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Zernio WhatsApp API

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Messaging and marketing APIs for AI agents · Official-source review 2026-10-09

Zernio provides APIs, SDKs, MCP and CLI access for social publishing, messaging, ads and blogs. Its communications offering includes WhatsApp, phone numbers, calls and SMS, with channel-specific usage charges.

Updated 2026-10-09View sources
Official website
Category
Messaging and marketing APIs for AI agents
Free access
First two connected accounts free with no card; this is not free phone numbers, WhatsApp, calls, ads or all messaging usage.
API access
REST, eight SDKs, hosted OAuth MCP and CLI advertised for publishing, inbox, analytics and communications workflows.

Is Zernio WhatsApp API right for you?

A good fit for

Relevant to developers who can handle channel policies, recipient consent, approvals, billing and rate limits.

Before you choose

Marginal account rates: accounts 3–10 $6/month each, 11–100 $3, 101+ $1; ten-account example totals $48. First 10,000 sent DMs/month free, then metered. X API costs pass through separately; phone numbers, calls, WhatsApp and ads have additional country/usage rates not fully captured. Number availability and carrier documents vary by country. Unlimited posts do not remove platform restrictions. Enterprise custom terms past 2,000 accounts. No account connected, message/call sent, campaign purchased or API tested.

Workflow and handoff

Confirm the exact channel and country rates, connect a test account, and require approval before sending messages or spending advertising budget.

Pricing and practical limits

Marginal account rates: accounts 3–10 $6/month each, 11–100 $3, 101+ $1; ten-account example totals $48. First 10,000 sent DMs/month free, then metered. X API costs pass through separately; phone numbers, calls, WhatsApp and ads have additional country/usage rates not fully captured. Number availability and carrier documents vary by country. Unlimited posts do not remove platform restrictions. Enterprise custom terms past 2,000 accounts. No account connected, message/call sent, campaign purchased or API tested.

Review method

Official product evidence reviewed on 2026-10-09; product artwork inspected visually. No hands-on vendor application test was performed. Application performance, security claims and plan enforcement were not independently tested.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

CapabilityValueEvidenceChecked
Product workflowZernio provides APIs, SDKs, MCP and CLI access for social publishing, messaging, ads and blogs. Its communications offering includes WhatsApp, phone numbers, calls and SMS, with channel-specific usage charges.Facts sourced2026-10-09
Pricing and restrictionsMarginal account rates: accounts 3–10 $6/month each, 11–100 $3, 101+ $1; ten-account example totals $48. First 10,000 sent DMs/month free, then metered. X API costs pass through separately; phone numbers, calls, WhatsApp and ads have additional country/usage rates not fully captured. Number availability and carrier documents vary by country. Unlimited posts do not remove platform restrictions. Enterprise custom terms past 2,000 accounts. No account connected, message/call sent, campaign purchased or API tested.Facts sourced2026-10-09

Understand the total cost

Zernio WhatsApp API pricing & plans

Connected-account free allowance

Free

First two accounts; separately billed usage excluded

Included scope
Connected-account access

Enterprise

Not listed

Custom terms past 2,000 accounts

Included scope
Governance and custom rates
Explore pricing & history

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The practical questions

Frequently asked questions

Was the application hands-on tested?

No. This listing is based on dated official-source evidence and a visual artwork check. Unconfirmed costs and restrictions are identified explicitly.

What is Zernio WhatsApp API used for?

Zernio provides APIs, SDKs, MCP and CLI access for social publishing, messaging, ads and blogs. Its communications offering includes WhatsApp, phone numbers, calls and SMS, with channel-specific usage charges.

Does Zernio WhatsApp API have a free plan?

First two connected accounts free with no card; this is not free phone numbers, WhatsApp, calls, ads or all messaging usage.. This record lists ongoing free access; check the plan limits before starting.

How much does Zernio WhatsApp API cost?

No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use Zernio WhatsApp API through an API?

REST, eight SDKs, hosted OAuth MCP and CLI advertised for publishing, inbox, analytics and communications workflows.. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

Marginal account rates: accounts 3–10 $6/month each, 11–100 $3, 101+ $1; ten-account example totals $48. First 10,000 sent DMs/month free, then metered. X API costs pass through separately; phone numbers, calls, WhatsApp and ads have additional country/usage rates not fully captured. Number availability and carrier documents vary by country. Unlimited posts do not remove platform restrictions. Enterprise custom terms past 2,000 accounts. No account connected, message/call sent, campaign purchased or API tested.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Official product information

Current official product source read individually; product artwork inspected visually.

Read original source ↗

Facts apply to the named version and check date. Send a sourced correction if something changed.