Kaleyra WhatsApp API (Tata Communications)

Best for: Regulated or enterprise workloads - compliance attestations and an enterprise plan; AI agents and automation - an agent-ready surface (MCP / llms.txt); Teams needing broad API coverage out of the box

Avoid if: You need transparent pricing up front; You want to try it free before paying

Pricing model

Contact sales

Published pricing

✗ No [2]tatacommunications.com/kaleyra/cpaas“No pricing information, plans, or tiers are disclosed on this page”zixflow.com/blog/whatsapp-api-providers/“Kaleyra does not provide any pricing information on its website. You will have to contact its sales team to receive a custom quotation.”

Free tier

✗ No

Free tier details

Meta provides 1,000 free service conversations per month per WABA (user-initiated only; marketing, utility, and authentication conversations are always charged). Kaleyra publishes no $0 platform plan. [3]developers.kaleyra.io/docs/whatsapp-conversations“Each WhatsApp Business Account receives 1,000 free Service conversations each month per WABA. Marketing, Utility, and Authentication conversations are excluded from this free allocation and are always charged.”

Self-serve signup

✓ Yes [4]developers.kaleyra.io/docs/embedded-signup“The embedded signup feature enables you to register for the WhatsApp Business Platform directly from the kaleyra.io application, and the feature significantly accelerates your onboarding process and makes the entire process easier.”tatacommunications.com/kaleyra/cpaas“New customer? Start here — signup entry point exists, though commercial pricing requires sales engagement”

Requires sales call

✓ Yes [5]zixflow.com/blog/whatsapp-api-providers/“Kaleyra does not provide any pricing information on its website. You will have to contact its sales team to receive a custom quotation.”tatacommunications.com/kaleyra/cpaas“Talk To An Expert and Contact Us buttons throughout; no self-serve checkout or published pricing tiers found”

Enterprise plan

✓ Yes [6]tatacommunications.com/kaleyra/cpaas“Enterprise-grade CPaaS. Trusted by world-class brands”tatacommunications.com/kaleyra/cpaas/whatsapp-business-api“Register with a reliable provider like Tata Communications Kaleyra™, complete the verification process, and access the WhatsApp API for seamless customer communication.”

Supported actions

send_template_message, send_session_message, send_media (image, audio, video, document, sticker), interactive_buttons (reply buttons), list_messages, whatsapp_flows, catalog / products (single-product, multi-product, catalog messages), payments (WhatsApp Pay - India only, via Razorpay and PayU), inbound_webhooks, template_management (create, edit, retrieve, delete, analytics), phone_number_registration (add, verify, OTP retry), message_status_callbacks (sent, delivered, read, failed), read_receipts, reaction_messages, location_sharing (send and request), contact_sharing, carousel_template_messages, authentication_template_messages, order_details_and_status_templates, coupon_code_templates, limited_time_offer_templates, resumable_media_upload, embedded_signup (V1 and V2)

Regions

global (190+ countries), WhatsApp Pay India only [7]tatacommunications.com/kaleyra/cpaas/whatsapp-business-api“WhatsApp is available in over 180 countries, so you can reach your customers wherever they are”tatacommunications.com/kaleyra/cpaas“190+ countries covered”

Languages

multilingual support stated; 40+ languages mentioned for WhatsApp messaging

Input types

text, template, image, video, document, audio, sticker, interactive buttons / lists, location, contacts, catalog / products, carousel, flows, authentication OTP template, order details template, coupon code template, limited-time offer template

Output types

message_status (sent/delivered/read/failed), inbound message webhook, delivery receipts, template approval notifications, payment status webhooks, opt-out status events

Webhooks

✓ Yes [8]developers.kaleyra.io/docs/whatsapp-messages-api-v2-overview“Only the Callback Profile ID is supported for callbacks; the Callback URL is not applicable. Incoming message and status update webhooks include: Delivery receipts (sent, delivered, read, failed), Mobile-originated (MO) message events, Payment and opt-out status updates, Template approval notifications.”

Sandbox / test mode

✗ No [9]developers.kaleyra.io/docs/frequently-asked-questions“No sandbox/test environment, rate limits, pricing, or regional support details appear in provided documentation.”

SDK languages

Java [10]github.com/kaleyra“kaleyra-java — A JAVA library for consuming Kaleyra REST APIs (2 stars). The organization appears to focus primarily on Java; no Python, Node.js, or JavaScript SDK libraries found.”

MCP server

✗ No

SOC 2

– Unknown [11]tatacommunications.com/solutions/cloud/compliance/soc2/“SOC 2 compliance covers Tata Communications Vayu Cloud (managed cloud/IaaS) services only — compute, network, storage, databases, middleware. Kaleyra CPaaS messaging products are not in scope.”tatacommunications.com/kaleyra/cpaas“ISO 27001 certified and fully compliant with GDPR, HIPAA, and local telecom laws. — SOC2 not mentioned for Kaleyra CPaaS”

HIPAA

✓ Yes [12]tatacommunications.com/kaleyra/cpaas“ISO 27001 certified and fully compliant with GDPR, HIPAA, and local telecom laws.”

