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UniOne logo

UniOne Pricing

unione.io · Transactional Email · refreshed 2026-05-06
Transactional Email
Free tier
Self-serve checkout
3 tiers
Quick answer

UniOne is a pay-as-you-go API — no signup required. Free credits at signup: 6000 emails/month for 4 months.

Page fetched 2026-05-09 · unione.io · Pay-as-you-go API
UniOne pricing page screenshot — https://unione.io/en/
Source · live pricing page on 2026-05-06

unione.io/en/

Open
Pricing
UniOne pricing
As of 2026-05-09 · unione.io/en/
Pay-as-you-go API
Sign up, get an API key, pay per call

Self-serve checkout with public pricing — an autonomous agent can complete the purchase without a sales call.

Signup: no auth
API key
Instant use
Free credits: 6000 emails/month for 4 months
Open live pricing pageSee agent-readiness analysis
Frequently asked
UniOne pricing FAQ

UniOne pricing starts at $0 per month for the free trial plan; paid plans start at $20/mo. Billed monthly.

UniOne is priced per usage rather than per seat. Sign up for an API key, then pay per call.

Yes — UniOne offers free starter access on signup. 6000 emails/month for 4 months.

Yes — UniOne's purchase motion is self-serve. No demo is required.

xpay scored UniOne as agent-ready: every advertised plan is self-serve with public pricing. UniOne publishes a pricing page with 3 discoverable plan tier(s). No per-unit price was found on the page; an agent has no direct way to estimate the cost of a single task. Self-serve signup exists alongside a sales-led / custom tier. No public API documentation URL was discovered. A free or freemium tier is offered. For the full purchase simulation see the linked Agent-Ready Index scorecard.

In the Transactional Email category, xpay's Agent-Ready Index lists alternatives ranked by their ability to support AI agent purchase. Visit the agent-readiness scorecard for UniOne to compare with 3 nearest peers.

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Top UniOne alternatives by pricing transparency
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mailchimp.com
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postmarkapp.com
AhaSend pricing
ahasend.com
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zoho.com
Aritic Mail pricing
aritic.com
Sweego pricing
sweego.io
Browse all Transactional Email alternatives →
AI agent readiness
Can an AI agent buy from UniOne?
Agent-Ready Verified

77

/ 100 in xpay's Agent-Ready SaaS Index

UniOne scores 77/100 on xpay's Agent-Ready Index v2: partial pricing visibility; self-serve checkout is available; a public API exists with documentation; usage-based / per-token pricing is published;…

See the full scorecardIncludes the 6-step agent purchase simulation, score breakdown across 7 dimensions, and the one-line fix that would lift UniOne into the Agent-Ready Verified band.
Quick facts
At a glance
Free access

Credits: 6000 emails/month for 4 months

Billing cycle

Monthly

Lowest paid

$20/mo

Self-serve checkout

API key signup

Tier count

2

Pricing model

Pay-as-you-go API

More Transactional Email alternatives
Most agent-ready

Doppler Relay

dopplerrelay.com
65

SMTP2GO

smtp2go.com
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Kingmailer

kingmailer.co
59

SMTP

smtp.com
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SocketLabs

socketlabs.com
50
UniOne pricing summary derived from a live read of https://unione.io/en/ on 2026-05-06. For the agent-readiness assessment — including the 6-step purchase simulation and a per-dimension scorecard — see xpay's Agent-Ready SaaS Index entry for UniOne.

Explore SaaS pricing across categories

25,480+ SaaS scored on agent-buyability — browse by readiness band, category, or jump straight to a pay-per-run tool on xpay.tools.

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