# Foglamp

> Observability and tracing platform for AI agents using Vercel AI SDK

Foglamp provides distributed tracing, cost intelligence, and evaluations for AI applications built on the Vercel AI SDK with minimal instrumentation. It tracks token usage, latency, and costs per customer, model, or agent, while featuring an embedded AI assistant (Foggy) to query telemetry data via chat.

Website: https://foglamp.dev/

## What it is for

- Track token consumption, latency, and operational costs across LLM models and agent workflows
- Inspect distributed traces to debug multi-step tool calls and agent interactions
- Evaluate agent output quality and get alerted when response accuracy or helpfulness drops
- Query system spend, slowest traces, and model usage using an in-dashboard AI assistant

## Features

- Two-line integration built specifically for the Vercel AI SDK
- Distributed tracing showing prompts, tool calls, and span durations
- Cost intelligence breakdown by model, agent, and tenant/customer
- Response evaluation framework with pass/fail scoring and automated alerts
- Foggy in-dashboard chat assistant for querying telemetry and usage metrics
- Self-hosting support alongside cloud deployment

## Pricing

Freemium. Free tier available; paid plans for higher usage and team features.

## Details

- Type: Web app
- Category: [Development](https://xiry.app/topics/development.md)
- Open source: yes
- Platforms: Web, Self-hosted, Code library
- For: Developers and engineering teams building AI agents and LLM features with the Vercel AI SDK.
- Alternative to: Langfuse, Helicone, Arize Phoenix, LangSmith
- Tags: observability, tracing, ai agents, vercel ai sdk, llm monitoring, evals

## Why it was saved

- [@heyimgustavo, 23 July 2026](https://x.com/heyimgustavo/status/2080283036063498576): Traces, cost breakdowns and evaluation scores for LLM projects, queryable through chat.

## Related

- [Antimetal](https://xiry.app/resources/antimetal): Autonomous production engineering platform that diagnoses, triages, and fixes runtime issues (Web app, Paid)
- [Minimal Web-Connected AI Agent in TypeScript](https://xiry.app/resources/minimal-web-connected-ai-agent-in-typescript): TypeScript snippet to build a web-searching agent using Vercel AI SDK and Exa (Tip, Free)
- [Firecrawl](https://xiry.app/resources/firecrawl-1984): Turn websites and documents into clean, LLM-ready markdown or structured data. (Website, Freemium)
- [agent-browser](https://xiry.app/resources/agent-browser): Browser automation CLI and engine purpose-built for AI agents (GitHub repo, Open source)
- [awesome-llm-apps](https://xiry.app/resources/awesome-llm-apps): Open-source collection of runnable AI agent, skill, and RAG templates (GitHub repo, Open source)
- [Parse](https://xiry.app/resources/parse): Turn any website into a structured REST API using natural language (Web app, Freemium)

Updated 10 October 2026. Page: https://xiry.app/resources/foglamp

Make your own library: Xiry takes your saved reels, tweets, Reddit bookmarks and Watch Later videos, makes them searchable and pulls the useful stuff out, like this library. It's invite-only for now; join the waitlist at https://xiry.app/#waitlist.