GDPR

✓ Yes [13]tatacommunications.com/kaleyra/cpaas“ISO 27001 certified and fully compliant with GDPR, HIPAA, and local telecom laws.”

ISO 27001

✓ Yes [14]tatacommunications.com/kaleyra/cpaas“ISO 27001 certified and fully compliant with GDPR, HIPAA, and local telecom laws.”

PCI DSS

– Unknown [15]tatacommunications.com/solutions/cloud/compliance/pci-dss/“Tata Communications Ltd. is a Service Provider focusing Infrastructure as Service (IaaS) where hardware and network infrastructure is assessed. TCL does not directly store, transmit or process any cardholder data (CHD).”

Published SLA

✓ Yes [16]tatacommunications.com/kaleyra/cpaas“99.99% uptime, ensuring uninterrupted communication.”tatacommunications.com/kaleyra/cpaas“21 years of flawless SLA maintenance”

Rate limits

Maximum tested outbound message rate: 20 messages per second. WhatsApp messaging tiers: Unverified WABA: 250 business-initiated conversations per rolling 24 hours; TIER_1K: 1,000 per 24 hours; TIER_10K: 10,000 per 24 hours; TIER_100K: 100,000 per 24 hours; TIER_UNLIMITED: unrestricted. Tier advancement requires quality rating maintained and 2x current tier volume within 7 days. [17]developers.kaleyra.io/docs/capacity-and-messaging-limits“The maximum tested outbound message rate is 20 messages per second. WhatsApp implements two capacity throttling mechanisms: Request rate-limiting (returns 429 errors) and Concurrent rate-limiting (returns 503 errors).”developers.kaleyra.io/docs/whatsapp-messaging-limits“TIER_1K: 1,000 conversations per 24 hours; TIER_10K: 10,000 conversations per 24 hours; TIER_100K: 100,000 conversations per 24 hours; TIER_UNLIMITED: Unrestricted conversations. Unverified accounts: Flat 250 conversation limit per rolling 24-hour window.”

Known restrictions

Requires Facebook Business Manager account for embedded signup, Unverified WABA limited to 250 conversations/day and 2 phone numbers; Meta Business Verification needed to scale, Existing WhatsApp numbers from another BSP cannot be migrated to Kaleyra; new number creation required, Once registered on Business API, numbers cannot revert to consumer WhatsApp apps, WhatsApp Pay available only in India (via Razorpay and PayU), Template pre-approval by Meta required, 24-hour customer service window applies to user-initiated sessions, Quality-rating throttling: Meta reduces tier if quality rating stays 'low' for 7 consecutive days, Callback Profile ID required for webhooks; direct Callback URL configuration not supported in V2 API, No sandbox/test number available; pricing is contact-sales only, Account setup takes 2-3 weeks including approval, verification, and configuration

• Docs
• llms.txt

Docs rendering: static · llms.txt present

API style

rest

Base URL

https://api.in.kaleyra.io/v2/{SID} (IN); https://api.ap.kaleyra.io/v2/{SID} (AP/SG); https://api.eu.kaleyra.io/v2/{SID} (EU)

Version

v2

Versioning

url

Stability

ga

Auth methods

api_key

Idempotency keys

✗ No

Error format

vendor-specific

Webhook signing

Basic Authentication (Authorization: Basic base64(username:password)) or custom API-key header; no X-Hub-Signature-256 documented

Rate limit

20 / second

SDKs

• Java kaleyra-java · repo

• Auth docs
• Quickstart
• Webhook events

Launched

2019-01-01

Notable customers

Shiprocket, Verisure, Isansys, AirAsia

• Twilio WhatsApp Business API

  "Enable businesses to engage customers through WhatsApp messaging and calling via programmable APIs" connecting "3+ billion users on the world's most popular messaging app"

  Usage · public pricing · self-serve

• Bird WhatsApp API (MessageBird)

  "Engage customers worldwide with WhatsApp API" - Bird connects marketing, service, and operations teams with customers on the world's most popular messaging app through rich message templates, interactive elements, product catalogs, and one-click payments via a unified API platform.

  Hybrid · public pricing · self-serve

• Vonage Messages API (WhatsApp)

  "The Vonage Messages API integrates with SMS, MMS, RCS, WhatsApp, Messenger, Viber, and Email allowing you to communicate with your customers on the channels they like." - Vonage Messages API enables businesses to send and receive WhatsApp messages via a unified multichannel messaging platform.

  Usage · public pricing · self-serve

• Infobip WhatsApp Business API

  "Meta-authorized partner that provides businesses with secure access to WhatsApp's messaging infrastructure, enabling secure interactions, 24/7 customer support, and unique experiences at scale."

  Sales-led · self-serve

• WhatsApp Cloud API (Meta)

  "The Cloud API, hosted by Meta, allows you to implement WhatsApp Business APIs without the cost of hosting your own servers and also allows you to more easily scale your business messaging."

