$ pip install apertium-apy

$ wget -qO- https://apertium.projectjj.com/apt/install-nightly.sh | bash
$ apt-get install apertium-apy

$ docker pull apertium/apy

$ apertium-apy --help

usage: apertium-apy [-h] [-s NONPAIRS_PATH] [-l LANG_NAMES] [-f MISSING_FREQS]
                [-p PORT] [-c SSL_CERT] [-k SSL_KEY] [-t TIMEOUT]
                [-j [NUM_PROCESSES]] [-d] [-P LOG_PATH]
                [-i MAX_PIPES_PER_PAIR] [-n MIN_PIPES_PER_PAIR]
                [-u MAX_USERS_PER_PIPE] [-m MAX_IDLE_SECS]
                [-r RESTART_PIPE_AFTER] [-v VERBOSITY] [-V] [-S]
                [-M UNKNOWN_MEMORY_LIMIT] [-T STAT_PERIOD_MAX_AGE]
                [-wp WIKI_PASSWORD] [-wu WIKI_USERNAME] [-b]
                [-rs RECAPTCHA_SECRET] [-md MAX_DOC_PIPES] [-C CONFIG]
                [-ak API_KEYS_FILE]
                pairs_path

Apertium APY -- API server for machine translation and language analysis

positional arguments:
pairs_path            path to Apertium installed pairs (all modes files in
                        this path are included)

optional arguments:
-h, --help            show this help message and exit
-s NONPAIRS_PATH, --nonpairs-path NONPAIRS_PATH
                        path to Apertium tree (only non-translator debug modes
                        are included from this path)
-l LANG_NAMES, --lang-names LANG_NAMES
                        path to localised language names sqlite database
                        (default = langNames.db)
-f MISSING_FREQS, --missing-freqs MISSING_FREQS
                        path to missing word frequency sqlite database
                        (default = None)
-p PORT, --port PORT  port to run server on (default = 2737)
-c SSL_CERT, --ssl-cert SSL_CERT
                        path to SSL Certificate
-k SSL_KEY, --ssl-key SSL_KEY
                        path to SSL Key File
-t TIMEOUT, --timeout TIMEOUT
                        timeout for requests (default = 10)
-j [NUM_PROCESSES], --num-processes [NUM_PROCESSES]
                        number of processes to run (default = 1; use 0 to run
                        one http server per core, where each http server runs
                        all available language pairs)
-d, --daemon          daemon mode: redirects stdout and stderr to files
                        apertium-apy.log and apertium-apy.err; use with --log-
                        path
-P LOG_PATH, --log-path LOG_PATH
                        path to log output files to in daemon mode; defaults
                        to local directory
-i MAX_PIPES_PER_PAIR, --max-pipes-per-pair MAX_PIPES_PER_PAIR
                        how many pipelines we can spin up per language pair
                        (default = 1)
-n MIN_PIPES_PER_PAIR, --min-pipes-per-pair MIN_PIPES_PER_PAIR
                        when shutting down pipelines, keep at least this many
                        open per language pair (default = 0)
-u MAX_USERS_PER_PIPE, --max-users-per-pipe MAX_USERS_PER_PIPE
                        how many concurrent requests per pipeline before we
                        consider spinning up a new one (default = 5)
-m MAX_IDLE_SECS, --max-idle-secs MAX_IDLE_SECS
                        if specified, shut down pipelines that have not been
                        used in this many seconds
-r RESTART_PIPE_AFTER, --restart-pipe-after RESTART_PIPE_AFTER
                        restart a pipeline if it has had this many requests
                        (default = 1000)
-v VERBOSITY, --verbosity VERBOSITY
                        logging verbosity
-V, --version         show APY version
-S, --scalemt-logs    generates ScaleMT-like logs; use with --log-path;
                        disables
-M UNKNOWN_MEMORY_LIMIT, --unknown-memory-limit UNKNOWN_MEMORY_LIMIT
                        keeps unknown words in memory until a limit is
                        reached; use with --missing-freqs (default = 1000)
-T STAT_PERIOD_MAX_AGE, --stat-period-max-age STAT_PERIOD_MAX_AGE
                        How many seconds back to keep track request timing
                        stats (default = 3600)
-wp WIKI_PASSWORD, --wiki-password WIKI_PASSWORD
                        Apertium Wiki account password for SuggestionHandler
-wu WIKI_USERNAME, --wiki-username WIKI_USERNAME
                        Apertium Wiki account username for SuggestionHandler
-b, --bypass-token    ReCAPTCHA bypass token
-rs RECAPTCHA_SECRET, --recaptcha-secret RECAPTCHA_SECRET
                        ReCAPTCHA secret for suggestion validation
-md MAX_DOC_PIPES, --max-doc-pipes MAX_DOC_PIPES
                        how many concurrent document translation pipelines we
                        allow (default = 3)
-C CONFIG, --config CONFIG
                        Configuration file to load options from
-ak, --api-keys         JSON file where API keys are stored. Comments are allowed