Stammer
White-label AI agents for chat and voice, resold under your brand.
Stammer is a strong fit for agencies reselling AI agents. Its white-labeling, multi-channel support, and zero-revenue-sharing model enable high margins. However, businesses needing a ready-made internal chatbot may find the agency focus less suitable; consider Tidio or Zendesk instead.
Verified 18d ago · liveness 77/100 · cite: rightaichoice.com/tools/stammer
- AI agencies reselling white-label AI agents to clients
- Web development agencies expanding into AI service offerings
- Businesses needing 24/7 lead qualification and appointment booking across channels
- Home service, ecommerce, healthcare, real estate, legal, and agency industries
- Businesses needing a ready-made, non-white-label AI agent for internal use only
- Companies requiring advanced custom AI workflows beyond lead gen and scheduling
- Teams looking for a pure no-code chatbot with marketing automation (e.g., email sequences)
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Skip Stammer if you need a simple, non-white-label chatbot for your own business only, or if you require advanced custom NLP intent training beyond GPT prompts.
Each chat message and voice minute incurs usage costs per model (e.g., $0.001/message for GPT-4.1-nano chat, $0.11/minute for voice) unless you bring your own OpenAI API key for chat.
Starting at $197/mo for up to 20 chat and 20 voice agents, Stammer is cheap for agencies reselling AI services but pricey for a single-business chatbot (cheaper standalone tools like Tidio start at $30/mo). The Full SaaS Mode at $497/mo adds advanced analytics and custom AI functions for scaling agencies. Enterprise is custom-priced. Usage costs are additional.
In short
Stammer — White-label AI agents for chat and voice, resold under your brand. Best for AI agencies reselling white-label AI agents to clients, Web development agencies expanding into AI service offerings, Businesses needing 24/7 lead qualification and appointment booking across channels. Plans from $197/mo.
Viability Score
How likely is Stammer to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
Last calculated: July 2026
How we score →Key Features
- White-label AI chat agents
- White-label AI voice agents
- Multi-channel deployment (web, phone, Instagram, Facebook Messenger, WhatsApp, API)
- No-code agent builder
- AI appointment scheduling (Calendly, Google Calendar, Cal.com)
- Automated lead collection and qualification
- Seamless human handoff
- Branded client portal with real-time analytics
- Reseller program with zero revenue sharing
- Custom domain and branding
- API for custom integrations
- Use your own OpenAI API keys for chat
- Per-message and per-minute usage billing
- Agency Wallet and Sub-Account Wallet for billing clients
- Live chat and human handoff
About Stammer
Stammer is a white-label platform for agencies and businesses to build, deploy, and resell AI agents for chat and voice. It handles customer support, lead qualification, and appointment booking 24/7 across website, phone, Instagram, Facebook Messenger, and WhatsApp. With no-code setup, you can create conversational AI that integrates via API. The platform supports 35K+ live AI agents, 12M+ conversations, and boasts 99.9% uptime. Key features include automated lead collection, AI scheduling, seamless human handoff, and a branded client portal with real-time analytics. Stammer is positioned for AI agencies wanting to resell AI solutions under their own brand, with a reseller program offering zero revenue sharing and full pricing control. Pricing starts at $197/mo for the Agency plan, with usage costs depending on the AI model you choose. Compared to alternatives like Retell AI, Stammer emphasizes white-label capabilities and multi-channel support, making it a strong choice for agencies building recurring revenue streams.
Behind the Verdict
Stammer's core strength is its all-in-one white-label package for agencies. The platform covers chat, voice, and messaging across web, phone, Instagram, Facebook Messenger, WhatsApp, and API, all under your brand. Setup is no-code, and the client portal with real-time analytics helps justify premium pricing. The usage-based billing (per message/minute) lets you mark up costs 3-5x, and you keep 100% of the markup. Where it bites: the platform is clearly built for reselling, not for internal use. The base plans tie agent counts to a limit, and add-ons for extra agents or knowledge base characters increase costs. Voice minutes at $0.11+ can add up if clients have high call volumes. Compared to alternatives like Retell AI, which focuses on voice-first with lower entry pricing, Stammer offers broader channel support and a stronger agency reseller model. In practice, we'd reach for this when we need to bundle chat, voice, and messaging into one branded offering with predictable margins. Pass if you're a single business wanting a simple chatbot without the agency overhead.
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Real-world workflow fit
Concrete scenarios for the personas Stammer actually fits — and what changes day-one when you adopt it.
You create a white-label AI agent for 'ABC Plumbing' with a custom domain, train the knowledge base on the client's FAQ and service areas, and deploy the chatbot on their website and AI voice agent on their phone number.