  Usage · public pricing · self-serve

• 360dialog WhatsApp Business API

  "WhatsApp Business solutions that drive real results"

  Hybrid · public pricing · self-serve

Kaleyra WhatsApp API (Tata Communications) alternatives · Kaleyra WhatsApp API (Tata Communications) vs Twilio WhatsApp Business API · All WhatsApp Business APIs APIs

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

1. ↑Description: tatacommunications.com
2. ↑Published pricing: tatacommunications.com · zixflow.com
3. ↑Free tier details: developers.kaleyra.io
4. ↑Self-serve signup: developers.kaleyra.io · tatacommunications.com
5. ↑Requires sales call: zixflow.com · tatacommunications.com
6. ↑Enterprise plan: tatacommunications.com · tatacommunications.com
7. ↑Regions: tatacommunications.com · tatacommunications.com
8. ↑Webhooks: developers.kaleyra.io
9. ↑Sandbox: developers.kaleyra.io
10. ↑SDK languages: github.com
11. ↑SOC 2: tatacommunications.com · tatacommunications.com
12. ↑HIPAA: tatacommunications.com
13. ↑GDPR: tatacommunications.com
14. ↑ISO 27001: tatacommunications.com
15. ↑PCI DSS: tatacommunications.com
16. ↑Published SLA: tatacommunications.com · tatacommunications.com
17. ↑Rate limits: developers.kaleyra.io · developers.kaleyra.io

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

1. 2026-06-16 Summary Md: (none) → Kaleyra WhatsApp API, offered by Tata Communications (a Meta Premier Partner) u…
2. 2026-06-16 Score Setup Speed: (none) → 50
3. 2026-06-16 Score Docs Quality: (none) → 25
4. 2026-06-16 Score Procurement Friction: (none) → 25
5. 2026-06-16 Score Trust Readiness: (none) → 65
6. 2026-06-16 Best For: (none) → Regulated or enterprise workloads - compliance attestations and an enterprise p…
7. 2026-06-16 Avoid If: (none) → You need transparent pricing up front, You want to try it free before paying
8. 2026-06-16 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
9. 2026-06-16 Score Agent Friendliness: (none) → 35
10. 2026-06-16 Score Pricing Transparency: (none) → 0
11. 2026-06-16 Rendering: (none) → static
12. 2026-06-16 Has Structured Data: (none) → No
13. 2026-06-16 Robots Allows Agents: (none) → Yes
14. 2026-06-16 Docs URL: (none) → https://developer.tatacommunications.com/
15. 2026-06-16 Llms Txt Present: (none) → Yes
16. 2026-06-16 Llms Txt URL: (none) → https://www.tatacommunications.com/llms.txt
17. 2026-06-16 Pricing Model: set to contact_sales
18. 2026-06-16 Has Published Pricing: set to No
19. 2026-06-16 Free Tier Available: set to No
20. 2026-06-16 Free Tier Details: set to Meta provides 1,000 free service conversations per month per WABA (user-initiat…
21. 2026-06-16 Self Serve Signup: set to Yes
22. 2026-06-16 Requires Sales Call: set to Yes
23. 2026-06-16 Enterprise Plan Available: set to Yes
24. 2026-06-16 HIPAA: set to Yes
25. 2026-06-16 GDPR: set to Yes
26. 2026-06-16 ISO 27001: set to Yes
27. 2026-06-16 SLA Published: set to Yes
28. 2026-06-16 Documented Rate Limits: set to Maximum tested outbound message rate: 20 messages per second. WhatsApp messagin…
29. 2026-06-16 Rate Limit Requests: set to 20
30. 2026-06-16 Rate Limit Window: set to second
31. 2026-06-16 Known Restrictions: set to Requires Facebook Business Manager account for embedded signup, Unverified WABA…
32. 2026-06-16 Auth Methods: set to api_key
33. 2026-06-16 Auth Docs URL: set to https://developers.kaleyra.io/docs/getting-started-with-whatsapp
34. 2026-06-16 API Style: set to rest
35. 2026-06-16 Base URL: set to https://api.in.kaleyra.io/v2/{SID} (IN); https://api.ap.kaleyra.io/v2/{SID} (AP…
36. 2026-06-16 API Version: set to v2
37. 2026-06-16 Versioning Scheme: set to url
38. 2026-06-16 Stability: set to ga
39. 2026-06-16 Quickstart URL: set to https://developers.kaleyra.io/docs/getting-started-with-whatsapp
40. 2026-06-16 Idempotency Supported: set to No
41. 2026-06-16 Error Format: set to vendor-specific
42. 2026-06-16 Slug: set to kaleyra
43. 2026-06-16 Webhook Events URL: set to https://developers.kaleyra.io/docs/whatsapp-callback-url
44. 2026-06-16 Requires Verification: set to Yes
45. 2026-06-16 Launched At: set to 2019-01-01
46. 2026-06-16 Notable Customers: set to Shiprocket, Verisure, Isansys, AirAsia
47. 2026-06-16 Fields Not Found: set to minimum_commitment, pci_dss (Tata Communications PCI DSS covers IaaS only, not …
48. 2026-06-16 Source Confidence: set to high
49. 2026-06-16 Extractor: set to claude-subagent:sonnet
50. 2026-06-16 Last Verified At: set to 2026-06-16T00:00:00.000Z

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