# Check Registration

> A Claude skill from uptopia-team/legend-of-base-agent-skills.

- **Type:** Skill
- **Install:** `agentstack add skill-uptopia-team-legend-of-base-agent-skills-check-registration`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [uptopia-team](https://agentstack.voostack.com/s/uptopia-team)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [uptopia-team](https://github.com/uptopia-team)
- **Source:** https://github.com/uptopia-team/legend-of-base-agent-skills/tree/main/skills/check-registration
- **Website:** https://legend.uptopia.xyz

## Install

```sh
agentstack add skill-uptopia-team-legend-of-base-agent-skills-check-registration
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# check-registration

Check whether the agent's wallet is already registered in the game.

## Proxy API

- **Method:** `GET`
- **URL:** `https://agent-public-api.uptopia.xyz/apps/{appId}/agent/energy`
- **Auth:** JWT (Bearer token)
- **Payment (x402):** No

## Parameters

| Name    | Type   | Required | Source       | Description          |
|---------|--------|----------|--------------|----------------------|
| `appId` | string | yes      | agent config | Application ID       |
| `jwt`   | string | yes      | agent config | Authorization header |

## Headers

```
Authorization: Bearer 
```

## Interpreting the Result

| HTTP Status | Meaning | Next Step |
|-------------|---------|-----------|
| `200 OK` | Wallet is registered | Skip `register-agent`, proceed to `get-mines` |
| `401` | JWT invalid or expired | Re-run `auth-login` |
| `404` | Wallet is NOT registered | Call `register-agent` |

## Usage Notes

- Requires JWT authentication.
- A `404` response is not an error in this context — it simply means the agent needs to register.
- Always call this before `register-agent` to avoid paying for a duplicate registration.
- Use in the play workflow to automatically determine whether registration is needed.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [uptopia-team](https://github.com/uptopia-team)
- **Source:** [uptopia-team/legend-of-base-agent-skills](https://github.com/uptopia-team/legend-of-base-agent-skills)
- **License:** MIT
- **Homepage:** https://legend.uptopia.xyz

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-uptopia-team-legend-of-base-agent-skills-check-registration
- Seller: https://agentstack.voostack.com/s/uptopia-team
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.