Self-healing infrastructure for AI agents

Kalibr keeps your agents running without you.

Kalibr fixes failures as your agents run, using real-time user behavior and structured evals. No redeploy. No human in the loop. No downtime.

5,000 decisions/month free · No credit card
Works with the agents and stacks you already ship
OpenAI
Anthropic
Google
DeepSeek
Hugging Face
LangChain
CrewAI
OpenAI Agents SDK
Ollama
MCP
What it does

Your agents catch their own failures, fix them, and improve from real usage.

Kalibr runs as a layer underneath your agents. It watches every step using two signals: structured evals on the output, and how your real users respond. When something goes wrong, Kalibr adapts the agent on the next run, automatically.

  • 01
    Catches failures as they happen.

    Bad outputs, broken format, timeouts, the wrong model for the task. Kalibr sees it inline, before the run completes.

  • 02
    Heals using real signal.

    Structured evals on the output, plus what your users actually did with it. Accept, reject, edit, abandon, re-prompt. That's the data Kalibr uses to choose the fix.

  • 03
    Improves on every run.

    Every run teaches Kalibr what works for your agents and your users specifically. Future runs start smarter, without you redeploying anything.

research_agent · run #1,241
Live
01 Pull customer context
gpt-4o-mini · 240ms Ok
02 Score lead quality
claude haiku · 410ms Ok
03 Generate research summary
gpt-4o · eval 0.42 Failed
Kalibr User rejected last 6 outputs from this prompt. Switching to fallback model with tightened format.
03 Generate research summary
claude sonnet · eval 0.94 Healed
04 Send to user
complete · 3.21s total Ok
Cost

Run cheaper models. Without losing the reliability you wanted from the expensive ones.

Most teams default to flagship models because flagship is the safe choice. The cheaper models would work fine most of the time, but if they fail, the user sees it. Kalibr's eval layer is what makes downgrading safe.

  • 01
    Run the cheap model by default.

    Kalibr evaluates the output structurally and against user behavior on every step. If the cheap model produced something good, you keep it.

  • 02
    Fall back only when needed.

    If the eval fails, Kalibr escalates to a stronger model on the same step. The user never sees the bad output. You only pay premium where it actually mattered.

  • 03
    Learn what each step actually needs.

    Over time, Kalibr knows which steps in your pipeline genuinely require frontier models and which don't. Routing gets cheaper without quality dropping.

support_agent · one run Live
Without Kalibr
Step 01Classify intentgpt-4o$0.04
Step 02Retrieve contextgpt-4o$0.04
Step 03Generate responsegpt-4o$0.04
Step 04Validate outputgpt-4o$0.04
Step 05Format + sendgpt-4o$0.04
Total cost$0.20 per run
With Kalibr
Step 01Classify intenthaiku$0.001
Step 02Retrieve contextdeepseek$0.003
Step 03Generate responsehaiku → sonnet*$0.019
Step 04Validate outputhaiku$0.001
Step 05Format + sendhaiku$0.001
Total cost$0.025 per run
*Step 03 failed quality eval. Kalibr escalated to Sonnet for this step only.
User signal

When users push back, Kalibr fixes the step that broke. Not the whole agent.

When a user reprompts, edits, or rewrites your agent's output, most agents have no idea which step in their pipeline caused the problem. They regenerate the whole thing and hope. Kalibr attributes the user's signal to the specific step, then fixes that step on the next run.

  • 01
    The user reprompts.

    Or edits the output, abandons it, asks for a different format, or tells the agent it got something wrong. Most agents see this as a vague signal and regenerate everything.

  • 02
    Kalibr attributes the failure to a step.

    It correlates what the user said back to which step's output triggered it. Was it the retrieval call that pulled stale context? The generation step that used the wrong tone? Kalibr knows.

  • 03
    The next run swaps that step, not the whole agent.

    Kalibr changes the model, tool, or prompt at exactly the broken step. The user gets the right output faster. The reprompt loop closes.

research_agent · signal attribution Live
User reprompt · run #1,247
“this is wrong, the company name is a 2024 acquisition, you pulled stale info”
Kalibr attributed this to
Step 02 · Retrieve company data
Failure type Stale retrieval tool
Pattern matches 31 prior cases
Fix applied stale_index → live_search
Next run result
User response Accepted · no reprompt
Step 02 change Permanent · applied to all future runs
Why teams run Kalibr

Ship more agent volume without scaling the team behind it.

If your agents are in production, you already know what happens. They worked in demos. Now keeping them running is somebody's full-time job. Kalibr is what closes that loop, so the people who built your agents can build the next thing.

More autonomous workflows.

Failures heal automatically instead of becoming tickets. The portion of agent runs that need a human to recover them goes down. The volume your team can support goes up.

Lower inference cost.

Frontier models where they earn it. Cheaper models everywhere they perform just as well. Kalibr learns the difference from your actual production data, not a benchmark.

Higher completion rates.

Runs that would have failed silently or stopped halfway now finish. Your customers get the output they came for. Your product feels reliable instead of flaky.

No redeploys.

Kalibr adapts your agents in production without touching your code. The improvements ship as they're learned. Your release cycle stays free for actual product work.

The network underneath

Every agent on Kalibr makes every other agent better.

Kalibr correlates outcomes across user behavior, model, tool, and prompt. When a similar agent solves a similar problem, your agents inherit the priors. Anonymized. Never shared between customers.

The longer Kalibr runs, the smarter your agents get.

Kalibr sees what's working across every agent on the platform: which models, prompts, and recovery strategies complete work for which kinds of tasks. Those priors feed your agents from the first run.

Your data stays yours. The patterns Kalibr learns are stripped of identifying context before they ever leave your tenant. The network is intelligence, not exposure.

USER BEHAVIOR MODEL TOOL PROMPT accept reject edit abandon gpt-4o claude deepseek haiku web_search retrieval code_exec system_v1 cot react tool_call kalibr
Pricing

Start free. Scale as your runs do.

Usage-based pricing for teams running agents in production. No per-seat. No annual minimums until you want them.

Free
$0/mo
  • 5K decisions
  • 50K traces
  • Adaptive routing
  • 1yr retention
Pro
$149/mo
  • 2M decisions
  • 20M traces
  • Dedicated support
  • 99.9% SLA
Enterprise
Custom
  • Unlimited volume
  • SSO + RBAC + audit
  • 99.99% SLA
  • Slack + BAA

Plug Kalibr in once. Let your agents run themselves.

Your agents recover, adapt, and improve in production. You go back to building your product.