[API Security & Data Protection Blog]

Guides, best practices, and product updates on securing API traffic, detecting sensitive data, and staying compliant.

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Introducing the Grepture Python SDK

pip install grepture: PII redaction, zero-latency tracing, and prompt management for Python LLM apps. One line to wire into the OpenAI or Anthropic SDK.

Ben @ Grepture

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LLM Guard Is Archived: Alternatives and Migration Guide

LLM Guard's repo went read-only in July 2026. What that means for production deployments, how to pick an LLM Guard alternative, and how to migrate.

LLM Observability Tools Compared: The 2026 Landscape

A head-to-head comparison of Langfuse, Arize, Braintrust, LangSmith, Portkey, and Grepture, updated for the 2026 consolidation wave that took out Helicone and Humanloop.

Engineering

Secure LLM Gateway: What It Takes to Protect AI Traffic

What makes an LLM gateway secure — PII redaction, secret scanning, injection detection, tool restrictions, audit trails — and how to evaluate one.

Security

What Is an AI Gateway? And When Do You Need One?

Why Presidio Isn't Enough for PII Redaction

Replay Production Traffic to Catch LLM Regressions

How We Redact PII Before It Reaches the LLM

Why You Can't Trust LLM-as-a-Judge Scores (Yet)

Restrict Which Tools Your AI Agents Can Call

How NanoGPT Stops Users From Leaking Secrets Into Every Major LLM

Debug Mode — See Exactly What Grepture Redacts and Restores

Budgets: Hard Spend Caps on Your AI Traffic

Route TypingMind Through Grepture — Privacy, Centralized Routing, and Observability

Your vector store is a permanent PII leak

Working with the Grepture CLI: Local Sessions

OpenAI Privacy Filter: A New PII Model You Can Run Locally

LLM Fallback Routing: Never Go Down With Your Provider

Datasets: Production Logs as Test Suites

How to Track and Reduce AI API Costs

Why Teams Need an AI Gateway

Securing MCP Connections Through Your AI Gateway

GDPR-Compliant AI: A Developer's Practical Guide

A/B Test Your Prompts in Production

Best Open Source Models for PII Redaction

Introducing the Grepture CLI — A Local AI Gateway

LLM Evals on Real Traffic — Not Just Test Suites

What is PromptOps? A Complete Guide for Engineering Teams

Trace Mode — Full Observability Without the Proxy Hop

Route Cursor Through Grepture — Observability, Cost Tracking, and PII Protection for Your Team

Route Claude Code Through Grepture — Observability, Cost Tracking, and PII Protection for Your Team

Prompt Management: Version Control for Your LLM Prompts

From PII Redaction to AI Gateway — Why We're Expanding Grepture

Indirect Prompt Injection: The Attack That Hides in Your Data

Your LLM Observability Tool Is Logging PII — Here's How to Fix It

How to Secure Your RAG Pipeline: Preventing Data Leaks in Retrieval-Augmented Generation

Why Your AI Agents Are Leaking Data (And How to Stop Them)

How to Prevent Sensitive Data Leaks in LLM API Calls

LLM Security Tools Compared: Gateways, DLP, Guardrails, and Proxies

Mask and Restore: Reversible Redaction That Keeps LLMs Useful

Prompt Injection Prevention for Production LLM Apps

EU AI Act Compliance for AI Engineers: What You Need to Do Before August 2026

PII Detection Best Practices for AI Pipelines

Introducing Grepture — Content-Aware API Security Proxy