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index observed

WebhookTest.net

Anonymous webhook capture, inspection, waiting, and response configuration for AI agents.

Should I use this

Quality & Safety

B
Description quality
90%
Schema completeness
91%
Naming quality
98%
Poisoning risk
100%
Permission match
20%
Protocol compliance
100%

Findings (8)

  • LOWTool 'clear_webhooks' suggests web access but openWorldHint=falsein clear_webhooks
  • LOWTool 'configure_webhook_response' suggests web access but openWorldHint=falsein configure_webhook_response
  • LOWTool 'create_webhook_bucket' suggests web access but openWorldHint=falsein create_webhook_bucket
  • LOWTool 'delete_webhook_bucket' suggests web access but openWorldHint=falsein delete_webhook_bucket
  • LOWTool 'get_webhook' suggests web access but openWorldHint=falsein get_webhook
  • LOWTool 'get_webhook_bucket' suggests web access but openWorldHint=falsein get_webhook_bucket
  • LOWTool 'list_webhooks' suggests web access but openWorldHint=falsein list_webhooks
  • LOWTool 'wait_for_webhook' suggests web access but openWorldHint=falsein wait_for_webhook

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~2,160Tokens (tool definitions)
~2.8 KBTypical response size
Moderate attention impact (1.69% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "webhook-tester": {
      "url": "https://webhooktest.net/mcp"
    }
  }
}

Remote endpoints

https://webhooktest.net/mcpstreamable-http

What it can do

Tool inventory

Tools (8)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🔴clear_webhooks(bucket_id, confirm)

Permanently delete every capture in a bucket. Requires confirm=true.

Input Schema

{
  "type": "object",
  "properties": {
    "bucket_id": {
      "type": "string"
    },
    "confirm": {
      "type": "boolean",
      "description": "must be true to perform this destructive action"
    }
  },
  "required": [
    "bucket_id",
    "confirm"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "success": {
      "type": "boolean"
    },
    "error": {
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "code": {
          "type": "string"
        },
        "message": {
          "type": "string"
        },
        "retry_after_seconds": {
          "type": "integer"
        },
        "limit": {
          "type": "integer"
        }
      },
      "required": [
        "code",
        "message"
      ],
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}
🟡configure_webhook_response(bucket_id, status, content_type, body, headers, ...)

Set the status, content type (JSON, plain text, XML, or form-encoded), body, optional Retry-After or X-Hook-Secret header, and a delay up to 10 seconds returned by the webhook endpoint. Browser visits always receive plain text.

Input Schema

{
  "type": "object",
  "properties": {
    "bucket_id": {
      "type": "string"
    },
    "status": {
      "type": "integer"
    },
    "content_type": {
      "type": "string",
      "description": "application/json, text/plain, application/xml, text/xml, application/soap+xml, application/problem+xml, application/x-www-form-urlencoded, or application/*+json; only a charset parameter is allowed; empty selects application/json"
    },
    "body": {
      "type": "string"
    },
    "headers": {
      "type": "object",
      "description": "optional response headers; only Retry-After and X-Hook-Secret are supported, matched case-insensitively",
      "additionalProperties": {
        "type": "string"
      }
    },
    "delay_ms": {
      "type": "integer",
      "description": "response delay in milliseconds, from 0 to 10000"
    }
  },
  "required": [
    "bucket_id",
    "status",
    "content_type",
    "body"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "success": {
      "type": "boolean"
    },
    "error": {
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "code": {
          "type": "string"
        },
        "message": {
          "type": "string"
        },
        "retry_after_seconds": {
          "type": "integer"
        },
        "limit": {
          "type": "integer"
        }
      },
      "required": [
        "code",
        "message"
      ],
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}
🟡create_webhook_bucket(name, controlled_test)

Create an anonymous temporary webhook capture bucket. The returned bucket ID is a bearer capability and expires after 15 days of inactivity.

