nano-empire-tollbooth 0.2.2

Monetize any Python function with one decorator. 100 free calls. $19/mo Pro tier. Agent payment SDK.

nano-empire-tollbooth

Monetize any Python function with one decorator.

from nano_empire_tollbooth import monetize

@monetize(price_usd=0.01)
def summarize(text: str) -> str:
    return my_llm(text)

That's it. Every call to summarize() is metered, logged, and settled.

Install

pip install nano-empire-tollbooth

How it works

1. Decorate any function (sync or async) with @monetize(price_usd=...)
2. First 100 calls run free in paper mode — full functionality, no charge
3. After 100 calls, you get a prompt to upgrade to Tollbooth Pro ($19/mo)
4. Pro unlocks live payments via x402 — agents pay real USD per call

from nano_empire_tollbooth import monetize

# Async works too
@monetize(price_usd=0.05)
async def translate(text: str, lang: str) -> str:
    return await my_async_llm(text, lang)

# Check your usage
from nano_empire_tollbooth import get_usage
print(get_usage())  # {'__main__.summarize': 42, '__main__.translate': 7}

What you get

	Free	Pro ($19/mo)
Calls	100 paper-mode	Unlimited
Payments	Simulated	Live USD via x402
Ledger	Local JSONL	Local JSONL + cloud sync
Escrow	Paper receipts	Real settlement
Daily limits	Per-agent caps	Per-agent caps

Configuration

from nano_empire_tollbooth import TollboothConfig, create_tollbooth

config = TollboothConfig(
    toll_per_message_usd=0.01,   # default rate
    paper_mode=True,              # False for live payments
    max_daily_toll_per_agent=10,  # daily cap per agent
)
booth = create_tollbooth(config)

Or set via environment:

TOLLBOOTH_PAPER_MODE=false  # enable live payments

License

MIT