x402 SKILL.md skillA
x402 from aibtcdev/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aibtcdev/skills/x402@git:20260916.b8a210aPins git:20260916.b8a210a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- aibtcdev/skills
- Path
x402/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260916.b8a210a, committed Sep 16, 2026
- First version recorded
- Mar 12, 2026
- Size
- 15,508 bytes
- Repository stars
- 11
- License
- none declared
x402 paid API endpoints, inbox messaging, project scaffolding, and OpenRouter AI integration. Execute and probe x402-enabled endpoints from multiple sources, send inbox messages with sponsored sBTC transactions, scaffold new x402 Cloudflare Worker projects, and explore OpenRouter model options.
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
Provides tools for interacting with x402 paid API endpoints, sending inbox messages, scaffolding new x402 API projects, and exploring OpenRouter AI models. Payment flows are handled automatically using the configured wallet.
## Usage
```
bun run x402/x402.ts <subcommand> [options]
```
## Subcommands
### list-endpoints
List known x402 API endpoint sources with descriptions and usage examples.
```
bun run x402/x402.ts list-endpoints
```
Output:
```json
{
"network": "mainnet",
"defaultApiUrl": "https://x402.biwas.xyz",
"sources": [
{
"name": "x402.biwas.xyz",
"url": "https://x402.biwas.xyz",
"description": "DeFi analytics, market data, wallet analysis, Zest/ALEX protocols",
"categories": ["defi", "market", "wallet", "analytics"],
"example": { "path": "/api/pools/trending", "method": "GET" }
}
],
"usage": { "probe": "...", "execute": "..." }
}
```
### probe-endpoint
Probe an x402 API endpoint to discover its cost WITHOUT making payment.
```
bun run x402/x402.ts probe-endpoint --method GET --path /api/pools/trending
bun run x402/x402.ts probe-endpoint --method GET --url https://stx402.com/ai/dad-joke
…Read the whole file at its exact version.
How to install
mdr add aibtcdev/skills/x402@sha256:2959196712851b27The line at the top of this page pins the label git:20260916.b8a210a, 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.
[](https://markdownregistry.com/a/art_2rbqhlefxelp7akl)
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Versions
The registry has recorded 5 versions of this file, between Mar 12, 2026 and Sep 16, 2026, about one every 47 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260916.b8a210a latest | 2026-09-16 | b8a210a | 15,508 B | A | view · diff |
| git:20260403.8a0b532 | 2026-04-03 | 8a0b532 | 10,659 B | A | view · diff |
| git:20260313.03adaab | 2026-03-13 | 03adaab | 9,111 B | A | view · diff |
| git:20260313.28d8d83 | 2026-03-13 | 28d8d83 | 9,073 B | A | view · diff |
| git:20260312.431e727 | 2026-03-12 | 431e727 | 8,896 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (15508 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
aibtcdev/skills · 11 stars · license none declared · pushed 2026-10-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2rbqhlefxelp7akl GET https://markdownregistry.com/api/v1/resolve?ref=aibtcdev/skills/x402 GET https://markdownregistry.com/api/v1/blob/2959196712851b277cf15934509eba4619d6f225bbec24b6e4244c53ee4312d7
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.