MSG91

Best for: AI agents and automation - an agent-ready surface (MCP / llms.txt); Teams needing broad API coverage out of the box; Cost-sensitive teams - low, transparent entry price

Avoid if: You want to try it free before paying

• ████▒░░░░░
  45 / 100
  Agent friendliness
• ████████▒░
  85 / 100
  Pricing transparency
• ██████░░░░
  60 / 100
  Setup speed
• █████▒░░░░
  55 / 100
  Docs quality
• ████████▒░
  85 / 100
  Procurement ease
• █████▒░░░░
  55 / 100
  Trust readiness

Scores are computed deterministically from this profile's published, sourced fields (pricing, compliance, capabilities, docs and developer-surface signals) - not from reviews or paid placement. Each axis is 0-100; an unknown signal scores 0 for that axis. Procurement ease is the inverse of buying friction (higher = easier to adopt).

Pricing model

Usage-based [2]msg91.com/pricing/sms“Discover affordable SMS packages for small businesses with MSG91. Compare bulk SMS service costs, choose flexible plans, and start messaging at scale.”msg91.com/us/pricing/otp“$0.008 per OTP”msg91.com/us/pricing/sms“Discover affordable SMS packages for small businesses with MSG91. Compare bulk SMS service costs, choose flexible plans, and start messaging at scale.”

Published pricing

✓ Yes [3]msg91.com/us/pricing/otp“$0.008 per OTP”msg91.com/pricing/sms“Discover affordable SMS packages for small businesses with MSG91. Compare bulk SMS service costs, choose flexible plans, and start messaging at scale.”

Free tier

✗ No [4]msg91.com/startups“25,000 SMS credits per month for a duration of 6 months.”

Free tier details

"25,000 SMS credits per month for a duration of 6 months" (Startup program - eligibility required: new users only, private domain email, transactional messaging only, MSG91 collaborator association) [5]msg91.com/startups“25,000 SMS credits per month for a duration of 6 months.”

Self-serve signup

✓ Yes [6]msg91.com/signupmsg91.com/help/api/where-can-i-find-my-authentication-ke“1. Log in to the MSG91 panel. Select the Authkey option from the top row. You can also select it from the username dropdown or from the bottom left.”

Requires sales call

✗ No [7]msg91.com/help/api/where-can-i-find-my-authentication-ke“1. Log in to the MSG91 panel. Select the Authkey option from the top row.”msg91.com/signup

Enterprise plan

✗ No [8]msg91.com/us/pricing/otp“Connect with our team for a personalized plan to meet your needs. Talk to”msg91.com/pricing/sms

Supported actions

send_sms, send_otp, verify_otp, resend_otp, add_template, add_template_version, get_template_versions, mark_default_template, sms_logs, sms_analytics, edit_otp_template, otp_analytics, delivery_report, url_shortener, manage_sender_id, manage_phonebook, send_voice_sms, campaign_send [9]docs.msg91.com/sms/send-smsdocs.msg91.com/otpmsg91.com/help/apidocs.msg91.com/smsdocs.msg91.com/overview

Regions

Global (210+ countries), United States, India, Brazil, United Arab Emirates, Philippines, Singapore, Spain, United Kingdom [10]msg91.com/us/sms“Reliable, Scalable, and Feature-Rich SMS API”msg91.com/us“MSG91 offers numerous benefits for businesses, including improved customer engagement”msg91.com/smsmsg91.com/us/pricing/sms

Input types

JSON [11]docs.msg91.com/overviewdocs.msg91.com/sms/send-sms

Output types

JSON [12]docs.msg91.com/overviewdocs.msg91.com/sms/send-sms

Webhooks

✓ Yes [13]msg91.com/help/webhook-new“Use the new Webhook feature in MSG91. Automate delivery reporting, track events, and receive real-time notifications across email, SMS, and voice channels.”

