openapi.yaml

openapi: 3.0.2
servers:
  - url: http://localhost:20443/
    description: Local
info:
  title: Stacks 2.0 RPC API
  version: '1.0.0'
  description: |
    This is the documentation for the `stacks-node` RPC interface.

paths:
  /v2/transactions:
    post:
      summary: Broadcast raw transaction
      tags:
        - Transactions
      description: Broadcast raw transactions on the network. You can use the [@stacks/transactions](https://github.com/blockstack/stacks.js) project to generate a raw transaction payload.
      operationId: post_core_node_transactions
      requestBody:
        content:
          application/octet-stream:
            schema:
              type: string
              format: binary
            example: binary format of 00000000010400bed38c2aadffa348931bcb542880ff79d607afec000000000000000000000000000000c800012b0b1fff6cccd0974966dcd665835838f0985be508e1322e09fb3d751eca132c492bda720f9ef1768d14fdabed6127560ba52d5e3ac470dcb60b784e97dc88c9030200000000000516df0ba3e79792be7be5e50a370289accfc8c9e032000000000000303974657374206d656d6f00000000000000000000000000000000000000000000000000
      responses:
        200:
          description: Transaction id of successful post of a raw tx to the node's mempool
          content:
            text/plain:
              schema:
                type: string
                example: '"e161978626f216b2141b156ade10501207ae535fa365a13ef5d7a7c9310a09f2"'
        400:
          description: Rejections result in a 400 error
          content:
            application/json:
              schema:
                $ref: ./api/transaction/post-core-node-transactions-error.schema.json
              example:
                $ref: ./api/transaction/post-core-node-transactions-error.example.json

  /v2/contracts/interface/{contract_address}/{contract_name}:
    get:
      summary: Get contract interface
      description: Get contract interface using a `contract_address` and `contract name`
      tags:
        - Smart Contracts
      operationId: get_contract_interface
      responses:
        200:
          description: Contract interface
          content:
            application/json:
              schema:
                $ref: ./api/core-node/get-contract-interface.schema.json
              example:
                $ref: ./api/core-node/get-contract-interface.example.json
    parameters:
      - name: contract_address
        in: path
        required: true
        description: Stacks address
        schema:
          type: string
      - name: contract_name
        in: path
        required: true
        description: Contract name
        schema:
          type: string
      - name: tip
        in: query
        schema:
          type: string
        description: The Stacks chain tip to query from. If tip == latest, the query will be run from the latest
          known tip (includes unconfirmed state).
  /v2/map_entry/{contract_address}/{contract_name}/{map_name}:
    post:
      summary: Get specific data-map inside a contract
      tags:
        - Smart Contracts
      operationId: get_contract_data_map_entry
      description: |
        Attempt to fetch data from a contract data map. The contract is identified with [Stacks Address] and [Contract Name] in the URL path. The map is identified with [Map Name].

        The key to lookup in the map is supplied via the POST body. This should be supplied as the hex string serialization of the key (which should be a Clarity value). Note, this is a JSON string atom.

        In the response, `data` is the hex serialization of the map response. Note that map responses are Clarity option types, for non-existent values, this is a serialized none, and for all other responses, it is a serialized (some ...) object.
      responses:
        200:
          description: Success
          content:
            application/json:
              schema:
                $ref: ./api/core-node/get-contract-data-map-entry.schema.json
              example:
                $ref: ./api/core-node/get-contract-data-map-entry.example.json
        400:
          description: Failed loading data map
      parameters:
        - name: contract_address
          in: path
          required: true
          description: Stacks address
          schema:
            type: string
        - name: contract_name
          in: path
          required: true
          description: Contract name
          schema:
            type: string
        - name: map_name
          in: path
          required: true
          description: Map name
          schema:
            type: string
        - name: proof
          in: query
          description: Returns object without the proof field when set to 0
          schema:
            type: integer
        - name: tip
          in: query
          schema:
            type: string
          description: The Stacks chain tip to query from. If tip == latest, the query will be run from the latest
            known tip (includes unconfirmed state).
      x-codegen-request-body-name: key
      requestBody:
        description: Hex string serialization of the lookup key (which should be a Clarity value)
        required: true
        content:
          application/json:
            schema:
              type: string

  /v2/contracts/source/{contract_address}/{contract_name}:
    get:
      summary: Get contract source
      tags:
        - Smart Contracts
      operationId: get_contract_source
      description: Returns the Clarity source code of a given contract, along with the block height it was published in, and the MARF proof for the data
      responses:
        200:
          description: Success
          content:
            application/json:
              schema:
                $ref: ./api/core-node/get-contract-source.schema.json
              example:
                $ref: ./api/core-node/get-contract-source.example.json
    parameters:
      - name: contract_address
        in: path
        required: true
        description: Stacks address
        schema:
          type: string
      - name: contract_name
        in: path
        required: true
        description: Contract name
        schema:
          type: string
      - name: proof
        in: query
        description: Returns object without the proof field if set to 0
        schema:
          type: integer
      - name: tip
        in: query
        schema:
          type: string
        description: The Stacks chain tip to query from. If tip == latest, the query will be run from the latest
          known tip (includes unconfirmed state).
        required: false

  /v2/contracts/call-read/{contract_address}/{contract_name}/{function_name}:
    post:
      summary: Call read-only function
      tags:
        - Smart Contracts
      operationId: call_read_only_function
      description: |
        Call a read-only public function on a given smart contract.

