Caltryx: AI Cost Observability and Budget Guardrails
Caltryx helps AI builders and B2B SaaS companies track LLM spend per customer and workflow. It is designed to help prevent runaway API costs using budget enforcement kill switches.
At a glance
- Category
- Operations
- Best for
- Solo SaaS founders, Indie hackers, Small AI startups, B2B SaaS companies embedding AI, Multi-agent workflow builders
- Pricing
- Pricing is usage-based and tiered, starting at $10 per agent per month for Pay As You Go, with monthly plans including Starter ($19), Growth ($49), and Scale ($129).
- Key use cases
- Customer-Level Profitability Tracking, Managing LLM Spend, Multi-Step Workflow Analysis, Agent Lifecycle Management
- Integrations
- OpenAI, Anthropic, LangChain, Telegram
- Official website
- caltryx.vercel.app
Caltryx is an observability and guardrail layer designed for production AI workloads. It supports tracking cost per agent, workflow, and customer via a Node/JS SDK that wraps LLM calls.
The tool is designed for solo SaaS founders, indie hackers, and small AI startups that require more granularity than a standard API billing dashboard. It supports multi-agent and LangChain workflows, using correlation IDs to trace costs across multi-step pipelines.
Caltryx includes budget enforcement features that may automatically stop agents or block API calls when a specific limit is reached. It also provides a Bring Your Own Key (BYOK) system for managing API keys with encrypted storage.
Buyers should note that the software is currently in pre-launch. Features such as multi-user workspaces or role-based permissions are available on the Scale and Enterprise plans.
Key Features
Tracks costs per workflow, per step, and per customer using a tagging layer in the SDK.
Supports daily or monthly limits that can auto-stop agents and block API calls when budgets are hit.
A library that wraps LLM calls with trackLLM() for token tracking and budget hooks.
Allows users to add OpenAI or Anthropic keys which are encrypted at rest using AES-256.
Uses Correlation IDs to provide request logs and token breakdowns across multi-step agent workflows.
A remote interface to check stats, usage, and stop agents via Telegram commands.
Use Cases
Attributing LLM costs to specific tenants to identify customer-specific spend.
Using budget limits and kill switches to help stop agents from overspending due to loops or errors.
Tracing costs across pipelines to identify which step consumes the most budget.
Creating and managing AI agents with assigned models, temperatures, and dedicated API keys.
Best For
Integrations
Pricing
Pricing is usage-based and tiered, starting at $10 per agent per month for Pay As You Go, with monthly plans including Starter ($19), Growth ($49), and Scale ($129).
FAQ
Caltryx is used to track LLM costs per workflow, step, and customer, and to enforce budget limits that can automatically stop agents.
Caltryx can automatically stop agents, block API calls, or throttle usage in real time the moment a pre-set daily or monthly limit is reached.
SDK mode is available on the Growth and Scale plans; the Starter plan is limited to external tracking mode.
Source category: Operations
Source subcategory: Observability Platform
