Cryptoapis Io

Manage synced addresses for Address History APIs. Cursor pagination for 'list': use 'nextStartingAfter' as 'startingAfter'. Actions: • sync: Add new address to sync (requires 'address') • list: Get all synced addresses for blockchain/network • activate: Reactivate a paused address (requires 'address') • delete: Remove synced address (requires 'address') Blockchain → Networks: • ether

Query EVM address full history (requires synced address). Cursor pagination: use 'nextStartingAfter' from response as 'startingAfter'. Actions & supported blockchains: • get-statistics: ethereum, ethereum-classic • list-transactions: ethereum, ethereum-classic, binance-smart-chain, polygon, tron • list-transactions-by-timestamp: ethereum, ethereum-classic (requires timestamp) • list-token

Query UTXO address full history (requires synced address). Pagination: • list-transactions, list-transactions-by-timestamp: cursor pagination (use 'nextStartingAfter' → 'startingAfter') • list-unspent-outputs: offset pagination (use 'offset', response has 'total') Actions & supported blockchains: • get-statistics: bitcoin, bitcoin-cash • list-transactions: bitcoin, bitcoin-cash, liteco

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Query latest EVM address data (last 14 days). Cursor pagination: use 'nextStartingAfter' from response as 'startingAfter'. Actions & supported blockchains: • get-balance: ethereum, ethereum-classic, binance-smart-chain, tron, polygon, avalanche (C-Chain), arbitrum, base, optimism • get-next-nonce: ethereum, ethereum-classic, binance-smart-chain (mainnet, mordor, testnet, sepolia) • list-tra

Query latest UTXO address data (last 14 days). • get-balance: no pagination • list-transactions: cursor pagination - use 'nextStartingAfter' from response as 'startingAfter' • list-unconfirmed-transactions: offset pagination - use 'limit' and 'offset' (lists unconfirmed/mempool transactions) Actions & supported blockchains: • get-balance: bitcoin, bitcoin-cash, litecoin, dash, dogecoin, z

Query latest Solana address data (last 14 days). Cursor pagination: use 'nextStartingAfter' from response as 'startingAfter'. Actions: • get-balance: Get address SOL balance • list-transactions: Get address transactions • list-tokens: Get SPL tokens held by address Networks: mainnet, devnet Credits by action (source: OpenAPI): • get-balance: solana 75 • list-tokens: solana 120 • lis

Query latest XRP (Ripple) address data. Cursor pagination: use 'nextStartingAfter' from response as 'startingAfter'. Actions: • get-balance: Get address XRP balance • list-transactions: Get address transactions • get-next-sequence: Get next available sequence number for transactions Networks: mainnet, testnet Credits by action (source: OpenAPI): • get-balance: xrp 20 • get-next-sequen

Query latest Kaspa address data. Cursor pagination: use 'nextStartingAfter' from response as 'startingAfter'. Actions: • get-balance: Get address KAS balance • list-transactions: Get address transactions Networks: mainnet (only) Credits by action (source: OpenAPI): • get-balance: kaspa 918 • list-transactions: kaspa 918 Credits are indicative only and may change at any time. The actual

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

AML (Anti-Money Laundering) risk checks for addresses and transactions. Actions: • verify-address: Check if a blockchain address is flagged or associated with fraud, sanctions, ransomware, exploits, darknet markets, or other AML risk categories. Returns risk score, risk band, and the flagging sources. • screen-transaction: Screen a transaction against AML data. Returns whether the transaction

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Get EVM block details (Block Data product). Actions: • get-block-by-height: Get block details by block height (number) • get-block-by-hash: Get block details by block hash • list-transactions-by-block-hash: List transactions in a block by block hash • list-transactions-by-block-height: List transactions in a block by block height • get-last-mined-block: Get the latest mined block detail

Get UTXO block details (Block Data product). Actions: • get-block-by-height: Get block details by block height (number) • get-block-by-hash: Get block details by block hash • list-transactions-by-block-height: List transactions in a block by block height • list-transactions-by-block-hash: List transactions in a block by block hash • get-last-mined-block: Get the latest mined block detai

