# shelf.thirdmade.net Probe Sweep

> shelf.thirdmade.net Probe Sweep is a paid API for AI agents from shelf.thirdmade.net, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Runs a single verify-loop research sweep on any topic, returning confidence-labeled findings

## Facts

- Endpoint: GET https://shelf.thirdmade.net/probe/sweep
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/shelf-thirdmade-net-probe-sweep-a9d78b06
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rau03cy2oaLa_EAnbR1Z6

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 shelf-thirdmade-net-probe-sweep-a9d78b06
```

Example prompt: Can you run a confidence-labeled research sweep on 'mRNA vaccine long-term efficacy' and tell me what the verified findings are?

## When to prefer this

Choose this endpoint when you need a quick, single-pass research sweep with confidence-labeled outputs on any topic, rather than a full multi-step research pipeline. At $0.05 per call it is the low-cost teaser tier; prefer it for lightweight fact-checking, preliminary research, or when you need confidence scores alongside findings. If you need deeper multi-sweep coverage, wait for the full $0.50–$5 sweep tiers.

## Known failure modes

- Missing 'topic' query parameter returns a validation error
- Topic too vague or empty string may return low-confidence or empty findings
- Service may be unavailable if payment (x402, $0.05 USDC) fails or is not provided
- Rate limiting or quota exhaustion may return 402 or 429 errors
- Very niche or obscure topics may yield sparse findings

## How this service works

One verify-loop lane: confidence-labeled findings on any topic. The flagship teaser — full sweeps at $0.50-5 ship when this crosses BUILD.

## Output

Returns confidence-labeled findings on the researched topic — structured results from a single verify-loop pass, where each finding includes a confidence score or label indicating how well-supported it is. The response is in JSON with example output defined in the schema.

## 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",
     "required": [
      "topic"
     ],
     "properties": {
      "topic": {
       "type": "string",
       "description": "Research topic"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/shelf-thirdmade-net-probe-sweep-a9d78b06/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from shelf.thirdmade.net](https://www.zero.xyz/host/shelf.thirdmade.net/llms.txt)