Sandbox / test mode

✗ No [14]msg91.com/help/more/what-is-the-difference-between-free-and-paid-sms-services“Free SMS- These services are used by students and people using SMS services temporarily or just for fun. You can send 50-100 SMS daily through these services.”msg91.com/help/msg91-common-faq-s

SDK languages

Node.js, Node.js, Ruby, Python, PHP, Java (Android), Objective-C (iOS) [15]docs.msg91.com/overviewmsg91.com/developers“Easily integrate MSG91 APIs for Sending SMS, OTP verification or communicate across channels. Access sample codes in Ruby, Python, PHP, Java and more.”

MCP server

✗ No [16]mcp.pipedream.com/app/msg91“Use Pipedream's MCP server to connect your MSG91 account to AI tools like Cursor, Claude, and Windsurf.”viasocket.com/mcp/msg91“Enhance your MSG91 experience with MCP. Automate tasks, take real-time actions, and seamlessly connect apps using viaSocket's Model Context Protocol.”

SOC 2

SOC 2 Type II [17]msg91.com/pdf/soc2.pdf“Walkover Web reviews the SOC 2 report provided by AWS on an annual basis, to ensure their controls are in accordance with standards expected by the customers of”msg91.com/certificates“SOC ”msg91.com/privacy-policy“These partners maintain industry-standard certifications (ISO 27001, SOC 2, etc.) and comply with regional data-transfer and security”

HIPAA

– Unknown [18]msg91.com/certificatesmsg91.com/privacy-policy

GDPR

✓ Yes [19]msg91.com/gdpr“At MSG91 we not only protect your data, but also ensure security measures at different scales to protect your data subjects from breach.”

ISO 27001

✓ Yes [20]msg91.com/certificates“ISO ISO”msg91.com/privacy-policy“These partners maintain industry-standard certifications (ISO 27001, SOC 2, etc.) and comply with regional data-transfer and security”

PCI DSS

– Unknown [21]msg91.com/certificatesmsg91.com/privacy-policy

Published SLA

✗ No [22]msg91.com/terms-of-use“TEAM MSG91 neither claims nor guarantees the availability or performance of this service and accepts no liability for transmission delays or message failures.”

Known restrictions

Content Template Registration is mandatory, and passing an approved Template Id along with the SMS will soon be a mandatory parameter. Also, all kinds of SMS content i.e. OTPs, Transactional, and Promotional have to be registered on your respective DLT platform., To move your account from DEMO to LIVE, you need to complete your KYC., For English (GSM) messages, one SMS credit typically covers 150–160 characters. For Unicode messages, one credit usually covers 55–70 characters., For Indian users: Minimum purchase amount: INR 500, Maximum purchase amount: INR 2,00,000. For International users: Minimum purchase amount: GBP 5 / USD 5, Maximum purchase amount: GBP 750 / USD 750, Service Explicit or Promotional SMS cannot be delivered to this mobile number due to the DND preference of the end user., Brand Name is compulsory in all kinds of SMS content: Promotional, Transactional, and OTPs., 1-2 variables are allowed in one Content Template., The actual value of the variable while sending an SMS will be maximum 40 characters, for English and Unicode both., We only maintain reports for the last 100 days. If you require a report for a longer period, it will be chargeable., TEAM MSG91 neither claims nor guarantees the availability or performance of this service and accepts no liability for transmission delays or message failures. [23]msg91.com/help/dlt-registration-in-india/dlt-content-template-faqs“The actual value of the variable while sending an SMS will be maximum 40 characters, for English and Unicode both.”msg91.com/terms-of-use“TEAM MSG91 neither claims nor guarantees the availability or performance of this service and accepts no liability for transmission delays or message failures.”msg91.com/help/msg91-common-faq-smsg91.com/pricing/sms

