Stammer AI

Stammer AI's Agency Plan at $197/month lets you resell up to 20 chat and 20 voice agents to unlimited clients, turning a fixed platform cost into scalable retainer revenue. With per-message costs as low as $0.001, agencies can bundle AI agents into high-margin monthly offers like the $1,080/mo Starter Chat package, directly increasing client lifetime value without proportional delivery effort.

Stammer AI's Agency Plan ($197/mo) covers 20 chat and 20 voice agents with unlimited client resale, but per-message costs ($0.001 to $0.03 depending on model) stack on top. The Margin Stack framework helps agencies calculate true delivery cost per client: sum the monthly plan share (e.g., $197 divided by number of clients) plus average message volume times per-message rate. For a client using 10,000 messages/month at $0.01/msg, the cost is ~$119.70 ($9.85 plan share + $100 messages). A retainer of $500/mo yields 76% margin. Agencies targeting local service businesses (dentists, salons) can use the Stammer AI Starter Chat offer ($1,080/mo) as a benchmark, adjusting for message volume. The framework prevents margin erosion from high-volume clients and guides tiered pricing based on usage.

Residual Labor Ratio is the share of call handling that still needs a human after an AI voice agent goes live: exceptions, escalations, consent callbacks, and transcript review. It matters because agencies price retainers on the assumption that deployment removes labor, when in practice it relocates labor into supervision. The ratio is measurable before you quote: pull 100 real call recordings, count how many end without human touch, then multiply the remainder by your loaded hourly rate. A clinic booking line may resolve 80 of 100 calls end to end, leaving 20 escalations at six minutes each, roughly two hours of oversight per 100 calls. Platforms differ in how much they absorb: Trillet verifies caller identity and executes actions in live systems, while Goodcall leans on knowledge sources and CRM connections, and Ruby keeps trained humans in the loop by design. Quote the residual, not the demo.

Escalation debt is the accumulated cost of every call an AI voice agent mishandles, misroutes, or drops without a clean human handoff. It does not appear on a usage invoice; it surfaces later as client churn, refunds, and remediation hours. Agencies should track three numbers per deployment: escalation rate, time-to-human, and repeat-contact rate. A missed-call follow-up agent that recovers bookings but routes billing disputes to voicemail builds debt faster than it books revenue. Trillet's audit-trail design and identity verification show why regulated clients treat escalation logs as compliance evidence, not just support metrics. The framework matters because voice retainers are priced on call volume while risk is priced on escalation quality. Before quoting a monthly fee, run 50 real calls through the agent, count every unresolved path, and price the human labor that remains. Escalation debt compounds quietly until renewal, when the client has a call log you cannot defend.

Choose Stammer AI only if your agency can absorb or pass through per-message fees ranging from $0.001 to $0.03 per message on top of the $197 monthly Agency plan.

Quote the retainer only after you have priced the residual labor: the minutes of human review, exception handling, and transcript QA that remain per 1,000 calls after go-live.

If your agency needs a turnkey white-label platform to resell AI chatbots and voice agents to unlimited clients, and you can tolerate per-message costs on top of the $197/mo Agency Plan, then buy. If you require enterprise-grade concurrent call capacity beyond 3 lines or need a flat all-inclusive price without usage-based fees, skip.

A rapid deployment playbook for agencies to onboard a new client onto Stammer AI, including white-label setup, agent configuration, and channel integration, delivered in under a week.