The RCS API
for Developers

Build, test, and scale RCS and SMS in one API — send your first message in minutes, not weeks.

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Built by engineers from top companies, backed by the best

SMS

RCS

Developing interactive messaging experiences starts with RCS

RCS transforms simple text into interactive experiences with rich cards, high resolution photos and video, and quick replies. Without ever leaving their messaging app, users can enjoy seamless purchase journeys, instant surveys, and personalized support.

Try it out

We get your RCS agent 2-3x faster

With Pinnacle, we get you up and running in less than an hour and a live agent in 4 weeks by automating compliance on your behalf

Intuitive API & SDKs

Send and receive messages with ease.

from rcs import Pinnacle

client = Pinnacle(
    base_url="https://api.pinnacle.sh",
    api_key=
)

client.messages.rcs.send(
    request={
        "from_": "agent_pinnacle",
        "options": {
            "validate": False
        },
        "to": "+14154746461",
        "quick_replies": [
            {
                "type": "openUrl",
                "payload": "https://www.pinnacle.sh/",
                "title": "Open Url"
            }
        ],
        "text": "Check out our website for more information!"
    }
)

Deliverability

Every message delivered

Identify if a phone number can receive RCS ahead of time, number lookup for deliverability, and get higher throughputs with secondary vetting and short codes

Collaboration

View conversations in real time

Send RCS and SMS messages, share conversations and specific messages with your team, and add contact info and notes for each conversation

Development

Elevate your developer experience

With webhooks that make the transition from dev to prod seamless to our end-to-end compliance API, Pinnacle makes it easy to iterate on new messaging flows.

Start Messaging Today

Start with SMS/MMS or unlock the full power of RCS messaging

MonthlyAnnualSave 10%

Essentials

For teams getting started with business messaging

10DLC & Toll-Free messaging
Fast compliance timelines
Webhooks
Test numbers
Audiences & Contacts
Conversations
Number Intelligence/Lookup
Development teams
Storage
Comprehensive logs

$50/month

Start Sending

Pro

For teams ready to scale with RCS

Everything in Essentials
RCS messaging access
1 RCS agent included
Unlimited RCS agent registrations
Slack support (< 3 hours)
Dedicated support engineer
Expedited approvals (white glove)
RCS test agents
Full RCS features
Custom volume-based pricing

$500/month

Get Started

Enterprise

For organizations with custom needs

Everything in Pro
Custom SLA guarantees
Custom volume-based pricing
Dedicated account manager
SSO/SAML authentication
Advanced analytics & reporting
Priority carrier relationships
Audit logs & compliance certs
24/7 priority support

Custom

Per-Message Pricing

Flat rates with carrier fees already included. The price you see is the price you pay — no surcharges, no surprises.

SMS$0.015Plain text messages

MMS$0.027Images, video & group

RCS Text$0.025Rich text with branding

RCS Media$0.035Cards, carousels & media

Transparent pricing. No hidden fees. No dark patterns.

Most messaging providers advertise a low per-message rate, then tack on carrier surcharges, regulatory fees, and throughput costs after the fact. With Pinnacle, every carrier and platform fee is already built into the prices above — what you see is exactly what you pay. No line items to reconcile, no end-of-month surprises.

Prices are per segment. Sending high volume? Pro and Enterprise plans include custom volume-based pricing — talk to us for a quote.

Got a lower quote from another provider? Let us know — we can match or beat it.