Get XRP block details (Block Data product). Path uses network only (no blockchain). Networks: mainnet, testnet. Actions: • get-block-by-height: Get block details by block height (number) • get-block-by-hash: Get block details by block hash • list-transactions-by-block-height: List transactions in a block by block height • list-transactions-by-block-hash: List transactions in a block by bl

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Manage existing webhook subscriptions for on-chain events. Use this to view, delete, or re-activate event subscriptions created via blockchain_events_create. Actions: • list-subscriptions: List all active subscriptions for a blockchain/network (paginated) • get-subscription: Get details of a specific subscription by its referenceId • delete-subscription: Remove a subscription (stops webhook

Create a webhook subscription for on-chain events. When the specified event occurs, CryptoAPIs sends a POST request to your callbackUrl with the event data. Subscriptions persist until deleted. Event types (supported blockchains vary per type — an invalid blockchain for the chosen eventType is rejected before calling the API): • address-coins-transactions-unconfirmed: fires when an unconfirme

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Get fee recommendations for UTXO blockchains (bitcoin, bitcoin-cash, litecoin, dogecoin, dash, zcash). Use this before preparing or signing a transaction to determine the appropriate fee rate. Actions: • get-fee-recommendations: Get recommended fee-per-byte tiers (slow/standard/fast) from the mempool • estimate-transaction-smart-fee: Estimate the fee rate needed for confirmation within a targ

Get fee recommendations and estimate gas costs for EVM blockchains. Use this before preparing or signing a transaction to determine appropriate gas parameters. Actions: • get-fee-recommendations: Get recommended gas price tiers (slow/standard/fast) • get-eip-1559-fee-recommendations: Get EIP-1559 fee parameters (baseFee, maxPriorityFee) for supported chains • estimate-native-coin-transfer-g

Blockchain Fees XRP: get fee recommendations. Networks: mainnet, testnet. Credits per call: 20 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

Blockchain Fees Tezos: fee recommendations and fee estimation for XTZ, FA1.2, and FA2 transfers. Actions: • get-fee-recommendations: Get current minimal fee/cost rates from the mempool • estimate-transfer: Estimate the fee for a native XTZ transfer • estimate-fa12-transfer: Estimate the fee for an FA1.2 token transfer • estimate-fa2-transfer: Estimate the fee for an FA2 token transfer Cr

Blockchain Fees Solana: fee recommendations and compute-unit estimation. Solana uses compute units (not gas), so this is a distinct cost model from EVM. Actions: • get-fee-recommendations: Get current priority fee recommendations from the mempool • estimate-native-coin-transfer-compute-units: Estimate compute units for a native SOL transfer • estimate-token-transfer-compute-units: Estimate

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Broadcast locally signed transaction (Broadcast product). Submit a signed transaction hex to the network. Supported blockchains and networks vary; see credits for per-chain cost. Note: 'broadcast-signed-transaction' actions require confirmation. They return a preview with a one-time token instead of executing immediately. Credits by action (source: OpenAPI): • broadcast-signed-transaction: ar

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Get EVM contract token details (Contracts product). Actions: • get-token-details-by-contract-address: Get token details (name, symbol, standard, decimals, totalSupply) by contract address Blockchain → Networks: • ethereum: mainnet, sepolia • ethereum-classic: mainnet, mordor • binance-smart-chain: mainnet, testnet Credits by action (source: OpenAPI): • get-token-details-by-contract-

Get Solana contract token details (Contracts product). Actions: • get-token-details-by-contract-address: Get token details by contract address Networks: mainnet, devnet Credits by action (source: OpenAPI): • get-token-details-by-contract-address: 75 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Manage HD wallets identified by extended public key (xPub/yPub/zPub). Private keys never leave the user's device — only the extended public key is sent to CryptoAPIs for address derivation and balance tracking. Actions: • sync-wallet: Register an xPub to start syncing its addresses and balances • list-wallets: List all synced HD wallets for a blockchain/network • activate-wallet: Re-activ

