API access instructions

API is currently available on the Business plan only.

API access to FATGRID gives you unlimited access to our entire database. It lets you get a list of guest posts and link insertion publishers on the market, prices from all sellers, and fresh site metrics from Semrush. It is a quick way to bring FATGRID data into your own tools or workflows.

Key facts

URL: https://api.fatgrid.com/api/public 

Method – GET

Required params

key – required, can be copied  from the profile page

type – required,  available types: domain_prices, domains_list, marketplaces_list

General Error responses

1. Incorrect key

 {
"message": "Key is incorrect",
"error": "Bad Request",
"statusCode": 400
}

2. Incorrect type

{
"message": "Incorrect request type",
"error": "Bad Request",
"statusCode": 400
}

Domain Prices 

Required params

target – required, target to get prices 

Example of request

https://api.fatgrid.com/api/publickey=myKey&type=domain_prices&target=forbes.com

Example of response

[
  {
       "url": "stvincenttimes.com",
       "bestPrice": 66,
       "type": "guest_post",
       "currency": "USD",
       "resources": [
           {
               "resource": "collaborator.pro",
               "type": "article",
               "price": 66,
               "source": "https://collaborator.pro/creator/article/view?id=550918",
               "currency": "USD",
               "priceUpdatedAt": "2025-09-05T01:38:46.374Z",
               "isOwner": false,
               "id": "67c5ea59296f94434fda7d47",
               "rating": "9.0",
               "publisherType": "marketplace",
               "nichePrices": [
                   {
                       "id": "688a0426795753a7a9f9e8cd",
                       "niche": "finance_and_trading",
                       "price": 450,
                       "currency": "USD"
                   }
               ]
           },
           {
               "resource": "adsy.com",
               "type": "article",
               "currency": "USD",
               "price": 164.99,
               "source": "",
               "priceUpdatedAt": "2025-09-04T11:44:37.427Z",
               "isOwner": false,
               "id": "67c99a6e296f94434ff2b4c6",
               "rating": "8.5",
               "publisherType": "marketplace",
               "nichePrices": []
           },
           {
               "resource": "whitepress.com",
               "type": "article",
               "currency": "USD",
               "price": 161,
               "source": "",
               "priceUpdatedAt": "2025-09-05T02:00:06.307Z",
               "isOwner": false,
               "id": "6841a1574fb09478f5982e00",
               "rating": null,
               "publisherType": "marketplace",
               "nichePrices": []
           }
       ],
       "id": "68668be50956e56047a4ca68",
       "dr": 54,
       "linkFollow": "dofollow",
       "sponsored": true,
       "authorityScore": 37,
       "organicTraffic": 16903,
       "backlinks": 22082,
       "refDomains": 2217,
       "database": "us",
       "categories": [
           "Nature",
           "News and Media",
           "Sports"
       ],
       "totalTraffic": 32285,
       "totalOrganicTraffic": 27705,
       "createdAt": "2025-03-03T17:43:38.579Z",
       "bestNichePrices": [
           {
               "id": "68ba4426b0ef367cea8991bd",
               "niche": "finance_and_trading",
               "price": 450,
               "currency": "USD"
           }
       ]
   }
]

Error responses

1. Empty target

{
   "message": "Target is required",
   "error": "Bad Request",
   "statusCode": 400
}

Domains List

Required params

page – required, number of page

limit – required, limit of items, up to 500

Optional params (filters)

minPrice – minimum number of the best price

maxPrice – maximum number of the best price

minDr – minimum number of domain rating

maxDr – maximum number of authority score

minAs – minimum number of authority score

maxAs – maximum number of authority score

minRefDomains – minimum number of referring domains

maxRefDomains – maximum number of referring domains

minTotalOrganicTraffic – minimum number of total organic traffic

maxTotalOrganicTraffic – maximum number of total organic traffic

minTotalTraffic – minimum number of total traffic

maxTotalTraffic – maximum number of total traffic

minTraffic – minimum number of traffic from the top country

maxTraffic – maximum number of traffic from the top country

minOrganicTraffic – minimum number of organic traffic from the top country

maxOrganicTraffic – maximum number of organic traffic from the top country

linkFollow – type of link follow: dofollow, nofollow

offerType – type of publishing: guest_post, link_insertion

sponsored – 1 or 0, 1 – only sponsored domains, 0 only unsponsored

createdAtFrom – min date of creation site on the platform e.g., 2025-09-01

createdAtTo – max date of creation site on the platform e.g., 2025-09-01

databases – list of databases divided by a comma, e.g., us,uk,es.
List of databases below

categories – list of categories divided by a comma, e.g., Lifestyle,Arts.
List of categories below

niches – list of restricted niches divided by a comma, e.g., crypto, adult
List of niches below

resources – list of resources divided by comma, e.g. collaborator.pro, prnews.io
List of resources below

languages – list of languages divided by a comma, e.g. en,uk
List of languages below

