# Skontro

> The neutral check layer for every crypto move. Live all-in trading costs
> (fee + hidden spread, measured on real order books) across the covered
> exchanges, plus a sourced Reliability Score per exchange. Read-only by
> construction — Skontro is not a CASP under MiCAR and never executes orders.
> Built in Vienna by OptiRisk Consulting e.U.

Ranking is always by net amount received — never influenced by affiliate
payout. Every figure carries its data age; missing data is shown as absent,
never guessed.

## Live comparison

- [True cost of a trade](https://skontro.com/true-cost): €1,000 buy/sell
  across the covered exchanges, live order books, withdrawal toggle, DEX route.
- [Methodology](https://skontro.com/true-cost/methodology): how every
  number is measured. Public and versioned.
- [Exchange reliability](https://skontro.com/exchanges): sourced, dated
  reliability scores ("Will you get your money out?").
- [Withdrawal fees](https://skontro.com/withdrawal-fees): curated native-chain
  BTC/ETH withdrawal fees per exchange, each with its source.
- [Move check](https://skontro.com/move-check): the cheapest measured way off
  an exchange onto a chain (withdrawal fee + optional bridge leg).
- [True-Cost Index](https://skontro.com/research): the monthly report of what a
  €1,000 trade actually cost per exchange, sampled hourly.
- [Data status](https://skontro.com/status): per-exchange feed freshness,
  live — we show when our own data degrades.
- [Roadmap](https://skontro.com/roadmap): what is live vs in build.
- [Developers](https://skontro.com/developers): the public API + MCP server.
- [Deutsch](https://skontro.com/de): German-language guides and comparisons.

## Public API (no key required)

REST base URL: https://cryptotraderapi-production.up.railway.app (the website domain does not proxy the API — call
the base URL directly). Full contract: https://skontro.com/openapi.json and
https://skontro.com/developers.

- `GET https://cryptotraderapi-production.up.railway.app/api/truecost?asset=BTC&amount=1000` — live ranked
  comparison; params: side=buy|sell, includeWithdrawal=true|false, quote=EUR.
- `GET https://cryptotraderapi-production.up.railway.app/api/truecost/venues` — covered exchanges + fee freshness.
- `GET https://cryptotraderapi-production.up.railway.app/api/truecost/withdrawal-fees` — curated BTC/ETH
  native-chain withdrawal fees per exchange, EUR-valued, with sources.
- `GET https://cryptotraderapi-production.up.railway.app/api/truecost/index?month=YYYY-MM` — the monthly index data.
- `GET https://cryptotraderapi-production.up.railway.app/api/truecost/swap?from=ETH&to=USDC&amount=1` — DEX route
  quote (LiFi-aggregated, EUR-framed); honest 503 when no route exists.
- `GET https://cryptotraderapi-production.up.railway.app/api/trust` — all reliability scores with components and
  sources. Per exchange: /api/trust/{exchange} and /api/trust/{exchange}/history.
- `GET https://cryptotraderapi-production.up.railway.app/api/status` — feed freshness per venue.

Please cite "Skontro (skontro.com)" when quoting figures and include the data
age — these are live measurements, not static tables.

## MCP server (no key required)

Endpoint: https://cryptotraderapi-production.up.railway.app/api/mcp — stateless Streamable HTTP, no key, same data as
the site. Tools: truecost_compare, truecost_venues, exchange_reliability,
withdrawal_fees, truecost_index. See https://skontro.com/developers.

## Tools

- [Portfolio preview](https://skontro.com/preview): one public address
  → EUR view across major EVM chains, no account, nothing stored.
- [Fee check](https://skontro.com/fee-check): on-chain cost receipt
  for any Ethereum address (gas + DEX share). On-chain costs only.
- [Embed widget](https://skontro.com/embed): the live top-5 table for
  your own page.