Entity Connections API

Discover the details of the Entity Connections API.

Overview

Users will be able to access relationships between a known WorldCat Entity and related WorldCat Entities and FAST Concepts based on co-occurance in WorldCat. Users will also be able to access WorldCat Entity Works related to the known WorldCat Entity.

 Note: An additional subscription is required to use the Entity Connections API.

To learn about OCLC APIs and get started with the Entity Connections API, see:

If you're ready to start using the Entity Connections API, the OCLC Developer Network can help you learn more. The OCLC Developer Network allows you to learn about OCLC APIs, view OCLC API documentation, and participate in the OCLC APIs community.

About Entity Connections API

Parameters

Parameter Required Supported Values Example
q TRUE
  • Query which needs to be searched
  • A fully formed WorldCat Entities ID
 q=https://entities.oclc.org/worldcat/entity/E39PBJqbh7kt6hKyc8TVBRfjG3
namespace FALSE
  • String value 
  • Default namespace value = default
 namespace=default
headers FALSE
  • application-id is required in higher environments => semi-api is the only supported value at this instance of time
  • registry_id which tracks who made the search (optional)

semi-api

21

Path

v1/connections

Authorization scope

entity-connections

Esempi

Query sample 1

The following query will search Entities data and co-occurance data and return combined results:

GET command: https://entities.api.oclc.org/v2/search/related?q=https://entities.oclc.org/worldcat/entity/E39PBJqqCtcDcw6YhVrpg96tKd

Entities data - Example code
{
  "_index": "transitional-text",
  "_id": "E39PBJqqCtcDcw6YhVrpg96tKd|default",
  "total": 3,
  "results": [
    {
      "id": "https://entities.oclc.org/worldcat/entity/E39Qhp4vBb9MccrbGYWtPMQjDy",
      "type": [
        "Event"
      ],
      "prefLabel.de": "Kosovokrieg",
      "prefLabel.en": "Kosovo War",
      "description.ko": "1998~1999년 코소보 무력충돌"
    },
    {
      "id": "https://entities.oclc.org/worldcat/entity/E39PBJqqCtcDcw6YhVrpg96tKd",
      "type": [
        "AdministrativeArea"
      ],
      "prefLabel.de": "Albanien",
      "prefLabel.en": "Republic of Albania",
      "description.en": "independent political entity in Albania, Europe"
    },
    {
      "id": "https://entities.oclc.org/worldcat/entity/E39PBJvd9g4RTjx6mdyWXrq4v3",
      "type": [
        "Person"
      ],
      "prefLabel.de": "Kara Ahmed Pasha",
      "description.en": "Grand Vizier of the Ottoman Empire"
    }
  ]
}

Query sample 2

GET command: https://entities.api.oclc.org/v1/connections?q=https://id.oclc.org/worldcat/entity/E39PBJkMHVW4rfVXPrhVP4VwG3

Example code
Canada
https://id.oclc.org/worldcat/entity/E39PBJkMHVW4rfVXPrhVP4VwG3
EntityType: AdminsitrativeArea
Note: Updated June 25, 2024
 
