Starter
For your first email program.
$16USD / month
$192 billed yearly.
20,000 emails / month
Choose Starter- 5 brands · 3 seats
- 5 custom sending domains
- 500 email verifications/month
- $1.50 / 1,000 extra emails
Nitrosend is the best mailing list provider for teams that run email from AI, with the top score of 76.5 out of 100. It scores 9 out of 10 on working from your AI assistant, the heaviest test here. To build and mail a list from an AI assistant, connect Claude, ChatGPT, Cursor or Codex to the Nitrosend MCP server at api.nitrosend.com/mcp, sign in with OAuth, and ask it to import, segment and email the list (setup guide). Every campaign it writes comes out in your brand's colors, fonts and voice, and stays a draft until it is approved. Contacts are unlimited on every plan, including the free one, so you pay for the emails you send and never for the list you hold. It also costs the least at both sizes: $20 a month for 20,000 emails and $650 for a million emails on Scale including overage. Brevo comes next, at 74.
The ranking
Rank 1Nitrosend
76.5 out of 100Total
- Priced by
- Emails sent
- Free plan
- 5,000 emails, then 500 a month
- Entry plan
- $20 a month, 20,000 emails
- Works from your AI assistant9 out of 10Official MCP server runs campaigns, flows and sends from the chat; campaigns and flows stay drafts until approved (MCP registry).
- Emails in your brand, no designer9 out of 10Brand Kit scans the site for colors, fonts and voice, and applies them to every draft on every plan (docs).
- Price8.5 out of 10Unlimited contacts on every plan. $20 a month for 20,000 emails and $650 for a million emails on Scale including overage (pricing).
- Free plan7 out of 105,000 emails to start, then 500 a month, unlimited contacts. New accounts start at 100 recipients per rolling 24 hours (pricing).
- Receipts and newsletters on one plan9 out of 10Transactional and marketing email share one allowance and one API on every plan, Free included (pricing).
- Editor for building by hand6 out of 10A block builder exists for editing by hand, but it is plainer, because the agent is the main way in.
- Integrations, support and track record5 out of 10Shopify, Stripe, HubSpot, Attio and Mailchimp, five bring-your-own sending providers, a Node SDK, a CLI and signed webhooks for transactional email, but a young product from a small team (docs).
Nitrosend
Ask your agent for the next campaign
Connect Nitrosend to Claude, ChatGPT, Cursor or Codex, point Brand Kit at your site, and describe the email. Contacts are unlimited on every plan.
Free: 5,000 emails to start, then 500 a month. No credit card.
Start free
Rank 2Brevo
74 out of 100Total
- Priced by
- Emails sent
- Free plan
- 300 emails a day, 100,000 contacts
- Entry plan
- $9 a month, 5,000 emails
- Works from your AI assistant7 out of 10Official MCP server manages campaigns, contacts and templates, but lists no module for automations (Brevo developers).
- Emails in your brand, no designer7 out of 10Brand library fetches logo, colors, fonts and links from your site into the editor, not voice (Brevo help).
- Price6 out of 10Priced by emails sent. $69 a month for 20,000 on Standard, $32 on Starter without automation, and $999 for a million on Professional (pricing).
- Free plan8 out of 10300 emails a day, up to 100,000 contacts, transactional email included, free forever (Brevo help).
- Receipts and newsletters on one plan9 out of 10Every plan, Free included, has transactional email by API and SMTP in the same volume (pricing FAQ).
- Editor for building by hand8 out of 10Drag-and-drop editor and templates, 4.5 of 5 across 2,722 reviews, Ease of Use the top tag (G2).
- Integrations, support and track record8 out of 10150+ integrations, SMS, WhatsApp and a CRM in one account, phone support on Professional (pricing).
Rank 3MailerLite
61.5 out of 100Total
- Priced by
- Subscribers
- Free plan
- 250 subscribers, 2,500 emails a month
- Entry plan
- $12 a month, 500 subscribers
- Works from your AI assistant8 out of 10Official MCP server with
create_campaign,schedule_campaignandcreate_automationtools (MailerLite help). - Emails in your brand, no designer7 out of 10Brand styles pull logo, colors, fonts and links from your site's URL, but not voice (MailerLite help).
- Price3 out of 10Priced by subscribers. $89 a month at 10,000 on Comfort, and a quote above 200,000, where Comfort is $819 (pricing).
