Langy
LangWatch's automated AI engineer: it reads production traces, clusters failures, writes tests and opens a pull request with CI checks, running on the customer's own model keys; you review and merge.
What it does
- Evaluation and observability
- Agentic coding
Sources
- Pricing
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Read the pricing page's plan cards and comparison list: Langy is named in the site menu but no card or row states a plan, price or meter for it.
- Description
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Official documentation · 18 Oct 2026
"Langy is an automated AI engineer inside LangWatch. It reads your traces, writes the tests, opens the pull request, and proves the fix in your CI."
- What it does
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Official documentation · 18 Oct 2026
"Ask in plain language. What comes back is a diff with green checks attached."
- Sold within
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Read the Langy page and the pricing page: Langy is presented as part of the LangWatch platform ("Langy is an automated AI engineer inside LangWatch.") but no page states which plan includes it.
- Name
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Official documentation · 18 Oct 2026
Page heading "Langy"; "Your AI engineer best friend"
- URL
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Official documentation · 18 Oct 2026
The product's own page, linked first in the Platform menu as "Langy" (marked New).
- Deployment
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Official documentation · 18 Oct 2026
Runs inside the LangWatch platform: "Langy is an automated AI engineer inside LangWatch."
- Interfaces
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Official documentation · 18 Oct 2026
"Langy is an automated AI engineer inside LangWatch." It is used from the LangWatch web app and opens pull requests in the customer's repository.
Also from LangWatch
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LangWatch LLM observability Developer tool
LangWatch LLM observability traces model calls, tool calls and retrieval steps while displaying costs, latency and errors.
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LangWatch Instant Evals Application
A LangWatch component that evaluates stored agent conversations, traces, and LLM calls against questions expressed in plain language.
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LangWatch AI Gateway API service
Gateway that puts every LLM call through one endpoint on the customer's own provider keys, with per-person, team, project and customer spending budgets, provider fallback, a trace for every call and webhooks for billing end customers.
Open LangWatch in the directory
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