Warmerly
An API and 16 mailbox-health webhooks on Agency, and an MCP server on every plan. No CRM sync.
Warmerly
Octopus CRM
One-to-one · Integrations and API
Integrations and API
One row, in depth: what each tool does, the verified numbers, and who each suits.
Octopus CRM details read from its home page, FAQ, feature pages, blog, terms, privacy policy and Chrome Web Store listing on 21 October 2026.
Warmerly
An API and 16 mailbox-health webhooks on Agency, and an MCP server on every plan. No CRM sync.
Octopus CRM
Zapier and HubSpot from the Unlimited tier, and through Zapier to apps such as Google Sheets and Zoho.
The short answer
Integrations and API, in one look.
Warmerly has an API and 16 mailbox-health webhooks on the Agency plan, and an MCP server for AI assistants on every plan, but no Zapier or Make connector of its own and no CRM sync. Octopus CRM pushes campaign actions to Zapier and HubSpot from its Unlimited tier and, through Zapier, to apps such as Google Sheets, Zoho, Asana, Zendesk and Salesforce, and we found no public API or webhooks on its pages. For pushing LinkedIn actions into a CRM, Octopus CRM is ahead. Last checked 21 October 2026.
Octopus CRMOctopus CRM ahead on this row
Zapier and HubSpot from the Unlimited tier, and through Zapier to apps such as Google Sheets and Zoho.
The picture
Drawn side by side.
Where data can go
The routes each side describes
WarmerlyOctopus CRM
Warmerly
API (Agency)16 mailbox-health webhooksMCP server for AI assistantsMailboxes: Gmail, Outlook, Zoho, SMTP
Octopus CRM
ZapierHubSpotGoogle Sheets, Zoho, Asana through ZapierCSV export
Octopus CRM's integration is ticked only on Unlimited. Warmerly has no CRM sync and no Zapier or Make app of its own.
Who has what
As each side's pages and docs state it
WarmerlyOctopus CRM
WarmerlyWarmerly
- Public APIAgency, $179 a month
- WebhooksMailbox health only
- MCPEvery plan
Octopus CRMOctopus CRM
- Zapier and HubSpotUnlimited, $39.99 a month
- Public APINot found
- WebhooksNot found
Octopus CRM's tutorial page lists a video on pushing LinkedIn data to Google Sheets, HubSpot CRM, Asana and Zendesk.
How Warmerly does it
Warmerly, in detail.
An API and 16 mailbox-health webhooks on the Agency plan, an MCP server on every plan, and connections for Gmail, Outlook, Zoho and SMTP and IMAP mailboxes. No CRM sync found.
01
An API, on the Agency plan
API keys and the API need the Agency plan ($179 a month). Keys start with wmv_, go in an X-Api-Key header, and each user can hold up to 10 active keys. The default limit is 60 requests a minute per key, adjustable from 1 to 120. Other plans get a 403 error.
Warmerly product, checked 21 October 2026
02
16 mailbox-health webhooks
Outbound webhooks are signed POSTs about mailbox health. There are 16 event types, such as score_drop, auth_fail, dns_changed, auto_paused and aged_in. They do not cover opens, clicks or replies, and they are Agency only.
Warmerly product, checked 21 October 2026
03
Signed, retried deliveries
Every delivery carries an X-Warmerly-Signature header, the HMAC-SHA256 of the raw body. Each delivery is tried up to 3 times. A subscription switches itself off after 10 consecutive sweeps in which a delivery failed.
Warmerly product, checked 21 October 2026
04
An MCP server on every plan
An MCP server at /api/mcp lets Claude, ChatGPT, Claude Code and Cursor read and act in a workspace after an OAuth 2.1 sign-in. It is on every plan including Free, and no tool can start or resume campaign sending. Reads and writes share 60 calls a minute per connection.
Warmerly product, checked 21 October 2026
05
Mailbox connections
Warmerly connects Gmail, Outlook, Zoho or any SMTP and IMAP mailbox, with Google and Microsoft sign-in. It also has hosted mailboxes.
Warmerly product, checked 21 October 2026
06
Where Warmerly is behind
We found no named CRM connector, no HubSpot or Salesforce sync, and no Zapier or Make app of its own. There is no webhook for a LinkedIn event, a reply or a connection being accepted.
Warmerly product, checked 21 October 2026
How Octopus CRM does it
Octopus CRM, in detail.
Zapier and HubSpot are the only integrations named, and they sit on the Unlimited tier. Through Zapier it says data can reach hundreds of apps.
01
Zapier and HubSpot
The home page says you can push data and actions from LinkedIn to Zapier, Google Docs, HubSpot or other apps, and integrate campaigns with Zapier in a few clicks. The plan table lists Integration with Zapier / Hubspot with a tooltip naming HubSpot CRM, Zoho, Asana, Google Sheets and others.
octopuscrm.io · read 21 October 2026
02
Which tier
Integration with Zapier / Hubspot is ticked only on the Unlimited tier, which is $39.99 a month on the Monthly tab and $24.99 on the Annually tab.
octopuscrm.io/linkedin-mailer · read 21 October 2026
03
For advanced users
The blog says the Zapier integration is created for advanced users and recommends watching the video, given the complexity of the feature. The tutorial page lists a video on LinkedIn to Zapier and HubSpot, naming Google Sheets, HubSpot CRM, Asana and Zendesk.
