Best AI SDR Tools for Bootstrapped Founders (2026 Prices)

Short answer: Most AI SDR platforms are priced for funded sales teams, and the best-known ones (11x and Artisan) do not publish prices at all. If you are bootstrapped, the cheapest way to test an AI SDR is a pay-as-you-go or free plan such as AiSDR at $1.50 per person prospected, Unify's free or $20/seat tier, or Regie.ai's free plan. Approve the first messages yourself and send from a separate domain.

Every price below comes from the vendor's own page, checked on 12 Nov 2026. The judgement calls are ours and are marked as such.

TL;DR#

• Quote-only at the top end. 11x's site offers only demo bookings (11x), and Artisan's pricing page describes "Credit-based pricing" without figures (Artisan pricing).
• Cheapest self-serve tests. AiSDR pay-as-you-go is "$1.50" per person prospected (AiSDR pricing). Unify has a "Free forever" plan and Base at $20 per seat per month (Unify pricing). Regie.ai Free includes "250 one-time credits per person" (Regie.ai pricing).
• Mid-range autonomous agent. Salesforge's Agent Frank is $499 a month billed quarterly for 1,000 active contacts, demo first, no trial (Agent Frank).
• Your domain is the real cost. Google says keep spam rates "below 0.10%" (Google sender guidelines).
• Our read: worth it only after you have a message that already gets replies when you send it by hand.

Disclosure: ZeroRaised publishes this guide and is a launch site for bootstrapped products. ZeroRaised has no commercial relationship with any vendor named here and earns nothing if you sign up. Facts come from the linked sources as checked on 12 Nov 2026.

What an AI SDR is, and how this differs from cold email tools#

A sales development rep (SDR) finds prospects, researches them, writes first-touch outreach, follows up and books meetings. An AI SDR tries to do all of that with an agent: it picks leads from a database, writes personalised emails (sometimes LinkedIn messages too), sends sequences, handles replies and pushes interested people to your calendar.

That is different from a sending tool. Our guide to cold email tools for bootstrapped founders covers Instantly, Smartlead, Mailshake, Hunter and Apollo as tools you drive yourself. This post is about handing the driving to software, and whether that makes sense when the budget is your own money.

AI SDR tools compared#

Sources: AiSDR, Agent Frank, Unify, Regie.ai, Instantly, Amplemarket, 11x, Artisan, Artisan AI sales agent.

Not in the table: Reply.io's Jason AI, because we could not confirm a current price on Reply.io's own site when we checked. Apollo's pricing page describes Free, Basic, Professional and Custom plans and says Professional includes "AI features", but the text we could read showed no dollar figures (Apollo pricing). Check both yourself before buying.

The tools, one by one#

AiSDR: best pay-as-you-go test#

AiSDR is the only vendor we checked that prices a self-serve agent per person prospected. Pay as you go is "$1.50" per person prospected, charged each day as you use it, and you can "Stop anytime". Its FAQ says "You can sign up without a credit card and go straight to the platform, no sales call needed" (AiSDR pricing).

Team plans are for people "contacting 1,000+ people a month", and "Pricing is based on your volume", billed monthly on quarterly contracts. Add-ons include a warmed-up mailbox at $33, a managed campaign at $149 per campaign (where "You review and approve before anything sends") and a fully managed service at $2,500 a month.

Our read: the per-person price makes a small, contained experiment possible. Two hundred prospects is a $300 test, not a quarterly contract.

Salesforge Agent Frank: autonomous, but a real commitment#

Agent Frank's card reads "1,000 Active Contacts" at "$499" per month, billed quarterly, with extra volume at "$0.25 Per Contact" above 2,000 contacts a month. Note that the FAQ on the same page says "Agent Frank starts at $599 per month (billed quarterly)", so confirm the figure on your demo call. The page also says "We don't offer a free trial for Agent Frank", that it "is only available after a demo with our team", and that the price "does not include infrastructure". Mailbox infrastructure (Infraforge) "Starts at $33 per month (billed annually) for 10 mailboxes" (Agent Frank).

The useful detail for founders: in Co-Pilot mode, "he will ask for your review before sending messages", while in Auto-Pilot "he won't require any supervision". If you only want Salesforge's sending platform, Pro is $40 a month billed monthly with 5,000 emails a month and 1 user (Salesforge pricing).