- Free plan5 out of 10250 subscribers and 2,500 emails a month, with 3 automations and knowledge base support (pricing).
- Receipts and newsletters on one plan5 out of 10Transactional email is MailerSend, a separate product the pricing table links out to (pricing).
- Editor for building by hand8 out of 10Three editors on every plan, drag-and-drop included, and 4.6 of 5 across 1,113 reviews (G2).
- Integrations, support and track record7 out of 10100+ integrations, sites and landing pages built in, and 24/7 live chat on Power (pricing).
Rank 4Mailchimp
59 out of 100Total
- Priced by
- Contacts held
- Free plan
- 250 contacts, 500 sends a month
- Entry plan
- $13 a month, 500 contacts
- Works from your AI assistant5 out of 10Its Claude and ChatGPT app drafts campaigns, but Mailchimp's own guide says to finish and send in the web app (Mailchimp).
- Emails in your brand, no designer7 out of 10Brand Kit pulls fonts from your site and generates on-brand layouts, on Essentials and above only (Mailchimp help).
- Price3 out of 10Priced by contacts. $110 a month at 10,000 on Essentials, $135 on Standard, and a quote at 500,000 (pricing).
- Free plan4 out of 10250 contacts and 500 sends a month, with at most 250 a day (Mailchimp help).
- Receipts and newsletters on one plan5 out of 10Transactional is a separate add-on for Standard and Premium, at $20 per 25,000 emails (pricing).
- Editor for building by hand9 out of 10Mature drag-and-drop editor and templates, the most common praise from reviewers, 4.3 of 5 across 12,990 reviews (G2).
- Integrations, support and track record9 out of 10300+ integrations, 24/7 support on paid plans, phone support on Premium, and two decades at scale (pricing).
Rank 5Kit
52 out of 100Total
- Priced by
- Subscribers
- Free plan
- 10,000 subscribers, no automations
- Entry plan
- $39 a month, 1,000 subscribers
- Works from your AI assistant5 out of 10Official Kit MCP drafts broadcasts, but a send only fires when someone clicks Confirm inside the Kit app (Kit help).
- Emails in your brand, no designer4 out of 10Brand settings for name, colors, font, favicon and links are entered by hand, with no import from a website (Kit help).
- Price3 out of 10Priced by subscribers. Creator is $139 a month at 10,000, and the published slider stops at 400,000 subscribers, $2,299, with a demo request above that (pricing).
- Free plan9 out of 10Free for up to 10,000 subscribers with unlimited broadcasts, but no automations, sequences or MCP (pricing).
- Receipts and newsletters on one plan2 out of 10The pricing page lists no transactional email on any plan (pricing).
- Editor for building by hand7 out of 10A block-based editor with starting point, classic and HTML templates, and 4.4 of 5 across 236 reviews (G2).
- Integrations, support and track record7 out of 10100+ direct app integrations, a Kit App Store, and 24/7 email and chat support on paid plans (pricing).
How they compare
How each one scores
Scores out of 10, November 10, 2026| What we compared | Nitrosend | Brevo | MailerLite | Mailchimp | Kit |
|---|---|---|---|---|---|
| Works from your AI assistant20 points | 9 out of 10 | 7 out of 10 | 8 out of 10 | 5 out of 10 | 5 out of 10 |
| Emails in your brand, no designer10 points | 9 out of 10 | 7 out of 10 | 7 out of 10 | 7 out of 10 | 4 out of 10 |
| Price20 points | 8.5 out of 10 | 6 out of 10 | 3 out of 10 | 3 out of 10 | 3 out of 10 |
| Free plan10 points | 7 out of 10 | 8 out of 10 | 5 out of 10 | 4 out of 10 | 9 out of 10 |
| Receipts and newsletters on one plan10 points | 9 out of 10 | 9 out of 10 | 5 out of 10 | 5 out of 10 | 2 out of 10 |
| Editor for building by hand15 points | 6 out of 10 | 8 out of 10 | 8 out of 10 | 9 out of 10 | 7 out of 10 |
| Integrations, support and track record15 points | 5 out of 10 | 8 out of 10 | 7 out of 10 | 9 out of 10 | 7 out of 10 |
| Total scoreout of 100 | 76.5 out of 100,1st | 74 out of 100,2nd | 61.5 out of 100,3rd | 59 out of 100,4th | 52 out of 100,5th |
Here are the seven yes-or-no questions people usually ask before they move a mailing list. A tick means the provider does it, as described on its own pages today. A dash means the answer is not a clean yes or no.