Outcome: The AI agent answers 80% of incoming calls, books appointments automatically via Google Calendar, and captures leads from missed calls, reducing the client's admin workload and generating $500/mo recurring revenue for your agency.
You set up a Facebook Messenger and WhatsApp AI agent that qualifies leads by asking pre-qualifying questions and schedules demos via Calendly, all under your agency's branding.
Outcome: Leads are qualified 24/7 without human intervention, and the client sees a 30% increase in demo bookings within the first month, justifying a premium monthly retainer.
You sign up for the Agency plan, build a generic AI chatbot for 'local business support', and sell it to 10 small businesses (e.g., dentists, salons) for $200/mo each, using your own branding.
Outcome: You generate $2,000/mo recurring revenue with minimal ongoing effort; Stammer's zero-revenue-sharing means all subscription and usage markup profit is yours.
Use Cases
- Answer customer questions 24/7 on your website with an AI chatbot trained on your business data.
- Qualify inbound leads automatically and book appointments via calendar integration.
- Replace voicemail with an AI voice agent that handles customer calls and routes complex issues to humans.
- Run outbound lead follow-up campaigns using natural voice agents with automated appointment scheduling.
- Sell a fully branded AI support service to multiple local businesses from a single agency dashboard.
- Capture leads from Facebook Messenger and WhatsApp conversations automatically and sync with CRM.
Models Under the Hood
as of 2026-07-14
Limitations
- Knowledge base size is capped at 1M characters for chat and 5M for voice across all plans, which may limit training on large product catalogs.
- Concurrent calls are limited: 3 on Agency, 5 on Full SaaS, and 25+ on Enterprise.
- Usage costs for AI models can add up if not using your own API keys—per-message and per-minute rates are listed but dependent on model.
as of 2026-06-28
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published Stammer tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Agency
$197/mo
Ideal for
Agencies starting out, reselling AI agents to up to 20 clients per plan; includes 20 chat and 20 voice agents with 3 concurrent calls.
What this tier adds
Starting tier for reselling; includes fully white-labeled dashboard and ability to sell to unlimited clients, but limited to 3 concurrent voice calls.
Full SaaS Mode
$497/mo
Ideal for
Growing agencies needing more agents (100 chat, 100 voice), advanced analytics, and custom AI functions to differentiate their offering.
What this tier adds
Adds custom AI functions, advanced analytics, 1-on-1 onboarding, and early access to new features; 5 concurrent calls.
Enterprise
Custom
Ideal for
Large software companies or agencies deploying thousands of AI agents with custom integrations, SSO, self-hosting, and dedicated support.
What this tier adds
Custom pricing with starting at 1000+ chat agents, 250+ voice agents, 25+ concurrent calls, and options for local storage, self-hosting, and custom AI models.
Where the pricing makes sense
The company stage and team size where Stammer's pricing actually pencils out — and where peers do it cheaper.
Starting at $197/mo for up to 20 chat and 20 voice agents, Stammer is cheap for agencies reselling AI services but pricey for a single-business chatbot (cheaper standalone tools like Tidio start at $30/mo). The Full SaaS Mode at $497/mo adds advanced analytics and custom AI functions for scaling agencies. Enterprise is custom-priced. Usage costs are additional.
Setup time & first value
How long it actually takes to get something useful out of Stammer — broken out by persona, not the marketing-page minute.
Agency owners can launch a basic AI chat agent in under 30 minutes using the no-code builder and pre-built templates. Voice agents take slightly longer (1–2 hours) to configure the voice, knowledge base, and call routing. The Full SaaS Mode includes a 1-on-1 onboarding meeting to accelerate setup.
Switching to or from Stammer
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From Retell AI: Export your agent configurations (prompts, knowledge base) and manually recreate them in Stammer; Stammer offers broader channel support (Instagram, Facebook Messenger) and full white-labeling.
- →From Voiceflow: You can export your dialog flows as JSON and import them into Stammer's no-code builder, but some advanced logic may need manual rework.
- →From a custom chatbot: Use Stammer's API to integrate your existing knowledge base and logic; you may need to rebuild the UI in Stammer's white-label client portal.
- ↗To Retell AI: Export your agent prompts and knowledge base; Retell AI also supports voice but has fewer channel integrations and less white-label flexibility.
- ↗To Botpress: Use Botpress's import tools to migrate your dialog flows; Botpress offers more advanced NLP and custom workflows but requires more technical setup.
- ↗To a custom solution: Use Stammer's API to extract conversation logs and agent configurations; rebuilding from scratch may be needed for deep customization.
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