Example of request

https://api.fatgrid.com/api/public?key=myKey&type=domains_list&page=1&limit=100

Example of response

{
   "items": [
    {
       "url": "stvincenttimes.com",
       "bestPrice": 66,
       "type": "guest_post",
       "currency": "USD",
       "resources": [
           {
               "resource": "collaborator.pro",
               "type": "article",
               "price": 66,
               "source": "https://collaborator.pro/creator/article/view?id=550918",
               "currency": "USD",
               "priceUpdatedAt": "2025-09-05T01:38:46.374Z",
               "isOwner": false,
               "id": "67c5ea59296f94434fda7d47",
               "rating": "9.0",
               "publisherType": "marketplace",
               "nichePrices": [
                   {
                       "id": "688a0426795753a7a9f9e8cd",
                       "niche": "finance_and_trading",
                       "price": 450,
                       "currency": "USD"
                   }
               ]
           },
           {
               "resource": "adsy.com",
               "type": "article",
               "currency": "USD",
               "price": 164.99,
               "source": "",
               "priceUpdatedAt": "2025-09-04T11:44:37.427Z",
               "isOwner": false,
               "id": "67c99a6e296f94434ff2b4c6",
               "rating": "8.5",
               "publisherType": "marketplace",
               "nichePrices": []
           },
           {
               "resource": "whitepress.com",
               "type": "article",
               "currency": "USD",
               "price": 161,
               "source": "",
               "priceUpdatedAt": "2025-09-05T02:00:06.307Z",
               "isOwner": false,
               "id": "6841a1574fb09478f5982e00",
               "rating": null,
               "publisherType": "marketplace",
               "nichePrices": []
           }
       ],
       "id": "68668be50956e56047a4ca68",
       "dr": 54,
       "linkFollow": "dofollow",
       "sponsored": true,
       "authorityScore": 37,
       "organicTraffic": 16903,
       "backlinks": 22082,
       "refDomains": 2217,
       "database": "us",
       "categories": [
           "Nature",
           "News and Media",
           "Sports"
       ],
       "totalTraffic": 32285,
       "totalOrganicTraffic": 27705,
       "createdAt": "2025-03-03T17:43:38.579Z",
       "bestNichePrices": [
           {
               "id": "68ba4426b0ef367cea8991bd",
               "niche": "finance_and_trading",
               "price": 450,
               "currency": "USD"
           }
       ]
     }
   ],
   "meta": {
       "itemsPerPage": 1,
       "currentPage": 1,
       "hasMore": true
   }
}

Error responses

1. Empty page

{
   "message": "Page is required",
   "error": "Bad Request",
   "statusCode": 400
}

2. Empty limit

{
   "message": "Limit is required",
   "error": "Bad Request",
   "statusCode": 400
}

3. The limit is exceeded

{
   "message": "Limit is exceeded",
   "error": "Bad Request",
   "statusCode": 400
}

Marketplaces List

No required or optional params

Example of request

https://api.fatgrid.com/api/public?key=myKey&type=marketplaces_list

Example of response

{
   "items": [
       {
           "name": "adsy.com",
           "fetchedAt": "2025-09-04T11:48:01.707Z"
       },
       {
           "name": "backlinked.com",
           "fetchedAt": "2025-09-04T11:49:56.794Z"
       },
       {
           "name": "bazoom.com",
           "fetchedAt": "2025-09-04T11:53:20.822Z"
       },
       {
           "name": "collaborator.pro",
           "fetchedAt": "2025-09-05T01:40:15.566Z"
       },
       {
           "name": "ereferer.com",
           "fetchedAt": "2025-09-04T11:59:38.326Z"
       },
       {
           "name": "guestpostlinks.net",
           "fetchedAt": "2025-09-05T05:08:18.096Z"
       },
       {
           "name": "invalley.com",
           "fetchedAt": "2025-09-04T11:57:03.954Z"
       },
       {
           "name": "linkatomic.com",
           "fetchedAt": "2025-09-04T11:56:35.606Z"
       },
       {
           "name": "linkpublishers.com",
           "fetchedAt": "2025-09-04T12:01:35.220Z"
       },
       {
           "name": "linksmanagement.com",
           "fetchedAt": "2025-09-04T11:57:00.153Z"
       },
       {
           "name": "meup.com",
           "fetchedAt": "2025-09-04T12:18:36.341Z"
       },
       {
           "name": "nobsmarketplace.com",
           "fetchedAt": "2025-09-04T11:57:00.299Z"
       },
       {
           "name": "prnews.io",
           "fetchedAt": "2025-09-05T03:04:50.251Z"
       },
       {
           "name": "prposting.com",
           "fetchedAt": "2025-09-04T11:55:26.364Z"
       },
       {
           "name": "serpzilla.com",
           "fetchedAt": "2025-09-04T12:13:10.993Z"
       },
       {
           "name": "whitepress.com",
           "fetchedAt": "2025-09-05T03:58:43.904Z"
       }
   ],
   "total": 16
}