{
    "entityUri": https://id.oclc.org/worldcat/entity/E39PBJymvHmTFRDGy9C8fFx7HC,
    "type": [
        "Person"
    ],
    "related_concept": [
        http://id.worldcat.org/fast/799727,
        http://id.worldcat.org/fast/1177093,
        http://id.worldcat.org/fast/799498,
        http://id.worldcat.org/fast/799477,
        http://id.worldcat.org/fast/807048,
        http://id.worldcat.org/fast/1086506,
        http://id.worldcat.org/fast/799028,
        http://id.worldcat.org/fast/807113,
        http://id.worldcat.org/fast/807114,
        http://id.worldcat.org/fast/807049
    ],
    "related_event": [
        https://id.oclc.org/worldcat/entity/E39Qhp4vBbhpYvtywMDH9CxYwK,
        https://id.oclc.org/worldcat/entity/E39Qhp4vBbvj7vqMw7VQ8xryTb
    ],
    "related_person": [
        https://id.oclc.org/worldcat/entity/E39PBJcrf9VkGHQ993Q4kpWbh3,
        https://id.oclc.org/worldcat/entity/E39PBJmxRdphdq8YDmmv3G34v3,
        https://id.oclc.org/worldcat/entity/E39PBJpV3qyKgWRvDghKwf4cyd,
        https://id.oclc.org/worldcat/entity/E39PBJrKTV4VB7v6d4rVJ9Btrq,
        https://id.oclc.org/worldcat/entity/E39PBJfrMfbv8gK7G7Rpgm6VG3,
        https://id.oclc.org/worldcat/entity/E39PBJpJcFFffwHcxrgmp94Xh3,
        https://id.oclc.org/worldcat/entity/E39PBJrWB7MHhkkH346TDhGbVC,
        https://id.oclc.org/worldcat/entity/E39PBJyX3GGmXTJkRfxf3wF7pP,
        https://id.oclc.org/worldcat/entity/E39PBJv4mk4rVHDcMt7RVGgh73,
        https://id.oclc.org/worldcat/entity/E39PBJfWVddrMfjPdVVHhjTj4q,
        https://id.oclc.org/worldcat/entity/E39PBJmhMmCDqWP9Dfrg6dxJjC,
        https://id.oclc.org/worldcat/entity/E39PBJB4cMdh8x7CypbP9CJqwC,
        https://id.oclc.org/worldcat/entity/E39PBJdxbrdJ4Bvhdq6c99c773
    ],
    "related_place": [
        https://id.oclc.org/worldcat/entity/E39PBJtxgQXMWqmjMjjwXRHgrq,
        https://id.oclc.org/worldcat/entity/E39PBJkHrMyfHC67yqRTycbrv3,
        https://id.oclc.org/worldcat/entity/E39PBJm4WtgDXCCr4dpk8PgYfq,
        https://id.oclc.org/worldcat/entity/E39PBJpYDdYvBpjXV6WpybK68C,
        https://id.oclc.org/worldcat/entity/E39PBJcWtkkqd3cMmFw9GBdYT3,
        https://id.oclc.org/worldcat/entity/E39PBJvCPHbXvPDHJhhX89Xjmd,
        https://id.oclc.org/worldcat/entity/E39QbtfRB9KGtqfkFTFbfB77QY,
        https://id.oclc.org/worldcat/entity/E39PBJrGyXpMqXwYhd9fm8C4v3,
        https://id.oclc.org/worldcat/entity/E39QbtfRvQh7864Jh4rDGBFDWc,
        https://id.oclc.org/worldcat/entity/E39PBJt8p3GDkhpJkC9y6FY3wC
    ],
    "co_creators": [
        https://id.oclc.org/worldcat/entity/E39PBJqVXvvQmqvGvWC9F3XDbd,
        https://id.oclc.org/worldcat/entity/E39PCjxrptKFrJCkVVKvy44T9C,
        https://id.oclc.org/worldcat/entity/E39PBJv4mk4rVHDcMt7RVGgh73,
        https://id.oclc.org/worldcat/entity/E39PBJrRcdCXxhGM8hjBrkqPcP,
