Ai telnyx-whatsapp-python

install
source · Clone the upstream repo
git clone https://github.com/team-telnyx/ai
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/team-telnyx/ai "$T" && mkdir -p ~/.claude/skills && cp -r "$T/providers/claude/plugin/skills/telnyx-whatsapp-python" ~/.claude/skills/team-telnyx-ai-telnyx-whatsapp-python && rm -rf "$T"
manifest: providers/claude/plugin/skills/telnyx-whatsapp-python/SKILL.md
source content

Telnyx WhatsApp Business API - Python

Installation

pip install telnyx

Setup

import os
from telnyx import Telnyx

client = Telnyx(
    api_key=os.environ.get("TELNYX_API_KEY"),
)

All examples below assume

client
is already initialized as shown above.

Error Handling

All API calls can fail with network errors, rate limits (429), validation errors (422), or authentication errors (401). Always handle errors in production code:

import telnyx

try:
    response = client.messages.send_whatsapp(
        from_="+19452940762",
        to="+18005551234",
        type_="WHATSAPP",
        whatsapp_message={
            "type": "text",
            "text": {"body": "Hello from Telnyx!"}
        },
    )
except telnyx.APIError as e:
    print(f"API error: {e.status_code} - {e.message}")
except telnyx.AuthenticationError:
    print("Invalid API key")
except telnyx.RateLimitError:
    print("Rate limited - retry with backoff")

Common error codes:

401
invalid API key,
403
insufficient permissions,
404
resource not found,
422
validation error (check field formats),
429
rate limited (retry with exponential backoff).

WhatsApp-Specific Errors

  • 40008 — Meta catch-all error. Check template parameters, phone number formatting, and 24-hour window rules.
  • 131047 — Message failed to send during the 24-hour window. The customer hasn't messaged you first (for non-template messages).
  • 131026 — Recipient phone number is not a WhatsApp user.
  • 132000 — Template parameter count mismatch. Ensure the number of parameters matches the template definition.
  • 132015 — Template paused or disabled by Meta due to quality issues.

Important Notes

  • Phone numbers must be in E.164 format (e.g.,
    +13125550001
    ). Include the
    +
    prefix and country code.
  • Template messages can be sent anytime. Free-form (session) messages can only be sent within a 24-hour window after the customer last messaged you.
  • Template IDs: You can reference templates by Telnyx UUID (
    template_id
    ) instead of
    name
    +
    language
    . When
    template_id
    is provided, name and language are resolved automatically.
  • Pagination: List endpoints return paginated results. Use the auto-iterator pattern:
    for item in response.auto_paging_iter()
    .

Operational Caveats

  • The sending phone number must be registered with a WhatsApp Business Account (WABA) and associated with a messaging profile.
  • Templates must be in
    APPROVED
    status before they can be used for sending.
  • Template names must be lowercase with underscores only (e.g.,
    order_confirmation
    ). No spaces, hyphens, or uppercase.
  • When creating templates, provide realistic sample values for body parameters — Meta reviewers check these during approval.
  • Category selection matters for billing:
    AUTHENTICATION
    templates get special pricing but must contain an OTP.
    UTILITY
    is for transactional messages.
    MARKETING
    for promotional content.
  • Meta may reclassify your template category (e.g., UTILITY to MARKETING) which affects billing.

Reference Use Rules

Do not invent Telnyx parameters, enums, response fields, or webhook fields.

Core Tasks

Send a WhatsApp template message

Send a pre-approved template message. Templates can be sent anytime — no 24-hour window restriction.

client.messages.send_whatsapp()
POST /messages/whatsapp

ParameterTypeRequiredDescription
from_
string (E.164)YesWhatsApp-enabled phone number in +E.164 format
to
string (E.164)YesRecipient phone number in +E.164 format
type_
stringNoMust be
WHATSAPP
whatsapp_message
objectYesWhatsApp message object
messaging_profile_id
string (UUID)NoMessaging profile to use
webhook_url
string (URL)NoCallback URL for delivery status updates
# Send by template name + language
response = client.messages.send_whatsapp(
    from_="+19452940762",
    to="+18005551234",
    type_="WHATSAPP",
    whatsapp_message={
        "type": "template",
        "template": {
            "name": "order_confirmation",
            "language": {"code": "en_US"},
            "components": [
                {
                    "type": "body",
                    "parameters": [
                        {"type": "text", "text": "ORD-12345"},
                        {"type": "text", "text": "March 15, 2026"},
                    ],
                }
            ],
        },
    },
)
print(response.data.id)
# Send by Telnyx template_id (no name/language needed)
response = client.messages.send_whatsapp(
    from_="+19452940762",
    to="+18005551234",
    type_="WHATSAPP",
    whatsapp_message={
        "type": "template",
        "template": {
            "template_id": "019cd44b-3a1c-781b-956e-bd33e9fd2ac6",
            "components": [
                {
                    "type": "body",
                    "parameters": [{"type": "text", "text": "483291"}],
                }
            ],
        },
    },
)

Primary response fields:

  • response.data.id
    — Message UUID
  • response.data.to[0].status
    queued
    ,
    sent
    ,
    delivered
    ,
    failed
  • response.data.from_.phone_number
  • response.data.type
    WHATSAPP

Send a free-form WhatsApp text message

Send a text message within the 24-hour customer service window.

client.messages.send_whatsapp()
POST /messages/whatsapp

response = client.messages.send_whatsapp(
    from_="+19452940762",
    to="+18005551234",
    type_="WHATSAPP",
    whatsapp_message={
        "type": "text",
        "text": {"body": "Your order has shipped!"},
    },
)

List WhatsApp Business Accounts

client.whatsapp.business_accounts.list()
GET /v2/whatsapp/business_accounts

response = client.whatsapp.business_accounts.list()
for waba in response.data:
    print(f"{waba.id}: {waba.name} ({waba.status})")

