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The Buffer Alternative
That Actually Has an API

Buffer deprecated its public API in 2019. It's rebuilding one, but it's not public yet. Zernio is API-first with instant access, 99.97% uptime SLA, and 7-15x cheaper at scale.

No credit card required • Instant API key • Buffer has no API

Zernio: API key auth
// Simple API key authentication
fetch('https://zernio.com/api/v1/posts', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    platforms: ['instagram', 'twitter', 'linkedin'],
    content: 'Hello world!'
  })
})
⚠️

The Fatal Flaw: Buffer Has No Public API

In 2019, Buffer deprecated its public API that had served 47,000+ API clients. As of December 2025, Buffer has no public API available. They're rebuilding a GraphQL API, but it's only in early access - not publicly available.

"We don't currently have a public API available, but we're actively working on building a new one..."

Zernio: Sign up → Settings → API → Copy key. Available NOW on all plans including free.

API vs No API

Buffer

  • NO PUBLIC API - deprecated in 2019
  • New GraphQL API in development - not public yet
  • Per-channel pricing: $5/channel adds up fast
  • 50 channels = $250+/month (vs Zernio's $41/mo)
  • No published rate limits for new API
  • No uptime SLA - rebuilding from scratch
  • 6+ year API gap (2019-2025+)

Zernio

  • Production-grade API - available NOW
  • Instant API key on all plans (even free)
  • Flat pricing: $41/mo for 50 profiles
  • No per-channel fees - predictable costs
  • Published rate limits: 60-1200 req/min
  • 99.97% uptime SLA - publicly documented
  • 2+ years battle-tested (2023+)

Zernio wins by default - Buffer has no public API. Zernio has a production-grade API with instant access.

Feature Comparison

FeatureZernioBuffer
Public APIYes (all plans)NO - deprecated 2019
API statusProduction (2+ years)Rebuilding (not public)
API access time30 secondsN/A - no public API
50 profiles cost$41/mo$250+/mo
Pricing modelFlat tiersPer-channel ($5/ch)
Rate limits60-1200 req/minNone published
Uptime SLA99.97% (published)None
Free planYes (with API)Yes (no API)
UI dashboardBasicExcellent
AI assistantNoYes (paid)
AnalyticsAdd-on (from $10/mo)Built-in (Team+)
Support reputationGoodWorld-class

The Buffer API Tragedy

2019: API Deprecated

Buffer made the controversial decision to shut down its public API that had served 47,000+ API clients. Reasons included Cambridge Analytica fallout, compliance burden, and competitive concerns about third-party tools.

After an audit of existing API integrations, we've chosen to revoke access to third-party tools that provide similar functionality to Buffer's core product...

2025: Rebuilding (Not Public)

In July 2025, Buffer announced it's rebuilding a new GraphQL-based API. Current status: early access only, not publicly available, no published rate limits or SLA, uncertain timeline ("2025-2026").

For production use today, Zernio is the only option with a working API.

Production-Ready API

Working API Today
Zernio has a production-grade REST API available right now. Buffer's API was deprecated in 2019 and isn't public yet. For any automation or integration, Zernio is the only choice.
Instant API Access
Sign up for Zernio, go to Settings, copy your API key. 30 seconds. Buffer requires waiting for early access to an API that isn't public yet.
99.97% Uptime SLA
Zernio publishes a 99.97% uptime guarantee. Buffer is rebuilding from scratch - no SLA, no guarantees, no production track record for the new API.
7-15x Cheaper at Scale
Zernio: $41/mo for 50 profiles. Buffer: $5/channel × 50 = $250+/mo. Buffer's per-channel model doesn't scale for agencies.
Published Rate Limits
Zernio: 60-1200 req/min by tier, publicly documented. Buffer: no published limits for the new API. Old API was 60 req/min.
2+ Years Battle-Tested
Zernio's API has been in production since 2023. Buffer's new API hasn't launched publicly yet. Maturity matters for production apps.

Which One?

Choose Zernio if you:

  • Need API automation today
  • Can't wait for Buffer's API rebuild
  • Want 7-15x lower costs at scale
  • Value published uptime guarantees
  • Need programmable posting for SaaS
  • Want flat, predictable pricing
  • Prefer instant API access

Stay with Buffer if you:

  • Only need UI-based scheduling
  • Value Buffer's world-class support
  • Want AI writing assistance
  • Don't need API access
  • Prefer established brand reputation
  • Can accept per-channel pricing
  • Are willing to wait for API rebuild
💡

Need API automation?

If you're a Buffer user who needs API access, Zernio is your only option. Buffer's API doesn't exist publicly. Sign up for Zernio, copy your API key, and start automating - today, not "someday."

Zernio's free plan includes API access. Test it before you commit.

Common Questions

Does Buffer really have no API?
Correct. Buffer deprecated its public API in 2019 that served 47,000+ clients. They announced in July 2025 they're rebuilding a GraphQL API, but as of December 2025, it's only in early access - not publicly available. For production use, Zernio is the only option.
Why did Buffer kill its API?
Buffer cited Cambridge Analytica fallout (2018), compliance burden, and competitive concerns. They admitted they couldn't offer the developer experience customers deserved without massive investment. The practical result: 6+ years without a public API.
How is Zernio 7-15x cheaper at scale?
Buffer charges $5/channel, so 50 channels = $250+/mo. Zernio's Accelerate plan is $41/mo flat for 50 profiles. At scale, per-channel pricing is devastating. Zernio's flat tiers are designed for agencies managing many accounts.
When will Buffer's new API launch?
Buffer announced a 2025-2026 window but hasn't committed to a specific date. The API is in early access with no published rate limits, SLA, or pricing. If you need API access today, Zernio is the only production-ready option.
Is Buffer better for UI-only use?
For UI-focused teams who don't need API access, Buffer has an excellent reputation. Their visual calendar, AI assistant, and customer support are world-class. If you only need manual scheduling for 1-5 accounts, Buffer works well.
Can I switch from Buffer to Zernio easily?
Yes. Zernio's free plan includes API access so you can test before committing. The setup takes 30 seconds - sign up, copy your API key, and start posting. No waiting lists, no approval process.

Ready for an API that exists?

Start with the free plan. Get an instant API key. Don't wait for Buffer's "coming soon."

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