        The smart contract and function are specified using the URL path. The arguments and the simulated tx-sender are supplied via the POST body in the following JSON format:
      responses:
        200:
          description: Success
          content:
            application/json:
              schema:
                $ref: ./api/contract/post-call-read-only-fn.schema.json
              examples:
                success:
                  $ref: ./api/contract/post-call-read-only-fn-success.example.json
                fail:
                  $ref: ./api/contract/post-call-read-only-fn-fail.example.json
      parameters:
        - name: contract_address
          in: path
          required: true
          description: Stacks address
          schema:
            type: string
        - name: contract_name
          in: path
          required: true
          description: Contract name
          schema:
            type: string
        - name: function_name
          in: path
          required: true
          description: Function name
          schema:
            type: string
        - name: tip
          in: query
          schema:
            type: string
          description: The Stacks chain tip to query from. If tip == latest, the query will be run from the latest
            known tip (includes unconfirmed state).
          required: false
      requestBody:
        description: map of arguments and the simulated tx-sender where sender is either a Contract identifier or a normal Stacks address, and arguments is an array of hex serialized Clarity values.
        required: true
        content:
          application/json:
            schema:
              $ref: './entities/contracts/read-only-function-args.schema.json'
              example:
                sender: 'SP31DA6FTSJX2WGTZ69SFY11BH51NZMB0ZW97B5P0.get-info'
                arguments:
                  - '0x0011...'
                  - '0x00231...'

  /v2/accounts/{principal}:
    get:
      summary: Get account info
      tags:
        - Accounts
      operationId: get_account_info
      description: |
        Get the account data for the provided principal

        Where balance is the hex encoding of a unsigned 128-bit integer (big-endian), nonce is a unsigned 64-bit integer, and the proofs are provided as hex strings.

        For non-existent accounts, this does not 404, rather it returns an object with balance and nonce of 0.
      parameters:
        - name: principal
          in: path
          description: Stacks address or a Contract identifier (e.g. `SP31DA6FTSJX2WGTZ69SFY11BH51NZMB0ZW97B5P0.get-info`)
          required: true
          schema:
            type: string
        - name: proof
          in: query
          description: Returns object without the proof field if set to 0
          schema:
            type: integer
        - name: tip
          in: query
          schema:
            type: string
          description: The Stacks chain tip to query from. If tip == latest, the query will be run from the latest
            known tip (includes unconfirmed state).
      responses:
        200:
          description: Success
          content:
            application/json:
              schema:
                $ref: ./api/core-node/get-account-data.schema.json
              example:
                $ref: ./api/core-node/get-account-data.example.json

  /v2/fees/transaction:
    post:
      summary: Get approximate fees for the given transaction
      tags:
        - Fees
      description: |
        Get an estimated fee for the supplied transaction.  This
        estimates the execution cost of the transaction, the current
        fee rate of the network, and returns estimates for fee
        amounts.

        * `transaction_payload` is a hex-encoded serialization of
          the TransactionPayload for the transaction.
        * `estimated_len` is an optional argument that provides the
          endpoint with an estimation of the final length (in bytes)
          of the transaction, including any post-conditions and
          signatures

        If the node cannot provide an estimate for the transaction
        (e.g., if the node has never seen a contract-call for the
        given contract and function) or if estimation is not
        configured on this node, a 400 response is returned.
        The 400 response will be a JSON error containing a `reason`
        field which can be one of the following:

        * `DatabaseError` - this Stacks node has had an internal
          database error while trying to estimate the costs of the
          supplied transaction.
        * `NoEstimateAvailable` - this Stacks node has not seen this
          kind of contract-call before, and it cannot provide an
          estimate yet.
        * `CostEstimationDisabled` - this Stacks node does not perform
          fee or cost estimation, and it cannot respond on this
          endpoint.

        The 200 response contains the following data:

        * `estimated_cost` - the estimated multi-dimensional cost of
          executing the Clarity VM on the provided transaction.
        * `estimated_cost_scalar` - a unitless integer that the Stacks
          node uses to compare how much of the block limit is consumed
          by different transactions. This value incorporates the
          estimated length of the transaction and the estimated
          execution cost of the transaction. The range of this integer
          may vary between different Stacks nodes. In order to compute
          an estimate of total fee amount for the transaction, this
          value is multiplied by the same Stacks node's estimated fee
          rate.
        * `cost_scalar_change_by_byte` - a float value that indicates how
          much the `estimated_cost_scalar` value would increase for every
          additional byte in the final transaction.
        * `estimations` - an array of estimated fee rates and total fees to
          pay in microSTX for the transaction. This array provides a range of
          estimates (default: 3) that may be used. Each element of the array
          contains the following fields:
            * `fee_rate` - the estimated value for the current fee
              rates in the network
            * `fee` - the estimated value for the total fee in
              microSTX that the given transaction should pay. These
              values are the result of computing:
              `fee_rate` x `estimated_cost_scalar`.
              If the estimated fees are less than the minimum relay
              fee `(1 ustx x estimated_len)`, then that minimum relay
              fee will be returned here instead.


