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Warmerly Skylead
One-to-one · Integrations and API

Integrations and API

One row, in depth: what each tool does, the verified numbers, and who each suits.

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Skylead details read from its pricing page, terms, privacy policy and feature pages on 21 October 2026.

Warmerly

The API and mailbox-health webhooks on the Agency plan, an MCP server on every plan; no CRM sync found.

Skylead

Real-time sync with HubSpot, Pipedrive and Salesforce, plus Zapier, Make, webhooks and an API with 60+ endpoints.

The short answer

Integrations and API, in one look.

Warmerly has an API and mailbox-health webhooks on the Agency plan and an MCP server on every plan, with no CRM sync found. Skylead lists real-time sync with HubSpot, Pipedrive and Salesforce, Zapier, Make, custom webhooks and an API with 60+ endpoints. Skylead is ahead. Last checked 21 October 2026.

Warmerly

The API and mailbox-health webhooks on the Agency plan, an MCP server on every plan; no CRM sync found.

SkyleadSkylead ahead on this row

Real-time sync with HubSpot, Pipedrive and Salesforce, plus Zapier, Make, webhooks and an API with 60+ endpoints.

The picture

Drawn side by side.

What connects

Integrations each side lists

WarmerlySkylead
WarmerlyAPI, webhooks and MCP
  • CRM syncNot found
  • APIAgency plan
  • Webhooks16 mailbox-health events
  • MCP serverEvery plan
SkyleadCRM sync and an API
  • HubSpotReal-time sync
  • PipedriveReal-time sync
  • SalesforceReal-time sync
  • Zapier, Make, webhooksListed
  • API60+ endpoints

Warmerly's webhooks are about mailbox health and do not cover opens, clicks or replies. Skylead's pages do not say which fields sync or in which direction.

The shape of each

In one line

WarmerlySkylead

An API and an MCP server

  • CRM sync: Not found
  • Automation tools: Through the API, on the Agency plan
  • API: Agency plan, 60 requests a minute per key by default

Three CRMs and an API

  • CRM sync: HubSpot, Pipedrive and Salesforce
  • Automation tools: Zapier, Make and custom webhooks
  • API: On every plan, 60+ endpoints

We found no MCP server or AI assistant connection on Skylead's pages.

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 to https://app.warmerly.com/api/v1, 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. Free, Starter and Growth get a 403 agency_plan_required 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. Agency only, and each user can hold up to 10 subscriptions.

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 failed event is not redelivered later, and 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 needs no API key. Reads and writes share 60 calls a minute per connection, and no tool can start or resume campaign sending.

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 native HubSpot, Pipedrive or Salesforce sync and no Zapier or Make connector. Warmerly's docs say tools like Zapier can use the API with a key, which is an Agency feature. Skylead lists all of these.

Warmerly product, checked 21 October 2026

07

Keys are shown once and stored as hashes

An API key is shown once when created and stored only in hashed form, so a lost key is replaced, not recovered. Keys are listed and revocable one by one.

Warmerly product, checked 21 October 2026

08

Plan test for the API

A free trial of the Agency plan includes API access, so an integration can be tried before paying. On any other plan the API answers 403 agency_plan_required.

Warmerly product, checked 21 October 2026

09

CSV import for leads

Leads can be imported into a campaign from a CSV file, which is the practical route for data that lives in a CRM today.

Warmerly product, checked 21 October 2026

How Skylead does it

Skylead, in detail.

Native sync with three CRMs, plus Zapier, Make, webhooks and an API.

01

Three CRMs, in real time

The CRM page says Skylead can update or create leads in HubSpot, Pipedrive or Salesforce the moment a prospect receives a message or replies. It says setup takes three clicks.

skylead.io/crm-integration · read 21 October 2026

02

Zapier, Make and webhooks

The pricing table lists webhooks as Zapier, Make or a custom webhook, ticked on every plan.

skylead.io/pricing · read 21 October 2026

03

An API with 60+ endpoints

The CRM page says you can push data through Zapier, Make or an API with 60+ endpoints. The table ticks API on every plan.

skylead.io/crm-integration · read 21 October 2026

04

A video partner

The table lists a partnership with Sendspark for dynamic video messages.

skylead.io/pricing · read 21 October 2026

05

What the CRM page promises

It says Skylead will automatically create or update a lead in your CRM as soon as you send a message or receive a reply, and that this avoids manual update and import. It says setup takes three clicks and gives no steps.

skylead.io/crm-integration · read 21 October 2026

06

'Any other CRM or workflow'

The page says other tools can be reached through Zapier, Make or the API. Only three CRMs are named as direct integrations.

skylead.io/crm-integration · read 21 October 2026

07

Rows in the pricing table

The table lists three related rows: Integrations & API, Webhooks and API with a documentation link, plus Real-time sync with HubSpot, Pipedrive & Salesforce.

skylead.io/pricing · read 21 October 2026

08

Support for setup

The CRM page offers a chat button and a link to a Facebook community group for questions.

skylead.io/crm-integration · read 21 October 2026

What Skylead does not say

We looked, and found no statement on these. That is about its published pages only, not about the product.

