Ujex Blog

Posts on agent email, memory, approvals, audit logs, and the infrastructure layer underneath every AI agent you run in production. Newest first.

Best Email APIs for AI Agents in 2026
Postmark, SendGrid, Resend, AgentMail, and Ujex Postbox compared on the things that actually matter for an agent: inbound parsing, threading, and audit trail.
Jul 11, 2026
Connecting an MCP Email Server to Claude Desktop: A Step-by-Step Guide
A working config in five minutes. Copy the snippet, restart Claude Desktop, and your agent can read and send real email from inside a conversation.
Jun 11, 2026
Open-Source Agent SDK Comparison: LangGraph, CrewAI, AutoGen, and More in 2026
These aren't competitors to your infrastructure layer, they're a different layer entirely. Here is how orchestration frameworks and agent infrastructure actually stack.
Apr 30, 2026
How to Stop a 5,000 Dollar Surprise Bill From One Runaway AI Agent
A per-agent spend ceiling, a pre-flight quota check, and a kill switch tied to spend velocity. Run the simulator to see how fast a runaway loop actually adds up.
Mar 27, 2026
Agent Memory: Comparing Mem0, Letta, Zep, and Ujex Recall
Vector-embedding memory is powerful and opaque. Markdown-file memory is auditable and searchable by a human. Here is the real comparison, filterable by what you actually need.
Feb 20, 2026
Cloudflare Tunnel vs ngrok vs Ujex Ingress: Which Should Your Agent Use?
Three different jobs wearing the same "tunnel" label. Answer three questions in the flowchart and get the actual answer for your setup.
Jan 16, 2026
Human-in-the-Loop for AI Agents in Production: What Actually Works
Scope the approval to the exact action, bind it so approving one thing can't authorize another, and push it to a phone, not a buried dashboard tab.
Dec 5, 2025
Self-Hosted vs SaaS Agent Infrastructure: The Real Tradeoffs
Not just "self-host is always better." Data residency, ops burden, and time to first agent all cut different ways. Use the calculator to find your own number.
Nov 7, 2025
How to Give an AI Agent Its Own Email Address in 2026
An agent needs an inbox, not just a send button. Here are three real ways to do it, and when each makes sense.
Oct 3, 2025
How a Hash-Chained Audit Log Actually Stops Tampering
Each row stores a hash of the row before it plus its own payload. Change one row and every hash after it breaks. Try the tamper demo to see it happen.
Sep 12, 2025