Developer plan is free for solo users with up to 5k base traces per month, then pay-as-you-go. Plus plan costs $39/seat/month with 10k base traces included. Enterprise plan offers custom pricing with advanced options.
Not given
Key features
Agent observability with step-by-step tracing
Agent evaluation and scoring
Agent deployment infrastructure
Production monitoring with online evaluations
Autonomous agent improvement with Engine
Secure sandbox execution for agent-generated code
LLM Gateway for model call control
No-code agent builder Fleet
Open source frameworks for agent development
Harpe: chooses what an AI agent reads under a token budget with consistent results
Kibisis: keeps agent memory on your hardware with AES-256-GCM encryption
Argus: append-only record that detects edits with cryptographic verification
No network code by default for local and disconnected use
MIT License with published code, benchmarks and raw results
What makes it different
Comprehensive platform covering the entire agent development lifecycle from building to monitoring
Open source frameworks with options from quick-start to low-level control
Built-in observability and evaluation capabilities integrated into the platform
Support for long-running autonomous agents with Deep Agents framework
Measured empirical validation across 6,111 questions outperforming full-context models
Zero plaintext on disk with encrypted vaults matching plaintext accuracy
78.3% fewer tokens sent to the model with a 1,200-token budget per turn
Preserves conversational chronology and relational qualifiers under token budgets
Perseus Computing