Compile your project using the following command:

ape compile

Configure the location Ape looks for contracts by editing the contracts_folder key in your project’s ape-config.yaml file:

contracts_folder: src  # Default is 'contracts/'

The JSON Compiler

Ape ships with a compiler that is able to compile .json files. This compiler is useful for the following:

  1. Interfaces: If you know the address of an existing contract, you can include its ABI in your project and create a contract wrapper around it:

from ape import project

# Comes from a file named `MyInterface.json` in the contracts/ folder.
my_interface = project.MyInterface
address = "0x1234556b5Ed9202110D7Ecd637A4581db8b9879F"

# Instantiate a deployed contract using the local interface.
contract =

# Call a method named `my_method` found in the local contract ABI.
  1. Pre-existing Contract Types: If you have a contract type JSON that was compiled elsewhere, you can include it in your project. This is useful if you are unable or unwilling to install a compiler.

  2. Raw Compiler Output: If you have an artifact with binary compiled elsewhere, you can include it in your project. This is useful if you want to use contracts from much larger projects as dependency for your test cases.


You may have to adjust name and source ID similarly to raw contract-type output.

Other Compiler Plugins

If your project includes Solidity (.sol) or Vyper (.vy) files, you will have to install additional compilers. To include additional compilers in your project, you can add the plugins to the plugins list in your ape-config.yaml or install them using the CLI. For information on how to configure plugins in your project, follow this guide.

Exclude Files

You can configure files to be excluded from compilation. By default, Ape excludes known non-contract files such as package.json, package-lock.json, tsconfig.json, or .DS_Store. To append file-globs to the exclusions list, edit your compile:exclude config like this:

    - "examples"  # Exclude all files in the examples/ directory
    - "*Mock.sol"  # Exclude all files ending in Mock.sol
    - r"(?!.*_mock\.vy$)"  # You can also use regex instead of globs (prefix with `r`).

You can also exclude files using the --config-override CLI option:

ape compile --config-override '{"compile": {"exclude": ["*Mock.sol"]}}'


In Ape, compiler plugins typically let you have dependencies. See this guide to learn more about configuring dependencies in Ape.

To always compile dependencies in Ape during the ape compile command, use the CLI flag --include-dependencies:

ape compile --include-dependencies

Alternatively, configure it to always happen:

  use_dependencies: true


Generally, configure compiler plugins using your ape-config.yaml file.

For example, when using the vyper plugin, you can configure settings under the vyper key:

  version: 0.3.10

When using the CLI, you can also specify settings using the --config-override. This is not limited to compiler settings; you can include other settings, such as "contracts_folder", which affects compiling.

ape compile --config-override '{"contracts_folder": "other_contracts", "vyper": {"evm_version": "paris"}, "solidity": {"evm_version": "paris"}}'

Finally, you can also configure settings in Python code:

from pathlib import Path
from ape import compilers

settings = {"vyper": {"version": "0.3.7"}, "solidity": {"version": "0.8.0"}}
   ["path/to/contract.vy", "path/to/contract.sol"], settings=settings

# Or, more explicitly:
vyper = compilers.get_compiler("vyper", settings=settings["vyper"])

solidity = compilers.get_compiler("solidity", settings=settings["solidity"])

Compile Source Code

Instead of compiling project source files, you can compile code (str) directly:

from ape import accounts, compilers

CODE = """
   ... source code here

container = compilers.compile_source(
   settings={"vyper": {"version": "0.3.7"}}, 

owner = accounts.test_accounts[0]

instance = container.deploy(sender=owner)

Output Extra

Sometimes, there are extra output styles you may want. For example, to output minified ABI JSONs, use the following config:

     - ABI

Then, after compiling, you should notice minified ABI json files in your .build/abi folder. This is useful if hosting these files on a web-server.

To see the full list of supported output-extra, see the OutpuExtra enum documentation.