Search domains

URL: https://api.fatgrid.com/api/public/search-domains 

Method – POST
Payload:
search – required, stringified array, example: “[{“name”:”forbes.con”,”price”:”345″}]” 

Headers:

x-api-key – required, can be copied  from the profile page

General Error responses

1. Incorrect key

{
   "message": "Key is incorrect",
   "error": "Bad Request",
   "statusCode": 400
}

Example of request

Example of response

{
   "entered": 1,
   "found": 1,
   "notFound": 0,
   "notFoundItems": [],
   "spam": 0,
   "spamItems": [],
   "items": [
       {
           "url": "forbes.com",
           "bestPrice": 2824.7999999999997,
           "type": "guest_post",
           "currency": "USD",
           "resources": [
               {
                   "type": "contributor_post",
                   "resource": "prnews.io",
                   "price": 11433,
                   "source": "https://prnews.io/sites/3630-forbescom.html",
                   "currency": "USD",
                   "priceUpdatedAt": "2025-08-05T14:52:47.944Z",
                   "isOwner": false,
                   "id": "67c5eabd296f94434fdc267c",
                   "rating": "10.0",
                   "publisherType": "marketplace",
                   "nichePrices": [
                       {
                           "id": "68921ac0256c0cebac0bba27",
                           "niche": "casino",
                           "price": 11433,
                           "currency": "USD"
                       },
                       {
                           "id": "68921ac0256c0cebac0bba28",
                           "niche": "crypto",
                           "price": 11433,
                           "currency": "USD"
                       }
                   ]
               },
               {
                   "resource": "adsy.com",
                   "type": "article",
                   "currency": "USD",
                   "price": 7957.75,
                   "source": "",
                   "priceUpdatedAt": "2025-08-06T03:00:07.795Z",
                   "isOwner": false,
                   "id": "67c99a6e296f94434ff2bd04",
                   "rating": "8.5",
                   "publisherType": "marketplace",
                   "nichePrices": []
               },
               {
                   "type": "article",
                   "resource": "Private Seller",
                   "currency": "USD",
                   "price": 2824.7999999999997,
                   "priceUpdatedAt": "2025-08-06T03:01:08.198Z",
                   "source": "",
                   "isOwner": false,
                   "id": "686f6bbec8ce909f5b11995d",
                   "rating": null,
                   "publisherType": "user",
                   "nichePrices": [
                       {
                           "id": "6892c575256c0cebac1c6228",
                           "niche": "casino",
                           "price": 4538.4,
                           "currency": "USD"
                       }
                   ],
                   "directBuy": true
               },
               {
                   "type": "article",
                   "resource": "bazoom.com",
                   "currency": "USD",
                   "price": 7650,
                   "priceUpdatedAt": "2025-07-24T03:03:06.369Z",
                   "source": "",
                   "id": "6878679ebd1d9779dc9210d2",
                   "rating": "7.5",
                   "publisherType": "marketplace",
                   "nichePrices": []
               },
               {
                   "resource": "meup.com",
                   "type": "article",
                   "currency": "USD",
                   "price": 8647,
                   "priceUpdatedAt": "2025-07-31T03:16:17.585Z",
                   "source": "",
                   "id": "688ae003a8d8ccd92f5137de",
                   "rating": null,
                   "publisherType": "marketplace",
                   "nichePrices": []
               }
           ],
           "id": "68668c060956e56047a559be",
           "dr": 94,
           "linkFollow": "nofollow",
           "sponsored": false,
           "authorityScore": 98,
           "organicTraffic": 24415000,
           "backlinks": 163327139,
           "refDomains": 1420781,
           "database": "us",
           "category": "General News",
           "totalTraffic": 97630850,
           "traffic": 65660266,
           "totalOrganicTraffic": 53634383,
           "createdAt": "2025-03-03T17:45:04.473Z",
           "bestNichePrices": [
               {
                   "id": "6892c59c256c0cebac1dcaac",
                   "niche": "casino",
                   "price": 4538.4,
                   "currency": "USD"
               },
               {
                   "id": "6892c59c256c0cebac1dcaad",
                   "niche": "crypto",
                   "price": 11433,
                   "currency": "USD"
               }
           ],
           "userPrice": null,
           "priceDifference": null,
           "tags": []
       }
   ],
   "meta": {
       "totalItems": 1,
       "itemsCount": 1,
       "itemsPerPage": 500,
       "totalPages": 1,
       "currentPage": 1
   }
}