        https://id.oclc.org/worldcat/entity/E39PBJdRyRWbyYmTK7jJGGjQv3,
        https://id.oclc.org/worldcat/entity/E39PBJfmkWDG9BWVq38Ccvhj4q,
        https://id.oclc.org/worldcat/entity/E39PBJmxVFW6dMXrkwcyhXTGpP,
        https://id.oclc.org/worldcat/entity/E39PBJkTcHHpKkXfxBkcRv7CQq,
        https://id.oclc.org/worldcat/entity/E39PCjJ8F6YyfrDvHJ389P3wyd,
        https://id.oclc.org/worldcat/entity/E39PCjKWWDvGJxQQyJGfTcRTh3
    ],
    "related_works": [
        https://id.oclc.org/worldcat/entity/E39PCH6VdGVMgmHxvvFp8CGT73,
        https://id.oclc.org/worldcat/entity/E39PCGv9vPXJRjg3787gDvBKFq,
        https://id.oclc.org/worldcat/entity/E39PCGy7wKxjcYBT69xqmKq333,
        https://id.oclc.org/worldcat/entity/E39PCG9Kg66kypxhH6DqmMbxfy,
        https://id.oclc.org/worldcat/entity/E39PCFCQQGm87DxBCDJ4w8RTjK,
        https://id.oclc.org/worldcat/entity/E39PCFy7PW8XqWJmWjhkk6HxKq,
        https://id.oclc.org/worldcat/entity/E39PCGJp39hPKpFrbkYhYMcC6X,
        https://id.oclc.org/worldcat/entity/E39PCGyyk6Rbft43DQYKkbHP73,
        https://id.oclc.org/worldcat/entity/E39PCGvkPcmMhyKmQPtRJXRWQq,
        https://id.oclc.org/worldcat/entity/E39PCGGt6VkM3VPjRr8c6cF6PP,
        https://id.oclc.org/worldcat/entity/E39PCGFFfyKTc9bFyky9Q7TDVP,
        https://id.oclc.org/worldcat/entity/E39PCFvFk9DmdG4bGXC38fyxtC,
        https://id.oclc.org/worldcat/entity/E39PCGX4RFPdJ73pk8Jkdh3Qhd,
        https://id.oclc.org/worldcat/entity/E39PCGgD7fgwft8fDdwBxbVYKd,
        https://id.oclc.org/worldcat/entity/E39PCFwCMYtc6x6c4fvDJwDyVC,
        https://id.oclc.org/worldcat/entity/E39PCGXh7HHcwFbrcYQf8d8jYP,
        https://id.oclc.org/worldcat/entity/E39PCGWkY9cQFypPcqFb4WcWMq,
        https://id.oclc.org/worldcat/entity/E39PCGB8DMkkthf9DGb8bPmVQ3,
        https://id.oclc.org/worldcat/entity/E39PCGxXgh7gVt8xpXJqGv6GDy,
        https://id.oclc.org/worldcat/entity/E39PCFBFkyFvwFqtPQXpcf4Yrq,
        https://id.oclc.org/worldcat/entity/E39PCFtyy9mQp3MVPP6hT6XRgC,
        https://id.oclc.org/worldcat/entity/E39PCGVYXTPQ9wrPDHHbdWXBKd,
        https://id.oclc.org/worldcat/entity/E39PCFtFmdQjXpdVDGXgTcXt83,
        https://id.oclc.org/worldcat/entity/E39PCH3BdhjpHxbtfCXvWrXQtq,
        https://id.oclc.org/worldcat/entity/E39PCGvTXmkbt93BCrBhtc9ggC,
        https://id.oclc.org/worldcat/entity/E39PCGqHXhRk6pKkvKxXGrH7VC,
        https://id.oclc.org/worldcat/entity/E39PCGqwkKMv4RDqWmCQJkC8yb,
        https://id.oclc.org/worldcat/entity/E39PCGwPFBDk9BWXJpjDkYYvwP,
        https://id.oclc.org/worldcat/entity/E39PCFHvj9fQRrFqQDmhwCk8VK,
        https://id.oclc.org/worldcat/entity/E39PCGM386rvv8P9JFrwpbpvBP,
        https://id.oclc.org/worldcat/entity/E39PCGfdRtmqkxbWMhdBhQmgTd,
        https://id.oclc.org/worldcat/entity/E39PCH6yCcQrtRVBjbRC33Crmb,
