Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Changed the definition of "search_plans"
⟨262 unchanged words⟩ search","Walmart search","eBay search","eBay sold listings","Facebook Marketplace search","TikTok Shop search"," ⟨179 unchanged words⟩
Changed the definition of "search_plans"
⟨117 unchanged words⟩ ads","Company headcount","Company funding","IP company lookup","X profile","Instagram profile","TikTok profile" ⟨321 unchanged words⟩
Changed the definition of "search_plans"
⟨334 unchanged words⟩ ,"Related keywords","Backlinks","Domain authority","Domain WHOIS"],"type":"string"},"limit":{ ⟨105 unchanged words⟩
Changed the definition of "list_apis" and "search_plans"
⟨13 unchanged words⟩ for each. Pass an API's name to search_plans. It takes no arguments and gives the whole sheet in one answer, every API in the sheet's order, with no paging: each API's name (api), how many plans (plans) and providers (providers) it has, its sheet (sheetPage) and, where it has one, its best page (bestPage), which ranks its providers on our benchmark. Call it first when you don't know an API's name; when you do, call search_plans with it straight away. Free, no key, read-only.
before
—after
{"properties":{"apis":{"description":"Every API on the sheet, in its order.","items":{"properties":{"api":{"description":"The API's name, the api search_plans takes.","type":"string"},"bestPage":{"description":"The API's best page on datacircle.dev, which ranks its providers on our benchmark. Left out where it has none.","format":"uri","type":"string"},"plans":{"description":"How many plans the API has on the sheet.","minimum":1,"type":"integer"},"providers":{"description":"How many providers sell it.","minimum":1,"type":"integer"},"sheetPage":{"description":"The API's sheet on datacircle.dev: its plans and their prices.","format":"uri","type":"string"}},"required":["api","plans","providers"],"type":"object"},"type":"array"}},"required":["apis"],"type":"object"}Changed the definition of "search_plans"
⟨61 unchanged words⟩ reviews","Trustpilot reviews","Glassdoor reviews","Local business search","Local business reviews","Job search","Job postings","Job details" ⟨358 unchanged words⟩
Changed the definition of "search_plans"
⟨246 unchanged words⟩ ,"TikTok Shop product","Amazon search","Google Shopping search","Walmart search","eBay search","Facebook Marketplace ⟨49 unchanged words⟩ "Perplexity answer","Gemini answer","Bing Copilot answer","Google AI Overview answer","Google AI Mode answer","Keyword research","Ranked keywords", ⟨102 unchanged words⟩
Changed the definition of "search_plans"
⟨286 unchanged words⟩ search","Redfin search","Realtor.com search","Google Hotels property","Booking.com property","Airbnb listing","Google Hotels search","Booking.com search","Airbnb search","Tripadvisor search","Tripadvisor reviews","Current weather","Weather forecast","Air quality","CarGurus search","AutoScout24 search","mobile.de search","Auto Trader UK search","CarGurus listing","AutoScout24 listing","mobile.de listing","Auto Trader UK listing","Copart lot","IAAI lot","Bring a Trailer search","Bring a Trailer lot","VIN decoder","Web search","SERP","Search autocomplete"," ⟨123 unchanged words⟩
Changed the definition of "list_apis" and "search_plans"
List theGTMAPIs
TheListsGTMthe APIs on Datacircle's sheet,eachandwiththehownumbermanyof plans and providersit
Changed the definition of "search_plans"
⟨302 unchanged words⟩ search","Tripadvisor search","Tripadvisor reviews","Current weather","Weather forecast","Air quality","CarGurus search","AutoScout24 search","mobile.de search" ⟨156 unchanged words⟩
Changed the definition of "search_plans"
