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Stacktrace vs TopCalls

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

Stacktrace compared with TopCalls
DetailStacktrace logo StacktraceTopCalls logo TopCalls
What it doesReal-time steering and guardrails for AI agents AI voice agents for outbound sales calls that qualify leads, book appointments, and follow up automatically
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Paid
PricingTeam: Free per organization, unlimited users, 200 session-hours per month. Enterprise and Gateway: Custom pricing, billed annually. AI calls from $0.25/min to $0.35/min depending on destination country zone, billed by the second. Zone 1 calls cost $0.10 for the line plus $0.15 for the AI ($0.25/min total). Zone 2 calls cost $0.20 for the line plus $0.15 for the AI ($0.35/min total). Zone 3 available on request. The $0.15 AI char
Key features
  • Reads every tool call agents make and blocks unsafe ones before they run
  • Catches stalled and runaway sessions while they run
  • Steers agents back when they go past what was asked
  • Tracks every session's tokens against usual usage
  • Stops credential and data leaks before they leave the machine
  • Inventories all agents, MCP servers and skills in use
  • Blocks dangerous calls before they run in agent hooks and at the gateway
  • Sends every finding to Slack, webhook or SIEM
  • Verifies each agent's identity before access
  • Keeps audit-grade masked records of every action and decision
  • AI voice agents for inbound and outbound calls
  • Lead qualification and follow-up automation
  • Smart campaigns with real-time analytics
  • Voice cloning for custom brand voices
  • CRM integration with 764+ tools
  • Multi-language support up to 78 languages
  • Call recording, transcription, and review
  • Calendar booking integration
  • Real-time CRM sync during calls
What makes it different
  • Works with Claude Code, Codex, Cursor, Devin and more
  • Runs on your machines, gateways and in the cloud
  • Active steering corrects or stops drifting runs
  • One policy applied across all MCP servers, plugins and skills
  • Continuously monitors components for known vulnerabilities
  • Managed calling system that improves automatically from call evidence
  • No per-seat fees and transparent usage-based pricing
  • Live within 2 weeks from strategy call to deployment
  • Works with your existing CRM and tools automatically
  • Handles over 11 million calls with full audit trail
Community votes00
DR (Domain Rating by Ahrefs)3 +2 (up) since last check9 no change since last check
Trust Flow (Majestic)137
Citation Flow (Majestic)2526
Referring domains (Majestic)2339

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