Search results

Fit portfolio models and evaluate them on later market data

A proxy-based API simulator that records traffic for repeatable tests without calling the real service each time.

Trace LLM and agent runs, then monitor production quality, latency, errors, and cost in dashboards.

A browser playground for editing HTML, CSS, and JavaScript, then previewing and embedding the result.

Call Claude models through a REST API, official SDKs, and asynchronous batch endpoints.

Run a Bitcoin Lightning node on an Android or iOS phone

Explore traces and wide events from instrumented applications to investigate production behavior.

A local-first knowledge notebook that combines text, handwriting, boards, and linked notes.

Compile systems software with a general-purpose language built around explicit control and cross-compilation.

Format and lint web-project files with a shared command-line toolchain.

Define subscription terms, invoice schedules and payment routing

Connect applications to financial account, identity, payment, and transaction data through Plaid endpoints.

Define API load scenarios and Playwright end-to-end runs, then analyze their reports in Artillery Cloud.

Use hosted PostgreSQL with branch-based development and connection options for applications.

Test your own web application with end-to-end, component, and API test workflows.

Read, update, and append spreadsheet cell values from an application.

Write API, UI, performance, and mock tests in readable feature files using one test framework.

Add interactive choices, prompts, and terminal styling to shell scripts without writing Go code.

An embeddable persistent key-value store for applications that need fast local storage.

A TAP-compliant test framework for checking Bash scripts and command-line programs.

Test Kotlin behavior with specification styles, assertions, and property-based checks.

A native terminal emulator for macOS and Linux, with text-file configuration and an embeddable terminal library.

Use a small Java SQL database in embedded, in-memory, or client/server mode through JDBC.

A Java code-coverage library that records which instructions, lines, and branches run during tests.