Wabi is a platform for running WhatsApp Business on Meta's Cloud API: it hosts the webhooks, keeps every conversation in a live team inbox, localizes templates and tracks their Meta approval, runs AI support agents with traces, and estimates usage and Meta costs. Everything is also available through a REST API, an MCP server and a CLI.

Do I need my own WhatsApp Business Account?

Yes, to message real customers. Wabi works with your own WhatsApp Business Account (WABA), so the phone numbers, the customer relationships and the Meta assets stay yours. You can disconnect at any time. Until you connect one, use the sandbox number.

Who pays Meta's message fees?

You do, directly to Meta, through the payment method on your WhatsApp Business Account. Wabi never bills Meta's fees and never marks them up; it shows estimates from Meta's published rates so you can see what you spend. Our plans charge only for the platform: messages processed and AI replies.

A simulated WhatsApp number every organization gets on every plan. It behaves like Meta (sent, delivered and read receipts, customer replies, template review after about a minute, failure numbers ending in 0000) but nothing reaches real WhatsApp users and nothing is charged. Use it to try the inbox, agents, templates, webhooks, the CLI and MCP before Meta approves your account.

Embedded Signup or manual connect?

Embedded Signup is Meta's guided flow: you sign in with Facebook, pick or create your WhatsApp Business Account and number, and Wabi gets access in a few clicks. Manual connect takes a WABA id and a system-user access token from Meta Business Manager, for accounts you already run or when Embedded Signup is not available to you. Both end in the same place: webhooks subscribed and the number in your inbox.

Which AI models do the agents use?

Anthropic's Claude by default, configurable per agent. On Growth and above you can bring your own model key; replies on your key are not counted against your plan's AI replies. Template localization drafts are written by Claude too.

Who owns the data, and can I export it?

You do. Wabi processes your messages and contacts on your behalf; you can export them, disconnect your WhatsApp account without losing history, and delete your organization. History is kept 30 days on Free, a year on paid plans, and as agreed on Enterprise.

Can I use it from code or a coding agent?

Yes. Every dashboard action is an op: POST /api/v1/{op} over REST, a tool on the MCP server at /api/mcp, and a command in the CLI (npx @meterapp/wabi). Customer webhooks send signed events to your own endpoints.

How much does it cost?

Free includes the sandbox, one live number, 1000 messages and 100 AI replies a month. Starter is $29, Growth $99 and Scale $299 a month, with more numbers, members, messages and AI replies. Past the allowance, paid plans pay $1 per 1,000 messages and $0.02 per AI reply up to a budget cap you set. Meta's fees are separate, billed by Meta at cost.

For WhatsApp Business on Meta's Cloud API

The operating platform for WhatsApp Business

Wabi connects your own WhatsApp Business Account to Meta's Cloud API and runs everything around it: managed webhooks, a live team inbox, localized templates through Meta approval, and AI agents that answer routine questions with sources and hand the rest to your team.

For support teams, SaaS products and operators who talk to customers on WhatsApp, and the developers and agents who automate it.

Get started free Try the sandbox

Free plan, no card. Meta bills its own message fees to your account, at cost; we never mark them up.

ML

Maria LópezInbox

Window open · 23 h

Hi! My order 4821 was due Tuesday and hasn't arrived.

Sorry about the wait, Maria. Order 4821 left our warehouse on Monday and the carrier shows it out for delivery today.

AI agent · Sources: shipping policy · order lookup

Can you send it to my office instead?

Changing the address needs someone from the team. I've passed this on with a summary; they'll reply here shortly.

Escalated to Support · handoff summary attached

Hi Maria, done: it goes to your office tomorrow morning.

You

Illustrative conversation in the Wabi inbox

The problem

Meta's APIs are powerful. Running a business on them is a project.

The Cloud API sends and receives messages. Everything a team needs around it, you build and operate yourself.

Webhooks you have to host

A public HTTPS endpoint that verifies Meta's signatures, answers fast, stores every event before processing, survives duplicates and out-of-order statuses, and never drops a message when your app is down.