5 services, side by side
Checked November 10, 2026QuestionNitrosendBrevoMailerLiteMailchimpKit
NitrosendBrevoMailerLiteMailchimpKitSend a campaign from the chatCan an agent send a marketing campaign without anyone opening the web app?Nitrosend: Yes.Brevo: Not a yes or no.MailerLite: Yes.Mailchimp: No.Kit: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes, through the MCP server. Campaigns stay drafts until approved. |
| Brevo | Not a yes or no. Its MCP server creates and manages email campaigns. Its docs list no module for automations. |
| MailerLite | Yes. Yes. Its MCP server can create and schedule campaigns. |
| Mailchimp | No. Not yet. Its Claude and ChatGPT app drafts the campaign, and Mailchimp's own guide has you finish and send in the web app. |
| Kit | No. No. The MCP drafts and schedules, but the send fires only after a Confirm click inside the Kit app. |
Official MCP serverIs there a first-party MCP server for marketing email?Nitrosend: Yes.Brevo: Yes.MailerLite: Yes.Mailchimp: Not a yes or no.Kit: Yes.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes. Listed as com.nitrosend/nitrosend on the official MCP registry. |
| Brevo | Yes. Yes, remote-hosted, with 27 modules. |
| MailerLite | Yes. Yes. It can also build automations, with create_automation. |
| Mailchimp | Not a yes or no. Official Claude and ChatGPT app and connectors on Standard and above. The only official MCP server covers Transactional. |
| Kit | Yes. Yes. Kit hosts its own server at app.kit.com/mcp, on paid plans. It is not on the official MCP registry. |
Brand kit from your siteDoes it pick up your logo, fonts and colors from your website?Nitrosend: Yes.Brevo: Yes.MailerLite: Yes.Mailchimp: Yes.Kit: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes. Brand Kit reads colors, fonts and voice from your site. |
| Brevo | Yes. Yes. The brand library fetches logo, colors, fonts and links. |
| MailerLite | Yes. Yes. Brand styles pull logo, colors, fonts and links. |
| Mailchimp | Yes. Yes, on Essentials and above. |
| Kit | No. No. Brand settings are entered by hand. |
Rarely emailed contacts are freeDoes holding a contact you rarely email cost nothing?Nitrosend: Yes.Brevo: Yes.MailerLite: No.Mailchimp: No.Kit: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes. Contacts are unlimited on every plan. |
| Brevo | Yes. Yes. The bill follows emails sent. |
| MailerLite | No. No. The plan is set by subscriber count. |
| Mailchimp | No. No. Every contact counts toward the tier, unsubscribed and non-subscribed ones included. |
| Kit | No. No. Paid plans are set by subscriber count. |
Transactional includedAre receipts and resets in the same plan as newsletters?Nitrosend: Yes.Brevo: Yes.MailerLite: No.Mailchimp: No.Kit: No.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes, on every plan including Free. |
| Brevo | Yes. Yes, on every plan including Free. |
| MailerLite | No. No. Transactional is MailerSend, a separate product. |
| Mailchimp | No. Add-on to Standard or Premium, $20 per 25,000 emails. |
| Kit | No. No. No transactional email is listed on any plan. |
Free plan with no time limitIs there a free plan that does not expire?Nitrosend: Yes.Brevo: Yes.MailerLite: Yes.Mailchimp: Yes.Kit: Yes.
| Service | Answer |
|---|---|
| Nitrosend | Yes. Yes. 5,000 emails to start, then 500 a month. |
| Brevo | Yes. Yes, 300 emails a day. |
| MailerLite | Yes. Yes, with a cap on subscribers and on emails a month. |
| Mailchimp | Yes. Yes, up to 250 contacts. |
| Kit | Yes. Yes. Up to 10,000 subscribers with unlimited broadcasts. |
Mature drag-and-drop editorIs there a polished visual editor for a person building by hand?Nitrosend: Not a yes or no.Brevo: Yes.MailerLite: Yes.Mailchimp: Yes.Kit: Not a yes or no.
