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Built for developers

Wire it into whatever you already run

One key, one endpoint per channel. Send an SMS from your checkout, verify a phone at signup, fire an email from software you already have.

endpoints

key, every channel

requests per minute

JSON

in and out

SMS

Send a message from your own code

One number or a whole loop of them. The carrier is detected from the prefix, credits come off the balance the send succeeded on, and the delivery status comes back to a webhook you choose.

Carrier detected automatically

Charged per successful send

Delivery status by webhook

POST /sms/send

curl -X POST "https://leadhunter.marketing/api/sms/send" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to":"+50946378462","message":"Your order is on the way."}'

{ "success": true, "message_id": "msg_6a28837e", "status": "queued", "credits_used": 6 }

Transactional email, no template needed

Pass a subject and an HTML body. Order confirmations, password resets, receipts — anything that has to reach one person rather than a list.

HTML or plain text

Your own sender name

One credit per email

POST /email/send

curl -X POST "https://leadhunter.marketing/api/email/send" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to":"customer@example.com","subject":"Welcome","body":"<p>Thanks.</p>"}'

{ "success": true, "message_id": "eml_2f91c4", "status": "sent", "credits_used": 1 }

One-time codes

Verify a phone or an email in two calls

Send a code, then check what the user typed. The code, the expiry and the attempt count are held on our side, so there is nothing to store and nothing to get wrong.

By SMS or by email

Expiry you choose

Verification is free

POST /otp/send

curl -X POST "https://leadhunter.marketing/api/otp/send" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to":"+50946378462","channel":"sms","expires":300}'

{ "success": true, "otp_id": 42, "channel": "sms", "credits_used": 5 }

Balance

Know what you have left

One call returns the balance for every channel. Poll it on a schedule, or read it before a large batch so nothing stops halfway.

Every channel at once

No credit cost

Check before a batch

GET /account/balance

curl -H "X-API-Key: YOUR_KEY" \
  "https://leadhunter.marketing/api/account/balance"

{ "success": true, "balances": { "sms": 2000, "email": 1998, "otp": 300 } }

What it costs

Credits come off per successful send. Nothing monthly, nothing to cancel.

Channel	Cost	Notes
SMS	6 credits	Rate depends on the carrier, detected from the number
Email	1 credit	Per email sent
OTP	5 credits	Per code sent — verification is free

What people build with it

Anything that needs to reach a person.

Online shops

An SMS when the order ships, an email when it arrives, a code at checkout.

Mobile apps

CRMs and internal tools

Fire a message from software your team already lives in, on the events that matter.

Schools and clinics

Reach four hundred parents this afternoon from a spreadsheet you already have.