Directory

Password and secrets manager for individuals, families and businesses with end-to-end encrypted vaults, passkeys, an SSH agent and a developer CLI

Anthropic's agentic coding tool that reads a codebase, edits files and runs commands from the terminal, IDEs, a desktop app, the web and CI, with MCP, hooks, skills and subagents

Anthropic's developer platform for the Claude models: Messages API, tool use, structured outputs, prompt caching, batch processing and Managed Agents, plus cloud availability

Browser-based collaborative interface design platform with vector editing, components, prototyping, FigJam whiteboards, Dev Mode and a plugin and REST API

Vendor of historical intraday market data (1-minute to daily bars, tick and options) for US stocks, ETFs, futures, indices, crypto and FX, delivered as zipped CSV bundles under a perpetual licence

Free economic database from the St. Louis Fed aggregating hundreds of thousands of US and international time series, with graphs, vintages (ALFRED), an Excel add-in and a keyed JSON/XML API

Microsoft-owned code hosting platform for Git repositories with pull requests, issues, Actions CI/CD, package registry, Copilot and the largest open-source community

Programmatic trading and market-data access to Interactive Brokers accounts through the TWS API, the REST-based Web API and FIX

Proprietary desktop app for discovering, downloading and running local LLMs with llama.cpp and MLX engines, a chat UI, an OpenAI-compatible server, CLI, SDKs and a headless daemon

Hosted workspace combining block-based documents, relational databases, wikis and project views, with an API and built-in AI features

Local-first Markdown note-taking app with bidirectional links, graph view and a large community plugin ecosystem; optional paid Sync and Publish

OpenAI's hosted developer platform: Responses and Chat Completions APIs, Realtime voice, embeddings, images, audio, fine-tuning, evals and managed agents

Québec's municipal property assessment rolls: per-unit values and building attributes published by municipalities and as open data by the MAMH

Gordian's construction cost database of unit prices, assemblies and square-foot models with location factors, sold online and in annual books

The SEC's free public filing system: company and full-text search, bulk index and feed archives, and data.sec.gov JSON APIs for submissions and XBRL financial facts, subject to a fair-access rate policy

Channel-based team messaging platform from Salesforce with threads, huddles, canvases, workflow automation and an extensive bot and app API

Canada's national statistical agency publishing census, economic and social data tables with open licensing and programmatic access via Web Data Service

Web search, extraction, crawling and research API designed for LLM agents, returning concise source content with SDKs, framework integrations and a hosted MCP server

Institution-subscribed research data platform from Wharton hosting CRSP, Compustat, TAQ, OptionMetrics and dozens of other vendors' databases with web queries, SQL, SAS, Python and R access