Input Schema

{
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "description": "optional display name for the bucket"
    },
    "controlled_test": {
      "type": "boolean",
      "description": "set true only for maintainer QA or automated evaluations; not for a real user's first test"
    }
  },
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string"
    },
    "name": {
      "type": "string"
    },
    "webhook_endpoint": {
      "type": "string"
    },
    "dashboard_url": {
      "type": "string"
    },
    "inactivity_policy": {
      "type": "string"
    },
    "error": {
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "code": {
          "type": "string"
        },
        "message": {
          "type": "string"
        },
        "retry_after_seconds": {
          "type": "integer"
        },
        "limit": {
          "type": "integer"
        }
      },
      "required": [
        "code",
        "message"
      ],
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}
🔴delete_webhook_bucket(bucket_id, confirm)

Permanently delete a bucket and all of its captures. Requires confirm=true.

Input Schema

{
  "type": "object",
  "properties": {
    "bucket_id": {
      "type": "string"
    },
    "confirm": {
      "type": "boolean",
      "description": "must be true to perform this destructive action"
    }
  },
  "required": [
    "bucket_id",
    "confirm"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "success": {
      "type": "boolean"
    },
    "error": {
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "code": {
          "type": "string"
        },
        "message": {
          "type": "string"
        },
        "retry_after_seconds": {
          "type": "integer"
        },
        "limit": {
          "type": "integer"
        }
      },
      "required": [
        "code",
        "message"
      ],
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}
🟢get_webhook(bucket_id, webhook_id, include_sensitive, max_body_bytes)

Read one webhook capture scoped to its bucket. Sensitive headers and query values are redacted by default.

Input Schema

{
  "type": "object",
  "properties": {
    "bucket_id": {
      "type": "string"
    },
    "webhook_id": {
      "type": "string"
    },
    "include_sensitive": {
      "type": "boolean",
      "description": "return sensitive header and query values; defaults to false"
    },
    "max_body_bytes": {
      "type": "integer",
      "description": "maximum body bytes to return; defaults to 65536 and cannot exceed 262144"
    }
  },
  "required": [
    "bucket_id",
    "webhook_id"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "webhook": {
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "id": {
          "type": "string"
        },
        "bucket_id": {
          "type": "string"
        },
        "method": {
          "type": "string"
        },
        "headers": {
          "type": "object",
          "additionalProperties": true
        },
        "query": {
          "type": "object",
          "additionalProperties": true
        },
        "body": {
          "type": "string"
        },
        "created_at": {
          "type": "string"
        },
        "body_bytes": {
          "type": "integer"
        },
        "body_returned_bytes": {
          "type": "integer"
        },
        "body_truncated": {
          "type": "boolean"
        },
        "sensitive_included": {
          "type": "boolean"
        },
        "redacted_fields": {
          "type": [
            "null",
            "array"
          ],
          "items": {
            "type": "string"
          }
        },
        "dashboard_url": {
          "type": "string"
        }
      },
      "required": [
        "id",
        "bucket_id",
        "method",
        "headers",
        "query",
        "body",
        "created_at",
        "body_bytes",
        "body_returned_bytes",
        "body_truncated",
        "sensitive_included",
        "dashboard_url"
      ],
      "additionalProperties": false
    },
    "error": {
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "code": {
          "type": "string"
        },
        "message": {
          "type": "string"
        },
        "retry_after_seconds": {
          "type": "integer"
        },
        "limit": {
          "type": "integer"
        }
      },
      "required": [
        "code",
        "message"
      ],
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}
🟢get_webhook_bucket(bucket_id)

Read a bucket name and its configured HTTP response settings.

Input Schema

{
  "type": "object",
  "properties": {
    "bucket_id": {
      "type": "string",
      "description": "bucket capability ID"
    }
  },
  "required": [
    "bucket_id"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string"
    },
    "name": {
      "type": "string"
    },
    "response_status": {
      "type": "integer"
    },
    "response_content_type": {
      "type": "string"
    },
    "response_body": {
      "type": "string"
    },
    "response_headers": {
      "type": "object",
      "additionalProperties": {
        "type": "string"
      }
    },
    "response_delay_ms": {
      "type": "integer"
    },
    "webhook_endpoint": {
      "type": "string"
    },
    "dashboard_url": {
      "type": "string"
    },
    "error": {
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "code": {
          "type": "string"
        },
        "message": {
          "type": "string"
        },
        "retry_after_seconds": {
          "type": "integer"
        },
        "limit": {
          "type": "integer"
        }
      },
      "required": [
        "code",
        "message"
      ],
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}
🟢list_webhooks(bucket_id, limit, cursor)

List webhook capture summaries in newest-first order using cursor pagination.

