Koskamo

FilingFirehose MCP

An official MCP server provided by FilingFirehose that allows AI agents to query SEC EDGAR filings, including 8-K body-text classification, 13D activist tagging, and S-3 ATM detection, enabling inline analysis of financial disclosures.

Visit FilingFirehose

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

FilingFirehose MCP logo, by FilingFirehoseVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-07Operated by FilingFirehose
You need:Add one line to your client config and your AI assistant can query SEC filings inline.Paid tiers add the full historical archive, webhook delivery, and 10× rate limits.
MCP endpoint (Streamable HTTP)
https://filingfirehose.com/mcp
Vendor documentation

What its tools do

4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Not annotated (4)

4 of 4 have a description · 0 of 4 declare behavior hints · 0 of 4 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to filingfirehose.com ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Search 8-K filings for buried material events
  • Identify activist 13D filings by specific firms
  • Detect ATM offerings and dilution signals
  • Retrieve specific filing details by accession number

Source and maintenance

Vendor evidenceRegistry 0.1.0
mcp-registry: com.filingfirehose/firehose@0.1.0Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
filingfirehose 1.29.0
MCP protocol negotiated in check
2025-11-25
Tools
4 advertised
Resources
0 advertised
Resource templates
0 advertised
Prompts
0 advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  },
  "prompts": {
    "listChanged": false
  },
  "resources": {
    "subscribe": false,
    "listChanged": false
  },
  "experimental": {}
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Query parsed US SEC EDGAR filings: 8-K (with body-text item detection that flags suspected misclassifications under Item 8.01), Schedule 13D/G (with activist filer tagging — Saba, Bulldog, Karpus, Icahn, Elliott, Starboard, Pershing, +14 more), S-3 / 424B5 (with shelf size, ATM-offering detection, sales agent extraction). Free public tier returns the last 72 hours of filings; full archive requires a paid API key from filingfirehose.com.

Tools

4 advertised

search_8k_filings
Advertised by the server during the last successful anonymous check.

Search recent SEC 8-K filings (current report) from the past 72 hours. Args: items: Comma-separated 8-K item codes to filter on. Examples: '1.05' (cybersecurity), '5.02' (officer departure), '8.01' (other events), '1.01' (material agreement). Leave None for all 8-Ks. suspected_buried_only: If True, return only filings where our body-text classifier flagged a suspected misclassification — i.e. cyber language under Item 8.01 that should have been 1.05, officer-departure language under 8.01 that should have been 5.02. limit: Max results (1-50, default 25). Returns: JSON-formatted list of filings. Each includes: accession_number, company_name, filed_at, filer_reported_items, detected_items, discrepancy_items (in body but not reported), and suspected_buried_events (map of reported→suspected).

search_8k_filings input schema
{
  "type": "object",
  "title": "search_8k_filingsArguments",
  "properties": {
    "items": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Items",
      "default": null
    },
    "limit": {
      "type": "integer",
      "title": "Limit",
      "default": 25
    },
    "suspected_buried_only": {
      "type": "boolean",
      "title": "Suspected Buried Only",
      "default": false
    }
  }
}
search_8k_filings output schema
{
  "type": "object",
  "title": "search_8k_filingsOutput",
  "required": [
    "result"
  ],
  "properties": {
    "result": {
      "type": "string",
      "title": "Result"
    }
  }
}
search_13d_filings
Advertised by the server during the last successful anonymous check.