octopuscrm.io/blog/octopus-for-linkedin-how-it-works · read 21 October 2026
04
Records of each invitation
The auto invite page imagines creating contacts in your favourite CRM, or recording each invited user in a separate Google Sheet, and says data from invite campaigns can go to Google Docs, HubSpot, Asana and Salesforce.
octopuscrm.io/auto-invite-tool-for-linkedin · read 21 October 2026
05
CSV in and out
Lists can be imported from profile URLs and exported to CSV with first name, last name, email, website, LinkedIn URL, company and position, from the Advanced tier.
octopuscrm.io/blog/octopus-for-linkedin-how-it-works · read 21 October 2026
06
What is on the Chrome listing
The Chrome Web Store page names a support email and the website, and says the developer declares data is not sold to third parties outside approved use cases. It names no integration.
chromewebstore.google.com/detail/octopus-all-in-one-linked/afahlliooeebnifondmbhcaghcapepbm · read 21 October 2026
What Octopus CRM does not say
We looked, and found no statement on these. That is about its published pages only, not about the product.
- A public API or API keys
- Webhooks of its own
- A native HubSpot connector described apart from Zapier
- A list of the Zapier triggers and actions it offers
- An MCP server or an AI assistant integration
Where the sources disagree
We report each version rather than pick one.
- The tutorial page names Google Sheets, HubSpot CRM, Asana and Zendesk, the plan tooltip names HubSpot CRM, Zoho, Asana and Google Sheets, and the auto invite page names Google Docs, HubSpot, Asana and Salesforce. We list each as the page that says it, and none of the lists is complete.
The numbers
Only what we could verify.
| Measure | Warmerly | Octopus CRM |
|---|---|---|
| Integrations and API | An API and 16 mailbox-health webhooks on Agency, and an MCP server on every plan. No CRM sync. | Zapier and HubSpot from the Unlimited tier, and through Zapier to apps such as Google Sheets and Zoho. |
| Named integrations | None for CRMs; MCP, Gmail, Outlook, Zoho, SMTP | 2: Zapier and HubSpot |
| Public API | Yes, Agency plan | Not found |
| Webhook events documented | 16, mailbox health | Not found |
| MCP for AI tools | Every plan | Not found |
| Cheapest tier with integrations | Agency, $179 a month, for the API | Unlimited, $39.99 a month |
| Zapier and Make | None of its own found | Zapier, from Unlimited |
In practice
What it means for you.
Our reading of the facts above. Not a promise, and not the only reasonable reading.
To get a LinkedIn lead into a CRM, Octopus CRM is the shorter road
Its Zapier push exists for exactly that. On Warmerly you would use the API on the Agency plan, and no webhook tells you when a LinkedIn invitation was accepted.
The integration sits on the most expensive tier
At $39.99 a month, or $24.99 on the Annually tab, Unlimited costs more than a Warmerly LinkedIn account on its own. Compare the whole tier, since Activity Control and an account manager come with it.
Warmerly's integrations are about mailboxes and assistants
Webhooks tell you when a mailbox's score drops or its DNS changes. The MCP server lets an AI assistant read your workspace. They suit operations and reporting more than CRM sync.
Neither one is a full integration platform
If a CRM sync is a hard requirement, test it on a trial before you pay. Octopus CRM's trial includes Unlimited for 7 days.
Who it suits
Pick the one that fits.
Warmerly
Warmerly is the better fit if
- You want an API and signed webhooks for mailbox health
- You want an AI assistant to read and act in your workspace over MCP
- You connect Gmail, Outlook, Zoho or SMTP mailboxes
- You do not need a CRM sync
Octopus CRM
Octopus CRM is the better fit if
- You want LinkedIn actions pushed to Zapier or HubSpot
- You want to log each invitation in a Google Sheet
- You are willing to set up Zapier yourself
- You can take the Unlimited tier
Questions
Does Octopus CRM integrate with HubSpot?
Yes, from its Unlimited tier at $39.99 a month, alongside Zapier.
Does Octopus CRM have an API?
We found no public API or webhooks on its pages.
Does Warmerly integrate with a CRM?
We found no CRM sync. It has an API and 16 mailbox-health webhooks on the Agency plan, $179 a month.
Does Warmerly have an MCP server?
Yes, an MCP server for AI assistants on every plan.
Sources
- Octopus CRM home page
- Octopus CRM plan table (feature page)
- Octopus CRM: how it works (blog)
- Octopus CRM auto invite page
- Octopus CRM video tutorial
- Octopus on the Chrome Web Store
- Warmerly docs: webhooks
Octopus CRM pages were read on 21 October 2026. Plans and wording change, so check the vendor's own page before you decide. Warmerly details come from the product as it runs today.
More features
- All features
- Main job
- Starting price (per month)
- What each plan unlocks
- Free trial, refunds and cancelling
- LinkedIn actions
- Where it runs
- Daily limits and account safety
- Lead lists and import
- Funnels and sequences
- Statistics and reporting
- Several accounts and agencies
- Email outreach and connect by email
- Warmup and deliverability
See it on your own mailbox.
Connect a mailbox. Warmerly runs alongside whatever you send from now, so you can compare before you move anything.
Free plan, no card. Paid plans: 7-day trial, first charge on day 8.