Market Data · x402 · early usage

X KOL Watchlist Monitor ($0.05/call): Watch up to 15 X (Twitter) accounts with one call…

by x402.botsmith.dev · discovered, not yet claimed by its owner · updated 2026-10-06

30d calls1

30d payers1

MethodGET

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

X KOL Watchlist Monitor ($0.05/call): Watch up to 15 X (Twitter) accounts with one call: every new post from the list since your last poll, above your engagement floor, with retweets and crypto-spam (airdrop/giveaway/presale bait) filtered out and duplicates removed. Pass the returned newestId back as sinceId to get only what is new - replaces the search + filter + dedupe + paging loop KOL-monitoring agents build by hand. No X account or API key needed.

Tags: x · twitter · social · monitoring · watchlist · bazaar

Call contract

Method: GET
Input: query parameters
Output: json
Last paid call: 2026-10-06

Input example from Bazaar metadata

{
  "filter": "spam",
  "handles": "aeyakovenko,0xMert_,blknoiz06",
  "lang": "en",
  "minFaves": 5
}

Output example

{
  "complete": true,
  "newestId": "1846987139428634858",
  "polledAt": "2026-07-01T07:05:00.000Z",
  "posts": [
    {
      "author": {
        "handle": "example",
        "id": "44196397",
        "name": "Example Dev"
      },
      "createdAt": "2026-07-01T07:00:30.000Z",
      "hashtags": [
        "x402"
      ],
      "id": "1846987139428634858",
      "lang": "en",
      "links": [
        "https://x402.org"
      ],
      "mentions": [
        "coinbase"
      ],
      "metrics": {
        "likes": 1200,
        "quotes": 12,
        "replies": 85,
        "retweets": 340,
        "views": 250000
      },
      "text": "Shipping the new agent payments stack today. HTTP 402 is finally real.",
      "url": "https://x.com/example/status/1846987139428634858"
    }
  ],
  "query": "(from:aeyakovenko OR from:0xMert_ OR from:blknoiz06) min_faves:5 lang:en -filter:retweets -airdrop -giveaway -presale -\"drop your\" -\"gm family\" -winner"
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/25917.json for the price and payment options.
Pay. Call GET https://x402.botsmith.dev/x/watchlist. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.05 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base
Demand: 1 calls · 1 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.05	0xcb9b3F94387389e38EF2A7b3C0B851FB8325d7e9	60s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xcb9b3F94387389e38EF2A7b3C0B851FB8325d7e9",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "50000",
    "amountUsd": 0.05,
    "maxTimeoutSeconds": 60
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "additionalProperties": false,
      "properties": {
        "complete": {
          "description": "False when more new posts exist than one call could fetch; poll again to catch up",
          "type": "boolean"
        },
        "newestId": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "description": "Pass back as sinceId on your next poll"
        },
        "polledAt": {
          "description": "ISO 8601 time of this poll",
          "type": "string"
        },
        "posts": {
          "description": "New posts, newest first, deduped",
          "items": {
            "additionalProperties": false,
            "properties": {
              "author": {
                "additionalProperties": false,
                "properties": {
                  "handle": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  },
                  "id": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  },
                  "name": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  }
                },
                "required": [
                  "handle",
                  "name",
                  "id"
                ],
                "type": "object"
              },
              "createdAt": {
                "anyOf": [
                  {
                    "type": "string"
                  },
                  {
                    "type": "null"
                  }
                ],
                "description": "ISO 8601"
              },
              "hashtags": {
                "items": {
                  "type": "string"
                },
                "type": "array"
              },
              "id": {
                "type": "string"
              },
              "lang": {
                "anyOf": [
                  {
                    "type": "string"
                  },
                  {
                    "type": "null"
                  }
                ]
              },
              "links": {
                "description": "Expanded outbound URLs",
                "items": {
                  "type": "string"
                },
                "type": "array"
              },
              "mentions": {
                "description": "Mentioned handles",
                "items": {
                  "type": "string"
                },
                "type": "array"
              },
              "metrics": {
                "additionalProperties": false,
                "properties": {
                  "likes": {
                    "anyOf": [
                      {
                        "maximum": 9007199254740991,
                        "minimum": -9007199254740991,
                        "type": "integer"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  },
                  "quotes": {
                    "anyOf": [
                      {
                        "maximum": 9007199254740991,
                        "minimum": -9007199254740991,
                        "type": "integer"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  },
                  "replies": {
                    "anyOf": [
                      {
                        "maximum": 9007199254740991,
                        "minimum": -9007199254740991,
                        "type": "integer"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  },
                  "retweets": {
                    "anyOf": [
                      {
                        "maximum": 9007199254740991,
                        "minimum": -9007199254740991,
                        "type": "integer"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  },
                  "views": {
                    "anyOf": [
                      {
                        "maximum": 9007199254740991,
                        "minimum": -9007199254740991,
                        "type": "integer"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  }
                },
                "required": [
                  "likes",
                  "retweets",
                  "replies",
                  "quotes",
                  "views"
                ],
                "type": "object"
              },
              "text": {
                "type": "string"
              },
              "url": {
                "anyOf": [
                  {
                    "type": "string"
                  },
                  {
                    "type": "null"
                  }
                ]
              }
            },
            "required": [
              "id",
              "url",
              "text",
              "createdAt",
              "lang",
              "author",
              "metrics",
              "hashtags",
              "links",
              "mentions"
            ],
            "type": "object"
          },
          "type": "array"
        },
        "query": {
          "description": "The search query executed upstream, for transparency",
          "type": "string"
        }
      },
      "required": [
        "posts",
        "newestId",
        "complete",
        "query",
        "polledAt"
      ],
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {
    "complete": true,
    "newestId": null,
    "polledAt": "string",
    "posts": [
      {
        "author": {
          "handle": null,
          "id": null,
          "name": null
        },
        "createdAt": null,
        "hashtags": [
          "string"
        ],
        "id": "string",
        "lang": null,
        "links": [
          "string"
        ],
        "mentions": [
          "string"
        ],
        "metrics": {
          "likes": null,
          "quotes": null,
          "replies": null,
          "retweets": null,
          "views": null
        },
        "text": "string",
        "url": null
      }
    ],
    "query": "string"
  },
  "type": "string"
}

Examples

curl

curl -X GET 'https://x402.botsmith.dev/x/watchlist'
# -> 402 Payment Required; read PAYMENT-REQUIRED
# retry the identical request with PAYMENT-SIGNATURE

JavaScript

const res = await fetch("https://x402.botsmith.dev/x/watchlist", {
  "method": "GET"
});
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.request("GET", "https://x402.botsmith.dev/x/watchlist")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: x402.botsmith.dev
Endpoint: https://x402.botsmith.dev/x/watchlist
Machine-readable: /resources/25917.json