01 / THE TOOLKIT

One question at a time.

Six free tools for data and caller-provided calculations, plus a separate testnet audit.

01FREE / REFERENCE

Macro Context

macro_context

US overnight reference rates and selected FX. Read SOFR, EFFR and ECB rates with their observation dates.

Lahamu is not affiliated with the New York Fed. The New York Fed does not sanction, endorse, or recommend any products or services offered by Lahamu. New York Fed Terms of Use

$0 · NY Fed + ECB · 30 min cache

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02FREE / SNAPSHOT

Crypto Snapshot

crypto_snapshot

Inspect BTC or ETH spread, returned book depth and trading context on Upbit. USDT quotes.

$0 · BTC / ETH · 5 sec cache

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03FREE / LONGER VIEW

Crypto Trend

crypto_trend

Compare returns, daily-close drawdown and volatility over 30 or 90 completed UTC days.

$0 · USDT · 5 min cache

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04FREE / HISTORICAL

WhaleScope

whalescope_sample

Explore two recorded whale-flow signals and their stored evidence. A format to inspect, not a live feed.

$0 · Jul 9–10, 2026 · Collection paused

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05TESTNET / CALCULATION

Orderbook Audit

orderbook_audit

Estimate fill costs, fees and unfilled quantity from the orderbook JSON you supply. A separate testnet trial.

0.01 test USDC · Base Sepolia

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06FREE / CALLER DATA

Market Input Check

market_input_check

Check market units, fee assumptions, timestamps and orderbook structure before calculating.

$0 · No wallet · No source fetch

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07FREE / CALLER DATA

Execution Cost Compare

execution_cost_compare

Compare up to 5 order sizes across 3 spot books. See costs, fees, partial fills and full-fill rankings.

$0 · No wallet · No source fetch

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08FREE / OFFICIAL SOURCES

Airdrop Explorer

airdrop_events

Browse reviewed airdrop records and official claim guidance. No automatic claims.

$0 · 5 networks · Official-page guidance

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Choose the scope that fits your task. Cache time is not the age of the observation.