Observability for AI applications
Capture, analyze, and surface insights from your LLM-powered apps. Understand what's working, what's not, and ship with confidence.
Early access pricing — 50% off. Limited spots available.
# 2 lines to start observing
import phospho
phospho.init()
# Wrap your LLM calls
response = phospho.log(
input="Summarize this doc",
output=llm_response
)Everything you need to understand your AI
Built for product & engineering teams who refuse to fly blind with their LLM applications.
Capture Everything
Log every LLM interaction — inputs, outputs, latency, tokens, and user context. Two lines of code to get started.
Analyze at Scale
Automatic quality scoring, topic clustering, and anomaly detection. Understand patterns across thousands of conversations.
Surface Insights
Get actionable dashboards showing user satisfaction, failure modes, and optimization opportunities. Stop guessing, start knowing.
Ship with Confidence
Catch regressions before your users do. Set alerts on quality drops, hallucination rates, and latency spikes.
From integration to insight in minutes
Integrate
Add our SDK to your application. Works with any LLM provider — OpenAI, Anthropic, Cohere, and more.
Observe
Every interaction is captured with full context. Inputs, outputs, metadata, and user signals.
Improve
Use insights to iterate on prompts, catch failures, and continuously improve your AI product.
Simple, transparent pricing
Lock in early access pricing today. This rate is guaranteed for founding members — forever.
Locked-in Pricing
Your $49/mo rate is guaranteed forever. No price hikes, even as we add features.
Priority Support
Jump the queue. Direct access to our engineering team for setup, debugging, and optimization.
Shape the Roadmap
Your feedback drives our priorities. Vote on features and get early access to new capabilities.
Phospho Pro
Full AI observability for your LLM apps
50% off — Early access pricing locked in forever for founding members
No sales call required • Cancel anytime • Start in minutes
Everything included:
- Event Logging API — Log every LLM interaction with 2 lines of code
- Analytics Dashboard — Real-time metrics, trends, and quality scores
- Session Replay — Step through user conversations to spot issues
- Feedback Collection — Capture user signals to measure satisfaction
- Priority Support — Direct engineering access for setup and debugging
- REST API & Python SDK — Integrate with any LLM provider in minutes
- Anomaly Detection — Alerts on quality drops and latency spikes
Secure payment via Stripe • SOC 2 compliant • No long-term commitment
Stay in the loop
Not ready to buy yet? Join our mailing list for product updates, LLM observability tips, and early access to new features.
No spam. We'll only reach out when your spot is ready.
Ready to understand your AI application?
Join forward-thinking teams building better AI products with phospho. No sales call needed — start in minutes.
Get Early Access — $49/moFounding member pricing — 50% off at $49/mo locked in forever. Cancel anytime.