Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
From the blog
The public MCP registry crossed 9,400 servers in April 2026. Here is a curated walkthrough of the SaaS MCP servers CallSphere mounts in production, with OAuth 2.1 PKCE patterns.
Mozilla used Anthropic's Mythos to patch hundreds of Firefox vulnerabilities. Here is the AppSec playbook the rest of us can apply — even without Mythos access.
AI receptionist TCO can swing 10x by pricing model. Most SMBs pay $199-$299/month for full-featured, and a 24-month all-in TCO lands at $4.7K-$7.2K — vs $100K+ for a human seat. Here is the line-by-line model.
Vapi 465ms optimal, Retell 580-620ms, Bland ~800ms, ElevenLabs 400-600ms — but those are best-case. We design a fair benchmark harness, P95 measurement, and a reproducible methodology for 2026.
Google donated the Agent-to-Agent (A2A) protocol to the Linux Foundation at Cloud Next 2026. What this means for vendor neutrality and your agent stack.
At Cloud Next 2026 Google renamed Vertex AI to Gemini Enterprise Agent Platform and absorbed Agentspace. What actually changed and why a rebrand made sense.
Langgraph multi-agent supervisor handoffs docs: the supervisor pattern in LangGraph for coordinating specialist agents, with full code, an eval pipeline that scores routing accuracy, and the failure modes to watch for.
Run offline evals as a CI gate. GitHub Actions wiring, threshold gates, LangSmith Experiments, and how to block merges on agent regression — with real YAML.
OpenAI's parallel function calling can cut latency in half — or burn money on dependent calls. The architecture, code, and an eval that proves the win.
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