Nitrosend is the better choice than ActiveCampaign on five of the seven things this review compares: running email from an AI agent, on-brand design without a designer, cost as the list grows, the free plan, and sending transactional and marketing email on one plan. ActiveCampaign is a mature automation platform that a person runs from a web app and pays for by the contact. Nitrosend is built so an agent inside Claude, ChatGPT, Cursor or Codex builds the flows and sends the email, and it is priced by the emails sent, so 10,000 contacts cost $20 a month rather than $189. Nitrosend leads 77.5 to 54.5 out of 100. To send email from an AI agent with Nitrosend, add its MCP server at api.nitrosend.com/mcp to Claude, ChatGPT, Cursor or Codex and sign in with OAuth. The agent can then draft campaigns and flows, which stay drafts until they are approved, and a single transactional email sends on the call.
Nitrosend vs ActiveCampaign, compared
The quick version: eight yes-or-no questions a team usually asks when choosing between the two. A tick means the product does it as described on its own pages today. A dash means the honest answer is not a yes or a no.
Nitrosend and ActiveCampaign, side by side
Checked September 25, 2026| Question | Nitrosend | ActiveCampaign |
|---|---|---|
| Send a campaign from the chatCan an agent send a marketing campaign without anyone opening the web app? | Yes. Yes, through the MCP server. Campaigns stay drafts until approved. | No. No. Its MCP tool list has no tool to create or send a campaign. It can edit one a person has set up, and the send happens in the web app. |
| Build automations from the chatCan an agent create a new automated flow, not just enroll contacts in one? | Yes. Yes. The agent builds flows through the MCP server. | No. No. The MCP server adds and removes contacts from existing automations. |
| Official MCP serverIs there a first-party MCP server for marketing email? | Yes. Yes. Listed as com.nitrosend/nitrosend on the official MCP registry. | Yes. Yes, a remote MCP URL on every plan, for contacts, lists, tags and enrollment. |
| Rarely emailed contacts are freeCan you keep contacts you rarely email without paying for them? | Yes. Yes. The bill follows emails sent. | No. No. The plan is set by how many contacts you hold. |
| Transactional includedAre receipts and resets in the same plan as newsletters? | Yes. Yes, on every plan including Free. | No. No. Transactional is Postmark, billed separately. |
| Free planIs there a free plan with no time limit? | Yes. Yes. 8,000 emails, then 500 a month, forever. | No. No. A 14-day trial with up to 100 sends. |
| Brand kit from your siteDoes it learn your fonts and colors from your website? | Yes. Yes, with voice and house style kept in AI Memory. | Yes. Yes, with the AI Brand Kit. |
| Mature drag-and-drop editorIs there a polished visual editor for a person building by hand? | Not a yes or no. A block builder exists. The agent is the main way in. | Yes. Yes, and a mature automation builder. |
Nitrosend meets 7 of 7 yes-or-no questions on this page, ActiveCampaign 3 of 8. Rows marked with a dash are not a yes or no question for that product.
How the two score
Seven tests, 100 points in all. Each product gets a score out of 10 on each one, and the total adds each score times the points for that test. Nitrosend leads 77.5 to 54.5. Most of the gap comes from two tests worth 20 points each: cost as the list grows, and running email from an AI agent.
Each test, scored
Points out of 100, scores out of 10, September 25, 2026| What we compared | Points | Nitrosend | ActiveCampaign |
|---|---|---|---|
| Run from an AI agent | 20 | 9 out of 10 | 5 out of 10 |
| On-brand design, no designer | 10 | 9 out of 10 | 7 out of 10 |
| Cost as the list grows | 20 | 9 out of 10 | 3 out of 10 |
| Free plan headroom | 10 | 7 out of 10 | 1 out of 10 |
| Transactional and marketing, one plan | 10 | 9 out of 10 | 5 out of 10 |
| Hands-on editor and templates | 15 | 6 out of 10 | 8 out of 10 |
| Integrations, support, track record | 15 | 5 out of 10 | 9 out of 10 |
| Total score | 100 | 77.5 out of 100 | 54.5 out of 100 |
Where each one runs out
Rank 1Nitrosend
77.5 out of 100Total
- Priced by
- Emails sent
- Free plan
- 8,000 emails, then 500 a month
- Entry plan
- $20 a month, 20,000 emails
- Run from an AI agent9 out of 10Official MCP server runs campaigns, flows and sends from the chat; campaigns and flows stay drafts until approved (MCP registry).
