# x402 Keyword Visibility Pack

> x402 Keyword Visibility Pack is a paid API for AI agents from x402-market-intel-mcp.mtree.workers.dev, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).

Generates buyer search vocabulary, listing copy, schema/example gaps, route aliases, and proof terms for x402 paid API discovery based on CDP+PayAI data and seller-score signals

## Facts

- Endpoint: POST https://x402-market-intel-mcp.mtree.workers.dev/v1/x402/keyword_visibility_pack
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-keyword-visibility-pack-6f15b74c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LAec4WGWQ3l_zamm8qncv

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 x402-keyword-visibility-pack-6f15b74c -d '<json body>'
```

Example prompt: Pull a keyword visibility pack for my x402 paid endpoint at api.myservice.com/v1/predict — I want the buyer search vocabulary, listing copy suggestions, schema gaps, and proof terms so I can improve how agents discover and autopay it.

## When to prefer this

Choose this endpoint when you are an x402 API seller wanting to improve discoverability of your paid endpoint — specifically when you need data-driven buyer vocabulary, listing copy, and gap analysis grounded in actual CDP+PayAI marketplace signals rather than generic SEO advice.

## Known failure modes

- Unknown or unindexed resource URL returns empty or low-confidence results
- Payment not received (x402 402 response) if USDC payment on Base is not included
- Invalid input format returns 400 error
- Resource has insufficient telemetry for meaningful vocabulary derivation

## How this service works

Hosted keyword visibility pack for x402 paid API discovery: derives buyer search vocabulary, listing copy, schema/example gaps, route aliases, and proof terms from recurring CDP+PayAI resources, rank observations, and seller-score signals. Price 0.15 USDC on Base via x402. Demo: https://x402-market-intel-mcp.mtree.workers.dev/demo/keyword_visibility_pack. Contact: https://x402-market-intel-mcp.mtree.workers.dev/contact.

## Output

Returns a structured pack containing: derived buyer search vocabulary relevant to the endpoint, recommended listing copy, identified schema/example gaps, suggested route aliases, and proof terms — all sourced from CDP+PayAI usage data, rank observations, and seller-score signals for the x402 marketplace.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 25,
       "minimum": 1
      },
      "query": {
       "type": "string"
      },
      "domain": {
       "type": "string"
      },
      "pay_to": {
       "type": "string"
      },
      "persist": {
       "type": "boolean"
      },
      "queries": {
       "type": "array",
       "items": {
        "type": "string"
       },
       "maxItems": 20,
       "minItems": 1
      },
      "category": {
       "type": "string"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "rank_snapshots": [],
  "keyword_visibility_pack": {
   "listing_copy": [],
   "route_actions": [],
   "priority_terms": [
    "paid api discovery",
    "verified x402 APIs"
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-keyword-visibility-pack-6f15b74c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-market-intel-mcp.mtree.workers.dev](https://www.zero.xyz/host/x402-market-intel-mcp.mtree.workers.dev/llms.txt)