Stammer.ai review

Stammer.ai is aimed at agencies rather than single businesses, and that is its main difference from Chatbase. Standard is $49 a month with 500 AI replies and 120 voice minutes, at least one chat agent and one voice agent, web chat, Facebook, Instagram, WhatsApp and API, live chat handoff, lead collection and calendar booking. Pro at $99 a month is the agency plan: 5 chat and 5 voice agents, full white labeling with your own domain, logo and colors, resale of replies, minutes and agents at prices you set, MCP support, bring-your-own LLM keys and white-label API endpoints. Clients get sub-account wallets so they can pay you directly for usage. Extra agents are $10 a month and 1M more knowledge characters $5. The model is usage-heavy: replies and minutes beyond the plan are billed per message or minute, so margins depend on how you price for clients.

Who it is for

Agencies that want to sell docs-trained chat and voice agents to clients under their own brand.

Price

Standard $49 per month with 500 AI replies and 120 voice minutes; Pro white label $99 per month; 20% off yearly.

Standard Chat + Voice basics $49 /mo Start 7-day trial
Quoted from the vendor pricing page on November 9, 2026.

Key features

• AI chat agents for websites, SMS and messaging channels
• AI voice agents that answer and make phone calls
• Live chat with human handoff, lead collection and scheduling
• Full white label with your own domain, logo and colors on Pro
• Resale of chat replies, voice minutes and agents at your own prices

Strengths and weaknesses

• Strength: Chat and voice agents in the same $49 entry plan
• Strength: Pro adds white labeling, MCP and bring-your-own LLM keys for $99 a month
• Strength: Clients can pay you through their own sub-account wallets
• Weakness: Usage beyond the included replies and minutes is billed per message or minute
• Weakness: Trials require a card
• Weakness: Built for resellers, so single-business teams pay for features they may not use

Key facts

• Plans: Standard $49, Pro $99 per month, Enterprise custom
• Overage: $0.01 per extra reply, $0.10 per extra voice minute on Standard
• Add-ons: Extra chat or voice agent $10 a month; 1M knowledge characters $5
• Trials: 7 days on Standard, 14 days on Pro

Where it ranks

Stammer.ai is No. 8 in our Best Chatbase Alternatives verdict and No. 1 in Best Chatbot Builders for Agencies.