Input Schema

{
  "type": "object",
  "properties": {
    "bucket_id": {
      "type": "string"
    },
    "limit": {
      "type": "integer",
      "description": "number of summaries to return, from 1 to 50"
    },
    "cursor": {
      "type": "string",
      "description": "opaque cursor returned by a previous call"
    }
  },
  "required": [
    "bucket_id"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "webhooks": {
      "type": [
        "null",
        "array"
      ],
      "items": {
        "type": "object",
        "properties": {
          "id": {
            "type": "string"
          },
          "method": {
            "type": "string"
          },
          "created_at": {
            "type": "string"
          },
          "body_bytes": {
            "type": "integer"
          }
        },
        "required": [
          "id",
          "method",
          "created_at",
          "body_bytes"
        ],
        "additionalProperties": false
      }
    },
    "has_more": {
      "type": "boolean"
    },
    "next_cursor": {
      "type": "string"
    },
    "dashboard_url": {
      "type": "string"
    },
    "error": {
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "code": {
          "type": "string"
        },
        "message": {
          "type": "string"
        },
        "retry_after_seconds": {
          "type": "integer"
        },
        "limit": {
          "type": "integer"
        }
      },
      "required": [
        "code",
        "message"
      ],
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}
🟢wait_for_webhook(bucket_id, after_webhook_id, wait_seconds, include_sensitive, max_body_bytes)

Return the latest capture, wait for a newer capture, or report received=false after the timeout.

Input Schema

{
  "type": "object",
  "properties": {
    "bucket_id": {
      "type": "string"
    },
    "after_webhook_id": {
      "type": "string",
      "description": "wait for a capture newer than this webhook ID"
    },
    "wait_seconds": {
      "type": "integer",
      "description": "seconds to wait; defaults to 20 and cannot exceed 25"
    },
    "include_sensitive": {
      "type": "boolean"
    },
    "max_body_bytes": {
      "type": "integer"
    }
  },
  "required": [
    "bucket_id"
  ],
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "properties": {
    "received": {
      "type": "boolean"
    },
    "webhook": {
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "id": {
          "type": "string"
        },
        "bucket_id": {
          "type": "string"
        },
        "method": {
          "type": "string"
        },
        "headers": {
          "type": "object",
          "additionalProperties": true
        },
        "query": {
          "type": "object",
          "additionalProperties": true
        },
        "body": {
          "type": "string"
        },
        "created_at": {
          "type": "string"
        },
        "body_bytes": {
          "type": "integer"
        },
        "body_returned_bytes": {
          "type": "integer"
        },
        "body_truncated": {
          "type": "boolean"
        },
        "sensitive_included": {
          "type": "boolean"
        },
        "redacted_fields": {
          "type": [
            "null",
            "array"
          ],
          "items": {
            "type": "string"
          }
        },
        "dashboard_url": {
          "type": "string"
        }
      },
      "required": [
        "id",
        "bucket_id",
        "method",
        "headers",
        "query",
        "body",
        "created_at",
        "body_bytes",
        "body_returned_bytes",
        "body_truncated",
        "sensitive_included",
        "dashboard_url"
      ],
      "additionalProperties": false
    },
    "error": {
      "type": [
        "null",
        "object"
      ],
      "properties": {
        "code": {
          "type": "string"
        },
        "message": {
          "type": "string"
        },
        "retry_after_seconds": {
          "type": "integer"
        },
        "limit": {
          "type": "integer"
        }
      },
      "required": [
        "code",
        "message"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "received"
  ],
  "additionalProperties": false
}

Recommended Prompts

retrieve_data
Get details about [item] from WebhookTest.net
Expected tools: get_webhook
fetch_info
Fetch [information type] using WebhookTest.net
Expected tools: get_webhook
list_items
List all [items] available in WebhookTest.net
Expected tools: list_webhooks
browse_collection
Show me the [collection] from WebhookTest.net
Expected tools: list_webhooks
explore_workflow
List available [items], then get details for each one using WebhookTest.net
Expected tools: list_webhooksget_webhook

Community

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Evidence

Recent observations

verifiedversion not recorded8 tools
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verifiedversion not recorded8 tools