Glasstrace

The missing observability layer between your client and your backend — designed from day one for AI agents, priced for solo developers.

npm install @glasstrace/sdk

Get started

The debug loop has a blind spot

Your AI coding agent can see the broken UI. It cannot see that a Prisma query failed because a foreign key constraint was violated by a migration that ran an hour ago.

Without Glasstrace

Something breaks in your app
You copy the error message
You paste it into agent chat
The agent guesses at the cause
You go back and forth, losing context

With Glasstrace

Something breaks in your app
Your agent calls get_latest_error
It gets the full span tree: route, query, error, stack
It fixes the actual root cause

Three products, one debug loop

SDK

Trace Capture

Drop-in instrumentation for Next.js. Captures API routes, database queries, and errors as structured traces — zero config.

Browser Extension

Client Correlation

Links browser interactions to server-side traces. Your agent sees what the user clicked that caused the server error.

MCP Server

Agent Debugging

Five MCP tools that give your AI coding agent direct access to structured traces, root cause analysis, and test suggestions.

How it works

Install the SDK

npm install @glasstrace/sdk
npx @glasstrace/sdk init

One package, one command. Instruments your Next.js API routes, database queries, and fetch calls automatically.

Trigger an error

Develop as you normally would. When something breaks, Glasstrace captures the full server-side causal chain as a structured trace — from the incoming request through every database query to the error.

Your agent debugs it

Your AI coding agent calls Glasstrace via MCP. No copy-pasting, no screenshots, no guessing.

{
  "tool": "get_latest_error",
  "result": {
    "route": "POST /api/checkout",
    "error": "PrismaClientKnownRequestError: Foreign key constraint violated",
    "spans": [
      {
        "name": "POST /api/checkout",
        "duration_ms": 142
      },
      {
        "name": "prisma:query orders.create",
        "duration_ms": 38,
        "error": true
      }
    ]
  }
}