Perplexity Releases pplx, a Single-Binary CLI That Puts Its Search API in the Terminal for Coding Agents

Perplexity has released pplx , an official command line client for its Search API. The tool returns grounded search results and extracted page text, all as JSON. According to its docs, it targets humans and coding agents equally. It is not a chat client. There is no conversational mode, no model selection and no synthesized answer.

The tool exposes exactly two working surfaces. pplx search web runs a live web search. pplx content fetch pulls a URL and returns cleaned page text.

The contract around them is the interesting part. Per the official pplx-cli Agent Skill , success means exit code 0 and exactly one JSON object on stdout. Search returns {hits: [{url, title, domain, snippet, ...}], total, saved_to?} .

Every failure exits 1 with an empty stdout. One JSON error object goes to stderr, shaped {"error":{"code","message","command","hint"?}} . Documented codes include AUTHENTICATION , UNKNOWN_ARGUMENT , ARGUMENT_ERROR and BAD_REQUEST . The skill notes that list is not exhaustive, so callers should branch on error.code .

Installation is a single shell command that pipes a script into sh :

Reading install.sh shows what it actually does. It downloads manifest.json from the latest release and extracts the tag and version. It then pins every remaining download to that tag, explicitly to avoid racing a concurrent publish.

It fetches SHA256SUMS and the platform binary, verifies the checksum, and installs to ~/.local/bin/pplx . No sudo is required. A receipt is written to ~/.config/pplx/pplx-receipt.json , but only after the installed binary runs successfully.

Platform coverage is limited to three targets: macOS on Apple Silicon, Linux x86_64 and Linux arm64. Anything else exits with an error. There is no Windows build and no Intel macOS build.

The most agent-specific feature is token budgeting. --output-dir writes the full result set to a JSON file. --stdout-preview[=] truncates long string fields in stdout, adding ... markers.

The skill is blunt about the trap: --stdout-preview is a no-op without a save directory. It truncates only when the result is also saved via --output-dir or $PPLX_OUTPUT_DIR . Used alone it returns full-size output, and hits can be multiple KB each.

Saved search results land at {dir}/web/{rand}.json and fetches at {dir}/fetch/{rand}.json . Files are written only after a successful request. PPLX_OUTPUT_DIR sets a workspace default so the flag need not be repeated.