCP server]

An MCP server for the Mamba Labs Sequencer Event Poller actor on Apify. It reads replies, bounces, unsubscribes, meetings booked, interest changes, and LinkedIn replies from your own Instantly, Smartlead, HeyReach, and lemlist accounts, and returns one flat row per event.

What's Inside

What it does

Pick a time window, for example the last 24 hours, and get every event from the sequencers you have keys for in one table: vendor, event type, when it happened, the lead's email, name, and company, the campaign, and the reply text where the vendor returns it. One free run summary row gives counts per vendor and event type and says whether each vendor was read, skipped, or refused the key. With only new events on, a scheduled run returns only events an earlier run has not returned.

The actor only reads. It never creates, edits, pauses, or sends anything in a sequencer, and it never creates a campaign.

All of the work runs on Apify. This package is a thin client that starts the actor run, waits for it, and hands back the dataset rows.

Quick start

You need Node.js 18 or newer and an Apify account with an API token.

Add this to your Claude Desktop config (claude_desktop_config.json), Cursor, or any MCP client:

json
{  "mcpServers": {    "mamba-sequencer-event-poller": {      "command": "npx",      "args": [        "-y",        "@mambalabsdev/mcp-sequencer-event-poller"      ],      "env": {        "APIFY_TOKEN": "your-apify-token",        "LEMLIST_API_KEY": "your-lemlist-key"      }    }  }}

Restart the client. The poll_sequencer_events tool appears.

Prerequisites

  • Node.js 18 or newer.
  • An Apify API token from console.apify.com/account/integrations, set as APIFY_TOKEN. The server lists its tool without a token; a call needs one.
  • At least one of your own vendor keys: INSTANTLY_API_KEY (API v2, read scope; Instantly API access needs a paid Instantly plan), SMARTLEAD_API_KEY, HEYREACH_API_KEY, LEMLIST_API_KEY. With none set, a call returns one summary row that says no key was given.

Example prompts

  • "Which leads replied in Smartlead or lemlist in the last 24 hours?"
  • "List every bounce and unsubscribe across my sequencers this week."
  • "Who replied on LinkedIn through HeyReach since Monday, and what did they say?"

Tool

poll_sequencer_events. One tool. Example arguments:

json
{  "since_hours": "24",  "event_types": ["reply", "linkedin_reply", "bounce", "meeting_booked"]}

Inputs

Every buyer facing input of the actor except the four vendor keys, which are read from this server's environment, never from tool arguments. Omitted inputs take the actor's own defaults. Numbers and yes or no options are sent as text ("24", "true"), which is what the actor accepts; a value that does not parse comes back as one free row that names the field.

InputTypeRequiredDescription
since_hoursstringnoLook back this many hours, 1 to 2160, as text such as "24". Default 24.
since, untilstringnoOptional exact window in UTC.
event_typesarraynoAny of reply, linkedin_reply, bounce, unsubscribe, meeting_booked, interested, not_interested, out_of_office, connection_accepted, open, click.
only_newstringno"true" or "false". Skip events an earlier run returned. Default true.
state_keystringnoName for the only new events memory.
instantly_campaign_ids, smartlead_campaign_ids, heyreach_campaign_ids, lemlist_campaign_idsarraynoRead only these campaigns.
max_pages_per_querystringnoPages of 100 records per vendor query, 1 to 100, as text. Default 20.
max_eventsstringnoEvent rows per run, up to 50000, as text. Default 5000.
max_charge_usdstringnoOptional cost cap for the run.

Pricing

Pay per event on Apify, billed to your Apify account. Prices in USD.

EventFree planBronzeSilverGold
event-row, per sequencer event$0.008$0.0076$0.0072$0.0068
apify-actor-start, per run start$0.001$0.001$0.001$0.001

The run summary row and already delivered events are free. Mamba Labs pays the platform costs of the run.

Your keys

The actor stores no key. Each vendor key is your own: this server reads it from its environment and sends it in the run input of that run only. The vendor API calls run on your own vendor account, under that vendor's plan and rate limits.

Full actor documentation

apify.com/mambalabs/sequencer-event-poller

License

MIT. See LICENSE.

Source: README.md at commit b42e18f

Tools

1

poll_sequencer_events

Poll sequencer events

Read replies, bounces, unsubscribes, meetings booked, interest changes, and LinkedIn replies from your own Instantly, Smartlead, HeyReach, and lemlist accounts for a time window. Returns one flat row per event (vendor, event type, time, lead email and name, company, campaign, reply text where the vendor returns it) plus one free run summary row with counts and the status of each vendor. Vendor keys are read from this server's environment (INSTANTLY_API_KEY, SMARTLEAD_API_KEY, HEYREACH_API_KEY, LEMLIST_API_KEY); vendors with no key are skipped. Read-only: it never creates, edits, pauses, or sends anything in a sequencer. A run that does not succeed is returned as an error with its run ID. Requires an APIFY_TOKEN and is billed per event row.

Parameterssinceuntilonly_newstate_keymax_eventsevent_typessince_hoursmax_charge_usdmax_pages_per_querylemlist_campaign_idsheyreach_campaign_idsinstantly_campaign_ids+1 more

Version history

3
  1. v1.0.2LatestNov 5, 2026
  2. v1.0.1Oct 29, 2026
  3. v1.0.0Oct 25, 2026

Score

90% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts
  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

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