Query HD wallet data for UTXO blockchains (bitcoin, litecoin, bitcoin-cash, dogecoin, dash, zcash) by extended public key (xPub/yPub/zPub). The wallet must first be synced via manage_hd_wallet. Offset pagination: use 'limit' and 'offset' for paged results. Actions: • derive-receiving-address: Derive the next unused receiving address • derive-change-address: Derive the next unused change addre

Query HD wallet data for EVM blockchains by extended public key (xPub). The wallet must first be synced via manage_hd_wallet. Offset pagination: use 'limit' and 'offset' for paged results. Actions: • derive-receiving-address: Derive the next unused receiving address • list-addresses: List all derived addresses for the wallet • list-transactions: List transactions across all wallet addresses

Query HD wallet data for XRP (Ripple) by extended public key (xPub). The wallet must first be synced via manage_hd_wallet. Offset pagination: use 'limit' and 'offset' for paged results. Actions: • derive-receiving-address: Derive the next unused receiving address • list-addresses: List all derived addresses for the wallet • list-transactions: List transactions across all wallet addresses â€

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Market Data metadata (list supported assets). Actions: • list-supported-assets: List supported crypto and fiat assets (optional pagination and type filter) Credits by action (source: OpenAPI): • list-supported-assets: 10 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

Market Data exchange rates. Actions: • get-exchange-rate-by-asset-symbols: Get exchange rate between two assets by symbol (e.g. BTC, USD) • get-exchange-rate-by-asset-ids: Get exchange rate between two assets by asset ID Credits by action (source: OpenAPI): • get-exchange-rate-by-asset-ids: 10 • get-exchange-rate-by-asset-symbols: 10 Credits are indicative only and may change at any tim

Market Data assets (asset details). Actions: • get-asset-details-by-asset-id: Get asset details by unique asset ID • get-asset-details-by-asset-symbol: Get asset details by symbol (e.g. BTC, ETH) Credits by action (source: OpenAPI): • get-asset-details-by-asset-id: 10 • get-asset-details-by-asset-symbol: 10 Credits are indicative only and may change at any time. The actual credits spent

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Build unsigned EVM transactions ready for signing. Returns the raw unsigned transaction hex and fee details. After preparing, use a signing tool (e.g. evm_sign) to sign locally, then broadcast via broadcast_signed_transaction. Actions: • prepare-transaction-from-address: Build an unsigned native coin transfer (e.g. ETH, BNB) • prepare-fungible-token-transfer: Build an unsigned ERC-20 token tr

Build unsigned Tezos operations ready for signing. Returns the forged (unsigned) operation bytes and fee details. After preparing, sign locally and broadcast via broadcast_signed_transaction. Actions: • native-coins: Build an unsigned native XTZ transfer • fa1-2-tokens: Build an unsigned FA1.2 token transfer • fa2-tokens: Build an unsigned FA2 token transfer Credits by action (source: Open

Build unsigned Solana transactions ready for signing. Returns the unsigned transaction and fee details. After preparing, sign locally and broadcast via broadcast_signed_transaction. Actions: • native-coins: Build an unsigned native SOL transfer • spl-tokens: Build an unsigned SPL token transfer Credits by action (source: OpenAPI): • native-coins: 180 • spl-tokens: 240 Credits are indica

Build unsigned Kaspa transactions ready for signing. Returns the unsigned transaction and fee details. After preparing, sign locally (kaspa_sign) and broadcast via broadcast_signed_transaction. Actions: • native-coins: Build an unsigned native KAS transfer, supporting multiple recipients in one transaction Credits by action (source: OpenAPI): • native-coins: 60 Credits are indicative only a

Build unsigned XRP transactions ready for signing. Returns the unsigned transaction and fee details. After preparing, sign locally (xrp_sign) and broadcast via broadcast_signed_transaction. Actions: • native-coins: Build an unsigned native XRP transfer Credits by action (source: OpenAPI): • native-coins: 60 Credits are indicative only and may change at any time. The actual credits spent for

Build unsigned UTXO transactions ready for signing (Bitcoin, Bitcoin Cash, Litecoin, Dogecoin, Dash, Zcash). Returns the unsigned transaction and fee details. After preparing, sign locally (utxo_sign) and broadcast via broadcast_signed_transaction. Actions: • native-coins: Build an unsigned native coin transfer, supporting multiple recipients in one transaction. Requires either feePriority or e

