New skill: skills/sms/ - SKILL.md (336 lines, under 500 limit): strategy, when SMS beats email, compliance overview, sequence types, copy guidelines, platform selection, measurement, common mistakes - references/compliance.md: TCPA, A2P 10DLC, EU GDPR, CASL, Australia, opt-in disclosure templates, STOP/HELP response templates, audit checklist - references/sequence-templates.md: full copy templates with character counts for welcome, abandoned cart, browse abandonment, post-purchase, win-back, promotional, transactional, re-engagement, replenishment, VIP - references/platforms.md: platform deep-dives across Klaviyo SMS, Postscript, Attentive, Twilio, Plivo, AudienceTap, Brevo, SimpleTexting, Customer.io - evals/evals.json: 6 evals covering getting started, abandoned cart, TCPA compliance, opt-out diagnosis, A2P throughput, emoji segment cost New integration docs: - tools/integrations/twilio.md - tools/integrations/postscript.md - tools/integrations/attentive.md - tools/integrations/plivo.md - tools/integrations/audiencetap.md Registry + marketplace wiring: - tools/REGISTRY.md: 5 new entries + new SMS / Messaging category section - .claude-plugin/marketplace.json: bumped to 2.1.0, SMS added to plugin description - VERSIONS.md: sms 1.0.0 + 2.1.0 changelog entry - README.md: skill table re-sorted via sync-skills.js, sms added to ASCII flow All 41 skills pass validation. sync-skills.js is idempotent on current state. Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
3.6 KiB
Plivo
Cloud communications API platform — SMS, MMS, voice, WhatsApp. Direct Twilio competitor with similar pricing and developer-first positioning.
Capabilities
| Integration | Available | Notes |
|---|---|---|
| API | ✓ | REST API |
| MCP | - | Not available |
| CLI | - | None official |
| SDK | ✓ | Node, Python, Ruby, PHP, Java, Go, .NET |
Authentication
- Type: Basic auth with Auth ID + Auth Token
- Header:
Authorization: Basic base64(AuthID:AuthToken) - Get credentials: https://console.plivo.com → Account → Account Settings
- Note: Subaccounts available for isolating environments or customers
Common Agent Operations
Send SMS
POST https://api.plivo.com/v1/Account/{AuthID}/Message/
{
"src": "+15559876543",
"dst": "+15551234567",
"text": "Hello from Plivo"
}
Send MMS
POST https://api.plivo.com/v1/Account/{AuthID}/Message/
{
"src": "+15559876543",
"dst": "+15551234567",
"text": "Check this out",
"type": "mms",
"media_urls": ["https://example.com/image.jpg"]
}
Bulk send (powerpack)
Use Plivo's Powerpack feature to send from a pool of numbers with sticky sender + automatic A2P registration. Configured in console; messages then sent with powerpack_uuid instead of src.
POST https://api.plivo.com/v1/Account/{AuthID}/Message/
{
"powerpack_uuid": "...",
"dst": "+15551234567",
"text": "Hello"
}
Get message details
GET https://api.plivo.com/v1/Account/{AuthID}/Message/{MessageUUID}/
List messages
GET https://api.plivo.com/v1/Account/{AuthID}/Message/?limit=20&offset=0
Rent a phone number
# Search available
GET https://api.plivo.com/v1/Account/{AuthID}/PhoneNumber/?country_iso=US&type=local
# Rent
POST https://api.plivo.com/v1/Account/{AuthID}/PhoneNumber/{NumberID}/
Configure inbound message webhook on an Application
POST https://api.plivo.com/v1/Account/{AuthID}/Application/
{
"app_name": "SMS Receiver",
"message_url": "https://your-app.com/sms-webhook",
"message_method": "POST"
}
Then assign the application to the phone number.
A2P 10DLC registration (US)
Configured through console UI under Compliance. Programmatic registration available for high-volume customers via dedicated API endpoints (request access).
API Pattern
REST + JSON. Pagination via limit + offset. Webhook callbacks for inbound messages and delivery status (configured per-application).
Pricing
- US 10DLC SMS: $0.0055/msg (typically lower than Twilio)
- US toll-free SMS: $0.0055/msg
- US short code SMS: similar + monthly lease
- MMS: ~$0.02
- Carrier surcharges layered on top
- Phone number rental: ~$0.80/mo local, ~$1/mo toll-free
Plivo typically prices 5–20% under Twilio at the per-send level. Less of an ecosystem advantage but real cost savings at high volume.
Rate Limits
- Default: 1 msg/sec
- Powerpacks scale throughput based on number pool size and A2P trust
- Short codes: 100+ msg/sec
When to Use
- Custom SMS build, want a Twilio-like API with lower cost
- High-volume sending where the per-message delta matters
- Want bulk sending with sticky sender via Powerpack
- B2B SaaS embedding SMS or transactional/auth at scale
When NOT to Use
- DTC ecom marketing flows — Klaviyo, Postscript, Attentive
- Ecosystem matters more than price — Twilio's broader product surface (Voice, Studio, SendGrid, Segment, etc.) wins
- Need mature WhatsApp Business — Twilio has deeper WhatsApp tooling
Relevant Skills
- sms
- onboarding (post-signup notifications)