Skip to content
Feedback4.dev
How it worksFor developersDocs
ES/EN
Start freePro · $4/month
For vibe coders and AI agents

Your agent can already build. Give it feedback it can execute too.

Feedback4.dev is a visual feedback widget for websites. It turns a client click and comment into a structured ticket: your backend receives it through a signed webhook, and your AI agent reads it through REST or MCP. It also records the human decision when you request approval.

The client points at the change. Feedback4.dev delivers a signed event to your backend; Claude or another agent reads the ticket through MCP or REST to start the next iteration.

Start Pro for $4 USD/monthStart free

$4 USD/month billed annually ($48 USD/year). Free plan available.

Signed webhookMCP + RESTClient approval

Real pilot integration: Aviso.Gratis

agent / feedback4 live
PROJECTAviso · customer site
Webhooks
Agent bridge
Credentials
Approval gate
INCOMING EVENTRewrite the hero around the benefit
Agent ready
POST/process/feedback.created200 OK
{ "type": "feedback.created", "project": { "id": "…" }, "data": { "approval_status": "not_requested", "selected_element": { "selector": "main > section.hero" } }, "processing": { "policy": "propose_then_wait" } }
sent to your backendHMAC verified · 1.2s
feedback.created→ context for the agent
See the workflow

From the client site to a traceable decision.

your-client-site.com
NorthstarProductAbout
BUILD WITH CLARITYMake launches feel simple.Give your team the signal to improve every detail.Start a project
What would you like to change?

Click an element and leave a note.

01
Widget on the site

Click an element and leave a note.

F4
PRODUCT STUDIOInbox
3
JM
New feedback

The CTA gets lost on mobile

#48 · homepage
New
AL
Header spacing

Can this feel less crowded?

#47 · about
SP
Change pricing copy

Clarify annual billing.

#46 · pricing
02
Inbox for your team

The CTA gets lost on mobile

The video walkthrough is not available on this device yet. Open the video directly
Watch feedback move from the client site to the agent.Signed delivery, MCP context and human approval in one walkthrough.Open the video directly
A feedback loop your agent can trust

From “make it feel more premium” to a change your agent understands.

Feedback4.dev turns a human reaction into a structured, signed and traceable event. Your backend receives the signal, your agent reads the context, and you decide when to request client approval.

The client points, not specs

A click on the site adds the element, page, viewport, browser and a human description of the change.

Your orchestrator gets the event

Send feedback.created, comments and decisions to your HTTPS endpoint with HMAC signing, retries and delivery state.

Client approval stays explicit and traceable

Feedback4.dev delivers context and request-approval records the decision; it does not edit your repository or deploy changes. Your agent executes under controls you own.

From signal to shipped iteration

The loop stays visible while the work moves fast.

01

Capture on the site

Your client marks the element and describes intent in plain language, without opening an issue.

02

Dispatch to the agent

The signed webhook delivers the ticket to your backend or orchestrator; Claude or another agent can also read it through MCP or REST.

03

Return the decision

Your agent proposes or executes; Feedback4.dev requests approval and keeps the loop visible.

Automation without a black box

The right event, at the right moment.

Build the bridge once and let every new site follow the same protocol. Webhooks for your backend; REST and MCP for agents that need to read and act.

Webhooks REST API MCP
signed webhook · ready for your orchestrator
// context ready for your agent
{
  "type": "feedback.created",
  "project": {
    "id": "10000000-0000-4000-8000-000000000003"
  },
  "data": {
    "title": "Rewrite the hero",
    "approval_status": "not_requested",
    "selected_element": {
      "selector": "main > section.hero"
    }
  },
  "processing": {
    "policy": "propose_then_wait"
  }
}
HMAC verifiedretry-safe delivery
Feedback4.dev Pro
$4USD / month

$4 USD/month billed annually ($48 USD/year). Free plan available.

Your agent moves faster when feedback arrives structured.

Pro connects every client site to the right workspace and gives you the credentials, webhooks and approvals to operate without friction.

Start Pro for $4 USD/monthStart free
Pro includes
  • Create projects from your own agent
  • Signed webhooks with retries and delivery state
  • Project-scoped MCP credentials
  • Human approval workflow with traceable decisions
Cancel renewal anytime · keep access for the paid period
Control you can see

Automatic for the agent. Explicit for the client.

Your automation can create projects, receive tickets and update states. Access stays isolated and approval remains verifiable.

  • Expiring credentials
  • Documented payloads
  • Delivery history and retries
FAQ

Questions before connecting an agent

Does Feedback4.dev execute changes directly?

It does not take control of your repository. It sends context to your agent and records proposal, state and approval so you decide how to execute.

Can I create one project per client site?

Yes. A workspace key can create and configure projects, reviewers, widgets and endpoints without mixing one site's data with another.

What is included in Pro?

Pro is $4 USD per month, billed annually at $48 USD. It includes the multi-project workflow, agent integrations, approvals, signed webhooks and access controls.

Feedback4.dev Pro

Make every comment trigger the next iteration.

Connect your agent to Feedback4.dev Pro and let context travel only as far as it should.

Start Pro for $4 USD/monthStart free
Feedback4.dev

Feedback4.dev · the bridge between human intent and agent execution.

ProductFor developersFor AI agentsPro pricingCreate free account
DevelopersDocsAPI RESTMCPWebhooks
LegalPrivacy NoticeTerms of Use
Contactcontact@feedback4.dev
Inbox / #48Agent ready
NEW · HOMEPAGEIncrease CTA contrast

The button gets lost over the image on mobile.

#hero-cta 390 × 844
feedback.createdURL, selector, viewport and authorized session
JMApproval pending
03
Context-rich ticket

URL, selector, viewport and authorized session