FilingFirehose

What is FilingFirehose?

FilingFirehose turns SEC EDGAR filings into structured data. Its REST API covers 8-Ks, S-3 and 424B5 shelf takedowns, and Schedule 13D and 13G filings. Each 8-K is classified from its body text, so the response shows which items the filer reported, which items the text actually contains, and a flag for suspected buried events such as cyber incidents or officer departures filed under Item 8.01. Other fields include shelf size, ATM-offering detection, sales-agent extraction and activist-filer tags on 13D filings. New filings appear in the API a median of about 15 seconds after EDGAR publishes them. Besides the API, the site offers email digests, real-time alerts, AI per-ticker reports, an MCP server, a ChatGPT GPT and embeddable widgets. A free public tier covers the past 72 hours, and paid plans run from $29/mo to $299/mo for API access.

Use cases

• Pull SEC 8-K filings through an API
• Detect buried cyber incident disclosures
• Track activist 13D and 13G filings
• Spot ATM offerings and dilution risk
• Get alerts on officer departures
• Generate an AI report on a ticker
• Query SEC filings from an AI assistant

Who it's for

• Developers
• Quant analysts
• Investors and traders
• Securities lawyers
• Security researchers

Why use FilingFirehose

• Returns structured fields instead of raw EDGAR documents, so you skip building a filing parser.
• Flags 8-Ks whose body text contains items the filer did not report, which helps catch events labeled as Other Events.
• Lets you test with free public endpoints that need no API key before paying.
• Works inside Claude, Cursor or ChatGPT through the hosted MCP server and custom GPT.
• Starts at $29/mo for API access, versus the $300+/mo the site cites for sec-api.io.

FilingFirehose features

• REST JSON API for 8-K, S-3, 424B5 and 13D/13G filings
• Body-text item detection with discrepancy flags
• Suspected buried events under Item 8.01
• S-3 and 424B5 dilution signals with shelf size and sales agents
• Activist-filer tagging on 13D and 13G filings
• Webhook delivery and full archive on paid tiers
• Hosted MCP server with search tools
• Custom GPT in the ChatGPT GPT Store
• Python SDK and GitHub Action
• Daily email digest and real-time cyber and litigation alerts
• AI per-ticker reports with citations

FilingFirehose integrations

• ChatGPT
• Claude Desktop
• Cursor
• Windsurf
• Zed
• Stripe
• WordPress
• Ghost
• Substack

How to get started with FilingFirehose

1. Try the public endpoints, which return the last 72 hours of filings without an API key.
2. Request a 3-day Pro trial with an email address, or subscribe to a paid tier through Stripe.
3. Call the API with your key to filter filings by form, item codes, ticker or activist.
4. Add webhooks, email alerts or the MCP server to receive new filings as they arrive.

FilingFirehose limitations

• The public free tier only covers the past 72 hours
• History starts from May 2026 launch; full-history backfills are on the roadmap
• Covers 8-K, 13D/G, S-3 and 424B5 forms rather than every SEC form
• Free public data is cached at 15-minute intervals

FilingFirehose pricing

Yes, FilingFirehose has a free plan. Paid plans start at $9 per month, according to the official pricing page on 24 Oct 2026.

FilingFirehose plans

• Free public tier

  Free

  • Past 72 hours of filings
  • No API key needed
  • Hosted MCP server
  • ChatGPT GPT and embed widgets

• Daily Paid

  $9/month

  • 10-filing morning digest
  • Cross-sector signals
  • Per-ticker email alerts
  • Sent 7am ET on weekdays

• Cyber Alerts

  $19/month

  • Real-time email alerts
  • SEC Item 1.05 cyber 8-Ks
  • Buried-cyber events flagged by the detector

• Hobbyist

  $29/month

  • JSON API for 8-K, S-3, 424B5
  • Body-text item-code classification
  • 30-day history
  • 1 req/sec

• Pro

  $99/month

  • Full archive
  • Webhooks
  • Higher rate limits

• Quant

  $299/month

  • Everything in Pro
  • Contracts endpoint
  • Priority infrastructure
  • Dedicated support

• Full Report

  $49 one-time

  • 5-section AI analysis of a ticker
  • 12-month context
  • Citations on every claim
  • Refund if no data on the ticker

• Founder Lifetime

  $99 one-time

  No renewals

  • Daily digest forever
  • Unlimited $49 reports
  • Alerts Pro
  • Cyber real-time and litigation triggers
  • Pro API key

Plans as listed on the official pricing page on 24 Oct 2026. Prices can change and may vary by country or exclude tax. Check the official pricing page.

FilingFirehose alternatives

The main FilingFirehose alternatives listed on Debuly are Edgrapi, GitHub MCP Server, Logmind, Lovelace, AI SDK and Cloudflare Workers AI. The table compares pricing and platforms; order is A–Z.

1. 

   AI SDK

   Free open-source TypeScript toolkit for building AI-powered apps and agents with one API across OpenAI, Anthropic, Google and more.

   Developer platformsCodingAutomation and agents
   Open sourceVisit AI SDK (official site)
2. 

   Cloudflare Workers AI

   Cloudflare Workers AI runs 50+ open-source AI models on serverless GPUs, billed per use in Neurons from Workers or the REST API.

   Developer platformsCodingAutomation and agents
   FreemiumVisit Cloudflare Workers AI (official site)
3. 

   Edgrapi

   US government data API and hosted MCP server serving SEC EDGAR, SAM.gov, USAspending, Grants.gov and Congress trades as clean JSON.

   Developer platformsAutomation and agentsResearch and search
   FreemiumVisit Edgrapi (official site)
4. 

   GitHub MCP Server

   GitHub's official MCP server that lets AI assistants read repos, manage issues and pull requests, and watch Actions runs in plain language.

   Developer platformsCodingAutomation and agents
   Open sourceVisit GitHub MCP Server (official site)
5. 

   Logmind

   Logmind is an AIOps platform that reads logs and events to detect IT issues early and recommend fixes.

   Developer platformsAutomation and agents
   Free trialVisit Logmind (official site)
6. 

   Lovelace

   Lovelace builds Elemental, a context engine that turns enterprise data into knowledge graphs for AI agents.

   Developer platformsAutomation and agentsResearch and search
   Contact salesVisit Lovelace (official site)

FilingFirehose FAQ

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

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