Categories

• Agriculture
• Animals and Pets
• Art
• Automotive
• Beauty
• Books
• Business
• Career and Employment
• Computers
• Construction and Repair
• Cryptocurrency
• Culture
• E-commerce
• Education
• Entertainment
• Environment
• Equipment
• Fashion
• Finance
• Food
• For Children
• For Men
• For Women
• Gadgets
• Gambling and Betting
• Games
• Hardware development
• Health and Medicine
• Hobbies and Leisure
• Home and Family
• Humor
• Internet
• Law
• Lifestyle
• Literature
• Logistics
• Manufacturing and Industrial
• Marketing and Advertising
• Miscellaneous
• Mobile
• Movies
• Music
• Nature
• News and Media
• Parenting
• Personal Blogs
• Photography
• Places
• Politics
• Programming
• Public service
• Real estate
• Religion
• Science
• Shopping
• Society
• Software Development
• Sports
• Startups
• Technology
• Trading
• Transportation
• Travelling
• Web development

Databases

• us – United States
• uk – United Kingdom
• ca – Canada
• ru – Russia
• de – Germany
• fr – France
• es – Spain
• it – Italy
• br – Brazil
• au – Australia
• ar – Argentina
• be – Belgium
• ch – Switzerland
• dk – Denmark
• fi – Finland
• hk – Hong Kong
• ie – Ireland
• il – Israel
• mx – Mexico
• nl – Netherlands
• no – Norway
• pl – Poland
• se – Sweden
• sg – Singapore
• tr – Turkey
• jp – Japan
• in – India
• hu – Hungary
• af – Afghanistan
• al – Albania
• dz – Algeria
• ao – Angola
• am – Armenia
• at – Austria
• az – Azerbaijan
• bh – Bahrain
• bd – Bangladesh
• by – Belarus
• bz – Belize
• bo – Bolivia
• ba – Bosnia and Herzegovina
• bw – Botswana
• bn – Brunei
• bg – Bulgaria
• cv – Cabo Verde
• kh – Cambodia
• cm – Cameroon
• cl – Chile
• co – Colombia
• cr – Costa Rica
• hr – Croatia
• cy – Cyprus
• cz – Czech Republic
• cd – Congo
• do – Dominican Republic
• ec – Ecuador
• eg – Egypt
• sv – El Salvador
• ee – Estonia
• et – Ethiopia
• ge – Georgia
• gh – Ghana
• gr – Greece
• gt – Guatemala
• gy – Guyana
• ht – Haiti
• hn – Honduras
• is – Iceland
• id – Indonesia
• jm – Jamaica
• jo – Jordan
• kz – Kazakhstan
• kw – Kuwait
• lv – Latvia
• lb – Lebanon
• lt – Lithuania
• lu – Luxembourg
• mg – Madagascar
• my – Malaysia
• mt – Malta
• mu – Mauritius
• md – Moldova
• mn – Mongolia
• me – Montenegro
• ma – Morocco
• mz – Mozambique
• na – Namibia
• np – Nepal
• nz – New Zealand
• ni – Nicaragua
• ng – Nigeria
• om – Oman
• py – Paraguay
• pe – Peru
• ph – Philippines
• pt – Portugal
• ro – Romania
• sa – Saudi Arabia
• sn – Senegal
• rs – Serbia
• sk – Slovakia
• si – Slovenia
• za – South Africa
• kr – South Korea
• lk – Sri Lanka
• th – Thailand
• bs – Bahamas
• tt – Trinidad and Tobago
• tn – Tunisia
• ua – Ukraine
• ae – United Arab Emirates
• uy – Uruguay
• ve – Venezuela
• vn – Vietnam
• zm – Zambia
• zw – Zimbabwe
• ly – Libya
• pa – Panama
• pk – Pakistan
• tw – Taiwan
• qa – Qatar

Niches

• casino – Casino
• finance_and_trading – Finance&Trading
• crypto – Crypto
• adult – Adult
• dating – Dating
• cbd – CBD
• medicine – Medicine

