# TideTrade > One mechanical trend rule, Supertrend(10, 3), applied the same way to 140 crypto assets on completed daily and weekly candles, with every flip on a public ledger and a pre-registered study behind it. The site reports the rule's state; it does not forecast. Decision support, not financial advice. Each asset is in one of three states on its last completed candle: tide in (the close is more than half an ATR(10) above the line), slack water (within half an ATR, either side), tide out (more than half an ATR below). Mechanical rules here means fixed in advance, read on completed candles, applied the same way to every asset, every result on the record. Prices are the venue's dollar quote; the rule, its parameters and its data sources are published and hashed. ## Market snapshot (free, no key, any origin, 60 requests a minute per address) - [Snapshot, JSON](https://tidetrade.app/api/v1/snapshot): today's tide on every asset (band, direction, close, line, distance in ATR and percent, candle, venue, last flip), crypto breadth and the Core 30, the day's flips, the current weekly report. Add ?tf=W for weekly candles. Refreshed after each run; cache for a minute. - [Snapshot, CSV](https://tidetrade.app/api/v1/snapshot.csv): the same rows, one per asset, for spreadsheets. - The same two files outside the /api/ prefix, for fetchers that refuse API-looking paths: https://tidetrade.app/snapshot.json and https://tidetrade.app/snapshot.csv - [Rule manifest](https://tidetrade.app/api/v1/rules): the published rule, its parameters, data sources, schedule, record types and changelog, with a SHA-256 of the manifest. - [Operational status](https://tidetrade.app/api/v1/status): when each part of the universe was last read, late rows, corrections, ledger hashes, cross-venue agreement. - [OpenAPI 3.1](https://tidetrade.app/docs/api/openapi.json) and the [API catalog](https://tidetrade.app/.well-known/api-catalog) (RFC 9727). The keyed states endpoint for Pro accounts is described there too; [the public endpoints alone](https://tidetrade.app/docs/api/openapi-public.json) for agents that hold no key. - [MCP server](https://tidetrade.app/mcp): the same data as tools for Claude, ChatGPT and any Model Context Protocol client (Streamable HTTP, stateless, no key, 120 requests a minute per address): snapshot, asset, report, rule, and the search and fetch pair. How to add it: https://tidetrade.app/docs/api#mcp ## The record - [Ledger export, CSV](https://tidetrade.app/ledger/export.csv) and [JSON](https://tidetrade.app/ledger/export.json): every flip of the rule on record, replayed or live, with a [daily SHA-256](https://tidetrade.app/ledger/hashes) and [disclosed corrections](https://tidetrade.app/ledger/corrections). - [Sunday Tide Report archive](https://tidetrade.app/report): one page per week since January 2025 with breadth, the week's flips and the day's hash; the newest live editions are written each Sunday. - [Asset pages](https://tidetrade.app/asset/btc): the state in words, the record block (trips, losing share, best and worst, the rule against holding), the flip history and the chart; the share image is at /og/asset/{id}.png. - [The study](https://tidetrade.app/study/rule-v1-crypto) with its [data](https://tidetrade.app/study/rule-v1-crypto.json) and [text](https://tidetrade.app/study/rule-v1-crypto.md): a pre-registered replay of the rule on the 20 most-traded crypto assets, 2019 to 2026, every benchmark and weakness shown; its finding, verbatim: in past data the rule had smaller falls; its return was similar overall and lower in recent years. ## How it works and how to act - [How it works](https://tidetrade.app/how-it-works): the line, the settings and why they are not tuned, the three states, completed candles only, replayed versus live, the filter question. - [The Tide Rules](https://tidetrade.app/rules): five mechanical rules and how to run them. - [Rule v1 manifest, human form](https://tidetrade.app/rules/v1). - [What is trend trading](https://tidetrade.app/what-is-trend-trading), [crypto trend trading](https://tidetrade.app/trendtrading), [crypto trading signals, how to judge them](https://tidetrade.app/crypto-trading-signals). - [Wallet check](https://tidetrade.app/wallet-check): paste any public address, read-only, no account; which holdings are below their line. - [Pricing](https://tidetrade.app/pricing): free scanner, wallet check and Sunday digest; Pro for alerts the night a flip happens, whole-universe alerts, API keys. - [Disclaimer](https://tidetrade.app/disclaimer).