# KeeperHub Retainer Defense Workflow

> KeeperHub Retainer Defense Workflow is a paid API for AI agents from app.keeperhub.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-12).

Executes a pre-built 'retainer-defense' blockchain workflow automation via a node-based visual workflow engine

## Facts

- Endpoint: POST https://app.keeperhub.com/api/mcp/workflows/retainer-defense/call?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/keeperhub-retainer-defense-workflow-ab44e074
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oPbr5ibfeQQnlROjfQLZi

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability keeperhub-retainer-defense-workflow-ab44e074 -d '<json body>'
```

Example prompt: Trigger my KeeperHub retainer-defense blockchain workflow to run the automated retainer protection logic and return the execution result.

## When to prefer this

Choose this endpoint when you need to programmatically trigger the KeeperHub retainer-defense automation workflow, specifically for blockchain-based retainer protection logic built in the KeeperHub visual editor. Prefer this over generic smart contract calls when the workflow has been pre-built and configured in KeeperHub's node-based environment.

## Known failure modes

- Invalid or missing workflow parameters result in a 400 error
- Insufficient USDC balance or payment failure returns a 402 Payment Required
- Workflow execution failure due to on-chain errors returns a 500 or execution-failed status
- Malformed request body causes a parsing error
- Workflow not found or misconfigured returns a 404

## How this service works

Build powerful blockchain workflow automations with a visual, node-based editor. Built with Next.js and React Flow.

## Output

Returns the output of the retainer-defense blockchain workflow execution, including status, any on-chain transaction references, and computed results from the node-based automation graph.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/keeperhub-retainer-defense-workflow-ab44e074/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from app.keeperhub.com](https://www.zero.xyz/host/app.keeperhub.com/llms.txt)