Sendblue Pricing in 2026: Full Breakdown
TL;DR
As of August 2026, Sendblue publishes three tiers: a $0 sandbox, an AI Agent plan at $100 per line per month that is inbound-first with 1,000 inbound contacts a day, and a custom-priced Enterprise tier. Full outbound messaging sits only on Enterprise, so if you are pricing cold outreach, the $100 headline is not your number.
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What does Sendblue cost in 2026?
As of August 2026, Sendblue publishes three tiers: a $0 Free Sandbox, $100 per line per month AI Agent plan, and custom Enterprise pricing. Full outbound messaging is Enterprise-only.
The $100 AI Agent plan is inbound-first. If you are pricing cold outreach, that headline number does not cover it: the outbound capability most sales teams shop for requires an Enterprise quote.
| Plan | Price (August 2026) | Scope | Key limits |
|---|---|---|---|
| Free Sandbox | $0 | Testing, inbound-first | Shared number, up to 10 verified contacts |
| AI Agent | $100/line/mo | Production, inbound-first | 1,000 inbound contacts/day per line |
| Enterprise | Custom quote | Full outbound messaging | Multiple lines, account manager |
What does the $100 AI Agent plan include?
Sendblue's $100 includes a dedicated number, 1,000 inbound contacts a day, webhooks, media, typing indicators, and priority support. Unlimited messaging per line, metered only by daily contact limits to prevent spam.
Fallback is handled cleanly: no iMessage means automatic RCS, then SMS, from the same number at no extra charge.
Sendblue does not support message blasts at all, by policy. Number porting is available but adds 3 to 5 days to setup.
- No per-message fees, no carrier surcharges, no A2P registration required
- Automatic RCS then SMS fallback from the same number at no extra charge
- No message blasts on any tier, by policy
Why can't outbound teams price Sendblue from the website?
The outbound tier is quote-only, which is a standard move in this category called the quote wall. Sendblue publishes a $100 number, holds the outbound price for the sales call.
The Enterprise tier lists full outbound messaging, multiple dedicated lines, and a dedicated account manager, with volume-based pricing and no number attached.
Competitor Tuco AI's comparison page (May 15, 2026) estimates Sendblue Enterprise at $12,000 per year, though that is a rival's claim. Sendblue itself publishes only the floor: outbound costs more than $100 per line per month.
Sendblue's inbound posture and compliance depth
Sendblue is designed for inbound: an AI support agent, a concierge line, or reply-heavy nurture at $100 per line per month. The plan includes no setup fee, month-to-month billing, and a sandbox to build in before paying. Developer tooling includes Node.js and Python SDKs, a CLI, and self-serve signup.
The tradeoff is the quote wall on outbound: the $100 plan will not support cold outreach, and the tier that does carries no published price.
Comparing pricing: inbound versus outbound
Blue Reacher publishes one price: $199 per line per month, or $1,949 per year ($162.50/mo with annual). Lines carry unlimited iMessages, no A2P registration, white-glove setup, and pace at 50 opted-in / 30 cold new contacts a day to stay deliverable; replies are never metered.
The $100 AI Agent plan is inbound-only. For outbound sales, compare Blue Reacher's published rate against a Sendblue Enterprise quote; no benchmark number exists.
Frequently asked questions
How much does Sendblue cost per month in 2026?
As of August 2026, Sendblue's published pricing is $0 for the Free Sandbox, $100 per dedicated line per month for the AI Agent plan, and custom volume-based pricing for Enterprise. The AI Agent plan is inbound-first with 1,000 inbound contacts a day; full outbound messaging is Enterprise-only.
Does Sendblue charge per message?
No. Sendblue advertises flat pricing per line with no per-message fees, no carrier surcharges, and unlimited messaging on each line. The real meter is a daily limit on contacts messaged per phone line, which Sendblue says exists to prevent spam; you raise it by adding lines.
Can I run cold outreach on Sendblue's $100 plan?
No. The $100 AI Agent plan is inbound-first, and Sendblue lists full outbound messaging as an Enterprise feature with custom pricing. Sendblue also does not support message blasts on any tier, by policy.
Does Sendblue have a free plan?
Yes. The Free Sandbox is $0 with full API access, a shared phone number, up to 10 verified contacts, and inbound-first messaging. No credit card is required, which makes it the cheapest way in the category to test an iMessage integration before spending anything.
What happens if my contact doesn't have iMessage on Sendblue?
Sendblue automatically falls back to RCS, then SMS if RCS is unavailable, from the same phone number at no additional charge. Delivery states report which channel carried each message.
Keep reading
More on choosing a platform
How Long Before a New iMessage Line Can Send?
Setup promises in this category run from 15 minutes to about two days, and one provider will not allow an outbound first message at all until a separate gate clears. Each vendor is timing a different step, which is why a launch date built on the number in the hero slips.
What Your iMessage Provider Actually Lets You Send
Buyers compare the monthly price of a line and then build the campaign. The constraint that stops the campaign is somewhere else: a new-conversations-per-day figure buried in a comparison table, and an acceptable use policy that names cold outreach as prohibited on every plan. Both are published. Neither is on the page you compared.
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