Sherlock Calls
for Retell AI
Every Retell AI conversation contains clues about why your agents succeed or fail. Sherlock reads them all. Invite-only beta for Retell AI teams: investigate conversation outcomes, trace failures to their root cause, and deduce what separates your best agents from the rest — from a single Slack message.
TL;DR — What beta users get access to
- 1
Sherlock Calls for Retell AI is in invite-only beta — connecting via API key to give your team natural language access to every conversation and function call trace from Slack. Beta users get direct support.
- 2
Beta teams can ask Sherlock about their Retell AI agents: 'Which agent had the most function call failures this week?' 'Show me all calls with latency over 1.5 seconds' — answered in under 5 seconds.
- 3
Sherlock correlates Retell AI conversation data with your telephony provider and CRM to deliver the full call lifecycle in one query. Apply now to join the beta and shape the integration.
~600ms
Retell AI end-to-end latency
99.99%
Retell AI platform uptime SLA
0
Code required to investigate
About Retell AI
What is Retell AI?
Retell AI is a voice AI platform built for developers, delivering ~600ms end-to-end conversational latency, advanced function calling, and 99.99% uptime. It supports 31+ languages with native-quality speech, is fully HIPAA, SOC2 Type II, and GDPR compliant, and enables teams to build production-ready voice AI agents reporting up to 80% reductions in call handling costs.
About Sherlock Calls
What is Sherlock Calls?
Sherlock Calls is an AI call detective that lives in your Slack workspace. It connects to voice providers, CRMs, and ad platforms, then answers any question about your calls in plain English — in under 5 seconds, with no code, no new dashboards, and no SDK required. Think of it as a senior analyst always on call, inside the tools your team already uses.
Beta Setup
Connect Retell AI to Sherlock in 2 minutes
No code, no webhooks, no new dashboards. Beta users get direct onboarding support.
- 1
Connect Retell AI via API key
Add your Retell AI API key in the Sherlock Calls dashboard — read-only access to all agents, calls, and transcripts. No code changes or webhook configuration required.
- 2
Add Sherlock to Slack
Install the Sherlock Calls Slack app to your workspace in one click. Your team can ask questions from any Slack channel immediately.
- 3
Debug your first agent
Ask 'Show me all Retell AI calls with function call errors this week' — Sherlock queries the API, correlates latency and outcome data, and returns sourced results.
Beta Use Cases
What beta teams are asking Sherlock about Retell AI
- SC“Which Retell AI agent had the most function call failures this week?”
- SC“Show me all calls where latency exceeded 1.5 seconds in the last 7 days”
- SC“Find conversations where the agent failed to complete the task”
- SC“Compare the cost per call for Agent A vs Agent B this month”
- SC“Show me the full function call trace for this specific conversation”
Beta Features
What beta users can do with Retell AI
Conversation Analytics
Analyze conversation flow, turn-taking patterns, and agent response quality. Identify where conversations break down from a single natural language query.
Latency Profiling
Profile end-to-end latency for every conversation turn. Find bottlenecks in LLM, TTS, or your custom functions — ranked and sourced.
Function Call Debugging
Trace every function call your agent makes. See inputs, outputs, and execution times to debug integration issues from Slack.
Voice Quality Metrics
Monitor conversation flow metrics and interruption rates. Ensure a natural, high-quality conversational experience across all agents.
Cost Attribution
Attribute costs to specific agents, campaigns, or use cases. Optimize spending with on-demand cost breakdowns per conversation.
Multi-Agent Comparison
Compare performance across different agent versions, voices, and LLM configurations with data-driven answers from plain English queries.
AI Tools
4 specialized tools, zero configuration
Sherlock picks the right tool automatically. You just ask in plain English — the AI knows which APIs to call and how to correlate the results.
Beta users get direct access to all tools below — with personal onboarding from the Sherlock team.
FAQ
Common questions about Sherlock + Retell AI
How does Sherlock Calls connect to Retell AI?
- Sherlock Calls connects to your Retell AI account via API key with read-only access. No code changes, no webhooks, and no Retell AI dashboard configuration is required. Setup takes under 2 minutes.
Can Sherlock Calls analyze Retell AI conversation latency?
- Yes. Sherlock Calls can analyze end-to-end latency for Retell AI conversations — identifying bottlenecks in LLM response time, TTS generation, or custom function execution. Ask 'Which calls had over 1.5 second latency last week?' for an immediate ranked breakdown.
Can Sherlock Calls access Retell AI function call records?
- Yes. Sherlock Calls can retrieve and analyze all function calls made during Retell AI conversations — inputs, outputs, execution times, and failure patterns. Ask 'Show me all function call failures in the last 7 days' for a detailed, sourced breakdown.
What Retell AI data can Sherlock Calls access?
- Sherlock Calls can access Retell AI call records, transcripts, function call logs, latency data, agent configurations, and cost information. All data is queried in real time — nothing is replicated or stored.
Can Sherlock correlate Retell AI data with HubSpot or Twilio?
- Yes. Sherlock can correlate Retell AI conversation data with HubSpot CRM records and your underlying telephony provider to build unified timelines and provide full call lifecycle visibility in a single query.
Apply for early access to Sherlock + Retell AI
We're accepting a select group of beta users to shape the Retell AI integration. Tell us about your stack and we'll reach out personally if you're a fit.
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