Tags

The tag taxonomy, with network-wide ranking metadata.

List and rank tags.

GET

https://apis.io/api/v1

/tags

The tag taxonomy with network-wide ranking metadata (composite, frequency, breadth, quality_lift, band). Default sort is by composite score.

List and rank tags. › query Parameters

q

string · maxLength: 1024

Free-text query over name and description (and tags where applicable).

band

string · enum · maxLength: 1024

Filter by quality band.

Enum values:

canonical

established

emerging

niche

stale

posture

min_api_count

integer · min: 0 · max: 1000

Only tags applied to at least this many APIs.

sort

string · enum · maxLength: 1024

Enum values:

composite

frequency

breadth

quality_lift

api_count

provider_count

name

Default: composite

fields

string[] · maxItems: 1000 · style: form

Sparse fieldset — comma-separated property names to return.

page

integer · min: 1 · max: 1000000

1-based page number.

Default: 1

limit

integer · min: 1 · max: 100

Items per page.

Default: 25

List and rank tags. › Responses

200

A page of tags.

TagList

Meta · required

Pagination and echoed-query metadata for collection responses.

Tag[] · maxItems: 1000 · required

GET/tags

curl https://apis.io/api/v1/tags

Example Responses

{
  "meta": {
    "total": 13663,
    "page": 1,
    "limit": 2,
    "pages": 6832,
    "query": {}
  },
  "data": [
    {
      "slug": "company",
      "name": "Company",
      "composite": 70.7,
      "band": "posture",
      "provider_count": 14964,
      "api_count": 72,
      "frequency": 100,
      "breadth": 100,
      "quality_lift": 28.6,
      "variants": [
        "COMPANY",
        "Company",
        "company"
      ],
      "neighbors": [
        {
          "tag": "Artificial Intelligence",
          "jaccard": 0.1803,
          "count": 2843
        },
        {
          "tag": "Fintech",
          "jaccard": 0.0993,
          "count": 1524
        },
        {
          "tag": "Healthcare",
          "jaccard": 0.0947,
          "count": 1451
        },
        {
          "tag": "Consumer",
          "jaccard": 0.0876,
          "count": 1315
        },
        {
          "tag": "E-Commerce",
          "jaccard": 0.0803,
          "count": 1230
        },
        {
          "tag": "Payments",
          "jaccard": 0.0572,
          "count": 897
        },
        {
          "tag": "Life Sciences",
          "jaccard": 0.0548,
          "count": 824
        },
        {
          "tag": "Machine-Learning",
          "jaccard": 0.0529,
          "count": 807
        }
      ],
      "senses": null,
      "sense_unassigned": null
    },
    {
      "slug": "artificial-intelligence",
      "name": "Artificial Intelligence",
      "composite": 58.5,
      "band": "canonical",
      "provider_count": 3648,
      "api_count": 606,
      "frequency": 100,
      "breadth": 100,
      "quality_lift": 27.2,
      "variants": [
        "AI",
        "Ai",
        "Artificial Intelligence",
        "ArtificialIntelligence",
        "ai",
        "artificial-intelligence"
      ],
      "neighbors": [
        {
          "tag": "Company",
          "jaccard": 0.1803,
          "count": 2843
        },
        {
          "tag": "Machine-Learning",
          "jaccard": 0.1761,
          "count": 709
        },
        {
          "tag": "Agents",
          "jaccard": 0.102,
          "count": 407
        },
        {
          "tag": "MCP",
          "jaccard": 0.096,
          "count": 429
        },
        {
          "tag": "Healthcare",
          "jaccard": 0.075,
          "count": 380
        },
        {
          "tag": "AI Agents",
          "jaccard": 0.0688,
          "count": 283
        },
        {
          "tag": "LLM",
          "jaccard": 0.0678,
          "count": 252
        },
        {
          "tag": "Analytics",
          "jaccard": 0.0656,
          "count": 308
        }
      ],
      "senses": null,
      "sense_unassigned": null
    }
  ]
}

json

application/json

Get one tag, with its linked providers, APIs, and neighbors.

