Warmerly
API and webhooks on Agency only, MCP on every plan, no named CRM connectors found
Warmerly
Snov.io
One-to-one · API and integrations
API and integrations
One row, in depth: what each tool does, the verified numbers, and who each suits.
Snov.io details read from its pricing page, home page, warm-up page and help centre on 21 October 2026.
Warmerly
API and webhooks on Agency only, MCP on every plan, no named CRM connectors found
Snov.io
REST API, webhooks, MCP and about 47 named integrations including HubSpot and Salesforce
The short answer
API and integrations, in one look.
Warmerly's API and webhooks are on the Agency plan only, its MCP server works on every plan, and we found no named CRM connectors. Snov.io lists a REST API, webhooks, an MCP option and about 47 named integrations, including HubSpot, Pipedrive and Salesforce. Last checked 21 October 2026.
Snov.ioSnov.io ahead on this row
REST API, webhooks, MCP and about 47 named integrations including HubSpot and Salesforce
The picture
Drawn side by side.
How other tools connect
What each product lists
WarmerlySnov.io
Warmerly
Agency planAPI keySigned webhooksMCP on every plan
Snov.io
REST APIWebhooksMCPAbout 47 named integrations
Warmerly's API and webhooks are Agency only. Snov.io's pages do not say which plans include its API.
How Warmerly does it
Warmerly, in detail.
REST API and webhooks on Agency, an MCP server on every plan, no named CRM or automation app.
01
Which plan gets the API
API keys, the API itself and webhooks need the Agency plan ($179 a month, 100 mailboxes). Free, Starter and Growth get a 403 agency_plan_required error. The 7-day Agency trial includes API access. The plan check follows the workspace the request acts on, so a key stops working after a downgrade and works again after an upgrade.
Warmerly product, checked 21 October 2026
02
Rate limits
60 requests a minute per key by default, set between 1 and 120 at creation, and capped at 120 whatever the plan. Over the limit returns 429 too_many_requests. Lead search has an extra limit of 120 requests per 5 minutes per user. We found no separate hourly cap, so 60 a minute works out at most 3,600 an hour and the 120 setting at most 7,200 an hour.
Warmerly product, checked 21 October 2026
03
MCP server on every plan
An MCP server at /api/mcp signs in with OAuth 2.1, needs no API key and works on every plan including Free. 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
04
Webhooks: 16 mailbox health events
Outbound webhooks are signed POSTs about mailbox health. The 16 event types are score_drop, score_floor, oauth_disconnected, auth_fail, dns_changed, smtp_fail, imap_fail, flagged, auto_paused, auto_resumed, manual_pause, aged_in, marked_dead, oauth_refresh_fail, oauth_connected and oauth_reconnected. 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
05
No CRM sync found
We searched the product code and docs for HubSpot, Pipedrive and Salesforce connectors and found them only in lead-data and marketing files, not as integrations. If one exists outside the repo, we did not find it.
Warmerly product, checked 21 October 2026
06
Named areas of the API
The public API docs cover accounts (mailboxes), campaigns, inbox, leads, suppression, verification, warmup and workspaces, plus webhooks and keys.
Warmerly product, checked 21 October 2026
07
Keys carry their own rate limit
A key is created with a rate limit between 1 and 120 requests a minute, 60 by default. Revoking a key is not plan-gated, so a team that downgrades can still revoke from the dashboard.
Warmerly product, checked 21 October 2026
08
Webhook deliveries pause on downgrade
Webhook deliveries pause while the owner is not on Agency, without counting as failures, and an API key stops working for every endpoint after a downgrade.
Warmerly product, checked 21 October 2026
How Snov.io does it
Snov.io, in detail.
A documented REST API, webhooks, MCP, and a long integrations list reached mostly through Zapier and Make.
01
REST API
The API page covers finder and enrichment, verifier, email accounts, warm-up campaigns, multichannel campaigns, prospects, CRM pipelines and webhooks.
snov.io/api · read 21 October 2026
02
Rate limit and auth
60 requests a minute, with a client credentials token that expires after 3,600 seconds.
snov.io/api · read 21 October 2026
03
Limits of the API for accounts
Only SMTP and IMAP accounts are supported through the API, and Gmail and Microsoft OAuth flows are out of scope.
snov.io/api · read 21 October 2026
04
About 47 named integrations
The integrations page lists about 47 named tools across 11 categories, including HubSpot, Salesforce, Pipedrive, Slack, Calendly and Mailchimp, and claims access to over 5,000 apps through Zapier.
snov.io/integrations · read 21 October 2026
05
MCP
A Snov.io MCP option lets AI assistants such as Claude work with Snov.io data and tools.
snov.io/integrations · read 21 October 2026
06
Free plan access
On a free plan you can request test API access by booking a demo.
snov.io/api · read 21 October 2026
07
Credit costs on the API
Email Finder, Verifier and domain search cost credits: 1 credit per green or yellow email found, 1 credit per green or red verification, and the company-to-domain call costs 1 credit per company where a domain is found. Counting emails by domain is free.
snov.io/knowledgebase/what-is-a-credit · read 22 October 2026
08
Page sizes and batch limits
Domain search returns 20 prospects a page and 50 emails a page. A request can carry up to 10 name-and-domain rows, 10 company names, 10 LinkedIn URLs or 10 emails to verify, and up to 10 positions on a prospect search.
