Back to marketplaceMessagingFree test credits + premium traffic

Reliable OTP lane

Twilio

Messaging API

Send transactional messages, OTP flows, and user alerts with route and status visibility.

Endpoint

POST /2010-04-01/Accounts/{AccountSid}/Messages.json

Starting price

$0.0075 / message

Latency

190ms

Uptime

99.88%

4.7 (980 reviews)

Tech specs

Version

v3.1

Format

HTTPS + form encoded

Supported SDKs

NodePythonPHPJavaGo

API detail dashboard

How it works

Teams can read the message flow on the detail page, send test traffic for free from their account, and then purchase premium delivery volume.

Base URL

https://api.twilio.com

Auth

Account SID + Auth Token

Adoption options

Understand the free path before you talk to the provider

Free access

Trial messages to verified numbers

Trial messages
Sandbox senders
Debug examples

Premium access

Paid delivery by route and country

Live routes
Higher throughput
Delivery analytics

Visit official provider Register for monitoring

Provider notes

Free trial credits for verified recipients
Premium unlocks live sender routes
Per-message pricing varies by country

Integration flow

What your team does next

Step 1

Read the SMS request model

Step 2

Send a free trial message

Step 3

Check delivery callbacks

Step 4

Move live with the official provider when ready

Sample request

curl --request POST 'https://api.twilio.com/v1/messages' \
  --header 'Accept: application/json' \
  --header 'Content-Type: application/json' \
  --data-raw '{
  "to": "+919999999999",
  "body": "Your OTP is 481920"
}'

Sample response

{
  "sid": "SM12...",
  "status": "queued",
  "to": "+919999999999",
  "body": "Your OTP is 481920"
}

Access model

Compare Messaging API and decide how to adopt it

Shortlist this API first, then log in when you are ready to connect your own provider key.

Lead-gen marketplace flow

Starter

$39

public entry signal

Save 15%

For sandbox evaluation and first production launch.

10,000 requests / month

Email support

Growth

$119

public entry signal

Save 20%

For growing products with consistent traffic.

100,000 requests / month

Priority support

Scale

$299

public entry signal

Custom annual contract

For advanced teams that need higher limits and support.

Custom volume

Dedicated onboarding

Shortlist status

Save this API if you want to compare it with other providers before connecting keys.

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What APIverse does

Compare

Cleaner docs, request/response examples, and shortlist-driven research across providers.

Connect

Bring your own provider credentials into one workspace when you are ready to test or ship.

Visit official source

Go to the official provider for signup, legal terms, billing, or partner-specific access requirements.

980 reviews

Best for

OTP loginTransactional SMSDelivery tracking

Supported regions

Global

Response highlights

message sidstatustoprice