Templates, one language at a time

Every message outside the 24-hour window needs an approved template. Each language is its own submission, with its own approval, rejection reason, quality rating and pause.

No inbox, no turn state

Meta gives you message events, not conversations. Who answered, who owns it, which customers are waiting and whose window closes in an hour is yours to model.

Agents you can trust

An LLM can reply. Answering from your documents, calling your tools, knowing when to hand off, and showing exactly what it did and what it cost is the hard part.

How it works

From a sandbox number to a live support line

1
Start in the sandbox, connect your number
Every organization gets a simulated number to try everything. When you are ready, connect your own WhatsApp Business Account with Meta's Embedded Signup or with a WABA id and system-user token.
2
Messages flow into a live inbox
Wabi subscribes to your account's webhooks, verifies, stores and deduplicates every event, and updates the inbox in real time with delivery and read receipts.
3
Templates localized and approved
Write a template once, generate each language with AI, review it, submit every locale to Meta and track each approval, rejection and quality change.
4
An AI agent takes the routine
It answers from your knowledge sources with citations, calls the tools you allow, and hands a conversation to your team with a summary when it should not answer.

Sandbox

Try everything before Meta approves anything

Meta's business verification and app review take days. The sandbox number works the minute you sign in, and behaves the way Meta does.

Sends report sent, delivered and read within seconds, with Meta-style pricing estimates.
Test customers write back, so the inbox, agents and your webhooks see real inbound traffic.
New templates are reviewed after about a minute: approved, or rejected with a reason.
Numbers ending in 0000 fail like an undeliverable WhatsApp number, to test your error handling.

How the sandbox works

The sandbox from a terminal

npx @meterapp/wabi login                 # browser sign-in, saves an API keynpx @meterapp/wabi get_sandbox           # your simulated number and test customersnpx @meterapp/wabi simulate_inbound_message --text "Hi, where is my order?"npx @meterapp/wabi get_onboarding        # what is left to set up, and how

What you get

Everything around the Cloud API, in one place

One data model underneath: every message, contact, template, agent session and cost belongs to the same conversation history.

Live team inbox

Real-time conversations with delivery and read receipts, assignment, internal notes, the customer's profile and their 24-hour window at a glance. Queues for unanswered, escalated and expiring conversations.

Contacts, consent and segments

One profile per customer with attributes, language, consent records and opt-outs. Rule-based segments, such as everyone whose window closes in two hours or who prefers Spanish.

Templates with AI localization

One template group per message, a localization per language. AI drafts translations that keep every variable; each locale is submitted to Meta and its approval tracked on its own.

Bulk sends to a segment

Send an approved template to a segment with the safeguards built in: consent and opt-outs checked, duplicates skipped, a cost estimate before you start.

WhatsApp Flows

Send a Flow you published in Meta by its id, store every submission, and map the answers to contact fields.

Managed webhooks

No server to run for Meta. Your own systems subscribe to signed Wabi events, such as message.received or conversation.escalated, with retries and a delivery log.

Usage and Meta cost estimates

Messages, AI replies and Meta's per-message charges by number, category and template, estimated from Meta's rate cards and shown at cost.

Teams, roles and audit

Viewer, member, admin and owner roles, teams, WhatsApp accounts and agents shared only with the people who need them, scoped API keys and an audit log.

AI agents

Agents that cite their sources and know when to stop

Deploy a support agent on any number. Every turn is traced, so you can see what it read, what it called, what it said and what it cost.

Answers from your knowledgePoint it at your docs and help articles; replies cite the sources they used.

Tools you allowGive it the lookups and actions it may call, each with its own permission.

Escalation with a handoffWhen evidence is thin, the customer asks for a person or the topic is sensitive, it hands off with a summary, the sources and what it tried.

Session explorer and tracesEvery session's turns, retrieved sources, tool calls, tokens, latency and cost, and why it stopped.

Claude by default, your key on GrowthAgents run on Anthropic's Claude unless you choose otherwise. From Growth up, bring your own model key; those replies do not count against your plan.

Humans stay in controlTake over any conversation from the inbox; the agent steps back and the customer sees one thread.

