sp3nd SKILL.md skillA

sp3nd from starchild-ai-agent/official-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add starchild-ai-agent/official-skills/sp3nd@v1.0.1

Pins v1.0.1 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
starchild-ai-agent/official-skills
Path
sp3nd/SKILL.md
Versions recorded
3
Latest version
v1.0.1, committed May 21, 2026
First version recorded
May 6, 2026
Size
11,735 bytes
Repository stars
32
License
none declared

Buy Amazon and eBay products with USDC on Solana via SP3ND x402 payments. Use when paying for real-world goods with crypto (e.g. order this Amazon listing, buy eBay item, ship to Tokyo with USDC).

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

# SP3ND — Autonomous Amazon/eBay Shopping with USDC on Solana

SP3ND lets an AI agent buy real products from Amazon and eBay using USDC on Solana. No KYC, no accounts, 0% platform fee, free Prime shipping on eligible Amazon items.

**Full API docs:** https://sp3nd.shop/partner-api/docs
**SKILL.md:** https://sp3nd.shop/skill.md
**Base URL:** `https://us-central1-sp3nddotshop-prod.cloudfunctions.net`

---

## Prerequisites

- Solana wallet with USDC balance (mint: `EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v`)
- `solders` and `solana` Python packages (`pip install solders solana`)
- SP3ND API credentials in `.env` (obtained via Step 1 below)

---

## Step 1: Register Agent (one-time)

Self-registration — no approval queue. Credentials are shown once; save immediately.

```python
import urllib.request, json

BASE_URL = "https://us-central1-sp3nddotshop-prod.cloudfunctions.net"
wallet_pubkey = "<your Solana wallet pubkey>"

payload = json.dumps({
    "agent_name": "My Agent",
    "solana_public_key": wallet_pubkey,
    "contact_email": "you@example.com",
    "description": "Autonomous shopping agent"
}).encode()

req = urllib.request.Request(
    f"{BASE_URL}/registerAgent",
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add starchild-ai-agent/official-skills/sp3nd@sha256:38e33fc9f5002495

The line at the top of this page pins the label v1.0.1, 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_uhx5l2qgn4dl2gdg.svg)](https://markdownregistry.com/a/art_uhx5l2qgn4dl2gdg)

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

Versions

The registry has recorded 3 versions of this file, between May 6, 2026 and May 21, 2026, about one every 8 days.

versioncommittedcommitsizeaudit
v1.0.1 latest2026-05-21 868b4d4 11,735 BA view · diff
v1.0.02026-05-06 9adf8da 11,725 BA view · diff
v1.0.02026-05-06 d2df0eb 11,784 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (11735 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

starchild-ai-agent/official-skills · 32 stars · license none declared · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_uhx5l2qgn4dl2gdg
GET https://markdownregistry.com/api/v1/resolve?ref=starchild-ai-agent/official-skills/sp3nd
GET https://markdownregistry.com/api/v1/blob/38e33fc9f5002495953ca377ac78192800f42504a7911c8f70f044b73219b039

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: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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