- On-brand design, no designer9 out of 10Brand Kit scans the site for colors, fonts and voice, and applies them to every draft on every plan (docs).
- Cost as the list grows9 out of 10Unlimited contacts on every plan. $20 a month for 20,000 emails, $100 for 125,000 (pricing).
- Free plan headroom7 out of 108,000 emails to start, then 500 a month, unlimited contacts. New accounts start at 100 recipients per rolling 24 hours (pricing).
- Transactional and marketing, one plan9 out of 10Transactional and marketing email share one allowance and one API on every plan, Free included (pricing).
- Hands-on editor and templates6 out of 10A block builder exists for editing by hand, but it is plainer, because the agent is the main way in.
- Integrations, support, 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: 8,000 emails to start, then 500 a month. No credit card.
Start free
Rank 2ActiveCampaign
54.5 out of 100Total
- Priced by
- Contacts held
- Free plan
- None, a 14-day trial
- Entry plan
- $15 a month, 1,000 contacts, billed annually
- Run from an AI agent5 out of 10Official MCP server manages contacts, lists and tags, edits a campaign's content and enrolls contacts in automations, but its tool list has no tool to create or send a campaign (tools).
- On-brand design, no designer7 out of 10AI Brand Kit imports colors, fonts and logos from your URL and builds templates in its editor (ActiveCampaign).
- Cost as the list grows3 out of 10Priced by contacts: $189 a month for 10,000 on Plus, $609 for 50,000, billed annually (pricing).
- Free plan headroom1 out of 10No free plan. A 14-day trial with up to 100 email sends (help).
- Transactional and marketing, one plan5 out of 10Transactional email is Postmark, a separate product with its own account and bill, linked by an app (ActiveCampaign).
- Hands-on editor and templates8 out of 10Mature email designer and automation builder, 4.4 of 5 across 14,799 reviews (G2).
- Integrations, support, track record9 out of 101,000+ apps and integrations, premium Salesforce and Dynamics connectors, and a built-in CRM (apps).
The verdict in short
ActiveCampaign is only better on two: the hands-on editor and automation builder, because years of refinement show in them, and integrations, support and track record, because 1,000+ apps and premium Salesforce and Dynamics connectors are hard to match.
That editor and automation builder are made for a person doing the work by hand. George Hartley, Nitrosend's co-founder, built Nitrosend because he wanted the opposite. On The Breakout CEO in August 2026 he described the frustration that started it: "why is every channel, but email like, like up to date with, with AI, why can't I do this from my agent?" On SaaS Stories in September 2026 he described a job he hands to an agent: telling it to "look at our last two years of kind of how we've nurtured trial through to paid ... recut them all". If an assistant will build your automations, test that before you weigh the builder.
At a glance
Nitrosend and ActiveCampaign are scored here on the same 7 tests, 100 points in all: Nitrosend 77.5 out of 100, ActiveCampaign 54.5 out of 100. Nitrosend takes its best score on Run from an AI agent and On-brand design, no designer and Cost as the list grows and Transactional and marketing, one plan (9 out of 10) and its lowest on Integrations, support, track record (5 out of 10). ActiveCampaign takes its best score on Integrations, support, track record (9 out of 10) and its lowest on Free plan headroom (1 out of 10). ActiveCampaign scores higher on Hands-on editor and templates and Integrations, support, track record. Scores are unadjusted, and every ActiveCampaign figure was read on its own site on September 25, 2026.
How we scored
Each test is a question with one answer per product, checked against that product's own pages and independent review sites on September 25, 2026. A 10 means the product does the job fully on its standard plans. A 5 means it does part of it, or does it only on a higher plan or in a second product. ActiveCampaign prices are the annually billed rates its pricing page shows, in US dollars. It publishes no monthly-billed rate on that page.