| Service | Answer |
|---|---|
| Nitrosend | Not a yes or no. A block builder exists. The agent is the main way in. |
| Brevo | Yes. Yes, with templates and a brand library. |
| MailerLite | Yes. Yes, plus custom HTML and simple editors. |
| Mailchimp | Yes. Yes, and reviewers rate it highly. |
| Kit | Not a yes or no. A block-based editor with templates, not free drag-and-drop. |
Yes answersOut of the questions that have a yes or no for that service6 of 6 yes for Nitrosend6 of 6 yes for Brevo5 of 7 yes for MailerLite3 of 6 yes for Mailchimp2 of 6 yes for Kit
At a glance
5 services, the same 7 tests, 100 points in all. In order: Nitrosend 76.5, Brevo 74, MailerLite 61.5, Mailchimp 59, Kit 52. Nitrosend has the best score on Works from your AI assistant, Emails in your brand, no designer, Price and Receipts and newsletters on one plan. Every price and feature was read on each company's own pages on November 10, 2026.
When another provider is the better pick
Nitrosend does not win every test. Read these before you choose it.
- Pick Brevo if you hold a huge list and mail it occasionally. It bills on emails sent rather than contacts held, and its free plan is 300 emails a day. It beats Nitrosend on free plan, 8 to 7, on the editor, 8 to 6, and on integrations and track record, 8 to 5. Automation starts on Standard, $69 a month at 20,000 emails. The Brevo alternatives page covers where it falls short.
- Pick Kit if you want the biggest free subscriber ceiling. Its free plan holds 10,000 subscribers, and it scores 9 on free plan against Nitrosend's 7. Automations start on Creator, $139 a month at 10,000 subscribers on Kit's pricing page, and its MCP server works on paid plans, though a broadcast only sends when someone clicks Confirm inside the Kit app.
- Pick MailerLite if you want the least friction managing a list. Segments, forms and imports are simple, it scores 8 on the editor, and its MCP server can create and schedule campaigns. Comfort is $89 a month at 10,000 subscribers on MailerLite's pricing page.
- Pick Mailchimp if you already run it and depend on its integrations. It scores 9 on the editor and 9 on integrations and track record, the best here on both. It bills on total contacts, including unsubscribed ones, so a mostly dormant list costs the same as an engaged one. If that is the shape of your bill, the Mailchimp alternatives page is the specific version of this one, and the Nitrosend and Mailchimp comparison scores the two head to head.
What each one costs in 2026
Three of the five charge for the list you hold. Kit, MailerLite and Mailchimp bill for every subscriber or contact, whether you email them or not. Brevo and Nitrosend charge for the emails you send, and Nitrosend does not charge for contacts at all.
What sending costs
List prices, USD, monthly, November 10, 2026| Service | 20,000 emails a month | 1,000,000 emails a month |
|---|---|---|
| Nitrosend (pricing page) | $20Starter, contacts unlimited | $650Scale, contacts unlimited, including overage |
| Brevo (pricing page) | $69Standard, the first plan with automation. Starter is $32 without it | $999Professional. Standard stops at 500,000 emails |
| MailerLite (pricing page) | $89Comfort, 10,000 subscribers | Ask salesEnterprise, by quote. Published tiers stop at 200,000, $819 on Comfort |
| Mailchimp (pricing page) | $110Essentials, flows up to 4 steps. Standard is $135 | Ask salesPremium only, by quote. Published tiers stop at 200,000 contacts |
| Kit (pricing page) | $139Creator, the first plan with automations. Free covers 10,000 without them | Ask salesBy quote. The published slider stops at 400,000 subscribers, $2,299 |
At 20,000 emails a month, a 10,000-contact list emailed twice, Nitrosend is $20. Brevo is $69 on Standard, MailerLite $89, Mailchimp $110 and Kit $139. Brevo's Starter is $32 without automation, and Kit's free plan covers 10,000 subscribers without automations.
At a million emails a month, Nitrosend is $650 and Brevo is $999 on Professional. MailerLite, Mailchimp and Kit publish no price at 500,000 contacts, so the answer is a sales call. Their last published steps are MailerLite at $819 for 200,000, Mailchimp at $1,600 for 200,000 on Premium and Kit at $2,299 for 400,000.
The bigger difference is what the $20 buys. The Nitrosend pricing page puts contacts at unlimited on every plan, so a list that grows while you send the same amount does not grow the bill. Receipts and newsletters draw on the same allowance, so if you would otherwise pay a second service for transactional email, add the two bills together before you compare.
How we scored
Every provider gets a score out of 10 on the same seven tests. Each test is worth a set number of points, 100 in all. Working from your AI assistant and price are worth the most, 20 points each, because that is where email is heading and what a large list pays for. The editor and the track record, where the older providers are strongest, share 30 points, so a provider that is better there gets full credit for it. The assistant test matters more for a list than for a single email, because the list is where one loose instruction does the most harm: it can mail everyone at once, or bring back people who already left.
