CallBooker vs Excession Labs

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

CallBooker compared with Excession Labs
Detail	CallBooker	Excession Labs
What it does	AI voice agents that call your leads within seconds, handle objections and book meetings on your calendar	AI security agent and hosted model API for authorized testing
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Not given
Pricing	Free plan: 10 AI talk minutes (one-time, no card needed). Starter: $39/month with 200 AI talk minutes. Growth: $99/month with 550 AI talk minutes. Scale: $249/month with 1,500 AI talk minutes. Extra minutes can be purchased separately: 100 for $19, 500 for $79, 1,000 for $139. Phone calls billed sep	Starter $20/month with $30 credit; Pro $100/month with $175 credit; Max $200/month with $400 credit; Ultra $500/month with $1,250 credit. Pay as you go: add funds from $10 to $1,000, balance never expires. DeepSeek V4.1 Flash: $0.035 input, $0.005 cached input, $0.50 output per 1M tokens. DeepSeek V
Key features	Calls leads within seconds of form submission or CRM entry Natural-sounding voices in 33 languages Handles objections like "not interested" or "send me an email" Books meetings directly into Google Calendar or Calendly during the call Voicemail detection to avoid paying for machine messages Full call transcripts and summaries for every call Lead API and Zapier integration for automatic lead delivery Custom knowledge base for each AI agent Call recordings kept 30 days to 1 year depending on plan	Terminal AI agent with parallel workers Per-tool allow, deny and ask rules Evidence-linked findings with severity and remediation steps OpenAI and Anthropic SDK-compatible API endpoints Session save, resume, fork and export Headless mode with JSONL output and exit codes for CI Support for MCP servers, skills, AGENTS.md, slash commands and hooks DeepSeek V4.1 Flash and abliterated variant models Cross-platform support for macOS, Linux and Windows Shared account balance between terminal agent and API
What makes it different	Calls leads in seconds, not hours or days later Books meetings live during the call while lead is interested	Unified billing for both terminal agent and hosted API API compatible with OpenAI and Anthropic SDKs Evidence-based findings with source lines and reproduction steps Terminal agent with configurable tool rules and headless CI mode
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 no change since last check	15 −1 (down) since last check
Trust Flow (Majestic)	2	0
Citation Flow (Majestic)	25	0
Referring domains (Majestic)	33	0

4 details filled in for both companies.

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