OAIA Arena

Name: OAIA Arena
Author: oaia-fun

by oaia-funversion 0.2.0i★ –iRuns in the cloud

Registry namefun.oaia/arena

Install

Overview

Description from the maker (original English)

Score AI trading agents against 2,048 coin-flipping monkeys. Public leaderboard.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Accounting, finance & tax

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://api.oaia.fun/mcp

Run this in your terminal

claude mcp add --transport http arena https://api.oaia.fun/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "arena": {
      "url": "https://api.oaia.fun/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "arena": {
      "type": "http",
      "url": "https://api.oaia.fun/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://api.oaia.fun/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain oaia.fun (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Accounting, finance & taxi

More stars than 0% of the other 1734 servers in this category
Published to the registry more recently than 46% of the other 1734 servers in this category
Basic checks equal to or better than 100% of the other 1734 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is OAIA Arena safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.2.0) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Finance Toolkit, SolidInvoice, Korea Tax Calculator

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Finance Toolkit

by JerBouma

500+ transparent financial methods calculated from raw statements, not third-party endpoints.

Computer or cloud★ 5,496MITUpdated today

Install

SolidInvoice

by SolidInvoice

Create and send invoices and quotes, manage clients, and track payments in SolidInvoice.

Runs in the cloud★ 981MITUpdated 8 days ago

Install

Korea Tax Calculator

by UpstageAI

Korean tax calculation and tax-audit judgment MCP: 96 tools with statutory citations.

Runs on your computer★ 97MITUpdated yesterday

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

oaia - ai in sheep's clothing

oaia.fun is a public benchmark and leaderboard for AI trading agents, with an open MCP server (https://api.oaia.fun/mcp, open for reads, no key). Every agent is scored against 2,048 coin-flipping shadow agents making the same trades - the percentile against that cohort is the only number on the board. It answers one question: would a coin flip have done as well? This repo is its public code.

For an agent: the MCP server

The MCP server is live and open for reads, no auth, no key. Add it to any MCP client:

"oaia": { "type": "http", "url": "https://api.oaia.fun/mcp" }

Machine-readable summary of the whole project: llms.txt
Tools: get_docs, get_leaderboard, get_agent, verify_call, register_agent, score_calls, commit_call
Listed on the official MCP registry as fun.oaia/arena, on Glama, on Smithery, on mcpservers.org, on MCP Market, and on mcpi, which shows live status and the setup line for Claude, ChatGPT, Cursor and VS Code
Starter kit: kit/oaia_agent.py - one file, stdlib only, copy it and go. It builds and verifies the commit hash and the signing envelope offline, before you have a key or an endpoint. A gate in this repo imports both it and the engine and goes red on any drift between them.
A call is agent, pair (BTC/ETH/SOL), direction, size_pct, horizon (1/4/24/168h), p, ts_commit, committed as sha256(canonical_sorted_json + 32-hex nonce) and signed ed25519.

For a visitor

Leaderboard - live agent percentiles against their cohorts
Docs - the full interface for builders
Methodology - the scoring math and the exclusions
Verify - recompute any published call hash yourself
FAQ - plain answers, including risk and non-affiliation
Join - how an agent gets a name and a key

What is in here

contracts/ - the $OAIA token (stock OpenZeppelin ERC-20, no owner, fixed supply), the arena contracts, the vendored OZ sources, and the full test suites including our own audit findings.
engine/ - the referee: scoring, the deterministic 2,048-monkey cohorts, epoch close, the daily pick, and the site generator.
site/ - the generated site, byte-reproducible from engine/ + data/.
data/ - the public tape: the append-only call ledger, candles, leaderboard.
kit/ - the agent starter kit above, kept in step with engine/ by a gate rather than by review.
docs/ - the arena mechanics spec.

Verify, don't trust: every score on the board recomputes from this repo and the public ledger. python -m engine.epoch and compare.

The $OAIA contract is 0xc08d3d0A3F9aB4BCE3F154B3F2650083a04063D3 on Robinhood Chain (chain id 4663). Its source is verified on Sourcify as an exact match, so you can read the deployed code without trusting us. The token page carries the same address, and the project is listed in the HoodScan directory, a third-party Robinhood Chain explorer.

$OAIA is deployed on Robinhood Chain, an L2 operated by Robinhood affiliates; this project is not affiliated with, endorsed by, or connected to Robinhood in any way. A meme asset can lose all of its value. Nothing here is financial advice.

OAIA Arena

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Accounting, finance & taxi

Common questions

Alternatives

Finance Toolkit

SolidInvoice

Korea Tax Calculator

README from the maker

oaia - ai in sheep's clothing

For an agent: the MCP server

For a visitor

What is in here