Developer Corner

A text-steganography tool encodes a secret message into generated text, then offers a decoder to recover it with the same key.

A tool for comparing how changes to a coding assistant’s instructions affect the same saved coding tasks.

An RDF database and SPARQL engine that stores its data in SQLite, with interfaces for Rust, Node.js, and the command line.

Perfuse presents an open-source integration engine for healthcare data formats including HL7 v2, FHIR, DICOM, X12, and CDA.

Four open-source command-line tools lint, mock, test, and render n8n workflow JSON.

A custom development service building focused web apps that connect to an existing Odoo installation through its API.

A research project formalizing mathematical logic in the Lean theorem prover, with repositories, a results catalogue, publications, and talks.

Diffle presents a browser-based workflow for reviewing local Git comparisons, attaching comments to code, and returning structured feedback to coding agents.

An open-source CLI for writing signed, hash-bound records of tool use, with evidence another agent can inspect.

A free, open-source SDR console for operating OpenHPSDR radios on macOS, Windows, and Linux.

Velo is presented as an on-premise tool for detecting and transforming personal information in clinical notes, PDFs, images, and audio before data reaches a cloud LLM.

A browser-emulated Game Boy interface for preparing Solana token launches, with a downloadable ROM and a prototype USB bridge for physical hardware.

A Mac-hosted tool for texting Claude Code and Codex from a phone, with a shared memory layer.

A web-scraping API that returns public pages as HTML, text, or Markdown, with structured JSON endpoints for selected sites.

A Mac app that runs coding agents in a notch-based terminal and lets you monitor their work and approve commands there.

An open-source toolkit that routes submitted coding tasks to installed AI command-line tools, with optional parallel perspectives from multiple models.

A REST API for CrossFit competition results, athlete careers, workouts, divisions and affiliate gyms.

A macOS utility for capturing screenshots, annotated screen recordings, and dictation for coding agents.

Paste a CVE ID to see its CVSS severity, EPSS exploitation estimate, and status in CISA’s Known Exploited Vulnerabilities catalog.

A free API stores decks, cards, and review schedules so people can practice in a chat with an AI agent.

Mantle says it tracks third-party API changes, updates affected code, runs a repository’s checks, and opens a pull request for review.

GRO-NASS describes a tool that checks proposed AI changes against tests before they are accepted, and records the results.

Kleo is a desktop workbench for signing, verifying, encrypting, messaging and paying through human-readable BitNames.

LOC pairs rugged NFC tags with a cloud platform for documenting fiber and telecom network builds.

Lenscheck presents a Python tool that compares pull requests for behavior changes, tracing routes, data flows, authentication, database activity, and external calls.

Sunsetwise presents a tool for turning cloud and API deprecation notices into upgrade investigations and plans.

A correctness layer for tokenised-equity oracles that pairs prices with provenance and risk flags, and refuses reads by default when a guard trips.

An open-source tool that selects a model and reasoning effort for each new Claude Code or Codex conversation.

An open specification and beta contributor app for recording animal vocalizations alongside what happened immediately before and after.

Claycut offers free 3D clay-style icons and advertises custom icon generation from an editor, CLI, or browser.

A Japanese-language tool for checking DNS, email security, RDAP, HTTP/TLS, and detectable website technologies, with observations saved for later comparison.

A Zürich project program offers selected technical teams compute support, preparation, and a March 2027 sprint, with a large prize advertised for the best project.

Memo coordinates Claude Code and Codex sessions through a shared work map, saved instructions, and approval rules for actions like production deploys.

A documented tool for running untrusted code in isolated Podman or Docker containers, with a CLI and TypeScript interface.

A searchable catalog of shadcn registry items, with live browser previews and installation commands for adding components to a project.

Sifty classifies text against labels you choose, through a live demo or a simple HTTP API.

A research demo for running live web searches and examining search-agent traces, evidence memory, and behavior diagnostics.

A monitoring service watches scheduled jobs, backups, feeds, pages, and JSON data for missed runs or stale updates.

The Bengaluru pilot presents an API for agents to send real-world tasks to nearby people, who complete them and return proof.

Captain Relay describes a relay for giving AI assistants scoped access to enrolled computers, with device policies, human approvals and persistent jobs.

A solo developer’s site for offline-first apps, including an on-device transcription app and an offline word-guessing game.

Product documentation for a TR-069 ACS that brings optical modem management, PON/OLT provisioning, and field-service workflows into one platform.

An offerwall for reward sites, task platforms, apps, and Telegram bots: users complete advertiser tasks in exchange for the publisher’s own points or balance.

TokenPolice meters AI calls inside an app and lets teams set rules to block, reroute, or flag spending before a request reaches a provider.

A preview for six semantic shell utilities that score code, text, and logs against a question written in plain language.

Nano-API presents HTTP endpoints for job heartbeats, scheduled calls, distributed locks, versioned configuration, and counters.

ODIN is an open-source, French-language server for accessing knowledge on a local network without an internet connection.

Carbonland presents a carbon-removal measurement and registry platform, with site readings, verification, issuance, and retirement linked in a public record.

A UTEP engineering project says it turns existing lot-camera footage into a live map of open and occupied parking bays.

The site describes a Zurich event where communities propose scoped features and invited teams work on them in public.

Vizitka describes a website platform where a coding agent can build pages, while the owner previews, publishes, and manages the site from a dashboard.

An API for receiving email OTPs and magic links in signup automation and end-to-end tests.

An open-source Docker tool that says it connects media requests, indexers, debrid providers, and media servers in one automated pipeline.

A coming-soon API proposes to normalize public social and web data from dozens of platforms into fourteen canonical shapes.

An initiative to standardize how software and hardware vendors and open-source maintainers exchange end-of-life and end-of-support information.