1st Node
ProductsSolutionsGuidesComparePricingDocs
EnglishРусский中文EspañolPortuguêsTürkçe日本語
Sign inGet API key
Guides

Guides

Step-by-step how-tos for the primitives, grounded in real requests. Each guide takes one job end to end.

AMLScreen a crypto deposit for AML risk

Step-by-step: call address risk-score before crediting a deposit, read the exposure breakdown and route the decision to allow, review or block.

Data / RPCQuery historical chain data over archive RPC

Read any historical block, decoded transaction or log over archive RPC — without running a node — and page through results with credit-metered calls.

ProcessingBuild, sign and broadcast a transaction

Assemble a transfer, simulate it to catch failures, sign it and broadcast — all from one key across BTC, ETH and TRON.

PaymentsAccept a crypto payment with an invoice

Create an invoice, show a checkout, and confirm settlement via webhook — accept crypto without building processing infrastructure.

Market dataFetch spot prices and OHLCV candles

Pull current spot prices and historical OHLCV candles for charts, valuations and backtests — one endpoint, credit-metered.

IntelligenceTrace fund flow across hops

Follow value across addresses to find exposure to mixers, sanctioned entities or known clusters, and read the counterparty graph behind an address.

▲
1st Node

One API, one key, one balance for everything crypto.

Product
  • Primitives
  • Solutions
  • Pricing
  • Compare
Chains
  • Bitcoin API
  • Ethereum API
  • TRON API
  • All chains
Developers
  • Docs
  • Guides
  • Reference builds
  • Glossary
© 2026 1st Node. Built on own archive nodes.