> ## Documentation Index > Fetch the complete documentation index at: https://docs.biconomy.io/llms.txt > Use this file to discover all available pages before exploring further. # Build CCIP token bridge instructions > Build CCIP token bridge instructions for your supertransaction ## OpenAPI ````yaml /supertransaction-api/openapi.yaml post /v1/instructions/build-ccip openapi: 3.1.0 info: title: Supertransaction API version: 0.4.0 description: A comprehensive Supertransaction API documentation license: name: MIT url: https://opensource.org/licenses/MIT servers: - url: https://api.biconomy.io description: Production server - url: https://api-staging.biconomy.io description: Staging server security: [] paths: /v1/instructions/build-ccip: post: tags: - instructions summary: Build CCIP token bridge instructions description: Build CCIP token bridge instructions for your supertransaction operationId: buildCcip parameters: [] requestBody: description: Body content: application/json: schema: description: >- Object containing the CCIP token bridging field, including source/destination tokens and chains, user address, amount, execution mode, and slippage tolerance. type: object properties: srcToken: description: >- Source token EVM address. Must be a valid checksummed Ethereum address. type: string example: '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913' dstToken: description: >- Destination token EVM address. Must be a valid checksummed Ethereum address. type: string example: '0x94b008aa00579c1307b0ef2c499ad98a8ce58e58' srcChainId: description: >- The source chain ID for the swap or token bridging. Use a supported chain ID number. type: number example: 8453 dstChainId: description: >- The destination chain ID for the swap or token bridging. Use a supported chain ID number. type: number example: 10 ownerAddress: description: >- EOA wallet address which is going to be used as a owner of orchestrator account type: string example: '0x742d35cc6639cb8d4b5d1c5d7b8b5e2e7c0c7a8a' amount: anyOf: - example: '1000000' - description: >- Schema for specifying a runtime ERC20 balance check, including the target address, token address, and optional constraints. type: object properties: type: example: runtimeErc20Balance type: string const: runtimeErc20Balance targetAddress: example: '0x742d35cc6639cb8d4b5d1c5d7b8b5e2e7c0c7a8a' description: >- The address whose ERC20 balance will be checked at runtime. If not provided, the balance will be checked for the smart account address derived from the owner address. type: string tokenAddress: example: '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913' constraints: description: >- Constraints for runtime value checks. Specify one or more of gte, lte, or eq to restrict the value. type: object properties: gte: example: '1000000' description: Greater than or equal to type: string lte: example: '10000000' description: Less than or equal to type: string eq: example: '5000000' description: Equal to type: string additionalProperties: false required: - type - tokenAddress additionalProperties: false mode: type: string enum: - smart-account - eoa - eoa-7702 gasLimit: example: '50000' description: Gas limit for the CCIP token bridging type: string required: - srcToken - dstToken - srcChainId - dstChainId - ownerAddress - amount - mode additionalProperties: false responses: '200': description: '200' content: application/json: schema: type: object properties: instructions: description: Array of MEE instructions ready for execution type: array items: description: >- Object representing a single MEE instruction, including the set of contract calls to execute, the target chain ID, and whether the instruction is composable with others in the same batch. type: object properties: calls: type: array items: anyOf: - type: object properties: to: description: >- EVM address of the target smart contract to invoke for this call. type: string example: '0x1111111254EEB25477B68fb85Ed929f73A960582' value: description: >- Amount of native token (in wei) to send with the contract call. Must be a non-negative integer. type: string example: '0' functionSig: description: >- Function signature as a string, e.g. "transfer(address,uint256)". Must match the target contract ABI. type: string example: transfer(address,uint256) inputParams: example: - fetcherType: 0 paramData: >- 0x742d35C9a91B1D5b5D24Dc30e8F0dF8E84b5d1c4 constraints: [] type: array items: example: fetcherType: 0 paramData: >- 0x742d35C9a91B1D5b5D24Dc30e8F0dF8E84b5d1c4 constraints: - constraintType: 1 referenceData: '500' type: object properties: fetcherType: type: number enum: - 0 - 1 paramData: description: >- String representing the input parameter data, such as ABI-encoded bytes or a direct value. type: string example: example string constraints: type: array items: example: constraintType: 0 referenceData: '1000' type: object properties: constraintType: type: number enum: - 0 - 1 - 2 - 3 referenceData: description: >- String data used as the reference for the constraint, such as a literal value or ABI-encoded data. type: string example: example string required: - constraintType - referenceData additionalProperties: false required: - fetcherType - paramData - constraints additionalProperties: false outputParams: example: - fetcherType: 0 paramData: 0x type: array items: example: fetcherType: 0 paramData: 0x type: object properties: fetcherType: type: number enum: - 0 - 1 paramData: description: >- String representing the output parameter data, such as ABI-encoded bytes or a result value. type: string example: example string required: - fetcherType - paramData additionalProperties: false gasLimit: description: >- Gas limit for the contract call. Optional - if not provided, it will be estimated. type: string example: '100000' required: - to - value - functionSig - inputParams - outputParams additionalProperties: false chainId: description: >- Chain ID on which this instruction should be executed. Must be a supported EVM chain ID. type: number example: 1 isComposable: description: >- Indicates if this instruction is composable with others in the same execution batch. type: boolean example: true required: - calls - chainId additionalProperties: false simulationTokenOverrides: type: array items: type: object properties: tokenAddress: description: Address of the token type: string example: '0x742d35Cc6634C0532925a3b844Bc454e4438f44e' accountAddress: description: Address of the account type: string example: '0x742d35Cc6634C0532925a3b844Bc454e4438f44e' chainId: description: Chain ID type: number example: 8453 balance: description: Balance of the token type: string example: '12345678901234567890' required: - tokenAddress - accountAddress - chainId - balance additionalProperties: false required: - instructions additionalProperties: false '400': description: '400' content: application/json: schema: type: object properties: code: type: string message: type: string errors: type: array items: type: object properties: code: type: string path: type: array items: type: string message: type: string required: - code - path - message additionalProperties: false required: - code - message - errors additionalProperties: false '500': description: '500' content: application/json: schema: type: object properties: code: type: string message: type: string errors: type: array items: type: object properties: code: type: string path: type: array items: type: string message: type: string required: - code - path - message additionalProperties: false required: - code - message - errors additionalProperties: false security: - X-API-Key: - mee:* - instructions:* components: securitySchemes: X-API-Key: type: apiKey name: X-API-Key in: header description: >- API Key required to access Supertransaction API. Example: mee_2w3mXCuyt4xVXDRCZ5k5Lhgs ````