# File hash verification for AI agents: n8n workflow template

> Started by an event in a connected app. It calls services over plain HTTP rather than through connectors. 12 steps: a working afternoon to understand properly.

Source: https://millionrounds.com/workflow/file-hash-verification-for-ai-agents (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Documents and files](https://millionrounds.com/workflows?category=Documents+and+files#library)

# File hash verification for AI agents

Started by an event in a connected app. It calls services over plain HTTP rather than through connectors. 12 steps: a working afternoon to understand properly.

Medium

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Ffile-hash-verification-for-ai-agents)

**12 steps** Medium: a working afternoon

**0** Branches: places the flow splits

**0** Loops or waits

**0** Services by connector: it calls them over plain HTTP

## The flow

Starts it 1 Service 11

The steps in the order they run, from what starts it.

- 1 **Bulk Search MD5 Hashes** Http Request Tool *Service*
- 2 **Bulk Search SHA1 Hashes** Http Request Tool *Service*
- 3 **List SHA1 Children** Http Request Tool *Service*
- 4 **Get Database Info** Http Request Tool *Service*
- 5 **Lookup MD5 Hash** Http Request Tool *Service*
- 6 **Lookup SHA1 Hash** Http Request Tool *Service*
- 7 **Lookup SHA256 Hash** Http Request Tool *Service*
- 8 **List SHA1 Parents** Http Request Tool *Service*
- 9 **Create Search Session** Http Request Tool *Service*
- 10 **Get Session Results** Http Request Tool *Service*
- 11 **Get Top Queries** Http Request Tool *Service*
- 12 **hashlookup CIRCL MCP Server** Mcp trigger *Starts it*

## How it's built

- **Starts on:** An event in a connected app
- **Steps:** 12
- **Size:** Medium: a working afternoon
- **Connects to:** Nothing by connector; it calls services over plain HTTP
- **Model:** None. This is plumbing, not judgement

## Questions

What does it need to run?

An n8n account. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an event in a connected app.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Plan an afternoon. 12 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 12 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Ffile-hash-verification-for-ai-agents)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Workflows like it

Also documents and files, with the same services where possible, closest in size first.

- [**Archive Discord attachments to Google Drive** 12 steps · Discord, Google Drive](https://millionrounds.com/workflow/archive-discord-attachments-to-google-drive)
- [**Automate workflow & credentials backup to S3** 12 steps · S3](https://millionrounds.com/workflow/automate-workflow-and-credentials-backup-to-s3)
- [**Automated digital certificate creator & validator with PDF** 12 steps · Gmail, n8n data table](https://millionrounds.com/workflow/automated-digital-certificate-creator-and-validator-with-pdf)
- [**Automated n8n workflows backup on GitLab** 12 steps · Email, GitLab](https://millionrounds.com/workflow/automated-n8n-workflows-backup-on-gitlab)
- [**Backup tag-selected workflows to GitLab** 12 steps · GitLab](https://millionrounds.com/workflow/backup-tag-selected-workflows-to-gitlab)
- [**Classify contracts and track renewals with Google Drive** 12 steps · Google Drive, Google Sheets](https://millionrounds.com/workflow/classify-contracts-and-track-renewals-with-google-drive)