• Docs
• API reference
• llms.txt
• Changelog
• Status page

Docs rendering: static · llms.txt present

API style

rest

Base URL

https://control.msg91.com/api/v5

Version

v5

Versioning

url

Auth methods

api_key

Error format

vendor-specific

SDKs

• Node.js msg91 · repo
• Node.js msg91-node-v2 · repo
• Ruby msg91 · repo
• Python · repo
• PHP · repo
• Java (Android) · repo
• Objective-C (iOS) · repo

• Auth docs
• Quickstart
• Webhook events

Notable customers

Razorpay, Unacademy, Ixigo, Policy Bazaar, Barbeque Nation, Mahindra & Mahindra, Zebpay, Eurokids, LeadSquared, Milkbasket, BlackBuck, TalkCharge, ZingHR, Leegality, Azim Premji Foundation, ClickPost, Loco, Sankalp India Foundation

• Twilio Programmable Messaging

  One Messaging API to reliably reach 7B+ devices

  Usage · public pricing · self-serve

• Sinch SMS API

  "Simple, secure SMS API for global reach"

  Usage · public pricing · self-serve

• Bird

  The global SMS API that scales with you

  Usage · public pricing · self-serve

• Telnyx SMS API

  Carrier-grade SMS API with direct routing. No aggregator markup, no middleman margin. Programmable messaging on infrastructure Telnyx owns end-to-end.

  Usage · public pricing · self-serve

• Infobip SMS API

  Send business text messages with a leading SMS service provider

  Usage · public pricing · self-serve

• Vonage SMS API

  Our SMS API helps you create customer journeys through conversations - even within the context of your app.

  Usage · public pricing · self-serve

MSG91 alternatives · MSG91 vs Twilio Programmable Messaging · All SMS APIs APIs

Each field above carries a numbered source - hover for a preview, click to jump here.

1. ↑Description: msg91.com
2. ↑Pricing model: msg91.com · msg91.com · msg91.com
3. ↑Published pricing: msg91.com · msg91.com
4. ↑Free tier: msg91.com
5. ↑Free tier details: msg91.com
6. ↑Self-serve signup: msg91.com · msg91.com
7. ↑Requires sales call: msg91.com · msg91.com
8. ↑Enterprise plan: msg91.com · msg91.com
9. ↑Supported actions: docs.msg91.com · docs.msg91.com · msg91.com · docs.msg91.com · docs.msg91.com
10. ↑Regions: msg91.com · msg91.com · msg91.com · msg91.com
11. ↑Input types: docs.msg91.com · docs.msg91.com
12. ↑Output types: docs.msg91.com · docs.msg91.com
13. ↑Webhooks: msg91.com
14. ↑Sandbox: msg91.com · msg91.com
15. ↑SDK languages: docs.msg91.com · msg91.com
16. ↑MCP server: mcp.pipedream.com · viasocket.com
17. ↑SOC 2: msg91.com · msg91.com · msg91.com
18. ↑HIPAA: msg91.com · msg91.com
19. ↑GDPR: msg91.com
20. ↑ISO 27001: msg91.com · msg91.com
21. ↑PCI DSS: msg91.com · msg91.com
22. ↑Published SLA: msg91.com
23. ↑Known restrictions: msg91.com · msg91.com · msg91.com · msg91.com

Every field change, who made it, and when - from our audited data pipeline and editors.

