Yes, LangWatch has a permanent free tier alongside its paid plans. The free plan includes 50k events per month included, 14-day data access included, and 2 users included. FreeTier.co estimates the free tier at about $14/mo, and no credit card is required to sign up.
About
LangWatch is an LLM engineering platform for testing, evaluating, observing, and governing AI agents. It combines simulation-based agent testing, offline and online evaluations, production tracing, prompt management, and governance controls in a single product.
The pricing page lists a free Developer plan with 50k events per month, 14-day data access, 2 users, and 3 scenarios, 3 simulations, and 3 custom evals. Paid Growth starts at €29 per core-seat per month with 200k events included and additional usage billed at €5 per 100k events.
- 50k events per month
- 14-day data access
- 2 users included
- 3 scenarios and simulations
- 3 custom evals
- €29 per core-seat Growth plan
- 200k events included on Growth
- €5 per 100k extra events
Free Tier Value
This free tier is genuinely usable, but it is capped: the account is free forever, requires no credit card, and includes 50k events, 2 users, and a short 14-day data window. The cheapest paid plan starts at €29 per core seat per month, so the free tier is worth about half of that plan’s value, or roughly $14/month, because it gives a meaningful starter allowance without the paid plan’s larger quotas and collaboration limits.
What's included in the free tier
Verified
- 50k events per month included.
- 14-day data access included.
- 2 users included.
- 3 scenarios included.
- 3 simulations included.
- 3 custom evals included.
- Community support via GitHub and Discord included.
See LangWatch pricing for current limits.
Paid plans
Growth
- events included
- 200k
- retention included
- 30 days
- core-seat
- 1
- Everything in Developer, plus
- Unlimited lite-users
- Unlimited simulations, evals, prompts
- Private Slack / Teams support
- Volume discounts above 20 users
Enterprise
- users
- custom
- retention
- custom
- Hybrid, self-hosted or on-prem
- Custom data retention
- Custom SSO / RBAC
- Audit logs & SLAs
- ISO 27001 reports, InfoSec & legal review
- Custom Terms, DPA
- Forward Deployed Engineer
- Billing via AWS / Google Marketplace
Pricing extracted from LangWatch's pricing page. Always verify current pricing before committing.
Common questions
Is LangWatch free forever?
Yes. LangWatch has a permanent free tier alongside its paid plans, though the allowance typically resets each month.
Does LangWatch require a credit card?
No. You can start on LangWatch's free tier without entering card details.
What happens when you exceed LangWatch's free tier?
You move to a paid plan. LangWatch's cheapest paid plan is Growth at $29 / seat / month.
What is LangWatch's free tier worth?
LangWatch's free tier is worth about $14 per month. That maps to an FTV score of 60/100. The FTV score is explained at freetier.co/ftv.