snov.io/api · read 22 October 2026
09
Two-step calls and webhooks
Most search methods are asynchronous: a POST returns a task hash and a GET with that hash returns a status of completed or in progress. A webhook_url parameter can push results instead of polling.
snov.io/api · read 22 October 2026
10
Sender accounts by API
A sender account can be created over SMTP and IMAP with a daily sending limit from 1 to 1,200 (default 50) and a delay between emails from 5 to 3,600 seconds. Gmail and Microsoft OAuth are not supported through this method.
snov.io/api · read 22 October 2026
11
Integration categories
The integrations page groups tools into 11 categories, including Sales and CRM (HubSpot, Salesforce, Zoho CRM, Pipedrive, Close and others), Lead generation, Scheduling, Sending (Gmail, Outlook, Microsoft Exchange) and Marketing automation. It names Zapier (over 5,000 apps), Make and Integrately (over 1,000 each) as recommended marketplaces.
snov.io/integrations · read 22 October 2026
12
A survey figure that is not Snov.io's
The integrations page says teams can save up to 25 hours a week with the Zapier integration, and footnotes it as a 2021 Zapier user survey. It is not a Snov.io measurement.
snov.io/integrations · read 22 October 2026
What Snov.io does not say
We looked, and found no statement on these. That is about its published pages only, not about the product.
- Which paid plans include API access
- Which plans include integrations
- How MCP is set up
- Which paid plans include API access
- Webhook event types and retry rules
- Per-plan API rate limits beyond the 60 a minute figure
Where the sources disagree
We report each version rather than pick one.
- The integrations page labels eight tools as native but links several of them to Zapier, and does not define native.
The numbers
Only what we could verify.
| Measure | Warmerly | Snov.io |
|---|---|---|
| API and integrations | API and webhooks on Agency only, MCP on every plan, no named CRM connectors found | REST API, webhooks, MCP and about 47 named integrations including HubSpot and Salesforce |
| API plan | Agency, $179 | Not stated per plan |
| Named integrations | None found | About 47 |
| API rate limit | 60 a minute by default | 60 a minute |
| Webhook event types | 16, all about mailbox health | Not stated in the pages we read |
| Page size on a domain search | Not applicable | 20 prospects, 50 emails |
| Max rows per verification request | Not stated | 10 emails |
| Zapier apps claimed | No Zapier integration found | Over 5,000 |
| Sender daily limit through the API | Set per mailbox in the app, 30 by default for campaigns | 1 to 1,200, default 50 |
| Token lifetime | Key until revoked | 3,600 seconds |
In practice
What it means for you.
Our reading of the facts above. Not a promise, and not the only reasonable reading.
Where Snov.io is ahead
Its integrations list is long and includes the CRMs most teams already use. With Warmerly you reach other tools through the Agency API, webhooks or the MCP server.
A small script against Snov.io
Verifying 1,000 addresses over the API is 100 requests of 10, which at 60 requests a minute takes under two minutes of calls, and costs up to 1,000 credits, the whole Starter allowance. Our arithmetic from the rate limit and the 10 per request cap.
A health monitor against Warmerly
A subscription to the 16 mailbox event types can post to your own tool when a score drops or a mailbox pauses. It needs Agency at $179 a month, which is the cost of using any of it.
If your stack lives in a CRM
HubSpot, Pipedrive and Salesforce are named on Snov.io's integrations page, and Zapier widens that. On Warmerly the route is the Agency API, webhooks or the MCP server, so a team that wants a ready connector should start with Snov.io.
If an AI assistant is the interface
Snov.io lists an MCP option. Warmerly's MCP server needs no API key, signs in with OAuth 2.1 and works on every plan including Free, with 60 calls a minute per connection. Neither page says the two do the same jobs.
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 events pushed to your own system
- You want an AI assistant to read your account on any plan, including Free
- You are happy to build against a REST API rather than use ready connectors
Snov.io
Snov.io is the better fit if
- You want ready-made HubSpot, Pipedrive or Salesforce connections
- You need an API on a lower price than $179
- You want ready connectors to HubSpot, Pipedrive, Salesforce and Zapier
- You want finder and verifier results by API, billed in credits
- You want an API on a lower plan than Warmerly's Agency
Questions
Does Warmerly have a Zapier or HubSpot integration?
We found no named CRM or automation app. The REST API and webhooks need the Agency plan, and the MCP server works on every plan.
Is Snov.io's API on the free plan?
Not generally. Its pages say free plans can request test access by booking a demo. Warmerly's API needs Agency, with a 7-day Agency trial that includes it.
How fast can I call each API?
Snov.io lists 60 requests a minute. Warmerly's default is 60 a minute per key, adjustable from 1 to 120 and capped at 120 on every plan.
Does either send mail through the API?
Snov.io's docs describe sender account setup, warm-up campaigns and multichannel campaigns over the API. Warmerly's docs list campaigns and inbox endpoints, and its MCP server cannot start or resume campaign sending.
Can I connect Gmail to Snov.io over the API?
Only by SMTP and IMAP. The docs say Gmail and Microsoft OAuth are not supported through the API method.
Sources
Snov.io 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
- Warmup model
- Starting price (per month)
- Mailboxes warmed on the entry plan
- Warming 25 mailboxes
- Warming 26 to 100 mailboxes
- How warmup works
- Warmup volume per mailbox
- Credits
- Email finder and verification
- Authentication and placement checks
- Campaign sending
- CRM
- LinkedIn automation price
- Free tier
- Annual discount
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.