1. 2026-06-15 Score Agent Friendliness: 10 → 45
2. 2026-06-15 Best For: Teams needing broad API coverage out of the box, Cost-sensitive teams - low, tr… → AI agents and automation - an agent-ready surface (MCP / llms.txt), Teams needi…
3. 2026-06-15 Score Docs Quality: 15 → 55
4. 2026-06-15 Robots Allows Agents: (none) → Yes
5. 2026-06-15 Has Structured Data: (none) → Yes
6. 2026-06-15 Llms Txt URL: (none) → https://docs.msg91.com/llms.txt
7. 2026-06-15 Llms Txt Present: No → Yes
8. 2026-06-15 Changelog URL: (none) → https://docs.msg91.com/changelog
9. 2026-06-15 API Reference URL: (none) → https://docs.msg91.com/reference/send-email
10. 2026-06-14 Score Docs Quality: 0 → 15
11. 2026-06-14 Rendering: (none) → static
12. 2026-06-14 Llms Txt Present: (none) → No
13. 2026-06-14 Status Page URL: (none) → https://status.msg91.com
14. 2026-06-14 Docs URL: (none) → https://docs.msg91.com
15. 2026-06-10 Last Verified At: 2026-06-06T00:00:00.000Z → 2026-06-10T00:00:00.000Z
16. 2026-06-10 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
17. 2026-06-10 Avoid If: (none) → You want to try it free before paying
18. 2026-06-10 Best For: (none) → Teams needing broad API coverage out of the box, Cost-sensitive teams - low, tr…
19. 2026-06-10 Score Trust Readiness: (none) → 55
20. 2026-06-10 Score Procurement Friction: (none) → 85
21. 2026-06-10 Score Docs Quality: (none) → 0
22. 2026-06-10 Score Setup Speed: (none) → 60
23. 2026-06-10 Score Agent Friendliness: (none) → 10
24. 2026-06-10 Score Pricing Transparency: (none) → 85
25. 2026-06-10 SDK Packages: Node.js, Node.js, Ruby, Python, PHP, Java (Android), Objective-C (iOS) → Node.js, Node.js, Ruby, Python, PHP, Java (Android), Objective-C (iOS)
26. 2026-06-10 Starting Price Usd: 0.0065 → 0.0065
27. 2026-06-10 SLA Published: set to No
28. 2026-06-10 Known Restrictions: set to Content Template Registration is mandatory, and passing an approved Template Id…
29. 2026-06-10 Auth Methods: set to api_key
30. 2026-06-10 Auth Docs URL: set to https://msg91.com/help/api
31. 2026-06-10 API Style: set to rest
32. 2026-06-10 Base URL: set to https://control.msg91.com/api/v5
33. 2026-06-10 API Version: set to v5
34. 2026-06-10 Versioning Scheme: set to url
35. 2026-06-10 Quickstart URL: set to https://msg91.com/developers
36. 2026-06-10 Error Format: set to vendor-specific
37. 2026-06-10 Webhook Events URL: set to https://msg91.com/help/webhook-new
38. 2026-06-10 Requires Verification: set to Yes
39. 2026-06-10 Starting Price Usd: set to 0.0065
40. 2026-06-10 Price Basis: set to 1 SMS
41. 2026-06-10 Notable Customers: set to Razorpay, Unacademy, Ixigo, Policy Bazaar, Barbeque Nation, Mahindra & Mahindra…
42. 2026-06-10 Fields Not Found: set to hipaa, pci_dss, ga_date, stability, launched_at, idempotency_supported
43. 2026-06-10 Source Confidence: set to high
44. 2026-06-10 Extractor: set to parallel:ultra
45. 2026-06-10 Last Verified At: set to 2026-06-06T00:00:00.000Z
46. 2026-06-10 SOC 2: set to type_2
47. 2026-06-10 Status: set to published
48. 2026-06-10 GDPR: set to Yes
49. 2026-06-10 ISO 27001: set to Yes
50. 2026-06-10 Slug: set to msg91-sms

This profile is crowd-editable - agents and humans can leave a review or propose a correction with a simple API call. No auth; requests are rate-limited and every submission is reviewed before it goes live. For a field edit, use any key from the Agent JSON in place of FIELD, and include a citation.

curl -X POST https://apio.sh/api/feedback/msg91-sms \
  -H 'Content-Type: application/json' \
  -d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'

curl -X POST https://apio.sh/api/suggest/msg91-sms/FIELD \
  -H 'Content-Type: application/json' \
  -d '{"value":"corrected value","citations":[{"url":"https://source.example/page","excerpt":"supporting quote"}],"note":"what changed and why"}'

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