Home / nirholas / x402-skill-registry · GitHub

llms.txtA

llms.txt from nirholas/x402-skill-registry is an llms.txt file: plain text a project publishes for AI models to read.

Install it, pinned
mdr add nirholas/x402-skill-registry/llms.txt@git:20261010.91dbef8

Pins git:20261010.91dbef8 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 14 of 14 checks passed
Kind
llms.txt file
Repository
nirholas/x402-skill-registry
Path
llms.txt
Versions recorded
1
Latest version
git:20261010.91dbef8, committed Oct 10, 2026
Size
1,962 bytes
Repository stars
8
License
Apache-2.0

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# x402-skill-registry

> Searchable registry of x402-paid agent skills: register with a signed listing, agents search per query. Every listing accepts USDC on both Base and Solana.

x402-skill-registry is an open-source repository by nirholas, part of the three.ws ecosystem.

## Docs

- [README](https://github.com/nirholas/x402-skill-registry/blob/HEAD/README.md): install, usage and reference
- [What you get](https://github.com/nirholas/x402-skill-registry/blob/HEAD/README.md#what-you-get)
- [The one rule](https://github.com/nirholas/x402-skill-registry/blob/HEAD/README.md#the-one-rule)
- [Why the index is free and search is not](https://github.com/nirholas/x402-skill-registry/blob/HEAD/README.md#why-the-index-is-free-and-search-is-not)
- [Why x402 for this](https://github.com/nirholas/x402-skill-registry/blob/HEAD/README.md#why-x402-for-this)
- [Quickstart](https://github.com/nirholas/x402-skill-registry/blob/HEAD/README.md#quickstart)
- [Human checkout demo](https://github.com/nirholas/x402-skill-registry/blob/HEAD/README.md#human-checkout-demo)
- [How x402 works here](https://github.com/nirholas/x402-skill-registry/blob/HEAD/README.md#how-x402-works-here)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add nirholas/x402-skill-registry/llms.txt@sha256:caa9c3448987adb3

The line at the top of this page pins the label git:20261010.91dbef8, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_5om346nkibyadds3.svg)](https://markdownregistry.com/a/art_5om346nkibyadds3)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 10, 2026.

versioncommittedcommitsizeaudit
git:20261010.91dbef8 latest2026-10-10 91dbef8 1,962 BA view

Audit of the latest version

A  14 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Size between 200 bytes and 200 KB (1962 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

nirholas/x402-skill-registry · 8 stars · license Apache-2.0 · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_5om346nkibyadds3
GET https://markdownregistry.com/api/v1/resolve?ref=nirholas/x402-skill-registry/llms.txt
GET https://markdownregistry.com/api/v1/blob/caa9c3448987adb3a59403b1652c664ea8c132864958328375d081c2beb58760

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: how to add an llms.txt file to a website · which agent file does what.

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