[[Node|Cellframe Node]] is a background service for Linux/Windows/Mac OS's and also pluggable library for Android/iOS. This service exports socket, which address/path is decribed in base config ([[2. Cellframe Node Configuration|Configuration]]) in conserver section for external control. For client interactions on desktops of UNIX-based OS is used UNIX-socket, for Windows/Android/iOS is used TCP-socket. This all can be tuned by using **`listen_unix_socket_path`** and **`listen_port_tcp`** parameters. There is protocol for interaction between user and service called [[1. Introduction|JSON_RPC]]. There is an RPC-client with [[Cellframe-Node-CLI|Cellframe Node CLI]] has already included in the [[Node|cellframe node]] package. It is provided and built with the Cellframe node service and realises CLI interface which works according to JSON-RPC protocol. Below there are two examples of interaction with the node: 1. The first one is *local*, you can use [[Cellframe-Node-CLI|Cellframe-Node CLI]] `Command:` ```actionscript cellframe-node-cli help|? ``` `Response:` ``` Available commands: srv_stake: Delegated stake service commands dag: DAG commands dag_poa: DAG PoA commands block: Create and explore blockchains block_poa: Blockchain PoA commands esbocs: ESBOCS commands net: Network commands net_srv: Network services managment srv_xchange: eXchange service commands stake_lock: Stake lock service commands srv_datum: Service Datum commands vpn_client: VPN client control global_db: Work with global database mempool: Sign operations node: Work with node ping: Send ICMP ECHO_REQUEST to network hosts traceroute: Print the hops and time of packets trace to network host tracepath: Traces path to a network host along this path version: Return software version help: Description of command parameters ?: Synonym for "help" wallet: Wallet operations token_update: Token update token_decl: Token declaration token_update_sign: Token update add sign and new sign token_decl_sign: Token declaration add sign token_emit: Token emission mempool: Command for working with mempool chain_ca_pub: Add pubic certificate into the mempool to prepare its way to chains chain_ca_copy: Copy pubic certificate into the mempool to prepare its way to chains tx_create: Make transaction tx_create_json: Make transaction tx_cond_create: Make cond transaction tx_verify: Verifing transaction in mempool tx_history: Transaction history (for address or by hash) ledger: Ledger information token: Token info print_log: Print log info stats: Print statistics gdb_export: Export gdb to JSON gdb_import: Import gdb from JSON remove: Delete chain files or global database decree: Work with decree exit: Stop application and exit ``` 2. The next one is provided by [[1. Introduction|JSON_RPC]] `Command:` ```actionscript curl --unix-socket /opt/cellframe-node/var/run/node_cli -X POST http://localhost/connect -d '{"method":"help", "params":[], "id":"1"}' ``` `Response:` ```actionscript { "type": 0, "result": "as in cli response", "errors": null, "id": 1 } ```