Simple, honest pricing

Start free. Scale as you grow. Cancel anytime.

Every plan includes

  • npx @spanlens/cli init1-command setup
  • Self-hostable (Docker)
  • OpenAI / Anthropic / Gemini
  • Agent tracing (Gantt view)
  • PII + prompt-injection detection
  • Anomaly detection (3σ)

Free

For personal projects and exploration

$0/mo
  • 50K requests / month
  • 60 req/min rate limit
  • 1 seat
  • 1 workspace
  • Unlimited projects
  • 14-day log retention
  • All core features included
  • CSV + JSON export
  • Community support
Start free
Most popular

Pro

For solo developers shipping to production

$29/mo

+ $8 / 100K extra requests

  • 100K requests / month
  • 300 req/min rate limit
  • 3 seats
  • 2 workspaces
  • Unlimited projects
  • 90-day log retention
  • 5 alerts
  • Email notifications
  • CSV + JSON export
  • Email support
Start Pro

Team

For teams that need full visibility

$149/mo

+ $5 / 100K extra requests

  • 1M requests / month
  • 1,500 req/min rate limit
  • 10 seats
  • 5 workspaces
  • Unlimited projects
  • 365-day log retention
  • Unlimited alerts
  • Email + Slack notifications
  • Webhooks
  • CSV + JSON export
  • Priority support
Start Team

Enterprise

For large teams with advanced needs

Custom/mo
  • Custom requests / month
  • Custom rate limit
  • Unlimited seats
  • Unlimited workspaces
  • Unlimited projects
  • 365-day log retention (extendable by contract)
  • Unlimited alerts
  • Email + Slack + Discord
  • Webhooks
  • CSV + JSON export
  • SSO (SAML / Okta)
  • Dedicated support + SLA
Contact us

What happens if I go over my quota?

Paid plans default to overage billingso you're never surprise-blocked mid-month:

  • Soft limit, your plan's included quota (100K on Pro, 1M on Team). Extra requests pass through and accumulate.
  • Overage billing, Pro $8 / Team $5 per 100K extra requests, charged immediately at the end of your billing period (not deferred to next month).
  • Hard cap, default 5× the soft limit. Past this, requests return 429 even with overage enabled. Adjustable 1–100× in settings.
  • Cost certainty mode, flip overage off in settings to hard-block at your quota instead.
  • Free plan, proxy keeps working past 50K, but logging pauses (we don't want to break your app). Upgrade to Pro to resume logging plus overage.
Full billing & quota docs →