# AgentUtility Keyword Suggest

> AgentUtility Keyword Suggest is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Aggregates and deduplicates autocomplete suggestions from Wikipedia OpenSearch and DuckDuckGo into a ranked keyword list for SEO research and query expansion

## Facts

- Endpoint: POST https://x402.agentutility.ai/keyword-suggest
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentutility-keyword-suggest-d1c01dcf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LuujMZZkCu8QDpqpDnRil

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 agentutility-keyword-suggest-d1c01dcf -d '<json body>'
```

Example prompt: Can you pull keyword suggestions and autocomplete ideas for 'machine learning' — give me the top 10 results ranked by relevance, pulling from all sources?

## When to prefer this

Choose this endpoint when you need fast, free-of-auth keyword suggestions aggregated from two reputable public sources (Wikipedia and DuckDuckGo) in a single call. Ideal for SEO content-gap analysis, LLM query expansion, and agent-driven research pipelines where diversity of suggestion sources matters. Prefer this over single-source autocomplete APIs when you want broader coverage and de-duplication handled automatically. Best for programmatic, high-volume keyword ideation at low cost ($0.002 per call via USDC on Base).

## Known failure modes

- Upstream API unavailability from Wikipedia or DuckDuckGo may reduce or eliminate suggestions
- Query returning zero results if the topic is too niche or misspelled
- Payment failure via x402 protocol if insufficient USDC balance
- Rate limiting or timeout from underlying public APIs causing partial results
- Duplicate filtering may reduce count below requested limit if sources overlap heavily

## How this service works

Keyword autocomplete / search suggest / SEO keyword research / query expansion / autocomplete suggestions. Aggregates suggestions from Wikipedia OpenSearch + DuckDuckGo's autocomplete (both public, no auth) into a de-duplicated ranked list. Useful for SEO content-gap analysis, LLM query expansion, agent-driven research.

## Output

Returns a JSON object containing the original query, language, result count, a ranked de-duplicated list of keyword suggestions, per-source counts (Wikipedia and DuckDuckGo), and attribution text. The suggestions are aggregated from both Wikipedia OpenSearch and DuckDuckGo Instant Answer APIs.

## Example request

```json
{
 "sort": "relevance",
 "type": "story",
 "limit": 10,
 "query": "artificial intelligence"
}
```

## 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": {
     "anyOf": [
      {
       "required": [
        "query"
       ]
      },
      {
       "required": [
        "keyword"
       ]
      }
     ],
     "properties": {
      "lang": {
       "type": "string",
       "description": "Wikipedia language code, e.g. 'en', 'es'. Default 'en'."
      },
      "limit": {
       "type": "number",
       "description": "1-50. Default 10."
      },
      "query": {
       "type": "string",
       "description": "Seed query."
      },
      "source": {
       "enum": [
        "wikipedia",
        "duckduckgo",
        "all"
       ],
       "type": "string",
       "description": "Default 'all'."
      },
      "keyword": {
       "type": "string",
       "description": "Alias for query."
      }
     }
    },
    "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",
     "properties": {
      "count": {
       "type": "integer"
      },
      "query": {
       "type": "string"
      },
      "per_source": {
       "type": "object",
       "properties": {
        "wikipedia": {
         "type": "object",
         "properties": {
          "count": {
           "type": "integer"
          }
         }
        },
        "duckduckgo": {
         "type": "object",
         "properties": {
          "count": {
           "type": "integer"
          }
         }
        }
       }
      },
      "attribution": {
       "type": "string"
      },
      "suggestions": {
       "type": "array",
       "items": {
        "type": "string"
       }
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 5,
  "query": "ethereum",
  "per_source": {
   "wikipedia": {
    "count": 5
   },
   "duckduckgo": {
    "count": 5
   }
  },
  "attribution": "Sources: Wikipedia OpenSearch + DuckDuckGo Instant Answer (public APIs).",
  "suggestions": [
   "Ethereum",
   "Ethereum classic",
   "Ethereum 2.0",
   "Ethereum price",
   "Ethereum wallet"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentutility-keyword-suggest-d1c01dcf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.agentutility.ai](https://www.zero.xyz/host/x402.agentutility.ai/llms.txt)