GET

https://apis.io/api/v1

/tags/{slug}

Returns a single tag by slug, including its network-wide ranking metadata, name variants, neighbor tags, and the providers and APIs it is applied to.

Get one tag, with its linked providers, APIs, and neighbors. › path Parameters

slug

string · maxLength: 1024 · required

Tag slug (e.g. messaging).

Get one tag, with its linked providers, APIs, and neighbors. › query Parameters

fields

string[] · maxItems: 1000 · style: form

Sparse fieldset — comma-separated property names to return.

Get one tag, with its linked providers, APIs, and neighbors. › Responses

The tag.

A tag in the taxonomy, with network-wide ranking metadata.

Tag

slug

string · maxLength: 1024 · required

name

string · maxLength: 1024 · required

composite

number · max: 1000000000

Composite ranking score.

band

string · enum · maxLength: 1024

Enum values:

strong

healthy

stale

weak

frequency

number · max: 1000000000

breadth

number · max: 1000000000

quality_lift

number · max: 1000000000

provider_count

integer · max: 1000

api_count

integer · max: 1000

variants

string[] · maxItems: 1000

TagRef[] · maxItems: 1000

Related tags.

Provider[] · maxItems: 1000

object[] · maxItems: 1000

broader

string[]

Tags this tag is INSIDE. source-control is inside developer-tools. An empty array means the relation has been curated for this tag and it has no broader tag; it does not mean unknown.

narrower

string[]

Tags INSIDE this one. developer-tools contains source-control, api-client, ci-cd and 16 more. Does NOT roll into provider_count, which stays the population the click-through returns.

array | null

Disambiguated meanings, when this tag is polysemous.

GET/tags/{slug}

curl https://apis.io/api/v1/tags/:slug

Example Responses

{
  "slug": "company",
  "name": "Company",
  "composite": 70.7,
  "band": "posture",
  "provider_count": 14964,
  "api_count": 72,
  "frequency": 100,
  "breadth": 100,
  "quality_lift": 28.6,
  "variants": [
    "COMPANY",
    "Company",
    "company"
  ],
  "neighbors": [
    {
      "tag": "Artificial Intelligence",
      "jaccard": 0.1803,
      "count": 2843
    },
    {
      "tag": "Fintech",
      "jaccard": 0.0993,
      "count": 1524
    },
    {
      "tag": "Healthcare",
      "jaccard": 0.0947,
      "count": 1451
    },
    {
      "tag": "Consumer",
      "jaccard": 0.0876,
      "count": 1315
    },
    {
      "tag": "E-Commerce",
      "jaccard": 0.0803,
      "count": 1230
    },
    {
      "tag": "Payments",
      "jaccard": 0.0572,
      "count": 897
    },
    {
      "tag": "Life Sciences",
      "jaccard": 0.0548,
      "count": 824
    },
    {
      "tag": "Machine-Learning",
      "jaccard": 0.0529,
      "count": 807
    }
  ],
  "senses": null,
  "sense_unassigned": null,
  "providers": {
    "total": 14964,
    "top": [
      {
        "slug": "and-volume",
        "name": "&Volume"
      },
      {
        "slug": "txt",
        "name": ".txt"
      }
    ]
  },
  "apis": {
    "total": 72,
    "top": [
      {
        "provider": "6sense",
        "slug": "6sense-company-api",
        "name": "6sense Company API"
      },
      {
        "provider": "altimate-ai",
        "slug": "altimate-ai-company-api",
        "name": "Altimate AI COMPANY API"
      }
    ]
  },
  "_type": "tag",
  "members_note": "Top 2 shown per list. Use find_apis?tags=company or find_providers?tags=company for the full, ranked, paginated set. view=full returns every member here."
}

json

application/json

APIs Tag groups

APIs.io API

Tags

The tag taxonomy, with network-wide ranking metadata.