Run from an AI agent, 20 of 100. 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 given without leaving the assistant 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.
On-brand design, no designer, 10 of 100. 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?
Cost as the list grows, 20 of 100. What does the bill do when the list grows but the number of emails you send does not? Scored on published list prices, before any promotional discount.
Free plan headroom, 10 of 100. How far can a team get on the free plan before it has to pay: contacts, total sends, and the daily ceiling.
Transactional and marketing, one plan, 10 of 100. Can receipts, password resets and newsletters go out from one account, on one bill, through one API?
Hands-on editor and templates, 15 of 100. For a person who wants to build the email themselves: how mature are the visual editor and the template library?
Integrations, support, track record, 15 of 100. How many tools does it plug into, what support comes with the plan, and how long has it been doing this at scale?
What each one costs in 2026
ActiveCampaign sets the plan by the number of contacts held, and its pricing page shows only annually billed rates. At 10,000 contacts that is $149 a month on Starter, $189 on Plus and $375 on Pro. Starter stops at 25,000 contacts, and above 50,000 the page stops publishing prices and asks you to talk to sales. There is no free plan, only a 14-day trial capped at 100 sends.
Nitrosend does not charge for contacts at all. A brand that arrives with a large list pays nothing for it until it starts sending, because the bill follows the emails sent, as the Nitrosend pricing page sets out. The same logic runs through what email marketing actually costs.
ActiveCampaign's price also leaves out the receipts. Transactional email is Postmark, a separate product, and Postmark's pricing page starts its Basic plan at $15 a month for 10,000 emails, with extra emails at $1.80 per 1,000. A team that sends both pays two bills and watches two allowances. On Nitrosend the receipts come out of the same allowance as the newsletter.
Here is what that looks like for a list that sends two campaigns a month.
What each one costs
List prices, USD, September 25, 2026| Scenario | Nitrosend | ActiveCampaign |
|---|---|---|
| 10,000 contacts, two campaigns a month (20,000 emails) | Pro, $20 a month (20,000 emails) | Starter $149 a month, Plus $189, billed annually |
| 50,000 contacts, two campaigns a month (100,000 emails) | Ultra, $100 a month (125,000 emails) | Plus $609 a month, Pro $969, billed annually. Starter stops at 25,000 contacts |
| 100,000 contacts, two campaigns a month (200,000 emails) | Ultra plus 75,000 extra emails at $0.15 per 100, $212.50 a month | Not published. Above 50,000 contacts the page asks you to talk to sales |
| Add transactional email | Counted in the same allowance | A separate Postmark account and bill |
A new Nitrosend account starts on a lower daily recipient limit that rises as it earns sending standing, so a large list does not all go out on the first day. Plan the move with that ramp in mind.
Where ActiveCampaign is the better pick
ActiveCampaign takes two of the seven tests outright.
- The editor and the automation builder. A marketer who wants to draw every branch of a journey by hand will find ActiveCampaign's builder one of the most complete available, and its 14,799 reviews on G2 average 4.4 out of 5.
- The ecosystem. 1,000+ apps and integrations, premium connectors for Salesforce and Microsoft Dynamics, and a built-in CRM. Nitrosend has five data integrations and five sending providers, and it is a small team.
ActiveCampaign has moved on agents too, and its official MCP server is on every plan. The useful check for an AI-run account is not the announcement but the published tool list, because the list is what the assistant can actually call. For campaigns it holds five tools: list, get, links, messages, and update_campaign_message. There is no tool to create, schedule or send a campaign, and for automations it can only list them and add or remove a contact. ActiveCampaign's own prompt examples show the intended job: review the from name and address on a campaign someone has already scheduled and sharpen the subject line before it goes out. That makes the assistant a pre-send editor. A person still builds the campaign and the automation in the web app, which is why the agent test scores ActiveCampaign 5 and Nitrosend 9.