⟨22 unchanged words⟩ enrichment","Employee lookalikes","Employee recommendations","Employee search","People search","Employee email","Email validation","Reverse email lookup","Employee phone","Phone validation","Company profile","Company enrichment","Business verification","Company technologies","Company hierarchy","Company search","Company discovery","Company lookalikes","G2 reviews","Capterra reviews","Trustpilot reviews","Glassdoor reviews","Job search","Job postings","Job details","Job posting details","Job lookalikes","Company jobs","Company job count","Leadership changes","Post search","Post details","Employee posts","Employee articles","Company posts","Post comments","Post reactions","Post reposts","Employee comments","Employee reactions","Facebook ads","Google ads","LinkedIn ads","TikTok ads","Company headcount","Company funding","X profile","Instagram profile","TikTok profile" ⟨3 unchanged words⟩ profile","Facebook page","Threads profile","EmployeeBlueskysearchprofile","PeopleTelegramsearchchannel
Changed the definition of "search_plans"
⟨55 unchanged words⟩ validation","Company profile","Company enrichment","Business verification","Company technologies","Company hierarchy","G2 reviews" ⟨12 unchanged words⟩ Google Play app","Google Play reviews","Amazon product","Google Shopping product","Company search","Company discovery","Company lookalikes","Web search","SERP","Amazon search","App Store search","Google Play search","ChatGPT answer","Perplexity answer","Gemini answer","Bing Copilot answer","News search","Web scraping","Keyword research" ⟨56 unchanged words⟩ ","Facebook posts","Threads posts","Facebook ads","Google ads","LinkedIn ads","TikTok ads","Company headcount","Company funding"] ⟨97 unchanged words⟩
Changed the definition of "search_plans"
⟨59 unchanged words⟩ enrichment","Company technologies","Company hierarchy","G2 reviews","Capterra reviews","Trustpilot reviews","Glassdoor reviews","App Store app","App Store reviews","Google Play app","Google Play reviews","Company search","Company discovery","Company lookalikes" ⟨63 unchanged words⟩ "Reddit posts","Facebook posts","Threads posts","Facebook ads","Company headcount","Company funding"]," ⟨97 unchanged words⟩
Changed the definition of "search_plans"
⟨32 unchanged words⟩ profile","YouTube channel","Reddit profile","Facebook page","Threads profile","Employee search","People search","Employee email" ⟨21 unchanged words⟩ Company lookalikes","Web search","SERP","News search","Web scraping","Keyword research","Ranked keywords","Related keywords","Backlinks","Domain authority","Job search","Job postings","Job details" ⟨36 unchanged words⟩ "TikTok videos","YouTube channel videos","Reddit posts","Facebook posts","Threads posts","Company headcount","Company funding"] ⟨97 unchanged words⟩
Changed the definition of "search_plans"
⟨17 unchanged words⟩ out.","enum":["Employee profile","Cached employee profile","Person enrichment","Cached person enrichment","Employee lookalikes","Cached employee lookalikes","Employee recommendations","X profile","Instagram profile","TikTok profile","YouTube channel","EmployeeRedditsearchprofile","Cached employeeEmployee search","People search","Cached people search","Employee email","Cached employee email","Email validation","Cached email validation","Reverse email lookup","Cached reverse email lookup","Employee phone","Cached employee phone","
Changed the definition of "search_plans"
⟨31 unchanged words⟩ ,"Cached employee lookalikes","Employee recommendations","X profile","Instagram profile","TikTok profile","YouTube channel","Employee search","Cached employee search","People ⟨69 unchanged words⟩ web search","SERP","Cached SERP","Web scraping","Cached web scraping","Job search","Cached job search","Job ⟨69 unchanged words⟩ comments","Employee reactions","Cached employee reactions","X posts","Instagram posts","TikTok videos","YouTube channel videos","Company headcount","Cached company headcount", ⟨102 unchanged words⟩
Changed the definition of "search_plans"
⟨109 unchanged words⟩ search","Cached web search","SERP","Cached SERP","Job search","Cached job search","Job ⟨182 unchanged words⟩
Changed the definition of "search_plans"
⟨103 unchanged words⟩ ,"Company lookalikes","Cached company lookalikes","Web search","Cached web search","SERP","Job search","Cached job search","Job ⟨182 unchanged words⟩
Changed the definition of "search_plans"