Build unsigned Tron transactions ready for signing. Returns the unsigned transaction and fee details. After preparing, sign locally (tron_sign) and broadcast via broadcast_signed_transaction. These are Tron's dedicated prepare-transactions endpoints, distinct from the generic EVM ones used for other chains. Actions: • native-coins: Build an unsigned native TRX transfer • trc20-tokens: Build a

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Dry-run an Ethereum transaction without broadcasting it to the network (mainnet or sepolia only — this endpoint does not support other EVM chains). Returns estimated gas usage, execution success/failure, and any revert reason. Use this to validate transactions before signing and broadcasting — helpful for catching errors, estimating costs, and debugging contract interactions. Credits per call

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

Transactions Data UTXO: get transaction details or raw transaction data by hash. Actions: get-transaction-details, get-raw-transaction-data. Blockchains: bitcoin, bitcoin-cash, litecoin, dogecoin, dash, zcash. Networks: mainnet, testnet. Credits by action (source: OpenAPI): • get-raw-transaction-data: bitcoin 110, bitcoin-cash 132, dash 121, dogecoin 121, litecoin 121, zcash 143 • get-transa

Transactions Data EVM: get transaction details, internal transactions, token transfers, or logs by transaction hash. Actions: get-transaction-details, list-internal-transactions, list-token-transfers, list-logs. Credits by action (source: OpenAPI): • get-transaction-details: arbitrum 192, avalanche 216, base 144, binance-smart-chain 300, ethereum 120, ethereum-classic 156, optimism 168, polygo

Transactions Data Solana: get transaction details by transaction hash (signature). Networks: mainnet, devnet. Credits per call: 90 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

Transactions Data XRP: get transaction details by transaction hash. Networks: mainnet, testnet. Credits per call: 110 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

Transactions Data Kaspa: get transaction details by transaction ID. Network: mainnet. Credits per call: 918 Credits are indicative only and may change at any time. The actual credits spent for each API request are returned in the response headers.

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc

UTXO utils (Utils product): validate address, decode raw transaction hex, convert Bitcoin Cash address. Actions: • validate-address: Check if a UTXO address is valid • decode-raw-transaction: Decode a raw transaction hex • convert-bitcoin-cash-address: Convert Bitcoin Cash address (legacy ↔ cash format); Bitcoin Cash only, no blockchain parameter (network + address) Blockchain → Networ

EVM utils (Utils product): validate address, decode raw transaction hex. Actions: • validate-address: Check if an EVM address is valid • decode-raw-transaction: Decode a raw transaction hex Blockchain → Networks: • ethereum: mainnet, sepolia • ethereum-classic: mainnet, mordor • binance-smart-chain: mainnet, testnet • tron: mainnet, nile Credits by action (source: OpenAPI): • de

XRP utils (Utils product): validate address, decode/encode X-Address. Actions: • validate-address: Check if an XRP address is valid • decode-x-address: Decode X-Address to classic address and tag • encode-x-address: Encode classic address and tag to X-Address Networks: mainnet, testnet Credits by action (source: OpenAPI): • decode-x-address: 10 • encode-x-address: 10 • validate-addr

Utils: derive HD wallet (xPub, yPub, zPub) change or receiving addresses without syncing. GET /utils/{blockchain}/{network}/xpubs/{extendedPublicKey}/derive-addresses Derives up to 10 addresses. By default creates receiving/deposit address; set isChange=true for change address (UTXO only). Credits by action (source: OpenAPI): • binance-smart-chain: 25 • bitcoin: 10 • bitcoin-cash: 12 • d

CryptoAPIs reference documentation — no API call, no credits consumed. Actions: • blockchains — Supported blockchains, networks, products per chain, denominations, fiat currencies • errors — Complete error code table (HTTP status, error code, message) • credits — Credit charging structure, cost multipliers per blockchain, monitoring & operations taxes (xPub, synced addresses, blockc