        https://id.oclc.org/worldcat/entity/E39PCFRCF8HDBtJDgJH3KXpvwP,
        https://id.oclc.org/worldcat/entity/E39PCGFxfjTP8JqkWcbjfV6TxP,
        https://id.oclc.org/worldcat/entity/E39PCFXB6yGvwxxv3pqPQkCKgq,
        https://id.oclc.org/worldcat/entity/E39PCGrBrKhWPT33ggdxd3C9tC,
        https://id.oclc.org/worldcat/entity/E39PCFJWggV4BxpVkcM33fPM6C,
        https://id.oclc.org/worldcat/entity/E39PCFPBmKtQTDffjkDwhmXqV3,
        https://id.oclc.org/worldcat/entity/E39PCGPvd3Dpy93H8mMDRG78md,
        https://id.oclc.org/worldcat/entity/E39PCGJx3QHqWFVmYd3GQjfhjK,
        https://id.oclc.org/worldcat/entity/E39PCGhJmtVgJbTTvJpx9kTwT3,
        https://id.oclc.org/worldcat/entity/E39PCGRMRXDDhhMVHRbqPhBbQy,
        https://id.oclc.org/worldcat/entity/E39PCFH3RH3PqmXvb3RrTBFfWP,
        https://id.oclc.org/worldcat/entity/E39PCG4j9xKtRrXDQrq9Jpyq8K,
        https://id.oclc.org/worldcat/entity/E39PCH6hbqYwdkyjQQV7gP93Bd,
        https://id.oclc.org/worldcat/entity/E39PCGKYPyHbvmBDqKJGtw9Mj3,
        https://id.oclc.org/worldcat/entity/E39PCGKTVKxx3C6KhXkcCkVVyb,
        https://id.oclc.org/worldcat/entity/E39PCGKfjfxyk8w7TgMGTgWfVP,
        https://id.oclc.org/worldcat/entity/E39PCGqD7vvGkRDBWvxkv44MMX,
        https://id.oclc.org/worldcat/entity/E39PCFKQwwMjWkWqgGxGtmhpKd,
        https://id.oclc.org/worldcat/entity/E39PCFxjxVw7wyD8Vb4JWyGg83,
        https://id.oclc.org/worldcat/entity/E39PCGfxCrtPG6gy784KkKC7tq,
        https://id.oclc.org/worldcat/entity/E39PCFD9GT8fMk7MgmxXF9gWQq,
        https://id.oclc.org/worldcat/entity/E39PCFQCYByDxvF6xjQ8QcjdpK,
        https://id.oclc.org/worldcat/entity/E39PCGfQJfQcKtjxwg3qKFVJrC,
        https://id.oclc.org/worldcat/entity/E39PCFDtBRjC6HDhJRBQB7HYKd,
        https://id.oclc.org/worldcat/entity/E39PCG3vRr7VCRg3GVXc4rHQv3,
        https://id.oclc.org/worldcat/entity/E39PCH74XgyvfkKhrwXhKpc7BK,
        https://id.oclc.org/worldcat/entity/E39PCGtxmyT64qgcGHM8fcWg4y,
        https://id.oclc.org/worldcat/entity/E39PCG3KwQWTWXFqHBGKt3fHFq,
        https://id.oclc.org/worldcat/entity/E39PCG37qDm98H7RYCtqd6ygjy,
        https://id.oclc.org/worldcat/entity/E39PCG9KC6CC68TYJB8KWTGrMd,
        https://id.oclc.org/worldcat/entity/E39PCGwHDQH7TfWKbFYrm8dRcd,
        https://id.oclc.org/worldcat/entity/E39PCG3kYtcVVMDhFdXDjxXvtq,
        https://id.oclc.org/worldcat/entity/E39PCGFRW6c3MMqgKRgkQTg8Q3,
        https://id.oclc.org/worldcat/entity/E39PCGKRgGwFkjqq3YV79TwGMd,
        https://id.oclc.org/worldcat/entity/E39PCGCgjk3bfCkhyQXRCrHtDm,
        https://id.oclc.org/worldcat/entity/E39PCGFB9dVwHMQHWdc9yQYByd,
        https://id.oclc.org/worldcat/entity/E39PCGq3vmVhW6Kpc8FFQTmwyb,
        https://id.oclc.org/worldcat/entity/E39PCGbqhm8frCPmjqKyM9hm3P,
        https://id.oclc.org/worldcat/entity/E39PCGxcrtWQCKPP8WVPG4jdw3,
