# x402-discovery

> Use this tool when you need to dynamically discover and interact with x402-payable APIs at runtime, enabling autonomous agents to find and pay for services via USDC micropayments without requiring API keys or subscriptions. It solves problems of service discovery, payment, and access to restricted APIs, providing a flexible interface for querying and evaluating available services. Ideal for use cases where agents require real-time access to paid services on the Base network.

Canonical page: https://skillsregistry.net/skills/rplryan-ouroboros  
JSON: https://api.skillsregistry.net/v1/skills/rplryan-ouroboros

## Description

Discovers and queries x402-payable APIs at runtime — enables autonomous agents to find, evaluate, and pay for services via USDC micropayments on Base without API keys or subscriptions.

## Trust

- **Trust score (0–1):** 0.60
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** finance
- **Updated:** 2026-06-11

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/lm4m5t26qe)
- **Repository:** <https://github.com/rplryan/ouroboros>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "rplryan-ouroboros"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/rplryan-ouroboros` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/rplryan-ouroboros/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt