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FilingFirehose MCP Server

by filingfirehose Your server? Claim it
answering

FilingFirehose is answering right now. Last checked 3 min ago. It exposes 4 tools. Last commit 10 May 2026.

SEC EDGAR filings parsed: 8-K body-text classification, 13D activist tagging, S-3 ATM detection.

Uptime history 91 days of history · worst day 23%
91 days agonow
93.5%
Uptime 24h
86 of 92 checks
4
Tools
read from the server
259 ms
Response time
average over 24h
1
Stars
last commit 10 May 2026

FilingFirehose does not always answer

Over the last week it answered 95.8% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

run in your terminal
claude mcp add firehose --transport http https://filingfirehose.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://filingfirehose.com/mcp
~/.codex/config.toml
[mcp_servers.firehose]
url = "https://filingfirehose.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "firehose": {
      "url": "https://filingfirehose.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "firehose": {
      "type": "http",
      "url": "https://filingfirehose.com/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

13d
search_13d_filings
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.
atm
search_atm_offerings
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.
filing
get_filing
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}.
filings
search_8k_filings
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).

Endpoints

URLTransportStateLatencyChecked
https://filingfirehose.com/mcp streamable-http answering 255 ms 3 min ago

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FilingFirehose — questions

Answers built from our own checks of this server.

What can FilingFirehose do?
It exposes 4 tools, read directly from the server on our last check. Among them: get_filing, search_13d_filings, search_8k_filings, search_atm_offerings. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is FilingFirehose working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 86 of 92 checks got a reply (93.5%), average response time 259 ms. The bar chart above shows every period we have measured.
How do I connect FilingFirehose?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does FilingFirehose need an API key?
No. FilingFirehose completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is FilingFirehose?
It answers our handshake in 259 ms on average, which is faster than 53% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is FilingFirehose open source?
The code is open source: it is published under the MIT licence, written in Python and 1 stars on GitHub. The licence covers the code in the repository, not the hosted service at filingfirehose.com, which runs on its operator's own terms.