        https://id.oclc.org/worldcat/entity/E39PCGmrW4yrmyXY9cCRxJxGQC,
        https://id.oclc.org/worldcat/entity/E39PCFVWDgqgHjYT8FmRtGcdcP,
        https://id.oclc.org/worldcat/entity/E39PCFQrwGGCXyByF6RRRymY8C,
        https://id.oclc.org/worldcat/entity/E39PCGBqB6R6xBpYQJYWbt8YKd,
        https://id.oclc.org/worldcat/entity/E39PCFt8GyJDJ6PmbRbDxVdrYP,
        https://id.oclc.org/worldcat/entity/E39PCGyCMgbvGMMp6wRct97ktC,
        https://id.oclc.org/worldcat/entity/E39PCGxG8F7vdqbqd9rbj9rQbd,
        https://id.oclc.org/worldcat/entity/E39PCH8JWhJgtRXbFcrGDjPwyd,
        https://id.oclc.org/worldcat/entity/E39PCFQqBP7r8b8YbjFWtyhKtX,
        https://id.oclc.org/worldcat/entity/E39PCG48V4rfkfqbxDMdFrvhtq,
        https://id.oclc.org/worldcat/entity/E39PCGGqKFqTYRBTXXKcC8hBHd,
        https://id.oclc.org/worldcat/entity/E39PCGBWW6vqG44Gr8y6xgQykC,
        https://id.oclc.org/worldcat/entity/E39PCGY7bvhmqcrrb9PDtyPh9C,
        https://id.oclc.org/worldcat/entity/E39PCGcxHxYcHk9wxtd9xYdb3P,
        https://id.oclc.org/worldcat/entity/E39PCGmFx3hmbJWdTRCwDTKWpd,
        https://id.oclc.org/worldcat/entity/E39PCFGr7kpCHVq4dmvv6PxmtX,
        https://id.oclc.org/worldcat/entity/E39PCFC9Y8ymJXV4cXy6hp47wP,
        https://id.oclc.org/worldcat/entity/E39PCFtqFyJKgm74m7Thvh7d8K,
        https://id.oclc.org/worldcat/entity/E39PCGH3Rdt6RyjRvKCCXtbkym,
        https://id.oclc.org/worldcat/entity/E39PCGDkfM8ppXxkykGCFkt83P,
        https://id.oclc.org/worldcat/entity/E39PCGJTwYwQHhGxqQxp3mCcGd,
        https://id.oclc.org/worldcat/entity/E39PCH78xp94HWJx3CbbdG34v3,
        https://id.oclc.org/worldcat/entity/E39PCFBKxgbdgfQ6hV4TPgwm7d,
        https://id.oclc.org/worldcat/entity/E39PCGyY4cpjcXyRxdtdJdMC6X,
        https://id.oclc.org/worldcat/entity/E39PCGf9bJ88tH7PmcycktdtPP,
        https://id.oclc.org/worldcat/entity/E39PCG4mKcgDDHW79dJcGqKHP3,
        https://id.oclc.org/worldcat/entity/E39PCGT8TjCFy7dgy76W33BgKd,
        https://id.oclc.org/worldcat/entity/E39PCFB3G9fgbykVbVgDTTWKJP,
        https://id.oclc.org/worldcat/entity/E39PCGhYgQFqm9HQtVxtdjXFfC,
        https://id.oclc.org/worldcat/entity/E39PCGDcCXCbGD6bmXHFDdcFJC,
        https://id.oclc.org/worldcat/entity/E39PCFFXQG69GMttCfjMGX6GwP,
        https://id.oclc.org/worldcat/entity/E39PCFXb36fgP4gT47kcvDG6qP,
        https://id.oclc.org/worldcat/entity/E39PCGrqKXMJhXmj6mhtMDJkXd,
        https://id.oclc.org/worldcat/entity/E39PCGdBhWKDCjyGXPcMbV6HqP,
        https://id.oclc.org/worldcat/entity/E39PCFDJTpdBkKct9G3DjCMXVC,
        https://id.oclc.org/worldcat/entity/E39PCFYMCxt3gHRyqqwJwP6Myd,
        https://id.oclc.org/worldcat/entity/E39PCG6gK8bFHw7m93yhM6qk9P,
        https://id.oclc.org/worldcat/entity/E39PCH7fMgr96MpFrvR6QXJHJC,
        https://id.oclc.org/worldcat/entity/E39PCFt3QVXpq4DMT3vkMQRywK,
