Infrastructure for AI Agents

Your agent, without
the self-hosting.

Promptolian runs a cloud proxy that caches your tool schemas automatically. Point your agent at proxy.promptolian.com and stop paying for the same tokens twice.

Read the docs → See pricing
~90% tool schema savings (session avg)
4.26/5 context quality score
<10ms proxy overhead
MIT open source
Claude + OpenAI compatible
Pricing
Infrastructure-gated, not feature-gated

All compression features are free in the open package. Paid plans sell hosted proxy uptime, persistent sessions, and team management — things you can't get from pip install.

Estimate your monthly savings
Without proxy
— monthly tool token cost
— tool tokens / month
~5% of calls trigger rework (context loss)
Full price every call
With Promptolian
— monthly tool token cost
— token cost saved / month
— rework prevented / month
Solo plan ($9/mo) total net savings
—
Tool tokens: ~120 per tool · 90% cache hit rate · Claude Sonnet 4 pricing · Rework rate: 5% without proxy → 0.8% with proxy (based on 4.26/5 vs 3.44/5 context quality)
Free
$0
forever · self-hosted
Run it yourself. Full compression stack, SQLite sessions. You manage the server — we manage nothing.
  • ✓Open source (MIT)
  • ✓pip install "promptolian[proxy]"
  • ✓Tool result dedup — REF + DIFF (34.6% savings)
  • ✓Tool schema caching (~90% savings)
  • ✓Claude + OpenAI Responses API
  • ✓SQLite sessions (local, resets on restart)
  • ✓Community support (GitHub issues)
  • ✗ KV-sandwich context compression
  • ✗ Session reset (context wall prevention)
  • ✗ Persistent cloud sessions
  • ✗ Savings dashboard
Get started free
Solo Popular
$9
per month · cancel anytime
One line to production. We run the proxy. Your sessions survive restarts. Your savings are tracked.
  • ✓Everything in Free
  • ✓KV-sandwich compression — 4.26/5 quality
  • ✓Session reset — never hit the context wall
  • ✓Hosted at proxy.promptolian.com
  • ✓PostgreSQL sessions — always-on, never lost
  • ✓1 API key (PROMPTOLIAN_API_KEY)
  • ✓Savings dashboard — tokens saved + $ saved
  • ✓Email support
Team
$49
per month · cancel anytime
For 2–10 developers. One account, separate keys per project, per-project cost analytics.
  • ✓Everything in Solo
  • ✓Up to 10 project API keys
  • ✓Per-project usage breakdown
  • ✓Separate key per agent / environment
  • ✓Cost attribution across projects
  • ✓Priority email support
  • ✓Key rotation for all project keys

All paid plans are month-to-month. Need a custom contract or volume pricing? Contact us →

Compare
What's included
Feature Free Solo $9 Team $49
Proxy host localhost (self-hosted) proxy.promptolian.com proxy.promptolian.com
Session storage SQLite — lost on restart PostgreSQL — always-on PostgreSQL — always-on
API keys — 1 Up to 10
Savings dashboard — Total savings + cache hit rate Per-project breakdown
Tool result dedup (REF + DIFF) ✓ 34.6% savings ✓ 34.6% savings ✓ 34.6% savings
Tool schema caching ✓ ~90% savings ✓ ~90% savings ✓ ~90% savings
KV-sandwich compression — ✓ 4.26/5 quality ✓ 4.26/5 quality
Session reset — ✓ ✓
Key rotation — ✓ ✓ all keys
Support GitHub issues Email Priority email

Get startedSolo

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