Freedom251
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
Vendor dashboard
No. 15 of 32 ·AI Agent Observability Tools

LangWatch

Web · Linux · Self-hosted · API · paid plans from €29/mo

Visit site Alternatives

Freedom report

Two barsScore 6.4

  • Free tierA free tier is on its own pricing page
  • Open codeNo open-source code on record
  • Runs widely2 of 6 device platforms
  • DocumentedPlans, terms and facts published

LangWatch is ranked #15 of 32 in AI agent observability tools on Freedom251. It runs on API, Linux, Self-hosted, Web. There is a free plan. Paid plans start at €29/mo.

LangWatch plans and pricing

All plans
Developer Free free forever 50k events/month · 14-day data access · 2 users · 3 scenarios, 3 simulations, 3 custom evals · community support (GitHub & Discord) langwatch.ai · 5 Oct 2026
Growth €29/mo per core-seat / month 200k events included, then €5 / 100k · 30-day retention included, extend at €3 / GB · unlimited lite-users, simulations, evals, and prompts · private Slack / Teams support langwatch.ai · 5 Oct 2026
Enterprise Not published Custom Hybrid, self-hosted or on-prem · custom retention and SSO/RBAC · audit logs and SLAs · ISO 27001 reports, InfoSec and legal review · custom terms and DPA langwatch.ai · 5 Oct 2026

Compared on AI agent observability tools

Free plan
Yes

Best LangWatch alternatives

See all 20
Two bars PetalTrace Free tier No. 1Free6.7 Two bars OpenLIT Free tier No. 2Free6.6 Two bars W&B Weave Free tier No. 3$60/mo6.6 One bar Opik Free tier No. 4$19/mo6.5 Two bars SigNoz Free tier No. 5$19/mo6.5 One bar Agenta Free tier No. 6$29/mo6.4