        https://id.oclc.org/worldcat/entity/E39PCFG86GMCBQWrfRQtD8HqDC,
        https://id.oclc.org/worldcat/entity/E39PCGdMBTX9W99CCCdcVGcpj3,
        https://id.oclc.org/worldcat/entity/E39PCGD9xhdJTBj9mfrxhM8bq3,
        https://id.oclc.org/worldcat/entity/E39PCGkhmmp3Wf3WG6FWT33QpX,
        https://id.oclc.org/worldcat/entity/E39PCGdPh6TT9Hkj8tFgmHygTd,
        https://id.oclc.org/worldcat/entity/E39PCFDk4pgpBPVd6h4DPyqBpq,
        https://id.oclc.org/worldcat/entity/E39PCGkQ4QwxtrdVFFbJJrgc4C,
        https://id.oclc.org/worldcat/entity/E39PCG6t6YBb6jDMWhC979xBCP,
        https://id.oclc.org/worldcat/entity/E39PCFMJWbWRkHKvC9rmTMjkCP,
        https://id.oclc.org/worldcat/entity/E39PCFBdfc7JpHvJPjFfpjrbbd,
        https://id.oclc.org/worldcat/entity/E39PCGHHbkvgk3YccFYjjtcmwK,
        https://id.oclc.org/worldcat/entity/E39PCGywqF6B9XrGR8mfYffFyq,
        https://id.oclc.org/worldcat/entity/E39PCGbm6dHMkD87CHTykW4dHC,
        https://id.oclc.org/worldcat/entity/E39PCGkfmtwkVFhMXtBgp6wHRX,
        https://id.oclc.org/worldcat/entity/E39PCGHWTPfXM6vKFfytJgk79C,
        https://id.oclc.org/worldcat/entity/E39PCGkB7WpVRj4QYbPG7ywjYP,
        https://id.oclc.org/worldcat/entity/E39PCFWbf3D8FFKXHkJpVPcK8d,
        https://id.oclc.org/worldcat/entity/E39PCGtV3CpKgcB8wJrx3DY773,
        https://id.oclc.org/worldcat/entity/E39PCGhMQXgkkTDkX34dDqwTtq,
        https://id.oclc.org/worldcat/entity/E39PCH7tfrPcHr6VjXRG9F6Frq,
        https://id.oclc.org/worldcat/entity/E39PCGRy9gkdvTPC6y8FyqBybd,
        https://id.oclc.org/worldcat/entity/E39PCG6vTfQWFVKFcm3kVB7XQy,
        https://id.oclc.org/worldcat/entity/E39PCG6Y8HKPdT8ypWc7ygKXtX,
        https://id.oclc.org/worldcat/entity/E39PCGGFTr9MqjpkhprGMDDg8C,
        https://id.oclc.org/worldcat/entity/E39PCGFjhTgrt49R4WG8ddmyBP,
        https://id.oclc.org/worldcat/entity/E39PCGVWgyfhgRTmXxVC7mVYGd,
        https://id.oclc.org/worldcat/entity/E39PCFY9JBqcqcgVJ7wYjt9vH3,
        https://id.oclc.org/worldcat/entity/E39PCFTjgD34Vykk666rPkp49C,
        https://id.oclc.org/worldcat/entity/E39PCGr3bVmFBCxgbqkFqqKcRq,
        https://id.oclc.org/worldcat/entity/E39PCGxdtJWvfhVg4VVKyXwGf3,
        https://id.oclc.org/worldcat/entity/E39PCGkD8VMd3kJMr7MqJRhxH3,
        https://id.oclc.org/worldcat/entity/E39PCG7HQyyt7r4JmXVfV6qb3P,
        https://id.oclc.org/worldcat/entity/E39PCGhbGftxvFVP3gmhRRvF4y,
        https://id.oclc.org/worldcat/entity/E39PCGFpmjTTHmVgJTdxbDvpGd,
        https://id.oclc.org/worldcat/entity/E39PCGBwyT3hdHRgVCPbxYJ6mm,
        https://id.oclc.org/worldcat/entity/E39PCFWFwrWdfkCdkmCBYKbkMq,
        https://id.oclc.org/worldcat/entity/E39PCFQHDMFmBW4phDcCdHJXbd,
        https://id.oclc.org/worldcat/entity/E39PCGGX8H9wPf6Cx8dPHryMvb,
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