Solapi
“Connect texts and Kakao via API” — a post office that sends texts for you from a Korean number
What is Solapi?
Solapi is a text message and Kakao Alimtalk sending service from a Korean company. There is no monthly base fee, only a per-message rate, and it lets your own systems or automation tools send messages directly.
- 1No monthly base fee; pay only for the messages you send
- 2Send texts and KakaoTalk Alimtalk messages from one place
- 3Built around Korean regulations (sender numbers, ad labeling)
What sets it apart
These are the differences we found by running the same material through several tools in our training sessions.
Korean SMS and Alimtalk in one place
Send short texts, long texts, photo messages, and Kakao Alimtalk from the same account. Sending to recipients in Korea is the step overseas automation tools most often leave out, and this is the Korean service that fills in that last step.
Simple pricing
Per the official pricing page, there is no monthly base fee or API usage fee, and you pay only for the messages you send. Unit prices are published (SMS KRW 18, (≈ US$1) LMS KRW 45, (≈ US$1) Alimtalk KRW 13 (≈ US$1)), so you can estimate campaign costs before you commit (excl. VAT).
It connects in several ways
It offers official developer tools for several languages, and its developer guide also covers a direct connection to AI coding tools (MCP). A developer can set it up, or you can connect it from an automation tool using its address.
⚖️ The weaknesses are clear, too
This isn’t a tool you set up in a few clicks. You must register your sender number in advance, promotional texts require an (Ad) label and free opt-out instructions, and for most uses you need a developer or an automation tool to send the first message.
💡 In plain EnglishIt’s like a post office counter that mails your company’s letters for you. You write what goes in the envelope; this service handles sending it in compliance with the rules.
In Korea, text messages and KakaoTalk are still the surest way to reach customers. This Korean service fills exactly the gap that overseas automation tools leave open, so you can finish the last step of your automation here.
Same job, different approach
You need to send instructions to 40 trainees the day before training
The old way
- You build a group text on your phone while checking the list
- Editing names and venues by hand for each recipient
- You miss one person and send duplicates to two others
- You repeat the same work from scratch for the next training session
With Solapi
- Automation queues up the rows in the sheet that holds your list
- Names, places, and times are filled in for each person
- Send by Alimtalk first, fall back to text if it fails
- Send results are logged, so you can reuse the setup as-is next time
Common uses
Registration confirmations and advance notices
Send a confirmation automatically when someone registers for a training or event, then send the location and what to bring the day before. This is where phone inquiries drop noticeably.
Internal staff alerts
Send only the events you can’t afford to miss, such as large inquiries or system errors, to the manager’s phone. This is especially useful outside hours when no one is checking messaging apps.
Regular announcements
Send messages in bulk from a list when the wording is fixed and only the name and date change, such as payment, completion, and expiration notices.
Who it’s for
Best for
- ✓Anyone who needs to reach customers in Korea by text or Kakao Alimtalk
- ✓Managers whose automations keep ending with an empty last step
- ✓Organizations that can get help from developers or automation tools
Better served by other tools
- –Anyone who wants it done in a few clicks today
- –Anyone whose main goal is messaging overseas customers
- –When you need to send long content and email is a better fit
Can we use it at work?
The questions that adoption leads and security teams ask first.
Before you adopt it, check the official terms and your internal policies to see whether processor designation and outsourced personal-data processing are covered in your company policy, and how long send records are kept.
10-minute quick start
- 1
Sign up at solapi.com and open the admin console.
- 2
Under 'Sender Numbers,' register your company number and complete identity verification. You can’t send from a number that isn’t registered.
- 3
In the console, send a test text to your own number and confirm it actually arrives.
- 4
Then connect it to an automation tool or your internal systems. If you change the order, it’s hard to tell what went wrong.
Copy-and-paste prompts
Replace only the [bracketed] parts, then paste it in.
From the Google Sheet [attendee list], select every row where the training date is tomorrow, then send each person a text message through Solapi. Fill it in this format: “[Name], your [course name] training is tomorrow at [time] at [place]. Please bring [items].” Record the send result in the “Sent” column of the same sheet.
When a submission arrives in the website application form → use Solapi to send the applicant a confirmation text → also text the manager 'New application: [name]/[company]/[course]'. If a duplicate submission from the same number arrives within 10 minutes, send only one text.
When sending a payment confirmation → send it first as a KakaoTalk Alimtalk message → if that fails, resend the same content as a text message. If both fail, compile the failures into a list and notify the person in charge.
In the inquiry intake flow, pick out only the cases where the amount is KRW 5 million (≈ US$3,740) or more or the message contains 'urgent' → and send a text to the manager’s mobile phone through Solapi. For all the others, don’t send a text; just log them.
Every Monday at 9 a.m., pull last week’s Solapi delivery results → build a table of successes, failures, and failure reasons → if there are more than 5 failures, email it to the person in charge.
Using it with other tools
Linking two or three tools changes your work more than any single tool does.
Sign-up → confirmation text → log entry
Internal system → overnight alerts
Before you start
- You must register your sender number in advance. The official guide states this is a requirement under Article 84-2 of Korea’s Telecommunications Business Act, and you cannot send from a number that isn’t registered.
- Send promotional messages only to people who have opted in. Begin each one with (Ad), the sender’s name, and a free opt-out method. Use parentheses, not square brackets.
- Per the official guidelines, promotional messages can’t be sent between 9 p.m. and 8 a.m. the next morning. Overnight sending is allowed only with separate consent.
- If you mix promotional wording into a notice such as a verification code, the whole message is treated as an ad. Send notices and ads separately.
Pricing
For individual use
Short notices and verification texts
Long messages such as training instructions
Texts with images
Notification messages sent with pre-approved templates
Promotional messages via a Kakao channel
Checked 21 Sep 2026 · Per-message rates from the official pricing page (excl. VAT). There is no monthly base fee or API fee, and rates drop as monthly volume increases. Prices can change without notice, so check the official page before you pay. SOLAPI official pricing ↗ · SOLAPI official guide: sending advertising messages ↗ · SOLAPI official guide: sender numbers ↗
Where Solapi falls short
We don’t just list the positives. Here is what fell short when we used it.
- The console is built for developers
The screens are in Korean, but developer terms like sender profile, token, and group send come up often. At first, you may find yourself looking up terminology just to send one text.
- Low unit prices still add up
A few tens of won per message looks small, but as your list grows the cost adds up with every run. VAT is charged separately, so when you set a budget you’ll want to run the numbers once more.
- Alimtalk involves a wait
Alimtalk messages go out only with pre-approved templates. If you need to change the wording in a hurry, you can’t edit and send right away; you have to wait for approval, so same-day notices end up going out as text messages instead.
Tools to compare
StibeeEmail newsletter creation and delivery platform→
MailchimpEmail marketing automation and analytics→
MakeAutomation with a visual flow builder→
n8nAutomation with AI integrations→FAQ
Last updated 22 Sep 2026 · The ratings on this page come from John Kim, CEO of Nanum Consulting, who has used these tools firsthand in training and real work.
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