Our read: quarterly billing means at least $1,497 up front before infrastructure. Only buy it once a cheaper test has shown your list and message work.

Unify: free entry, seat pricing#

Unify's Free plan is "Free forever" with "AI outbound" and "Limited credits". Base is $20 per seat per month with 800 credits per seat and adds "AI email copywriting". Pro is $60 per seat per month with 2,400 credits and a 14-day free trial. Managed Gmail and Outlook mailboxes cost "$25/mailbox/mo" (Unify pricing).

Our read: for one founder, a single Base seat is the cheapest paid way to try signal-based AI outbound on a monthly bill.

Regie.ai: free credits to learn on#

Regie.ai Free gives "250 one-time credits per person, never expiring", for up to 10 people sharing one pool, and includes "Research, enrichment, drafting, and agents". Pro is $49 a month, or $41 a month billed annually, with "5,000 credits a month". Team is $150 per seat monthly or $125 annually, with a "Two seats minimum" (Regie.ai pricing).

Instantly: if you already send with it#

Instantly's Starter bundle lists "AI Sales Agent", 1,500 Instantly credits, and "5000 emails monthly, 1000 uploaded contacts", at $94 a month billed monthly or $85 a month billed yearly. Scale, at $194 a month monthly or $175 yearly, adds the "AI Reply Agent". Its FAQ says the platform "runs completely on autopilot" after setup (Instantly pricing). Autopilot is exactly what you should not start with; see the checklist below.

Amplemarket, 11x and Artisan: built for sales teams#

Amplemarket's Startup plan is "$600/mo" on an "annual term" with "2 users included", and "All plans include a free trial" (Amplemarket pricing). That is $7,200 a year before you know if it works. 11x and Artisan publish no prices; treat them as quote-only. Artisan does describe "human-in-the-loop controls" for its agent Ava (Artisan).

Clay is not an SDR, but many founders use it to build the list an agent works from. Its Free plan includes "500 actions/mo" and "100 data credits/mo", and Launch shows $167 a month on the card. The FAQ says "starting at $185/mo", and the page offers 10% off annual billing, so check which term you are looking at (Clay pricing).

When an AI SDR makes sense, and when it burns your domain#

This section is our read, not vendor data.

It makes sense when:

• You already sold to 10 or more customers through founder-led sales and can describe exactly who buys and why.
• You have a message that gets replies when you send it by hand. The agent scales a proven message; it does not find one.
• Your average deal is large enough that a few meetings a month pay for the tool (see the worked example).
• Your buyers are businesses with clear roles and public company data, so the agent's research is accurate.

It burns your domain when:

• You point it at a broad list and let it run on autopilot. Generic AI personalisation at volume draws spam complaints, and Google tells senders to "avoid ever reaching a spam rate of 0.30% or higher" (Google).
• You send from your main company domain, so the same reputation hit lands on your password resets and invoices.
• You have no time to read replies. An agent that books a meeting with the wrong person still costs you an hour.

If your deliverability is already shaky, fix that first with our guide on stopping SaaS emails going to spam.

Worked example: cost per booked meeting#

This is our illustrative arithmetic, not a benchmark. The meeting rate is an assumption for you to replace with your own numbers.

Assumptions (ours): 1% of prospects contacted book a meeting; 20% of meetings become customers; a customer is worth $1,200 in the first year.

Value of a meeting under these assumptions: 20% × $1,200 = $240. On those numbers both clear the bar, but Agent Frank only does if you can fill 1,000 good contacts every month for a whole quarter. Halve the meeting rate to 0.5% and AiSDR's cost per meeting roughly doubles to about $326, above the $240 a meeting is worth. The meeting rate is the number that decides everything, and you only learn it by testing small.

