Home / runxhq / runx · skills/x402-pay/SKILL.md · GitHub

x402-pay skillA

x402-pay is agent-read markdown (skill) from runxhq/runx: Pay one x402 challenge through Runx Hosted with approval and paid-resource readback..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

What the file says

# X402 Pay

`x402-pay` is the public x402 buyer contract. `settle` submits the exact payment
signal once, and `readback` performs one observation of that durable payment and
resource. The default `pay` runner composes both and requires immediate terminal
readback, while durable callers compose `settle` once and re-enter `readback`
through Runx's external-job scheduler.

Runx Hosted owns challenge validation, authority attenuation and reservation,
wallet or facilitator credentials, payload signing, settlement recovery,
finality, and the private ledger. The connector never sleeps or polls; durable
continuation cadence belongs to Runx scheduling. OSS contains the public
v1 Runx contract and generic provider-effect gate only. References to x402
protocol version 2 in upstream conformance material describe the external
standard, not a Runx v2 contract.

## Operator guide

Use this skill for one exact HTTPS resource already named by a hosted x402 grant.
The resource request carries bounded inline control data or artifact references;
large documents and media never travel as oversized graph values. The hosted
…

Read the whole file at its exact version.

How to install

Latest version
mdr add runxhq/runx/x402-pay@git:20260828.84d6146
Exact content
mdr add runxhq/runx/x402-pay@sha256:8fa61bfd7235e186

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_dgahu6xng4k2xgb7.svg)](https://markdownregistry.com/a/art_dgahu6xng4k2xgb7)

1 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
git:20260828.84d6146 latest2026-08-28 84d6146 1,835 BA view · diff
git:20260824.c6b90352026-08-24 c6b9035 1,648 BA view · diff
git:20260822.a6dcd1e2026-08-22 a6dcd1e 1,310 BA view · diff
git:20260808.8b7af2a2026-08-08 8b7af2a 4,322 BA view · diff
git:20260725.47080ce2026-07-25 47080ce 4,449 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (1835 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

runxhq/runx · 93 stars · license Apache-2.0 · pushed 2026-09-24 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_dgahu6xng4k2xgb7
GET https://markdownregistry.com/api/v1/resolve?ref=runxhq/runx/x402-pay
GET https://markdownregistry.com/api/v1/blob/8fa61bfd7235e1860f3410a40fe56d60e5b22e68cb782aa015b579092d7a3ef2

Your agent 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.

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