List and rank tags.

GET

https://apis.io/api/v1

/tags

The tag taxonomy with network-wide ranking metadata (composite, frequency, breadth, quality_lift, band). Default sort is by composite score.

List and rank tags. › query Parameters

q

string · maxLength: 1024

Free-text query over name and description (and tags where applicable).

band

string · enum · maxLength: 1024

Filter by quality band.

Enum values:

canonical

established

emerging

niche

stale

posture

min_api_count

integer · min: 0 · max: 1000

Only tags applied to at least this many APIs.

sort

string · enum · maxLength: 1024

Enum values:

composite

frequency

breadth

quality_lift

api_count

provider_count

name

Default: composite

fields

string[] · maxItems: 1000 · style: form

Sparse fieldset — comma-separated property names to return.

page

integer · min: 1 · max: 1000000

1-based page number.

Default: 1

limit

integer · min: 1 · max: 100

Items per page.

Default: 25

List and rank tags. › Responses

200

A page of tags.

TagList

Meta · required

Pagination and echoed-query metadata for collection responses.

Tag[] · maxItems: 1000 · required

GET/tags

curl https://apis.io/api/v1/tags

Example Responses

{
  "meta": {
    "total": 13663,
    "page": 1,
    "limit": 2,
    "pages": 6832,
    "query": {}
  },
  "data": [
    {
      "slug": "company",
      "name": "Company",
      "composite": 70.7,
      "band": "posture",
      "provider_count": 14964,
      "api_count": 72,
      "frequency": 100,
      "breadth": 100,
      "quality_lift": 28.6,
      "variants": [
        "COMPANY",
        "Company",
        "company"
      ],
      "neighbors": [
        {
          "tag": "Artificial Intelligence",
          "jaccard": 0.1803,
          "count": 2843
        },
        {
          "tag": "Fintech",
          "jaccard": 0.0993,
          "count": 1524
        },
        {
          "tag": "Healthcare",
          "jaccard": 0.0947,
          "count": 1451
        },
        {
          "tag": "Consumer",
          "jaccard": 0.0876,
          "count": 1315
        },
        {
          "tag": "E-Commerce",
          "jaccard": 0.0803,
          "count": 1230
        },
        {
          "tag": "Payments",
          "jaccard": 0.0572,
          "count": 897
        },
        {
          "tag": "Life Sciences",
          "jaccard": 0.0548,
          "count": 824
        },
        {
          "tag": "Machine-Learning",
          "jaccard": 0.0529,
          "count": 807
        }
      ],
      "senses": null,
      "sense_unassigned": null
    },
    {
      "slug": "artificial-intelligence",
      "name": "Artificial Intelligence",
      "composite": 58.5,
      "band": "canonical",
      "provider_count": 3648,
      "api_count": 606,
      "frequency": 100,
      "breadth": 100,
      "quality_lift": 27.2,
      "variants": [
        "AI",
        "Ai",
        "Artificial Intelligence",
        "ArtificialIntelligence",
        "ai",
        "artificial-intelligence"
      ],
      "neighbors": [
        {
          "tag": "Company",
          "jaccard": 0.1803,
          "count": 2843
        },
        {
          "tag": "Machine-Learning",
          "jaccard": 0.1761,
          "count": 709
        },
        {
          "tag": "Agents",
          "jaccard": 0.102,
          "count": 407
        },
        {
          "tag": "MCP",
          "jaccard": 0.096,
          "count": 429
        },
        {
          "tag": "Healthcare",
          "jaccard": 0.075,
          "count": 380
        },
        {
          "tag": "AI Agents",
          "jaccard": 0.0688,
          "count": 283
        },
        {
          "tag": "LLM",
          "jaccard": 0.0678,
          "count": 252
        },
        {
          "tag": "Analytics",
          "jaccard": 0.0656,
          "count": 308
        }
      ],
      "senses": null,
      "sense_unassigned": null
    }
  ]
}

json

application/json

Get one tag, with its linked providers, APIs, and neighbors.