⟨147 unchanged words⟩ ,"Cached post search","Post details","Cached post details","Employee posts","Cached employee posts","Employee articles","Company posts","Cached company posts","Post comments","Cached post comments","Post reactions","Cached post reactions","Post reposts","Employee comments","Cached employee comments","Employee reactions","Cached employee reactions","Company headcount","Cached company headcount ⟨102 unchanged words⟩
Changed the definition of "search_plans"
⟨85 unchanged words⟩ ,"Cached company technologies","Company hierarchy","Cached company hierarchy","Company search","Cached company search","Company ⟨14 unchanged words⟩ "Job postings","Cached job postings","Job details","Cached job details","Job posting details","Cached job ⟨156 unchanged words⟩
Changed the definition of "search_plans"
⟨115 unchanged words⟩ ,"Job details","Job posting details","Cached job posting details","Job lookalikes","Company jobs","Cached company jobs","Company job count","Leadership changes","Cached leadership changes","Post search","Cached post search","Post details","Employee posts","Cached employee ⟨10 unchanged words⟩ ","Post reactions","Post reposts","Employee comments","Cached employee comments","Employee reactions","Company headcount", ⟨105 unchanged words⟩
Changed the definition of "search_plans"
⟨26 unchanged words⟩ ,"Cached person enrichment","Employee lookalikes","Cached employee lookalikes","Employee recommendations","Employee search","Cached employee ⟨225 unchanged words⟩
Changed the definition of "search_plans"
⟨21 unchanged words⟩ ,"Cached employee profile","Person enrichment","Cached person enrichment","Employee lookalikes","Employee recommendations","Employee search" ⟨57 unchanged words⟩ "Company discovery","Cached company discovery","Company lookalikes","Cached company lookalikes","Job search","Cached job search ⟨155 unchanged words⟩
Changed the definition of "search_plans"
⟨98 unchanged words⟩ ,"Cached job search","Job postings","Cached job postings","Job details","Job posting details","Job lookalikes","Company jobs","Company job count","Leadership changes","Cached leadership changes","Post search","Post details", ⟨129 unchanged words⟩
Changed the definition of "search_plans"
⟨59 unchanged words⟩ ,"Cached employee phone","Phone validation","Cached phone validation","Company profile","Cached company profile","Company ⟨45 unchanged words⟩ search","Post details","Employee posts","Cached employee posts","Employee articles","Company posts","Cached company posts","Post comments","Post reactions", ⟨113 unchanged words⟩
Changed the definition of "search_plans"
⟨71 unchanged words⟩ ,"Cached company enrichment","Company technologies","Cached company technologies","Company hierarchy","Company search","Cached company ⟨156 unchanged words⟩
Changed the definition of "search_plans"
⟨75 unchanged words⟩ technologies","Company hierarchy","Company search","Cached company search","Company discovery","Cached company discovery","Company lookalikes","Job search","Cached job search","Job postings","Job details", ⟨139 unchanged words⟩
Changed the definition of "search_plans"
⟨47 unchanged words⟩ Cached email validation","Reverse email lookup","Cached reverse email lookup","Employee phone","Cached employee phone","Phone ⟨169 unchanged words⟩
Changed the definition of "search_plans"
⟨27 unchanged words⟩ lookalikes","Employee recommendations","Employee search","Cached employee search","People search","Cached people search","Employee ⟨7 unchanged words⟩ email validation","Reverse email lookup","Employee phone","Cached employee phone","Phone validation","Company profile", ⟨166 unchanged words⟩
Changed the definition of "search_plans"
⟨39 unchanged words⟩ ,"Cached employee email","Email validation","Cached email validation","Reverse email lookup","Employee phone","Phone ⟨169 unchanged words⟩
Changed the definition of "search_plans"
⟨17 unchanged words⟩ out.","enum":["Employee profile","Cached employee profile","Person enrichment","Employee lookalikes","Employee recommendations","Employee search","People search","Cached people search","Employee email","Cached employee email","Email validation","Reverse email lookup","Employee phone","Phone validation","Company profile","Cached company profile","Company enrichment","Cached company enrichment","Company technologies","Company hierarchy","Company search","Company discovery","Cached company discovery","Company lookalikes","Job search","Job postings" ⟨31 unchanged words⟩ comments","Employee reactions","Company headcount","Cached company headcount","Company funding","Cached company funding"],"type":"string"},"limit ⟨94 unchanged words⟩
