Index onlineMerchant portal
Api Endpoint

AI keyword extraction

Extract keywords and keyphrases from a text without AI (RAKE algorithm scoring frequency and degree), in Spanish or English, plus most frequent words. For tagging, indexing and SEO.

Open interactive test console

Offering

Provider
api.vextorium.com
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
General Utilities
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.vextorium.com/v1/keywords
MIME type
application/json
First seen
2026-10-16T01:50:45.949Z
Last seen
Tags
keywords, NLP, seo, tagging, rake

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.003 USDC
Atomic price: 3000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.003 USDC
Atomic price: 3000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 3
2310 atomic units
Atomic price: 2310 · Network: xrpl:0 · Asset: XRP · Scheme: exact
Payment option 4
0.003 USDC
Atomic price: 3000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Payment option 5
0.003 USDC
Atomic price: 3000 · Network: eip155:10 · Asset: USDC · Scheme: exact
Payment option 6
3000 atomic units
Atomic price: 3000 · Network: eip155:5042 · Asset: 0x3600000000000000000000000000000000000000 · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "3000",
    "payTo": "HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2"
  },
  {
    "scheme": "exact",
    "network": "xrpl:0",
    "asset": "XRP",
    "amount": "2310",
    "payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "3000",
    "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf"
  },
  {
    "scheme": "exact",
    "network": "eip155:10",
    "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
    "amount": "3000",
    "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf"
  },
  {
    "scheme": "exact",
    "network": "eip155:5042",
    "asset": "0x3600000000000000000000000000000000000000",
    "amount": "3000",
    "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf"
  }
]

Observed health

Status
Healthy
Latest latency
387 ms
Average latency
1157 ms
HTTP status
200
Last checked
Reachability
90.9% over 11 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "POST"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json",
        "form-data",
        "text"
      ]
    },
    "body": {
      "properties": {
        "text": {
          "type": "string"
        },
        "limit": {
          "type": "integer"
        }
      },
      "required": [
        "text"
      ]
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": [
        "object",
        "null"
      ],
      "properties": {
        "language": {
          "type": [
            "string",
            "null"
          ]
        },
        "key_sentences": {
          "type": [
            "array",
            "null"
          ],
          "items": {
            "type": [
              "null",
              "object"
            ],
            "properties": {
              "sentence": {
                "type": [
                  "null",
                  "string"
                ]
              },
              "score": {
                "type": [
                  "null",
                  "number"
                ]
              },
              "times": {
                "type": [
                  "null",
                  "number"
                ]
              }
            }
          }
        },
        "frequent_words": {
          "type": [
            "array",
            "null"
          ],
          "items": {
            "type": [
              "null",
              "object"
            ],
            "properties": {
              "word": {
                "type": [
                  "null",
                  "string"
                ]
              },
              "times": {
                "type": [
                  "null",
                  "number"
                ]
              }
            }
          }
        }
      }
    }
  },
  "required": [
    "type"
  ]
}