Everything is an API

52 operations, every one on REST, MCP and the CLI

Every action in the dashboard is an op with one schema, served as REST, as an MCP tool and as a CLI command. Your backend, your scripts and your coding agent use the same API your team clicks through.

curl -X POST https://getwabi.dev/api/v1/simulate_inbound_message \  -H "Authorization: Bearer wabi_…" \  -H "Content-Type: application/json" \  -d '{"text":"Hi, where is my order?"}'

claude mcp add --transport http wabi https://getwabi.dev/api/mcp

npx @meterapp/wabi login                 # browser sign-in, saves an API keynpx @meterapp/wabi get_sandbox           # your simulated number and test customersnpx @meterapp/wabi simulate_inbound_message --text "Hi, where is my order?"npx @meterapp/wabi get_onboarding        # what is left to set up, and how

{  "id": "evt_01JB7X4Q2W9N3K5R8T6Y",  "type": "message.received",  "occurred_at": "2026-10-23T09:41:07.000Z",  "org_id": "6f1c2e0a-4b7d-4c2e-9a51-0d3b8e7f9a10",  "subject": {    "type": "conversation",    "id": "0b8d4e2c-1f3a-4a57-9c6e-2d7f5b1a8e90"  },  "data": {    "message_id": "4c2f9a1e-7d3b-4e8a-b5c6-1a2d3e4f5a6b",    "wamid": "wamid.HBgLMTU1NTAxMDAwMDEVAgASGBQzQTk…",    "phone_number_id": "9a8b7c6d-5e4f-4a3b-8c2d-1e0f9a8b7c6d",    "contact": {      "id": "3e2d1c0b-9a8f-4e7d-b6c5-a4b3c2d1e0f9",      "wa_id": "15550100001",      "name": "Sandbox customer"    },    "type": "text",    "text": "Hi, where is my order?",    "window_expires_at": "2026-10-24T09:41:07.000Z"  }}

Sandbox2

The simulated number every organization gets, for trying everything before Meta.

get_sandbox simulate_inbound_message

Events2

The organization's event stream.

list_events get_event

Organization7

Settings, onboarding and the activity log.

get_organization update_organization list_activity get_onboarding get_referral_stats get_profile update_profile

Members and sharing13

Members, teams, resource sharing and the audit log.

list_members list_invites list_teams create_team update_team delete_team set_team_member remove_team_member list_resource_access set_resource_visibility share_resource unshare_resource list_audit_log

API keys3

Organization keys for your backend, the CLI, MCP and CI.

list_api_keys create_api_key revoke_api_key

Billing11

Plans, prices, checkout links, the budget cap and the subscription.

get_pricing get_account get_billing create_checkout_link subscribe cancel_subscription resume_subscription set_budget_cap claim_checkout create_billing_portal_link get_billing_link

Feedback14

Request features, report issues and upvote what matters to you.

list_feedback get_feedback list_my_feedback request_feature report_issue upvote_feedback remove_feedback_vote comment_on_feedback set_feedback_subscription submit_review list_reviews update_feedback respond_to_feedback respond_to_review

Machine-readable: llms.txt, OpenAPI 3.1 and the API reference, all generated from the same registry.

Pricing

Pay for what the platform does, never a markup on Meta

Plans include messages and AI replies. Meta's own per-message fees go on your WhatsApp Business Account's bill from Meta, exactly as Meta charges them.

Free

For trying Wabi on one number.

Free

1,000 messages a month100 AI replies a month

Starter

For a small team answering customers on one number.

$29/month

10,000 messages a month1,000 AI replies a month

Growth

For businesses automating support and outreach across numbers.

$99/month

50,000 messages a month5,000 AI replies a month

Scale

For operators running several brands, markets or locations.

$299/month

250,000 messages a month25,000 AI replies a month

Compare plans

FAQ

Questions teams ask first

Send your first message in five minutes

Every organization gets a sandbox number. Sign in, message a test customer, watch the reply land in the inbox, then connect your own WhatsApp Business Account when you are ready.

Get started free Read the quickstart