GET

https://apis.io/api/v1

/tags/{slug}

Returns a single tag by slug, including its network-wide ranking metadata, name variants, neighbor tags, and the providers and APIs it is applied to.

Get one tag, with its linked providers, APIs, and neighbors. › path Parameters

slug

string · maxLength: 1024 · required

Tag slug (e.g. messaging).

Get one tag, with its linked providers, APIs, and neighbors. › query Parameters

fields

string[] · maxItems: 1000 · style: form

Sparse fieldset — comma-separated property names to return.

Get one tag, with its linked providers, APIs, and neighbors. › Responses

The tag.

A tag in the taxonomy, with network-wide ranking metadata.

Tag

slug

string · maxLength: 1024 · required

name

string · maxLength: 1024 · required

composite

number · max: 1000000000

Composite ranking score.

band

string · enum · maxLength: 1024

Enum values:

strong

healthy

stale

weak

frequency

number · max: 1000000000

breadth

number · max: 1000000000

quality_lift

number · max: 1000000000

provider_count

integer · max: 1000

api_count

integer · max: 1000

variants

string[] · maxItems: 1000

TagRef[] · maxItems: 1000

Related tags.

Provider[] · maxItems: 1000

object[] · maxItems: 1000

broader

string[]

Tags this tag is INSIDE. source-control is inside developer-tools. An empty array means the relation has been curated for this tag and it has no broader tag; it does not mean unknown.

narrower

string[]

Tags INSIDE this one. developer-tools contains source-control, api-client, ci-cd and 16 more. Does NOT roll into provider_count, which stays the population the click-through returns.

array | null

Disambiguated meanings, when this tag is polysemous.

GET/tags/{slug}

curl https://apis.io/api/v1/tags/:slug

Example Responses

{
  "slug": "company",
  "name": "Company",
  "composite": 70.7,
  "band": "posture",
  "provider_count": 14964,
  "api_count": 72,
  "frequency": 100,
  "breadth": 100,
  "quality_lift": 28.6,
  "variants": [
    "COMPANY",
    "Company",
    "company"
  ],
  "neighbors": [
    {
      "tag": "Artificial Intelligence",
      "jaccard": 0.1803,
      "count": 2843
    },
    {
      "tag": "Fintech",
      "jaccard": 0.0993,
      "count": 1524
    },
    {
      "tag": "Healthcare",
      "jaccard": 0.0947,
      "count": 1451
    },
    {
      "tag": "Consumer",
      "jaccard": 0.0876,
      "count": 1315
    },
    {
      "tag": "E-Commerce",
      "jaccard": 0.0803,
      "count": 1230
    },
    {
      "tag": "Payments",
      "jaccard": 0.0572,
      "count": 897
    },
    {
      "tag": "Life Sciences",
      "jaccard": 0.0548,
      "count": 824
    },
    {
      "tag": "Machine-Learning",
      "jaccard": 0.0529,
      "count": 807
    }
  ],
  "senses": null,
  "sense_unassigned": null,
  "providers": {
    "total": 14964,
    "top": [
      {
        "slug": "and-volume",
        "name": "&Volume"
      },
      {
        "slug": "txt",
        "name": ".txt"
      }
    ]
  },
  "apis": {
    "total": 72,
    "top": [
      {
        "provider": "6sense",
        "slug": "6sense-company-api",
        "name": "6sense Company API"
      },
      {
        "provider": "altimate-ai",
        "slug": "altimate-ai-company-api",
        "name": "Altimate AI COMPANY API"
      }
    ]
  },
  "_type": "tag",
  "members_note": "Top 2 shown per list. Use find_apis?tags=company or find_providers?tags=company for the full, ranked, paginated set. view=full returns every member here."
}

json

application/json

APIs Tag groups