Mrmarket.ai vs Octagon MCP Server

A side-by-side look at the Mrmarket.ai and Octagon MCP Server MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Mrmarket.ai logoMrmarket.aiFinance & Fintech · Remote HTTP/SSEAnalytical engine for US-listed equities: screens, rankings, and event studies in plain English.49FairAuth: not declaredOctagon MCP Server logoOctagon MCP ServerFinance & Fintech · Local subprocess (stdio)Octagon AI Agents to integrate private and public market data59GoodAuth: api key required

Verdict: choose Mrmarket.ai for finance & fintech work over a hosted endpoint; choose Octagon MCP Server for finance & fintech as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Mrmarket.ai logoChoose Mrmarket.ai when

  • You need dedicated capabilities in the Finance & Fintech domain.
  • You prefer a remote HTTP/SSE transport.
  • You want tools like query_data, fetch_page, describe_data.
Explore Mrmarket.ai

Octagon MCP Server logoChoose 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.
Explore Octagon MCP Server

Feature & specification comparison

Rows where the two servers differ are marked.

SpecMrmarket.ai logoMrmarket.aiOctagon MCP Server logoOctagon MCP Server
CategoryFinance & FintechFinance & Fintech
Quality signal49/100 · Fair59/100 · Good
Install commandConfirmedConfirmed
TransportRemote HTTP/SSELocal subprocess (stdio)
AuthNot declaredAPI key required
PricingNot declaredFreemium
Required env varsNone listedOCTAGON_API_KEY
Verified ownerCommunity listingCommunity listing
GitHub stars3147
Directory activity 1 views 0 installs 0 upvotes 5 views 0 installs 0 upvotes
Tools86

Tools & capabilities

Mrmarket.ai tools 8

  • query_dataThe workhorse. A natural-language financial question in; structured rows and columns out. Screens, rankings, comparisons, time-series, cohort studies, and event studies are all single calls.
  • fetch_pageThe continuation. When a `query_data` result is too large for one response, page 1 comes back with a `pagination.next_cursor`; pass that cursor to `fetch_page` to retrieve the rest. It runs no new query, so it never costs credits — the original `query_data` is charged once.
  • describe_dataThe data catalog. Browse categories and fields, or search for a specific metric, before composing a question.
  • get_symbolsFast ticker, sector, and industry resolution. Name to ticker, sector membership, or the full universe in under 50ms.
  • getting_startedA structured orientation tour with verified example prompts, grouped by use case.
  • recent_queriesYour recent queries, for context and re-runs.
  • get_account_statusConnected account, plan tier, credit balance, and rate limits. A useful first call in any new session.
  • report_issueFlag a result that looks wrong or a feature that is missing. Pass the `query_id` from the response so the trace can be investigated.

Octagon MCP Server tools 6

  • octagon-prediction-markets-agent
  • prediction_markets_history
  • octagon-docs-search
  • octagon-docs-read
  • octagon-docs-list
  • octagon-docs-refresh

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.

Mrmarket.ai

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "mrmarket-ai": {
      "url": "https://mcp.mrmarket.ai/mcp"
    }
  }
}

Octagon MCP Server

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "octagonai-octagon-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "octagon-mcp"
      ],
      "env": {
        "OCTAGON_API_KEY": "YOUR_OCTAGON_API_KEY_HERE"
      }
    }
  }
}

Frequently asked questions

Mrmarket.ai is categorized under Finance & Fintech and uses a remote HTTP/SSE transport. Octagon MCP Server belongs to Finance & Fintech and uses a local stdio subprocess. Pick Mrmarket.ai for finance & fintech work and Octagon MCP Server for finance & fintech.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Mrmarket.ai has no declared pricing — check the project's own site. Octagon MCP Server is listed as freemium — a free tier with paid plans. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add mrmarket-ai and octagonai-octagon-mcp-server as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Mrmarket.ai has a quality signal of 49/100 (Fair) with 1 views, 0 installs and 3 GitHub stars. Octagon MCP Server has 59/100 (Good) with 5 views, 0 installs and 147 GitHub stars.