Search recent SEC Schedule 13D / 13G filings from the past 72 hours. Args: activist: Filter to filings tagged with this activist filer name. Substring match, case-insensitive. Examples: 'Saba', 'Starboard', 'Icahn', 'Elliott', 'Pershing'. min_percent: Minimum percent of class disclosed. include_amendments: Include 13D/A and 13G/A amendments. Default True. include_passive_13g: Include passive Schedule 13G filings. Default False (only active 13D / 13D/A returned). limit: Max results (1-50, default 25). Returns: JSON list of filings with cusip, percent_of_class, aggregate_amount, activist_filers, and an Item 4 purpose excerpt.

search_13d_filings input schema
{
  "type": "object",
  "title": "search_13d_filingsArguments",
  "properties": {
    "limit": {
      "type": "integer",
      "title": "Limit",
      "default": 25
    },
    "activist": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Activist",
      "default": null
    },
    "min_percent": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "title": "Min Percent",
      "default": null
    },
    "include_amendments": {
      "type": "boolean",
      "title": "Include Amendments",
      "default": true
    },
    "include_passive_13g": {
      "type": "boolean",
      "title": "Include Passive 13G",
      "default": false
    }
  }
}
search_13d_filings output schema
{
  "type": "object",
  "title": "search_13d_filingsOutput",
  "required": [
    "result"
  ],
  "properties": {
    "result": {
      "type": "string",
      "title": "Result"
    }
  }
}
search_atm_offerings
Advertised by the server during the last successful anonymous check.

Search recent SEC at-the-market (ATM) equity offerings from the past 72 hours. Pulls from S-3 / 424B5 family filings where our parser flagged ATM-offering indicators in the body language. Args: sales_agent: Filter by sales agent name (substring, case-insensitive). Examples: 'Cantor Fitzgerald', 'Jefferies', 'Roth Capital', 'H.C. Wainwright'. min_shelf_million_usd: Minimum shelf size in millions USD. limit: Max results (1-50, default 25). Returns: JSON list with shelf_size_usd, is_atm, sales_agents, use_of_proceeds_excerpt.

search_atm_offerings input schema
{
  "type": "object",
  "title": "search_atm_offeringsArguments",
  "properties": {
    "limit": {
      "type": "integer",
      "title": "Limit",
      "default": 25
    },
    "sales_agent": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Sales Agent",
      "default": null
    },
    "min_shelf_million_usd": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "title": "Min Shelf Million Usd",
      "default": null
    }
  }
}
search_atm_offerings output schema
{
  "type": "object",
  "title": "search_atm_offeringsOutput",
  "required": [
    "result"
  ],
  "properties": {
    "result": {
      "type": "string",
      "title": "Result"
    }
  }
}
get_filing
Advertised by the server during the last successful anonymous check.

Fetch one filing by SEC accession number, regardless of recency. Useful when an agent has an accession number from a citation or earlier tool call and needs the parsed details. Args: accession_number: SEC accession in 'XXXXXXXXXX-YY-NNNNNN' format. Returns: JSON for the filing if found in our archive, or {"found": false}.

get_filing input schema
{
  "type": "object",
  "title": "get_filingArguments",
  "required": [
    "accession_number"
  ],
  "properties": {
    "accession_number": {
      "type": "string",
      "title": "Accession Number"
    }
  }
}
get_filing output schema
{
  "type": "object",
  "title": "get_filingOutput",
  "required": [
    "result"
  ],
  "properties": {
    "result": {
      "type": "string",
      "title": "Result"
    }
  }
}

Prompts

0 advertised

No prompt definitions available.

Resources

0 advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
572 ms
95th percentile latency
572 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 572 ms · metadata changed · 4 tool(s), 0 resource(s), 0 resource template(s), 0 prompt(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http filingfirehose-mcp https://filingfirehose.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add filingfirehose-mcp --url https://filingfirehose.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable filingfirehose-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "filingfirehose-mcp": {
      "url": "https://filingfirehose.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "filingfirehose-mcp": {
      "type": "streamableHttp",
      "url": "https://filingfirehose.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start filingfirehose-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "filingfirehose-mcp": {
      "type": "http",
      "url": "https://filingfirehose.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http filingfirehose-mcp https://filingfirehose.com/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://filingfirehose.com/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "filingfirehose-mcp": {
      "serverUrl": "https://filingfirehose.com/mcp"
    }
  }
}

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