Apiffuf by Jsmon
API URL fuzzer for API hackers
What it does
API URL fuzzer that cross-joins hosts and paths into normalized URLs, probes them over HTTP, and reports responding endpoints. - jsmonhq/apiffuf
Does a similar job
all alternatives →- OFOpenAPI fuzzer – fuzzing APIs based on OpenAPI specification2021 · github.com · ▲76
- AHApifier – hosted web crawler for developers2015 · apifier.com · ▲101
- UJuFuzzy.js – A tiny, efficient fuzzy search that doesn't suck2022 · github.com · ▲251
Hello HN! I became frustrated with the unpredictible/poor match quality and opaqueness of "relevance scores" in existing fuzzy and fulltext search libs, so I tried something different and this is the result. The main selling point is the result quality / ordering, with best-in-class memory overhead and excellent performance being bonuses. The API is pretty stable at this point, but looking for feedback before committing to 1.0. TL;DR The test corpus is a 4MB json file with 162k words/phrases, so give it a second for initial download. You can also drag/drop your own…
- PAPfuzz, a web fuzzer following the Unix philosophy2024 · github.com · ▲93
I recently dipped my toes into bug bounty hunting and finding security flaws in web applications. As a friend of UNIX shells I was building a repertoire of command line tools to make and analyze HTTP requests. Fortunately there are already many suitable tools like curl, jq, different fuzzers and some really nice tools for specific tasks by Tom Hudson [1]. However, I disliked that the existing fuzzers were monoliths where I had no easy way of creating custom behavior or analyses. They commonly do a multitude of things: Create multiple requests using one or more wordlist, sending the request,…


More dev tools this month
the category →



OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 3d ago · opentrailpaper.com

Lettertrace▲375Track your AI visibility for free (using your own API keys!)
Dev tools · 26d ago · lettertrace.com
Launched alongside, May 2026
the whole month →

Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai


- NW
Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com
- FM
Dev tools · May 2026 · github.com