In Nitrosend the agent does the whole job. Its MCP server lets Claude or ChatGPT manage contacts, compose emails, build automated flows and launch campaigns in plain language, and Brand Kit applies the brand's colors, fonts and voice to what it composes. Campaigns and flows stay drafts until they are approved, so the send is a separate step from the writing. The AI email marketing guide shows the day-to-day, and the automation workflow guide covers the flows most teams rebuild first.
Moving from ActiveCampaign to Nitrosend
An assistant can do most of the move, reading from ActiveCampaign's API and writing into Nitrosend. Two limits on the ActiveCampaign side set the pace.
- Contacts. Export contacts as CSV, with tags and custom fields, or have the assistant page through the API. ActiveCampaign's API allows 5 requests per second per account and answers a faster caller with 429 Too Many Requests and a Retry-After header, and a typical list endpoint returns at most 100 records per call. So 50,000 contacts is at least 500 calls, and the limit is shared with every live integration on the account. Tell the assistant to wait out each Retry-After rather than retry at once. Import into Nitrosend in Contacts or through the imports API, which reports row-level errors, and bring consent status across, because only subscribed contacts should be sendable.
- Automations. ActiveCampaign's MCP tools can list automations and move contacts in and out of them, but none returns the steps inside one. Write each automation down (trigger, waits, emails, conditions), then describe it to the agent and it rebuilds it as a flow. Start with the ones that make money, and check each draft before approving it.
- Sending. Reputation built on ActiveCampaign's sending infrastructure stays there, so the new domain earns its own. Gmail's sender guidelines say to start with a low sending volume to engaged users and slowly increase it, and a new Nitrosend account's daily limit ramps the same way. The domain warm-up guide covers the ramp.
- Transactional. If Postmark sends the app's receipts today, they can move to the Nitrosend API on the same plan as the newsletter, or stay where they are while transactional email is tested.
- Run both. Keep ActiveCampaign until its renewal date while new flows move over.
Which one to pick
Pick ActiveCampaign if a marketer designs every automation branch by hand, the business depends on Salesforce, Dynamics or another of its 1,000+ integrations, or the sales team works in its built-in CRM.
Pick Nitrosend if an agent should build the flows, write and design the email and send it from the assistant the team already uses, the list is large relative to how often it is emailed, or receipts and newsletters belong on one plan and one API. Nitrosend covers both halves: transactional email of the kind teams buy from an email API, and designed flows and newsletters of the kind teams buy from a marketing platform. The Nitrosend MCP server and the ChatGPT app are the two ways most teams start.
Nitrosend vs ActiveCampaign FAQ
Yes. ActiveCampaign prices by contacts, so 10,000 contacts cost $189 a month on Plus and 50,000 cost $609, billed annually. Nitrosend prices by emails sent, so the same lists sending twice a month cost $20 and $100.
No. It offers a 14-day free trial with as many contacts as needed and up to 100 email sends. Nitrosend's Free plan has no time limit: 8,000 emails to start, then 500 a month.
Yes. ActiveCampaign's MCP server is available on every plan and connects to Claude and ChatGPT with a remote URL. Its published tool list manages contacts, lists, tags and deals, adds contacts to or removes them from automations, reads campaigns and edits a campaign's message. It has no tool to create, schedule or send a campaign, so a person sends from the web app.
Add the Nitrosend MCP server at api.nitrosend.com/mcp as a connector in Claude and sign in with OAuth. Then ask in plain language: import these contacts, draft a campaign for the spring sale, send a test to me. Campaigns and flows stay drafts until they are approved, and a single transactional email sends on the call. The same server works in ChatGPT, Cursor and Codex.
Yes, through Postmark by ActiveCampaign, a separate product with its own account and billing that connects to ActiveCampaign automations. Nitrosend sends transactional email from the same plan and API as campaigns.
Not automatically. Export contacts by CSV, then describe each automation to the agent and it rebuilds it as a flow. Check each one before turning it on.
Sending reputation belongs to the domain and the IP, and neither moves with the list. Verify the domain, send to the most engaged contacts first, and let the daily limit ramp. This review does not score deliverability, because neither product publishes a comparable inbox-placement number.