        Note: If the final transaction's byte size is larger than
        supplied to `estimated_len`, then applications should increase
        this fee amount by:

          `fee_rate` x `cost_scalar_change_by_byte` x (`final_size` - `estimated_size`)

      operationId: post_fee_transaction
      requestBody:
        content:
          application/json:
            schema:
              $ref: ./api/core-node/post-fee-transaction.schema.json
            example:
              $ref: ./api/core-node/post-fee-transaction.example.json
      responses:
        200:
          description: Estimated fees for the transaction
          content:
            application/json:
              schema:
                $ref: ./api/core-node/post-fee-transaction-response.schema.json
              example:
                $ref: ./api/core-node/post-fee-transaction-response.example.json

  /v2/fees/transfer:
    get:
      summary: Get estimated fee
      tags:
        - Fees
      operationId: get_fee_transfer
      description: Get an estimated fee rate for STX transfer transactions. This a a fee rate / byte, and is returned as a JSON integer
      responses:
        200:
          description: Success
          content:
            application/json:
              schema:
                $ref: ./api/core-node/get-fee-transfer.schema.json
              example:
                $ref: ./api/core-node/get-fee-transfer.example.json

  /v2/info:
    get:
      summary: Get Core API info
      description: Get Core API information
      tags:
        - Info
      operationId: get_core_api_info
      responses:
        200:
          description: Success
          content:
            application/json:
              schema:
                $ref: ./api/core-node/get-info.schema.json
              example:
                $ref: ./api/core-node/get-info.example.json

  /v2/pox:
    get:
      summary: Get PoX details
      description: Get Proof of Transfer (PoX) information. Can be used for Stacking.
      tags:
        - Info
      operationId: get_pox_info
      responses:
        200:
          description: Success
          content:
            application/json:
              schema:
                $ref: ./api/core-node/get-pox.schema.json
              example:
                $ref: ./api/core-node/get-pox.example.json
      parameters:
        - name: tip
          in: query
          schema:
            type: string
          description: The Stacks chain tip to query from. If tip == latest, the query will be run from the latest
            known tip (includes unconfirmed state).

  /v2/traits/{contract_address}/{contract_name}/{trait_contract_address}/{trait_contract_name}/{trait_name}:
    get:
      summary: Get trait implementation details
      description: Determine whether or not a specified trait is implemented (either explicitly or implicitly) within a given contract.
      tags:
        - Smart Contracts
      operationId: get_is_trait_implemented
      responses:
        200:
          description: Success
          content:
            application/json:
              schema:
                $ref: ./api/trait/get-is-trait-implemented.schema.json
              example:
                $ref: ./api/trait/get-is-trait-implemented.example.json
    parameters:
      - name: contract_address
        in: path
        required: true
        description: Stacks address
        schema:
          type: string
      - name: contract_name
        in: path
        required: true
        description: Contract name
        schema:
          type: string
      - name: trait_contract_address
        in: path
        required: true
        description: Trait Stacks address
        schema:
          type: string
      - name: trait_contract_name
        in: path
        required: true
        description: Trait contract name
        schema:
          type: string
      - name: trait_name
        in: path
        required: true
        description: Trait name
        schema:
          type: string
      - name: tip
        in: query
        schema:
          type: string
        description: |
          The Stacks chain tip to query from.
          If tip == "latest", the query will be run from the latest known tip (includes unconfirmed state).
          If the tip is left unspecified, the stacks chain tip will be selected (only includes confirmed state). 

  /v2/constant_val/{contract_address}/{contract_name}/{constant_name}:
    post:
      summary: Get the value of a constant inside a contract
      tags:
        - Smart Contracts
      operationId: get_constant_val
      description: |
        Attempt to fetch the value of a constant inside a contract. The contract is identified with [Stacks Address] and [Contract Name] in the URL path. The constant is identified with [Constant Name].

        In the response, `data` is the hex serialization of the constant value.
      responses:
        200:
          description: Success
          content:
            application/json:
              schema:
                $ref: ./api/core-node/get-constant-val.schema.json
              example:
                $ref: ./api/core-node/get-constant-val.example.json
        400:
          description: Failed to retrieve constant value from contract
      parameters:
        - name: contract_address
          in: path
          required: true
          description: Stacks address
          schema:
            type: string
        - name: contract_name
          in: path
          required: true
          description: Contract name
          schema:
            type: string
        - name: constant_name
          in: path
          required: true
          description: Constant name
          schema:
            type: string
        - name: tip
          in: query
          schema:
            type: string
          description: The Stacks chain tip to query from. If tip == latest, the query will be run from the latest
            known tip (includes unconfirmed state).