Safe setup checklist#

1. Use a separate sending domain (for example a variant of your brand) and never your main domain.
2. Authenticate it. Google requires bulk senders to "Set up SPF and DKIM" and DMARC, and its policy "can be set to none" (Google). Yahoo asks bulk senders to "Implement both SPF & DKIM" and "Publish a valid DMARC policy with at least p=none" (Yahoo).
3. Warm up new mailboxes before any campaign and start with low volume per mailbox.
4. Approve the first 50 to 100 messages yourself in co-pilot or review mode. Our rule: do not switch to autopilot until you would have sent every one of them unchanged.
5. Add one-click unsubscribe and honour it fast. Yahoo says "Honor unsubscribes within 2 days".
6. Watch spam rate in Google Postmaster Tools and keep it "below 0.10%".
7. Narrow the list. Feed the agent a small, well-defined ideal customer, not a whole database.
8. Log meetings in your CRM so you can calculate real cost per meeting after 30 days.

Compliance basics (not legal advice)#

US, CAN-SPAM. The statute bars "header information that is materially false or materially misleading" and subject headings "likely to mislead a recipient". It requires a working opt-out, honoured within "10 business days", "clear and conspicuous identification that the message is an advertisement or solicitation", and "a valid physical postal address of the sender" (15 U.S.C. 7704).

UK, PECR. The ICO says "You can email or text any corporate body", but "Sole traders and some partnerships are treated as individuals", which brings stricter consent rules. You also "must not disguise or conceal your identity" and must give a valid contact address for opting out (ICO). The ICO notes this guidance is under review following the Data (Use and Access) Act.

An AI agent does not move responsibility off you. If it writes a misleading subject line, you sent it.

Frequently asked questions#

Are AI SDR tools worth it for a bootstrapped founder?#

Sometimes. Our read is that they pay off once you already know who buys, what message gets replies and what a meeting is worth to you. Before that, an AI agent only automates guessing. Start with a cheap pay-as-you-go or free plan, approve the first messages yourself, and compare cost per booked meeting against what a meeting is worth.

What is the cheapest AI SDR tool?#

Of the vendors we checked, AiSDR's pay-as-you-go plan at $1.50 per person prospected, Unify's free plan with limited credits, and Regie.ai's free plan with 250 one-time credits per person are the lowest-cost ways to start. Instantly's Starter bundle, which lists an AI Sales Agent, is $94 a month billed monthly. Prices were checked on each vendor's page on 12 Nov 2026.

Do 11x and Artisan publish their prices?#

Not on the pages we could read on 12 Nov 2026. 11x's site offers only demo bookings, and Artisan's pricing page describes credit-based plans scoped to lead volume, mailboxes and dialer seats without listing figures. Treat both as quote-only.

Can an AI SDR get my domain blacklisted?#

It can damage your sender reputation if it sends to poorly targeted lists and draws spam complaints. Google tells senders to keep spam rates below 0.10% and to avoid ever reaching 0.30%. Send from a separate domain, warm mailboxes up, keep volumes low at first and approve messages before they go out.

Is AI cold email legal?#

Generally yes, if you follow the rules, but this is not legal advice. In the US, CAN-SPAM requires accurate headers, non-misleading subject lines, a working opt-out honoured within 10 business days and a valid physical postal address. In the UK, the ICO says you can email any corporate body, but sole traders and some partnerships are treated as individuals with stricter consent rules.

Launch before you automate outbound#

Outbound works best when prospects can find proof that you exist. Work through our product launch checklist for bootstrapped makers, then submit your product to ZeroRaised for free. For more tested guides on selling without investors, join the ZeroRaised newsletter.

Sources#

• AiSDR pricing, last checked 12 Nov 2026
• Salesforge Agent Frank, last checked 12 Nov 2026
• Salesforge pricing, last checked 12 Nov 2026
• Unify pricing, last checked 12 Nov 2026
• Regie.ai pricing, last checked 12 Nov 2026
• Instantly pricing, last checked 12 Nov 2026
• Amplemarket pricing, last checked 12 Nov 2026
• Clay pricing, last checked 12 Nov 2026
• Apollo pricing, last checked 12 Nov 2026
• 11x Alice, last checked 12 Nov 2026
• Artisan pricing and Artisan AI sales agent, last checked 12 Nov 2026
• 15 U.S.C. 7704 (CAN-SPAM), Cornell LII, last checked 12 Nov 2026
• ICO: electronic mail marketing under PECR, last checked 12 Nov 2026
• Google email sender guidelines, last checked 12 Nov 2026
• Yahoo sender best practices, last checked 12 Nov 2026