Resources

• adsy.com
• backlinked.com
• bazoom.com
• collaborator.pro
• ereferer.com
• guestpostlinks.net
• invalley.com
• linkatomic.com
• linkpublishers.com
• linksmanagement.com
• meup.com
• nobsmarketplace.com
• prnews.io
• prposting.com
• serpzilla.com
• whitepress.com
• private_seller

Languages

• af – Afrikaans
• als – Alemannic
• am – Amharic
• an – Aragonese
• ar – Arabic
• arz – Egyptian Arabic
• as – Assamese
• ast – Asturian
• av – Avaric
• az – Azerbaijani
• azb – South Azerbaijani
• ba – Bashkir
• bar – Bavarian
• bcl – Central Bikol
• be – Belarusian
• bg – Bulgarian
• bh – Bihari
• bn – Bengali
• bo – Tibetan
• bpy – Bishnupriya Manipuri
• br – Breton
• bs – Bosnian
• bug – Buginese
• ca – Catalan
• ce – Chechen
• ceb – Cebuano
• ckb – Central Kurdish
• co – Corsican
• cs – Czech
• cv – Chuvash
• cy – Welsh
• da – Danish
• de – German
• diq – Zazaki
• dsb – Lower Sorbian
• dty – Doteli
• dv – Dhivehi
• el – Greek
• eml – Emilian-Romagnol
• en – English
• eo – Esperanto
• es – Spanish
• et – Estonian
• eu – Basque
• fa – Persian
• fi – Finnish
• fr – French
• frr – Northern Frisian
• fy – Western Frisian
• ga – Irish
• gd – Scottish Gaelic
• gl – Galician
• gn – Guarani
• gom – Goan Konkani
• gu – Gujarati
• gv – Manx
• he – Hebrew
• hi – Hindi
• hif – Fiji Hindi
• hr – Croatian
• hsb – Upper Sorbian
• ht – Haitian Creole
• hu – Hungarian
• hy – Armenian
• ia – Interlingua
• id – Indonesian
• ie – Interlingue
• ilo – Iloko
• io – Ido
• is – Icelandic
• it – Italian
• ja – Japanese
• jbo – Lojban
• jv – Javanese
• ka – Georgian
• kk – Kazakh
• km – Khmer
• kn – Kannada
• ko – Korean
• krc – Karachay-Balkar
• ku – Kurdish
• kv – Komi
• kw – Cornish
• ky – Kyrgyz
• la – Latin
• lb – Luxembourgish
• lez – Lezghian
• li – Limburgish
• lmo – Lombard
• lo – Lao
• lrc – Northern Luri
• lt – Lithuanian
• lv – Latvian
• mai – Maithili
• mg – Malagasy
• mhr – Eastern Mari
• mi – Maori
• min – Minangkabau
• mk – Macedonian
• ml – Malayalam
• mn – Mongolian
• mr – Marathi
• mrj – Western Mari
• ms – Malay
• mt – Maltese
• mwl – Mirandese
• my – Burmese
• myv – Erzya
• mzn – Mazanderani
• nah – Nahuatl
• nap – Neapolitan
• nds – Low German
• ne – Nepali
• new – Newari
• nl – Dutch
• nn – Norwegian Nynorsk
• no – Norwegian
• oc – Occitan
• or – Odia
• os – Ossetian
• pa – Punjabi
• pam – Pampanga
• pfl – Palatine German
• pl – Polish
• pms – Piedmontese
• pnb – Western Punjabi
• ps – Pashto
• pt – Portuguese
• qu – Quechua
• rm – Romansh
• ro – Romanian
• ru – Russian
• rue – Rusyn
• sa – Sanskrit
• sah – Sakha
• sc – Sardinian
• scn – Sicilian
• sco – Scots
• sd – Sindhi
• sh – Serbo-Croatian
• si – Sinhala
• sk – Slovak
• sl – Slovenian
• so – Somali
• sq – Albanian
• sr – Serbian
• su – Sundanese
• sv – Swedish
• sw – Swahili
• szl – Silesian
• ta – Tamil
• tcy – Tulu
• te – Telugu
• tg – Tajik
• th – Thai
• tk – Turkmen
• tl – Tagalog
• tr – Turkish
• tt – Tatar
• tyv – Tuvan
• udm – Udmurt
• ug – Uyghur
• uk – Ukrainian
• ur – Urdu
• uz – Uzbek
• vec – Venetian
• vep – Veps
• vi – Vietnamese
• vls – West Flemish
• vo – Volapük
• wa – Walloon
• war – Waray
• wuu – Wu Chinese
• xal – Kalmyk
• xmf – Mingrelian
• yi – Yiddish
• yo – Yoruba
• yue – Cantonese
• zh – Chinese