# KeeperHub Signer Gas Runway Workflow

> KeeperHub Signer Gas Runway Workflow is a paid API for AI agents from app.keeperhub.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Checks or analyzes the gas runway (remaining gas capacity) for a signer address on a specified EVM-compatible blockchain network

## Facts

- Endpoint: POST https://app.keeperhub.com/api/mcp/workflows/signer-gas-runway/call?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/keeperhub-signer-gas-runway-workflow-2b6e0ad4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_G4fkBK0jn7fzgnCBCO8fR

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-signer-gas-runway-workflow-2b6e0ad4 -d '<json body>'
```

Example prompt: Check the gas runway for my signer wallet 0x1234abcd5678ef on the base network — I want to know how much gas capacity is left before my automated workflows stop running.

## When to prefer this

Use this endpoint when you need to programmatically check the gas runway for a specific signer address on an EVM chain as part of a KeeperHub workflow automation — especially useful for monitoring keeper bots and automated on-chain agents to preemptively detect low-gas conditions before workflow execution fails.

## Known failure modes

- Invalid or malformed EVM address returns an error
- Unsupported or misspelled network name causes failure
- Missing required address or network field causes a 400-level error
- Payment of 0.01 USDC not included or rejected causes a 402 response
- Network congestion or node unavailability may cause timeout

## How this service works

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

## Output

Returns a workflow execution object containing a status field (e.g. 'running') and an executionId (e.g. 'exec_abc123'), indicating the workflow was triggered and providing an ID to track the gas runway analysis result.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "properties": {
    "body": {
     "address": {
      "type": "string",
      "description": "EVM address your agent signs with"
     },
     "network": {
      "type": "string",
      "description": "Chain name, e.g. sepolia, ethereum, base"
     }
    }
   }
  },
  "output": {
   "properties": {
    "example": {
     "status": "running",
     "executionId": "exec_abc123"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/keeperhub-signer-gas-runway-workflow-2b6e0ad4/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)