Unavailable → Live
First tool surface recorded: 2 tools (server version 2.0.0)
Recently observed → Unavailable
Authorization required → not required
Live → Recently observed
Authorization required, Bearer, issuer https://api.datacircle.dev
Certificate recorded, valid to 2026-12-29
Authorization required, Bearer, issuer https://api.datacircle.dev
Unknown → Live
https://api.datacircle.dev/mcp (mcp_streamable_http) — from mcp_registry, with the record
Showing the latest 40 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed
TheSearchessheet'sDatacircle'srowssheet of API plans and gives the ones that match, best first unless you sort them. Call list_apis first for the APIs' names, then pass one as api foreachthatplanAPI'sofplans;eachleavecallapi out to search every API at once. Add query to find a provider or a plan by name,eachandwithsort by price for the cheapest first. Each plan holds every key of the sheet's JSON download: its ⟨14 unchanged words⟩ limits, speed, the fields it returns and its page on datacircle.dev (page). What each key means: https://datacircle.dev/fields. With api, thepagesanswerwelinksreadtheitAPI'sfrom.sheet (sheetPage) and its best page (bestPage), which ranks its providers on our benchmark. total counts everyrowplan found, and plans holds up to limit of them (10 unless you say, at most 50) from offset: page through the rest with offset.WhatWheneachnokeyplanmeans:matches,https://datacircle.dev/fieldsyou get total 0 and an empty plans list, not an error; an argument its schema doesn't allow, like an api list_apis doesn't give, is an error that says what it takes. Free, no key, read-only.
⟨380 unchanged words⟩ Words that must all appear in the provider'sorname and the plan's name read together, ignoring case andaccents.accents: \"scrappa free\" finds Scrappa's Free plans.","type":"string"},"sort":{ ⟨38 unchanged words⟩
before
—after
{"properties":{"bestPage":{"description":"The API's best page on datacircle.dev, which ranks its providers on our benchmark. Left out where it has none. Only when api is given.","format":"uri","type":"string"},"offset":{"description":"How many found plans were skipped first.","minimum":0,"type":"integer"},"plans":{"description":"Up to limit of the plans found, from offset. Empty when none matches.","items":{"additionalProperties":true,"description":"One plan of one call: a row of the sheet's JSON download, every key, with its page. What each key means: https://datacircle.dev/fields","properties":{"api":{"description":"The plan's API, its name as list_apis gives it.","type":"string"},"billing":{"description":"How you pay, like free, on-demand, monthly, one-time or contact.","type":"string"},"page":{"description":"The plan's own page on datacircle.dev.","format":"uri","type":"string"},"perThousand":{"description":"Dollars for 1,000 items on this plan, 0 on a free plan. Null where the plan has no such price.","type":["number","null"]},"plan":{"description":"The plan's name on the provider's pricing page.","type":"string"},"provider":{"description":"Who sells the call.","type":"string"},"score":{"description":"The plan's score out of 100. Null on a plan we don't score.","maximum":100,"minimum":0,"type":["number","null"]}},"required":["api","provider","plan"],"type":"object"},"type":"array"},"sheetPage":{"description":"The API's sheet on datacircle.dev: its plans and their prices. Only when api is given.","format":"uri","type":"string"},"total":{"description":"How many plans match, on every page of them. 0 when none does.","minimum":0,"type":"integer"}},"required":["total","offset","plans"],"type":"object"}⟨6 unchanged words⟩ ,"readOnlyHint":true,"title":"List theGTMAPIs"}
⟨222 unchanged words⟩ Kuaishou user videos","Kuaishou video","Bilibili profile","Bilibili user videos","Bilibili video","Amazon product" ⟨241 unchanged words⟩