6,622 tools, each one opened, scored and signed by a Toolio reviewer

Vellum

Builds AI agents from a plain-language description, wiring together tools like Notion, Slack, and Stripe.

Checked 5 Oct 2026 Reviewed by Alex Listed since September 2024

Screenshot of Vellum

At a glance

Starts at Free The vendor's site is offline, so no current price was found.
Free tier Yes
Platforms Web, API
Best for Ops and product teams automating recurring reporting tasks
Not for Teams wanting a no-integration standalone chatbot

3.9 out of 5

Scored by Alex after real use

Our verdict

Vellum builds AI agents from a plain-language description, wiring together tools like Notion, Linear, Slack, PostHog, Salesforce, and Stripe to handle tasks such as roadmap reviews, renewal risk alerts, weekly team updates, or SEO article drafts. It's aimed at ops, product, and marketing teams who want recurring reporting or monitoring work handled without a dedicated engineering build. Getting real value still means connecting the relevant outside accounts and configuring what each agent should watch, and the published examples show what's possible rather than guaranteeing a specific workflow runs unmodified.

✓What it does well

Chat-based agent buildingDescribe what you want in plain language and the agent starts working.
Cross-tool integrationsConnects to tools like Notion, Linear, Slack, PostHog, and Salesforce.
Scheduled workflowsRuns recurring tasks like a daily keyword pull or weekly team update.

✕Where it falls short

Integration-dependentAgents lean on connecting to outside tools like Notion, Slack, or Stripe, so value drops without those accounts already in place.
Setup still neededDescribing an agent in chat still requires configuring which data sources and tools it should pull from.
Examples, not guaranteesExample workflows like fraud flagging or SEO articles show what's possible, without guaranteeing any specific one works out of the box.

Key features

Chat-based agent buildingDescribe what you want in plain language and the agent starts working.
Cross-tool integrationsConnects to tools like Notion, Linear, Slack, PostHog, and Salesforce.
Scheduled workflowsRuns recurring tasks like a daily keyword pull or weekly team update.
Data-driven alertsFlags risks such as declining usage or suspicious transactions and reports them automatically.

Questions about Vellum

What does Vellum do?

Vellum builds AI agents from a plain-language description, wiring together tools such as Notion, Linear, Slack, PostHog, Salesforce and Stripe. The agents handle tasks like roadmap reviews, renewal risk alerts, weekly team updates or SEO article drafts, and they can run on a schedule, such as a daily keyword pull.

Is Vellum free?

Toolio lists Vellum with a free tier priced at $0 and no paid plan. However, the vendor's site is offline, so no current price was found when Toolio last checked the tool on 5 Oct 2026.

Who is Vellum for?

Toolio lists Vellum as best for ops and product teams automating recurring reporting tasks, and the reviewer adds marketing teams who want reporting or monitoring work handled without a dedicated engineering build. It is not for teams wanting a standalone chatbot that needs no integrations.

What are the limitations of Vellum?

Vellum's agents depend on outside tools such as Notion, Slack or Stripe, so their value drops without those accounts already in place. Describing an agent in chat still requires configuring which data sources and tools it pulls from, and the reviewer notes that example workflows show what is possible without guaranteeing any specific one works out of the box.

Can Vellum send automatic alerts?

Yes. Vellum's data-driven alerts flag risks such as declining usage or suspicious transactions and report them automatically. It runs on the web and through an API, and Alex scored it 3.9 out of 5 after real use on 5 Oct 2026.

COMPARE