Self-hosted proof-of-work CAPTCHA. Privacy-first reCAPTCHA alternative with zero tracking.
PoW-skip payment provider for paymcp — free-tier alternative to Lightning via PowForge captcha
Replace MCP 429 errors with PoW challenges or Lightning micropayments. Drop-in rate control for MCP servers — no accounts, free fallback, self-hosted. Three tools: challenge, verify, status. Stdio + HTTP transports, stdlib only.
TypeScript definitions for netease-captcha
JavaScript library for easy integration with the API of 2captcha captcha solving service to bypass reCAPTCHA, funcaptcha, geetest and solve any other captchas.
JavaScript library for easy integration with the API of 2captcha captcha solving service to bypass reCAPTCHA, hCaptcha, funcaptcha, geetest and solve any other captchas.
generate svg captcha in node.js or express.js
Dynamic captcha (Google reCaptcha) implementation for Angular
A very simple,powerful and highly customizable captcha for ReactJS
Yandex Smart Captcha react component
In-browser SDK for Friendly Captcha v2
Serverside client SDK for the Friendly Captcha V2 API
Captcha verifier for NodeJS
Official Anti-Captcha.com npm library
DoI-weighted community voting for Nostr. Every vote is weighted by the voter's depth-of-identity score, so a sock puppet farm with 1000 fresh accounts cannot outvote one real long-tenured identity. Sybil-resistant polling with no central registry.
A captcha generator by using skia-canvas module.
GoCaptcha for Vue, which implements click mode, slider mode, drag-drop mode and rotation mode.
Depth-of-Identity SDK for Nostr. Measures accumulated irreversible work across four dimensions of irreversible work (social, access, vouch, economic). Try it live at powforge.dev/explorer.
The self-hosted CAPTCHA for the modern web.
DoI-weighted news credibility on Nostr. A story endorsed by 5 long-tenured humans outranks one flooded by 500 fresh bot accounts. Sybil-resistant news ranking with no central registry.
L402 Lightning paywall + Depth-of-Identity score gate for MCP. Two integration shapes: (a) stdio MCP server exposing l402_gate_challenge / l402_gate_verify / l402_gate_score for agent clients; (b) drop-in Express middleware + MCP tool factory that combine
Server-side challenge generator and verifier for Cap, a lightweight, modern open-source CAPTCHA alternative designed using SHA-256 PoW.
CAPTCHA abstraction library supporting multiple providers
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