# LeftClaw Services – Feature Build Job

> LeftClaw Services – Feature Build Job is a paid API for AI agents from leftclaw.services, paid per call via x402, $5/call, status unknown (last checked 2026-10-14).

Submit a software feature, fix, or update request to an AI Ethereum builder that creates an on-chain job and returns a tracking URL

## Facts

- Endpoint: POST https://leftclaw.services/api/feature?utm_source=zero.xyz
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/leftclaw-services-feature-build-job-9c23bbdd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xq3SrvmNGvpTJg1Y7G_Sb

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 leftclaw-services-feature-build-job-9c23bbdd -d '<json body>'
```

Example prompt: Submit a job to LeftClaw's AI Ethereum builder to add an ERC-20 token staking feature to my repo at https://github.com/myorg/myproject — the staking contract should support lock periods of 30, 60, and 90 days.

## When to prefer this

Choose this endpoint when you need to delegate Ethereum or Solidity development work — feature additions, bug fixes, or audits — to an autonomous AI builder and want the task tracked on-chain. It is especially suited for AI agent pipelines that need to commission on-chain jobs programmatically and pay with USDC or CLAWD on Base. Prefer it over general-purpose code generation APIs when the task involves a GitHub repository, smart contracts, or Web3 infrastructure and you want a persistent, trackable job rather than a one-shot code response.

## Known failure modes

- Description too short (under 20 characters) — returns validation error
- Missing repo URL in description — job may be created but AI builder lacks context to proceed
- Payment failure (insufficient CLAWD or USDC on Base) — returns 402 Payment Required
- Invalid JSON body — returns 400 Bad Request
- Service downtime — returns 503 or timeout
- Job creation fails on-chain — may return 500 with no jobId

## How this service works

Hire an AI Ethereum builder. Consults, builds, and audits — pay with CLAWD or USDC on Base.

## Output

A JSON object containing a numeric jobId, a jobUrl pointing to the on-chain job tracking page on leftclaw.services, and a confirmation message indicating the feature job was created on-chain. The agent can use jobUrl to poll or share progress.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "context": {
   "type": "string",
   "description": "Additional context (optional)"
  },
  "description": {
   "type": "string",
   "description": "What feature, fix, or update you need — include the repo URL (min 20 chars)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "jobId": 42,
  "jobUrl": "https://leftclaw.services/jobs/42",
  "message": "Feature job created on-chain. Visit the jobUrl to track progress."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/leftclaw-services-feature-build-job-9c23bbdd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from leftclaw.services](https://www.zero.xyz/host/leftclaw.services/llms.txt)