Primary response fields:

  • waba.id
    — Telnyx WABA UUID
  • waba.waba_id
    — Meta WABA ID
  • waba.name
    — Business name
  • waba.status
    — Account status
  • waba.country
    — WABA country

List templates

client.whatsapp.templates.list()
GET /v2/whatsapp/message_templates

ParameterTypeRequiredDescription
waba_id
string (UUID)NoFilter by Telnyx WABA UUID (query parameter)
category
stringNoFilter:
AUTHENTICATION
,
MARKETING
,
UTILITY
status
stringNoFilter:
APPROVED
,
PENDING
,
REJECTED
,
DISABLED
response = client.whatsapp.templates.list(
    waba_id="019c1ff0-5c30-7f36-8436-730b1d0b0e56",
    status="APPROVED",
)
for tmpl in response.data:
    print(f"{tmpl.id}: {tmpl.name} ({tmpl.category}) - {tmpl.status}")

Primary response fields:

  • tmpl.id
    — Telnyx template UUID (use as
    template_id
    when sending)
  • tmpl.name
    — Template name
  • tmpl.category
    AUTHENTICATION
    ,
    MARKETING
    , or
    UTILITY
  • tmpl.language
    — Language code
  • tmpl.status
    APPROVED
    ,
    PENDING
    ,
    REJECTED
    ,
    DISABLED
  • tmpl.components
    — Template components

Create a message template

client.whatsapp.templates.create()
POST /v2/whatsapp/message_templates

response = client.whatsapp.templates.create(
    waba_id="019c1ff0-5c30-7f36-8436-730b1d0b0e56",
    name="order_shipped",
    category="UTILITY",
    language="en_US",
    components=[
        {
            "type": "BODY",
            "text": "Your order {{1}} has been shipped and will arrive by {{2}}.",
            "example": {
                "body_text": [["ORD-12345", "March 20, 2026"]]
            },
        }
    ],
)
print(f"Template created: {response.data.id} (status: {response.data.status})")

List phone numbers

client.whatsapp.phone_numbers.list()
GET /v2/whatsapp/phone_numbers

response = client.whatsapp.phone_numbers.list(
    waba_id="019c1ff0-5c30-7f36-8436-730b1d0b0e56",
)
for pn in response.data:
    print(f"{pn.phone_number} - quality: {pn.quality_rating}")

Webhook Verification

Telnyx signs webhooks with Ed25519. Always verify signatures in production:

from telnyx.webhooks import Webhook

event = Webhook.construct_event(
    payload=request.body,
    sig_header=request.headers["telnyx-signature-ed25519"],
    timestamp=request.headers["telnyx-timestamp"],
    public_key=TELNYX_PUBLIC_KEY,
)

Webhooks

These webhook payload fields are inline because they are part of the primary integration path.

Message Delivery Update

FieldTypeDescription
data.event_type
enum: message.sent, message.finalizedDelivery status event
data.payload.id
uuidMessage ID
data.payload.to[0].status
string
queued
,
sent
,
delivered
,
read
,
failed
data.payload.template_id
stringTelnyx template UUID (if template message)
data.payload.template_name
stringTemplate name (if template message)

Template Status Change

FieldTypeDescription
event_type
string
whatsapp.template.approved
,
whatsapp.template.rejected
,
whatsapp.template.disabled
payload.template_id
stringTelnyx template UUID
payload.template_name
stringTemplate name
payload.status
stringNew template status
payload.reason
stringRejection/disable reason

Template Best Practices

  • Naming: Use lowercase with underscores. Be descriptive (e.g.,
    appointment_reminder
    , not
    msg1
    ).
  • Sample values: Provide realistic examples in the
    example
    field — Meta reviewers check these.
  • Category selection:
    • AUTHENTICATION
      — OTP/verification codes only. Gets special pricing.
    • UTILITY
      — Transactional (order updates, shipping, account alerts).
    • MARKETING
      — Promotional content, offers, newsletters.
  • Keep it concise: Meta prefers shorter templates. Avoid unnecessary formatting.
  • Parameters: Use
    {{1}}
    ,
    {{2}}
    , etc. for variable content. Always provide the correct number of parameters when sending.

Important Supporting Operations

OperationSDK MethodUse Case
Get template details
client.whatsapp_message_templates.retrieve()
Check template status
Get business profile
client.whatsapp.phone_numbers.profile.retrieve()
View business profile
Update WABA settings
client.whatsapp.business_accounts.settings.update()
Configure webhook URL and events

Additional Operations

OperationSDK MethodEndpointRequired Params
Send WhatsApp message
client.messages.send_whatsapp()
POST /messages/whatsapp
from_
,
to
,
whatsapp_message
List WABAs
client.whatsapp.business_accounts.list()
GET /v2/whatsapp/business_accounts
Get WABA
client.whatsapp.business_accounts.retrieve()
GET /v2/whatsapp/business_accounts/{id}
waba_id
List templates
client.whatsapp.templates.list()
GET /v2/whatsapp/message_templates
Get template
client.whatsapp_message_templates.retrieve()
GET /v2/whatsapp_message_templates/{id}
template_id
Create template
client.whatsapp.templates.create()
POST /v2/whatsapp/message_templates
waba_id
,
name
,
category
,
language
,
components
List phone numbers
client.whatsapp.phone_numbers.list()
GET /v2/whatsapp/phone_numbers
Get WABA settings
client.whatsapp.business_accounts.settings.retrieve()
GET /v2/whatsapp/business_accounts/{id}/settings
waba_id
Update WABA settings
client.whatsapp.business_accounts.settings.update()
PATCH /v2/whatsapp/business_accounts/{id}/settings
waba_id