openapi: 3.0.3 info: title: Chainstack Arbitrum Node Account Info Tempo Specific API version: 1.0.0 description: Chainstack-managed RPC node API for the Arbitrum blockchain. Endpoints follow the canonical JSON-RPC over HTTPS interface for the network. Authenticate against your Chainstack node's per-node URL (e.g. https://nd-XXX-XXX-XXX.p2pify.com/). Merged from the Chainstack Developer Portal per-method fragments at https://github.com/chainstack/dev-portal/tree/main/openapi/arbitrum_node_api. contact: name: Chainstack API Support email: support@chainstack.com license: name: Chainstack Terms url: https://chainstack.com/terms-of-service/ servers: - url: https://{node_id}.p2pify.com/{api_key} description: Chainstack-managed node endpoint variables: node_id: default: nd-000-000-000 description: Your Chainstack node identifier api_key: default: description: Per-node access key tags: - name: Tempo Specific paths: /eth_sendRawTransactionSync: post: tags: - Tempo Specific summary: eth_sendRawTransactionSync operationId: tempo-eth-sendRawTransactionSync requestBody: required: true content: application/json: schema: type: object properties: jsonrpc: type: string default: '2.0' method: type: string default: eth_sendRawTransactionSync params: type: array items: {} default: - '0xf867808502540e841e825208949729187d9e8bbefa8295f39f5634ca454dd9d294808083014b9da00602a6c9850068ac6667c098f65cf061e5e90d7030a63d13396dc6d0522fe517a07a0f9c9455612fcacfce60fba7c6e305728148f3ec345661535d0230f872f224' description: Signed transaction data id: type: integer default: 1 responses: '200': description: The transaction receipt content: application/json: schema: type: object properties: jsonrpc: type: string id: type: integer result: type: object nullable: true description: The transaction receipt object, returned once the transaction is included in a block /tempo_fundAddress: post: tags: - Tempo Specific summary: tempo_fundAddress operationId: tempo-tempo-fundAddress description: Funds an address with testnet stablecoins (pathUSD, AlphaUSD, BetaUSD, ThetaUSD). Testnet only. requestBody: required: true content: application/json: schema: type: object properties: jsonrpc: type: string default: '2.0' method: type: string default: tempo_fundAddress params: type: array items: {} default: - '0xc2F695613de0885dA3bdd18E8c317B9fAf7d4eba' description: The address to fund with testnet tokens id: type: integer default: 1 responses: '200': description: Array of transaction hashes for each funded token content: application/json: schema: type: object properties: jsonrpc: type: string id: type: integer result: type: array items: type: string description: Array of transaction hashes (one per funded token)