Context Gateway Review (2026): Pricing, Features & Honest Verdict

TLDR

Context Gateway is a YC-backed context compression proxy that sits between your AI coding agent and the LLM API, compressing conversation history up to 200x in the background. It cuts token costs and latency for Claude Code, Cursor, and Codex without any quality loss. Best for: developers spending $5+ daily on AI coding tools. Price: Free and open source (Apache 2.0). Rating: 7.9/10.

What is Context Gateway?

We spotted Context Gateway on Product Hunt today and immediately wanted to test it. If you use Claude Code or Cursor daily, you’ve probably watched your context window fill up mid-session, forcing a compaction that kills your momentum. You’re deep in a debugging flow, the context hits its limit, and everything pauses while the tool summarizes your history. Context Gateway fixes that problem before it happens.

Built by Compresr, a YC-backed startup, Context Gateway is an agentic proxy that monitors your conversation length and compresses history in the background. The key insight: summaries are pre-computed asynchronously, so when compaction triggers, it’s instant. No waiting. No lost momentum. The project is open source under Apache 2.0, written in Go, and shipped its v0.5.1 release in March 2026. It already has 127 stars on GitHub and a growing community on Discord.

What Are Context Gateway’s Key Features?

Background Context Compaction

This is the core feature and it’s genuinely clever. Context Gateway doesn’t wait until your context window is full to start compressing. It runs summarization continuously in the background. When your context hits 75% utilization (configurable), the compressed version is already waiting. Compare that to Claude Code’s built-in compaction, which pauses your entire workflow while it summarizes everything on the spot. The difference in experience is night and day during long coding sessions.

Up to 200x Compression Without Quality Loss

In benchmarks on SEC filing analysis, Context Gateway compressed 106K tokens down to 10.5K tokens. That’s a 90% reduction. And accuracy actually improved from 72.3% to 74.5%. Less noise in the context means the model focuses on what matters rather than sifting through thousands of tokens of irrelevant tool output. The compression is both coarse-grained (selecting relevant chunks) and fine-grained (token-level compression), which explains the quality preservation.

One-Minute Setup

Install with a single curl command and run the interactive TUI wizard. Pick your agent (Claude Code, Cursor, OpenClaw), configure your summarizer model and API credentials, set optional Slack notifications, and you’re done. No YAML files to hand-edit. No Docker containers to manage. The entire setup process takes under 60 seconds, and the wizard handles all the proxy configuration automatically.

Spend Caps and Monitoring

Set daily or session spending limits and get Slack alerts when you’re approaching them. All compaction activity is logged to a JSONL file you can review later. This level of cost visibility is something most AI coding tools completely lack. Your finance team will love knowing exactly how much the engineering department is spending on AI tokens, broken down by session.

How Much Does Context Gateway Cost?

Context Gateway is free and open source under Apache 2.0. The compression models themselves are proprietary but offered at no cost during the launch period. Compresr will likely introduce paid tiers for their hosted compression service eventually, but right now the entire tool costs nothing to use.

The real value is in what it saves you. The average Claude Code developer spends about $6/day on tokens. Even a conservative 50% reduction in token usage saves a solo developer roughly $90/month. A team of five developers saves around $450/month. Compare that to building your own context management system, which would take days of engineering time and ongoing maintenance.

Who is Context Gateway Best For?

Use Context Gateway if you use Claude Code, Cursor, or similar AI coding agents daily and you’re either hitting context limits during long sessions or watching your token spend climb. It’s particularly valuable for teams where multiple developers are running AI agents simultaneously. The spend cap feature alone makes it worth setting up for any team with an AI budget to track.

Skip Context Gateway if you’re a casual AI coding user who only opens Claude Code a few times a week. The savings won’t justify even the minimal setup time. Also skip it if you’re doing short, single-question interactions with your AI coding tool. Context compression matters most during long, multi-file coding sessions where history accumulates.

Best Context Gateway Alternatives

Claude Code’s Built-In Compaction

Free and included with Claude Code. Works fine for most casual users. But it pauses your workflow during compaction and doesn’t pre-compute summaries in the background. For heavy users, the interruptions add up.

Context Mode MCP

Another open-source approach that sandboxes tool outputs before they hit your context window. In testing, it reduced 315KB of raw tool output to 5.4KB. More focused on tool output compression than conversation history, so it solves a slightly different problem.

ContextForge by IBM

A broader MCP gateway with discovery, guardrails, and plugin support. More enterprise-focused and significantly more complex to set up. Covers more ground than Context Gateway but requires more investment to configure and maintain.

Final Verdict: Is Context Gateway Worth It?

Context Gateway solves a real, daily pain point for developers who live in AI coding tools. The background compaction approach is smart engineering. Instead of waiting for your context to blow up and then dealing with the interruption, Context Gateway keeps things compressed proactively. You keep coding. The compression happens silently behind you.

The YC backing adds credibility, and the Apache 2.0 license means you can audit exactly what’s happening to your code context. The main risk is that this is a brand-new tool from a young company, and the free pricing won’t last forever. But right now, there’s no reason not to try it. A five-minute setup could cut your token costs in half and eliminate context window interruptions entirely. For any developer spending real money on AI coding tools, that’s a no-brainer.