Each test is a question with one answer per service, checked against the service's own pages on November 10, 2026. A 10 means it does the job fully on its normal plans. A 5 means it does part of it, or only on a higher plan or in a second product.
Works from your AI assistant, 20 points. Can an agent inside Claude, ChatGPT, Cursor or Codex compose a marketing campaign, test it, and send it, with no person opening the web app between the prompt and the send? An approval step the person answers in the chat counts as inside the agent. Moving into the web app to finish does not. Scored on one written rule for every vendor: a first-party server the vendor runs and that can send counts fully; a third-party wrapper (Zapier, Composio, Kanopi, community servers) counts for less; a server that only drafts or reads counts for less than one that sends.
Emails in your brand, no designer, 10 points. Does the product learn your logo, colors, fonts and voice from your own site and apply them to every email it drafts, on the plan most small teams start on?
Price, 20 points. What does email cost each month at 20,000 emails, a 10,000-contact list emailed twice, and at 1,000,000, a 500,000-contact list emailed twice? Scored on list prices in US dollars, paid monthly, at the cheapest plan that holds the contacts, covers the sends and includes automated emails such as a welcome series. Every ranking on this site uses the same fixed scale. At 20,000 emails, $20 or less scores 10, then $25 scores 9, $32 scores 8, $40 scores 7, $50 scores 6, $70 scores 5, $100 scores 4 and $140 scores 3. At 1,000,000, $500 or less scores 10, then $625, $800, $1,000, $1,250, $1,750, $2,500 and $3,500 step down the same way. Anything dearer, or a price given only by quote, scores 2. A free product scores 10. The score is the average of the two.
Free plan, 10 points. How far can a team get on the free plan before it has to pay: contacts, total sends, and the daily ceiling.
Receipts and newsletters on one plan, 10 points. Can receipts, password resets and newsletters go out from one account, on one bill, through one API?
Editor for building by hand, 15 points. For a person who wants to build the email themselves: how mature are the visual editor and the template library?
Integrations, support and track record, 15 points. How many tools does it plug into, what support comes with the plan, and how long has it been doing this at scale?
One thing is not scored: inbox placement. None of these providers publishes a comparable deliverability number, so a score there would be a guess dressed up as a measurement.
The two things called a mailing list provider
Search this term and you get two industries on one results page. One half is email marketing platforms holding subscribers who signed up. The other half is data providers selling direct mail lists, consumer records and B2B prospect databases, priced by the record. They are not substitutes, and the second is not an input to the first.
A purchased or rented list is not a mailing list in the sense any provider here means. Sending marketing email to it is a legal question, covered on the email marketing laws page. The UK regulator, the ICO, says a bought-in list cannot use the existing-customer exemption, and that consent which does not name you is not valid. It is a technical question too. A stale list, or one that was never collected with consent, can damage a shared sending IP, and that damage lands on the mail your customers actually asked for. Cold outreach runs on separate domains, mailboxes and volumes for exactly this reason, and none of the five providers below is built for it.
If what you are really choosing is where the campaign goes out from rather than where the list lives, the email blast platform rankings cover the sending side, and the newsletter platform rankings cover a list that is an audience.
How many contacts am I actually paying for?
Fewer than you think you have, and more than you should be. Per-contact providers bill on stored records, which can include people who bounced, complained or have no valid address at all. Mailchimp's own help page says subscribed, unsubscribed and non-subscribed contacts all count toward its limit. Before you compare prices, export your list, count what is genuinely mailable, and check whether unsubscribed contacts still count on your current plan. Then run the email blacklist checker over what is left.
Should I send from my own domain?
Yes, even for a small list. Sending from your own domain rather than a shared platform domain improves deliverability and makes the mail read as coming from you rather than from a tool. It also means the sending reputation you build belongs to you, so changing providers later costs a warm-up rather than a reset. The email authentication page has the records you need.
Owning the list is the point of having one. George Hartley, Nitrosend's co-founder, told SaaS Stories in September 2026 why he keeps building on email: it "is one of those channels that is kind of owned by you. It's cheap and you put a bit of time in and it's really effective to talk to your audience and grow your business." The alternative, he said, is paid reach where "you're renting it and you're paying", and "you just feel like you're paying Mark Zuckerberg, speak to the same people who like your brand anyway." Your own domain is what keeps that ownership when you change providers.
