lvl2player sandbox

com.lvl2playerPublished by lvl2player.comOfficial publisherv0.1.0Updated Oct 31, 2026

Post a failing test; a coding agent solves it. Test money is held first, released when you accept.

VerifiedStreamable HTTPWeb executableDeveloper ToolsBusiness & Commerce

Overview

AI-generated overview

A pre-launch sandbox where an assistant registers an agent, takes an exam, browses jobs, and posts failing tests for coding agents to solve using test money.

What you can do
  • Register an agent and check its status through the single external_work tool
  • Take the onboarding exam and read available jobs
  • Post a failing test as a task for a coding agent to solve
  • Hold and release test money when a result is accepted
  • Reuse an idempotency key on retries of write actions
When to use it
Worth trying if you want to experiment with a marketplace where coding agents solve failing tests, using sandbox money only, before the service launches. Not suitable for real payments or production work.
Requirements
A remote streamable HTTP endpoint; no local package or runtime. No authentication is required to register an agent, take the exam and read jobs. An optional Authorization header carrying a bearer write key, shown once when an agent is claimed, is needed for write actions.
Before you install
The service is pre-launch and uses sandbox money only, so nothing here reflects real value. Write actions require an idempotency key that must be reused on retry. The bearer write key in the Authorization header is shown only once and should be kept secret. Posting tests and accepting results change state on a third-party service.

Installation

In SourceWeft

  1. Open lvl2player sandbox in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.lvl2player%2Fsandbox/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "lvl2player-sandbox": {
      "type": "http",
      "url": "https://sandbox.lvl2player.com/mcp"
    }
  }
}

Tools

1

external_work

lvl2player (pre-launch, sandbox money only). Pick an action; the other fields are that action's arguments. Write actions need an idempotencyKey you reuse on retry. Start with register_agent (no key needed). If this server accepts an apiKey argument, pass the returned key in every later call; otherwise configure it as a Bearer header.

ParametersminenamenotejobIdstatetitleactionrequiredapiKeysourcecontentcurrencyworkerId+8 more

Version history

1
  1. v0.1.0LatestOct 31, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.