  • API rate limits
  • Which fields sync and in which direction
  • How duplicates and failures are handled
  • An MCP server or AI assistant connection
  • Whether CRM changes flow back into Skylead
  • Which fields, objects or activities sync, such as contacts, companies or deals
  • Sync frequency beyond the word real-time
  • Zapier or Make triggers and actions
  • Authentication method for the API

Where the sources disagree

We report each version rather than pick one.

  • Skylead's CRM page does not mention webhooks, and its pricing table lists them. We use the pricing table.
The numbers

Only what we could verify.

Integrations and API: Warmerly and Skylead side by side. Warmerly is in the first column.
MeasureWarmerlySkylead
Integrations and APIThe API and mailbox-health webhooks on the Agency plan, an MCP server on every plan; no CRM sync found.Real-time sync with HubSpot, Pipedrive and Salesforce, plus Zapier, Make, webhooks and an API with 60+ endpoints.
CRM syncNot foundHubSpot, Pipedrive and Salesforce
Automation toolsThrough the API, on the Agency planZapier, Make and custom webhooks
APIAgency plan, 60 requests a minute per key by defaultOn every plan, 60+ endpoints
AI assistantsAn MCP server on every planNot stated
Named CRMsNone3 (HubSpot, Pipedrive, Salesforce)
Setup claimedNot applicableThree clicks, as it states
Webhook events16 mailbox-health event types, none for opens, clicks or repliesListed, events not described
API calls allowed60 requests a minute per key by default, 1 to 120Not stated
API keys per userUp to 10 active keysNot stated
In practice

What it means for you.

Our reading of the facts above. Not a promise, and not the only reasonable reading.

1

If you live in a CRM, Skylead saves work

Real-time sync with HubSpot, Pipedrive or Salesforce is listed. With Warmerly you would build it with the API or a tool on top.

2

Warmerly's API is on one plan

API keys need the Agency plan. Skylead lists its API on every plan.

3

Warmerly has an MCP server

Claude, ChatGPT and Cursor can read and act in a workspace on every plan. Skylead's pages do not mention one.

4

A CRM-led team, a worked example

A team that logs every reply in HubSpot would, with Skylead, turn on the listed sync. With Warmerly it would build its own flow on the API, which needs the Agency plan at $179 a month, and Warmerly's webhooks do not carry replies, so the flow would need another way to learn about them. That is real work, and the reason Skylead is ahead here.

5

What the 16 webhook events are for

Events such as score_drop, auth_fail, dns_changed and auto_paused tell your own tools when a mailbox needs attention. They are for monitoring deliverability, not for moving leads between systems.

6

AI assistants

Warmerly's MCP server lets Claude, ChatGPT, Claude Code and Cursor read and act in a workspace after an OAuth 2.1 sign-in, on every plan including Free. Its tools cannot start or resume campaign sending, which is a deliberate limit. Skylead's pages do not describe an equivalent.

7

Rate limits as arithmetic

At the default 60 requests a minute per key, one key can make 60 x 60 = 3,600 requests an hour. Skylead states no rate limit, so there is nothing to compare it with.

Who it suits

Pick the one that fits.

Warmerly

Warmerly is the better fit if

  • You want an MCP server on every plan, including Free
  • You want mailbox-health webhooks for your own tooling
  • You are happy to connect other tools through the API
  • You want your own tools told when a mailbox needs attention
Skylead

Skylead is the better fit if

  • You want native HubSpot, Pipedrive or Salesforce sync
  • You use Zapier or Make and want them listed
  • You want an API on every plan
Questions
Which CRMs does Skylead sync with?

HubSpot, Pipedrive and Salesforce, in real time. It claims setup in three clicks.

Does Warmerly have a CRM integration?

No CRM sync was found. You connect through the Agency API, 16 mailbox health webhook events and an MCP server on every plan.

Which plan includes the API?

Skylead lists its API, with 60+ endpoints, on every plan. Warmerly's API is on Agency, at 60 requests a minute per key by default.

Does Warmerly webhook opens, clicks or replies?

No. Its 16 webhook events cover mailbox health only.

Sources

Skylead 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.

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