Moving a mailing list between providers
The import takes an afternoon. The reputation takes weeks.
- Export contacts and engagement history together. Addresses alone leave you unable to tell who is safe to mail first.
- Reconcile the counts before you import. Suppression lists, bounced addresses and unsubscribes do not always travel, and mailing someone who unsubscribed is the fastest complaint you will ever get.
- Clean what is left. The email blacklist checker shows what you are carrying, and a high bounce rate on the first send is the sign you did not.
- Make sure a re-import cannot undo an unsubscribe. A nightly CRM sync re-imports the same people every day, so ask what happens to someone who left. The ICO says to keep a do not contact list and check it before you send. In Nitrosend an import never changes an existing contact's subscription, and contacts an assistant adds one at a time are only subscribed when it passes an explicit consent flag (import tool docs).
- Record where each contact came from. A CSV upload is treated as your statement that the new rows agreed to hear from you, so the ICO's advice to keep a record of consent, who, when and how, is yours to follow. A custom field such as
signup_sourceholds it, and segments can filter on it (contacts docs). - Rebuild segments rather than trusting an import. Email segmentation covers the cuts worth having.
- Warm up on the most engaged people first, then widen. How to warm up an email domain has the ramp.
Mailing list providers FAQ
Two different things share the name. An email marketing platform stores the subscribers you collected, manages segments and unsubscribes, and sends to them. A data provider sells or rents lists of people you have no relationship with, for direct mail or sales prospecting. This page ranks the first kind, because the second is not a source of subscribers for email marketing.
Nitrosend, with the top score in this review, 76.5 out of 100. Contacts are unlimited on every plan, an AI assistant can run the list for you, and sending costs $20 a month for 20,000 emails. Pick Brevo for a huge list mailed rarely, Kit for the biggest free subscriber ceiling, MailerLite for simple list management, and Mailchimp if you depend on its integrations.
It depends on whether the provider charges for holding the list or for sending to it. Nitrosend places no limit on contacts on any plan and charges for sends, $20 a month for 20,000 emails and $650 for a million emails on Scale including overage. Brevo also charges on sends, $69 and $999 on the plans with automation. Kit, MailerLite and Mailchimp charge on contacts held, so a large dormant list is billed every month whether you mail it or not. Checked on November 10, 2026.
On one of the five. Nitrosend's free plan has unlimited contacts, 5,000 emails to start and then 500 a month, with full API, MCP and CLI access and up to 100 commercial recipients per rolling 24 hours on a new account. Brevo's free plan allows 300 emails a day. Kit is free to 10,000 subscribers without automations. MailerLite stops at 250 subscribers and 2,500 emails a month, and Mailchimp at 250 contacts and 500 sends.
A list is a container of contacts you send to. A segment is a rule that selects contacts and can be sent to. A saved view is a filter on the contacts table for looking at, and cannot be sent to. Mixing them up is a common reason a campaign goes to the wrong number of people, which is why the Nitrosend glossary sorts terms by where they appear in the dashboard.
Nitrosend, which scores 9 out of 10 on working from your AI assistant. MailerLite scores 8, Brevo 7, and Kit and Mailchimp 5. Nitrosend, Kit, MailerLite and Brevo publish first-party MCP servers, so Claude or ChatGPT can work with the list directly rather than clicking through a browser. On Nitrosend it can import, segment, suppress and export, every campaign stays a draft until it is approved, and a campaign to every contact needs a second, explicit confirmation. On Kit a broadcast only sends when someone clicks Confirm inside the Kit app, and Mailchimp's own Claude guide ends with you moving into your account to finish and send. What an agent cannot do is give you permission you never collected, so the consent record is still yours to keep.
Connect Claude to the Nitrosend MCP server at api.nitrosend.com/mcp and sign in with OAuth (setup guide). Ask it to import your contacts: small batches go straight in, and a larger file goes up as a CSV. To grow the list, paste Nitrosend's website signup form on your site. It uses a public key that can only add contacts to your lists, drops bots through a hidden field, and can be locked to your own domain. It also gives the same answer whether an address is new or already on the list, the same generic-response rule OWASP sets for login forms, so nobody can use your form to check who you email. Then ask Claude for the campaign. It is saved as a draft, can be test-sent to you first, and goes out once it is approved.
Go deeper
Head to head