CARRA27 is free— every model, every agent, every integration.Start free →

Carraggon CARRA27 · the model stack behind CarraCSR

Free — all models, all agents

Twelve models. Six agents. One conversation.

CARRA27 is Carraggon's layered intelligence stack. Each layer is specialised, measured and independently tuned — so your caller hears one calm voice while twelve models and a crew of agents do the work behind it.

12

specialised models in the stack

~380ms

median voice response latency

60+

supported integrations

$0

to run the whole stack

The CARRA27 models

Every layer does one job, exceptionally well.

Tap any model to see what it is responsible for and how it is measured.

Features

What makes CARRA27 different.

Layered, not monolithic

Twelve specialised models instead of one general one. A failure is isolated to a layer, never the whole call.

Grounded by default

Pricing, policy and availability answers are retrieved and verified before they are spoken.

Measured per layer

Latency, accuracy and booking impact are tracked model by model, so tuning is targeted.

Model-agnostic

Each layer swaps to the best available model as new ones ship — no rebuild, no migration.

Multi-lingual

English and Spanish out of the box, with per-caller language detection mid-conversation.

Private by design

Per-tenant isolation, PII redaction before storage, and no training on your customer data.

Multi-agentic CarraCSR

A crew of agents, not a single bot.

CarraCSR runs six agents on top of CARRA27. They share one memory and one orchestrator, hand work to each other mid-conversation, and pull a human in the moment it matters.

Receptionist agent

Greets, screens and never puts a caller on hold.

VOICE · TRIAGE

CSR agent

Qualifies the job, quotes what is true, books it on the board.

BRAIN · SCHED

Dispatcher agent

Balances crews, drive time and priority across the day.

SCHED · OPS

Sales agent

Chases estimates, revives aged leads, sells memberships.

CONVERT · REACH

Follow-up agent

Reminders, on-the-way texts, review requests, rebooks.

REACH · MEMORY

Supervisor agent

Scores every call live and pulls a human in when risk appears.

QA · GUARD · HANDOFF

How the hand-off works

01

Orchestrator receives

The inbound call, text or form lands on the orchestrator with caller memory attached.

02

Agent selected

TRIAGE picks the right agent — emergency goes to dispatcher, quote goes to sales.

03

Agents collaborate

Agents call each other as tools mid-conversation; the caller only ever hears one voice.

04

Human or done

Supervisor scores the call live and warm-transfers with context if risk or VIP rules fire.

Integrations

60+ integrations, plus anything with an API.

CARRA27 writes where your team already works — field service software, CRM, telephony, payments and reviews. Already running Sameday, Avoca or another answering service? CarraCSR sits alongside it and takes the overflow, or replaces it entirely on your timeline.

Field service platforms

ServiceTitanHousecall ProJobberFieldEdgeFieldRoutesServiceFusionWorkizSuccessWareService FusionServiceMinder

AI & answering services

SamedayAvocaDelight.aiRubyAnswerConnectSmith.aiNumaPodium AI

CRM & sales

SalesforceHubSpotZoho CRMPipedriveMicrosoft DynamicsCloseCopper

Telephony & messaging

TwilioRingCentralVonageDialpadAircall8x8TelnyxOpenPhone

Scheduling & calendars

Google CalendarMicrosoft 365CalendlyAcuityServiceTitan Dispatch Board

Payments & finance

StripeSquareQuickBooksXeroWisetackGreenSky

Marketing & reviews

Google Business ProfilePodiumBirdeyeNiceJobMailchimpKlaviyoAngiThumbtack

Ops & data

SlackMicrosoft TeamsZapierMakeSnowflakeBigQueryWebhooks & REST APICarraggon MCP Server
Request an integration

Pricing

CARRA27 is free.

No licence fee for the models, no per-agent charge, no integration fee. You get the whole stack and the whole CarraCSR agent crew at no cost — we only ever talk about money once it is booking jobs for you.

  • All twelve CARRA27 models
  • The full multi-agentic CarraCSR crew
  • Unlimited concurrent calls and texts
  • Every integration in the catalog
  • Guided onboarding and script build
  • Live call scoring and transcripts
Start free

No card required. Usage-based telephony minutes billed at cost.

The best model stack in the trades, at no cost.