OddsRail

Quick answers

What does it cost?

The reviewed docs do not state a complete subscription or trading-fee schedule.[1][2][3]

Does it trade for me?

Only in a configured live mode: the local server or separately authorized hosted quoting pilot; the remote MCP connector is paper-only.[1][2][3]

Where do my funds sit?

Local keys stay on the configured computer; the paper route has no wallet key, while the live pilot uses a session key.[1][2][3]

What do I need to start?

An MCP client for research/paper use; local live use also needs an existing funded and approved venue account and a signer.[1][2][3]

Where is it available?

Local software and a remote paper connector are documented; hosted live quoting is a limited per-wallet pilot.[1][2][3]

Overview

Trading mode

Local live orders require deliberate configuration and approval. Hosted MCP is paper-only; a separate per-wallet pilot supports live two-sided quoting. Saved strategy briefs do not keep every advertised strategy running in the background.[1]

Funding and prerequisites

For local live trading, a compatible funded Polymarket account, trading approvals, a local signer and an MCP client are required. Python setup needs version 3.11 or newer. The hosted paper route uses OAuth and no wallet key.[1]

What it offers

• Market research tools

  Read market details, order books, history and resolution criteria through the documented MCP interface.[1][2][3]

• Order-cost review

  Use quote_cost to inspect depth and check_order to review an intended order; the docs say the check must be requested explicitly.[1][2][3]

• Local signed execution

  Configure an existing Polymarket signer locally and deliberately leave paper mode before any real order is submitted.[1][2][3]

• Hosted paper connector

  Connect a remote MCP client to a simulated ledger; this route does not receive wallet keys or send real orders.[1][2][3]

• Limited hosted quoting

  An enabled pilot wallet can authorize a session key for post-only quotes on both sides of one market; this is separate from hosted paper trading.[1][2][3]

How it works

Trading mode

Local live orders require deliberate configuration and approval. Hosted MCP is paper-only; a separate per-wallet pilot supports live two-sided quoting. Saved strategy briefs do not keep every advertised strategy running in the background.[1]

Delivery channels

Local MCP over stdio, Hosted MCP over HTTP/OAuth, Web

Markets supported

Polymarket

Getting started

What you need first

For local live trading, a compatible funded Polymarket account, trading approvals, a local signer and an MCP client are required. Python setup needs version 3.11 or newer. The hosted paper route uses OAuth and no wallet key.[1]

Install and connect

The docs describe a Claude Desktop extension, a local Python/stdin-out server and a remote HTTP MCP connection. Setup and credentials belong in the selected client’s local settings, never in chat.[1]

Safety and terms

Custody and keys

Local live trading uses a signing key on the operator’s computer. The remote paper connector uses no wallet keys. The separate hosted quoting pilot uses an authorized session key; these three modes have different authority boundaries.[1]

Limitations the provider states

Paper fills omit queue position, latency, market impact and fees. Local submitted-notional limits reset with the server process and are not account-wide daily loss limits. check_order is opt-in rather than automatically enforced on every submission.[1]

Sources

1. 1. oddsrail.app/docs (opens in a new tab)
2. 2. github.com/hmesutozsoy/oddsrail (opens in a new tab)
3. 3. raw.githubusercontent.com/hmesutozsoy/oddsrail/main/LICENSE (opens in a new tab)