# Proofwork Crypto Task Scanner

> Proofwork Crypto Task Scanner is a paid API for AI agents from proofwork-the402-webhook.phase-voice.workers.dev, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).

Scans and returns actionable non-cyber crypto work opportunities (public bounties, Base market data, USDC receipts) filtered by a minimum margin threshold.

## Facts

- Endpoint: GET https://proofwork-the402-webhook.phase-voice.workers.dev/v1/crypto-task-scan
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/proofwork-crypto-task-scanner-881fcb3a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hzrILP0xczlmWsTbDyUiF

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 proofwork-crypto-task-scanner-881fcb3a
```

Example prompt: Scan for actionable crypto tasks on Base right now — only show me ones with at least a $5 margin.

## When to prefer this

Choose this endpoint when you need a low-cost ($0.01 USDC) automated scan of available crypto work opportunities on Base, particularly public bounties and USDC-denominated tasks. It is best when you want to filter by profitability margin rather than manually reviewing all tasks. Prefer it over general-purpose blockchain explorers when you specifically need actionable task discovery with margin-based filtering on the Base network.

## Known failure modes

- minimum_margin_usd out of allowed range (0-100000) returns validation error
- Payment not provided (x402 payment required) returns 402 status
- Source errors array non-empty when upstream data providers are unavailable
- Empty actionable array when no tasks meet the margin threshold
- Network timeout from upstream data sources causing partial results

## How this service works

Low-cost evidence reports for Base market data, Base USDC receipts, public bounties, and non-cyber crypto work.

## Output

A JSON object containing: an array of actionable tasks/opportunities, the total number of tasks scanned, a count of actionable tasks found, and any source errors encountered during the scan. Each actionable item represents a crypto task (bounty, Base market opportunity, or USDC-related work) meeting the specified margin threshold.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "minimum_margin_usd": {
       "type": "number",
       "default": 1,
       "maximum": 100000,
       "minimum": 0
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "actionable": [],
  "scanned_count": 50,
  "source_errors": [],
  "actionable_count": 3
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/proofwork-crypto-task-scanner-881fcb3a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proofwork-the402-webhook.phase-voice.workers.dev](https://www.zero.xyz/host/proofwork-the402-webhook.phase-voice.workers.dev/llms.txt)