The best WhatsApp Coexistence providers

1. EasyCoexistence, for a business or agency that wants the connection and nothing else

We are first on our own list, so read the rest and check the sources. The case is narrow and checkable: the lowest published entry price here, a per-number model with no seats and no plan tiers, message events delivered from Meta straight to your own system rather than into another inbox, continuous monitoring that reads Meta's own disconnection reason, and an MCP connector so an AI assistant can run the whole thing.

2. YCloud, for a team that wants a platform around it

The closest alternative on positioning: they support Coexistence openly and commit to zero mark-up on WhatsApp messages, which are the two things that matter most. The difference is the bill. Their paid plans start at US$ 39 a month, structured by user seats, channels and AI credits, before a single number is counted. Ours starts at US$ 9 per connected number with no seats and no credits, so a business with one to three numbers pays a fraction, and an agency with forty pays a rate that falls to US$ 2.

3. SleekFlow, for a team that lives in a shared inbox

They list Coexistence among their solutions and the product is an omnichannel inbox with campaigns and automations, priced per user seat with a minimum seat count and an add-on for additional WhatsApp numbers. That shape suits a sales or support team that wants everyone working in one place. It suits a multi-location business badly, because seats and number add-ons both scale against you.

4. 8x8, for an enterprise already buying communications

Their Coexistence documentation is the clearest of any provider and worth reading whoever you choose, including us. The product is enterprise CPaaS sold alongside contact centre and voice, through account teams and commercial arrangements, which is the right fit if you are already consolidating communications spend. For one number and a webhook it is a heavy way to get there.

5. Dualhook, a direct specialist

The same architecture we use: Coexistence with webhook routing straight from Meta, no message storage, at a published price. Their published figure is US$ 12 per number against our US$ 9, they warn at thirteen days that the clock is running rather than reading Meta's own disconnection reason, and their documentation does not describe an MCP connector.

What to ask any of them before you sign

Four questions that separate the providers on this list, and that a sales page will not answer on its own.

Keep reading

• The best WhatsApp Cloud API providersWhatsApp Cloud API providers compared by how they charge: per message, per seat, or per number. Prices from their own published pages.
• EasyCoexistence vs YCloudBoth support Coexistence with no per-message markup. YCloud sells a platform in seat-based tiers; EasyCoexistence sells infrastructure per number.
• EasyCoexistence vs SleekFlowSleekFlow is a seat-priced messaging platform with a minimum seat count. EasyCoexistence charges per connected number with no seats at all.
• EasyCoexistence vs 8x88x8 is enterprise CPaaS with good Coexistence documentation. EasyCoexistence is the self-serve product that does what those docs describe.
• WhatsApp Coexistence: the app and the API on one numberCoexistence runs the WhatsApp Business app and the Cloud API on the same number at once. What it changes, what it does not, and how a number gets connected.
• What WhatsApp Coexistence costs, provider by providerWhat each provider charges to hold WhatsApp numbers, at one, ten and fifty numbers. Figures from their own pricing pages, September 2026.