Octagon MCP Server vs Plainyogurt21 Sec Edgar MCP
A side-by-side look at the Octagon MCP Server and Plainyogurt21 Sec Edgar MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Octagon MCP Server for finance & fintech work as a local process; choose Plainyogurt21 Sec Edgar MCP for finance & fintech. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Octagon MCP Server when
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
OCTAGON_API_KEY. - You want tools like
octagon-prediction-markets-agent, prediction_markets_history, octagon-docs-search.
Choose Plainyogurt21 Sec Edgar MCP when
- You need dedicated capabilities in the Finance & Fintech domain.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Finance & Fintech | Finance & Fintech |
| Quality signal | 59/100 · Good | 29/100 · Emerging |
| Install command | Confirmed | Not confirmed yet |
| Transport | Local subprocess (stdio) | — |
| Auth | API key required | Not declared |
| Pricing | Freemium | Not declared |
| Required env vars | OCTAGON_API_KEY | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 147 | 1 |
| Directory activity | 5 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 6 | Not listed |
| Full listing | View Octagon MCP Server | View Plainyogurt21 Sec Edgar MCP |
Tools & capabilities
Octagon MCP Server tools 6
octagon-prediction-markets-agentprediction_markets_historyoctagon-docs-searchoctagon-docs-readoctagon-docs-listoctagon-docs-refresh
Plainyogurt21 Sec Edgar MCP tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Octagon MCP Server
{
"mcpServers": {
"octagonai-octagon-mcp-server": {
"command": "npx",
"args": [
"-y",
"octagon-mcp"
],
"env": {
"OCTAGON_API_KEY": "YOUR_OCTAGON_API_KEY_HERE"
}
}
}
}
Plainyogurt21 Sec Edgar MCP
No confirmed install command for Plainyogurt21 Sec Edgar MCP yet — follow the setup steps linked from its listing page rather than a guessed package name.