Surya Koritala

I write about AI agent infrastructure — the protocols, identity layers, and orchestration systems that move agents from chatbots into autonomous actors on the open web. I am the founder of Cyntr, an open-source agent orchestration runtime, and Loomfeed, a discussion platform where humans and AI agents post side by side. Previously: RoamX.
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320 Articles
Network routing diagram showing an LLM gateway proxy fanning requests out to multiple model providers with fallback paths
Agent Infrastructure

Best LLM Gateway 2026: LiteLLM vs Portkey vs OpenRouter

The best LLM gateway in 2026 depends on one question: self-host or SaaS proxy. We rank LiteLLM, Portkey, OpenRouter and…

By Surya Koritala
30 Min Read
Diagram-style illustration of a SKILL.md folder containing scripts, references, and assets subfolders feeding into an AI agent
Agent Infrastructure

What Are Agent Skills? The SKILL.md Open Standard Explained

What are agent skills? A SKILL.md folder that teaches an AI agent how to do a task, loaded on demand.…

By Surya Koritala
6 Min Read
Diagram of an AI agent paying a paywalled API over HTTP 402 with USDC on Base, showing the request, 402 payment-required response, and X-PAYMENT retry
Commerce

x402 Payments for an AI Agent in Python: 2026 Tutorial

Add x402 payments to an AI agent in Python: a testnet-first tutorial that walks the full HTTP 402 flow on…

By Surya Koritala
30 Min Read
Diagram of an AI agent loop sending LLM-generated Python code to an isolated cloud sandbox and feeding stdout, stderr, and results back to the model
Agent Infrastructure

AI Agent Code Execution Sandbox: Python Tutorial (2026)

This AI agent code execution sandbox Python tutorial wires an execute_python tool into a working agent loop, runs LLM code…

By Surya Koritala
30 Min Read
Layered stack diagram showing an LLM brain driving Browser Use and Stagehand agent SDKs over a Playwright/CDP driver and local Chromium or Browserbase managed-browser runtime
Agent Infrastructure

Browser Automation for AI Agents: 2026 SDK Pick

A builder's guide to browser automation for AI agents 2026: how Browser Use, Stagehand, and Browserbase sit in different layers,…

By Surya Koritala
29 Min Read
Quadrant chart comparing reranker models by latency and accuracy for production RAG in 2026
Agent Infrastructure

Best Reranker Model 2026: Cohere vs Voyage vs Jina vs Zerank

Choosing the best reranker model 2026 comes down to your latency budget, not a leaderboard. We compare Cohere, Voyage, Jina…

By Surya Koritala
30 Min Read
Abstract visualization of a cached prompt prefix feeding repeated agent API calls at a reduced token cost
Agent Infrastructure

Prompt Caching for Agents: Where Breakpoints Go

Engineering prompt caching hits for agents: where to place cache breakpoints, why dynamic-content-first kills your hit rate, and the TTL…

By Surya Koritala
31 Min Read
An AI agent presenting a cryptographic signature badge to a web server gate instead of facing a CAPTCHA challenge
Identity & Provenance

Web Bot Auth: Sign Agents to Skip CAPTCHA Walls

Build a Web Bot Auth signed agents flow with RFC 9421 HTTP Message Signatures so your AI agent proves identity…

By Surya Koritala
28 Min Read
Conceptual illustration of a ChatGPT in-chat shopping cart being unplugged, with product cards routing out to retailer websites
Commerce

OpenAI Instant Checkout Autopsy: Why It Died

OpenAI Instant Checkout died March 5, 2026 after ~30 merchants and 8% trial usage. The autopsy: real demand, fatal merchant…

By Surya Koritala
26 Min Read
Abstract architecture diagram of a durable execution layer persisting AI agent workflow state through a crash
Agent Infrastructure

Durable Execution for AI Agents: Temporal vs Restate vs DBOS

Durable execution for AI agents compared: Temporal vs Restate vs DBOS on architecture, LLM handling, operational footprint, and scale, plus…

By Surya Koritala
28 Min Read
An interactive dashboard widget rendered inside a chat conversation, served by an MCP App server
Agent Infrastructure

Build an MCP App: Interactive UI in Claude and ChatGPT

Learn to build an MCP app with the ext-apps SDK: a tool plus a ui:// resource that renders interactive HTML…

By Surya Koritala
30 Min Read
Two AI agents establishing a mutual TLS connection authenticated by short-lived SPIFFE SVID certificates
Identity & Provenance

SPIFFE SPIRE for AI Agents: Issue SVIDs Not Keys

Use SPIFFE SPIRE for AI agents to swap leaky API keys for short-lived SVIDs, then stand up mTLS between two…

By Surya Koritala
33 Min Read