Oddsrail
Rank #11,903app.oddsrail/polymarket-kalshi-arbitrage
Cross-venue prediction markets for AI agents: Polymarket + Kalshi, costed and attributed
Oddsrail is a Model Context Protocol (MCP) server published by hmesutozsoy. It ranks #11,903 of 132,113 servers tracked on MCP Toplist. Oddsrail is listed on Official MCP, with 6 tracked versions. It was first listed on Aug 31, 2026 and most recently updated on Sep 2, 2026.
Ranks ahead of 120,210 of 132,113 servers on MCP Toplist.
Use Oddsrail
No credentials or required configuration declared — add it to your MCP client and go.
claude mcp add polymarket-kalshi-arbitrage -e "ODDSRAIL_DRY_RUN=<your ODDSRAIL_DRY_RUN>" -e "ODDSRAIL_BUILDER_CODE=<your ODDSRAIL_BUILDER_CODE>" -e "POLYMARKET_PRIVATE_KEY=<your POLYMARKET_PRIVATE_KEY>" -e "POLYMARKET_WALLET_ADDRESS=<your POLYMARKET_WALLET_ADDRESS>" -- uvx oddsrailReplace each placeholder with your own value before saving.
[mcp_servers.polymarket-kalshi-arbitrage]
command = "uvx"
args = ["oddsrail"]
[mcp_servers.polymarket-kalshi-arbitrage.env]
ODDSRAIL_DRY_RUN = "<your ODDSRAIL_DRY_RUN>"
ODDSRAIL_BUILDER_CODE = "<your ODDSRAIL_BUILDER_CODE>"
POLYMARKET_PRIVATE_KEY = "<your POLYMARKET_PRIVATE_KEY>"
POLYMARKET_WALLET_ADDRESS = "<your POLYMARKET_WALLET_ADDRESS>"Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"polymarket-kalshi-arbitrage": {
"command": "uvx",
"args": [
"oddsrail"
],
"env": {
"ODDSRAIL_DRY_RUN": "<your ODDSRAIL_DRY_RUN>",
"ODDSRAIL_BUILDER_CODE": "<your ODDSRAIL_BUILDER_CODE>",
"POLYMARKET_PRIVATE_KEY": "<your POLYMARKET_PRIVATE_KEY>",
"POLYMARKET_WALLET_ADDRESS": "<your POLYMARKET_WALLET_ADDRESS>"
}
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"polymarket-kalshi-arbitrage": {
"command": "uvx",
"args": [
"oddsrail"
],
"env": {
"ODDSRAIL_DRY_RUN": "<your ODDSRAIL_DRY_RUN>",
"ODDSRAIL_BUILDER_CODE": "<your ODDSRAIL_BUILDER_CODE>",
"POLYMARKET_PRIVATE_KEY": "<your POLYMARKET_PRIVATE_KEY>",
"POLYMARKET_WALLET_ADDRESS": "<your POLYMARKET_WALLET_ADDRESS>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.
{
"servers": {
"polymarket-kalshi-arbitrage": {
"type": "stdio",
"command": "uvx",
"args": [
"oddsrail"
],
"env": {
"ODDSRAIL_DRY_RUN": "<your ODDSRAIL_DRY_RUN>",
"ODDSRAIL_BUILDER_CODE": "<your ODDSRAIL_BUILDER_CODE>",
"POLYMARKET_PRIVATE_KEY": "<your POLYMARKET_PRIVATE_KEY>",
"POLYMARKET_WALLET_ADDRESS": "<your POLYMARKET_WALLET_ADDRESS>"
}
}
}
}Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"polymarket-kalshi-arbitrage": {
"command": "uvx",
"args": [
"oddsrail"
],
"env": {
"ODDSRAIL_DRY_RUN": "<your ODDSRAIL_DRY_RUN>",
"ODDSRAIL_BUILDER_CODE": "<your ODDSRAIL_BUILDER_CODE>",
"POLYMARKET_PRIVATE_KEY": "<your POLYMARKET_PRIVATE_KEY>",
"POLYMARKET_WALLET_ADDRESS": "<your POLYMARKET_WALLET_ADDRESS>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"polymarket-kalshi-arbitrage": {
"command": "uvx",
"args": [
"oddsrail"
],
"env": {
"ODDSRAIL_DRY_RUN": "<your ODDSRAIL_DRY_RUN>",
"ODDSRAIL_BUILDER_CODE": "<your ODDSRAIL_BUILDER_CODE>",
"POLYMARKET_PRIVATE_KEY": "<your POLYMARKET_PRIVATE_KEY>",
"POLYMARKET_WALLET_ADDRESS": "<your POLYMARKET_WALLET_ADDRESS>"
}
}
}
}Replace each placeholder with your own value before saving.
Show your rank
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[](https://mcptoplist.com/server/app.oddsrail%2Fpolymarket-kalshi-arbitrage)<a href="https://mcptoplist.com/server/app.oddsrail%2Fpolymarket-kalshi-arbitrage"><img src="https://mcptoplist.com/badge/app.oddsrail%2Fpolymarket-kalshi-arbitrage.svg" alt="MCP Toplist: Top 10% of 132,113" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 1 registry
hmesutozsoy
Available versions (6)
| Version | Published |
|---|---|
| 0.10.0 | Sep 2, 2026 |
| 0.9.0 | Sep 2, 2026 |
| 0.8.1 | Sep 1, 2026 |
| 0.8.0 | Aug 31, 2026 |
| 0.7.0 | Aug 31, 2026 |
| 0.6.1 | Aug 31, 2026 |
Frequently asked questions
- Who maintains Oddsrail?
- Oddsrail is maintained by hmesutozsoy, which publishes 5 MCP servers (23 total versions) tracked on MCP Toplist.
- Is Oddsrail listed on the Official MCP Registry?
- Yes — Oddsrail is listed on the Official MCP Registry.
- How many versions does Oddsrail have?
- MCP Toplist tracks 6 versions of Oddsrail, most recently published on Sep 2, 2026.
- Where can I find the source code for Oddsrail?
- The source code for Oddsrail is hosted at github.com/hmesutozsoy/oddsrail.
Do you run this server?
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