emerging · 1.9 market industry

Historical

Score 20.5 / 100 100 providers 45 APIs Search apis.io →
Variants seen in the corpus: Historicalhistorical

Providers using this tag (100)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 4 Complete, well-documented, and agent-ready
Financial Modeling PrepFinancial DataMarket DataStocksQuotes10 APIs72.8PolygonFinanceFintechMarket DataStocks12 APIs71.58x8TelecommunicationsUnited StatesCPaaSUCaaS36 APIs67.1Tomorrow.ioWeatherForecastClimateRisk10 APIs66.6
Strong 3 Solid coverage with minor gaps
FactsetFinancialFinancial DataInvestment AnalyticsMarket Data460 APIs64.8KaikoWeb3CryptoMarket DataInstitutional8 APIs57.5DatadogAnalyticsDashboardsMonitoringPlatform290 APIs57.1
Developing 19 Usable, with meaningful gaps to close
MISOEnergyUnited StatesElectricityEnergy Markets38 APIs54.0CryptoCompareCryptocurrencyMarket DataReference RatesNews18 APIs53.8Azure MapsGeocodingGeospatialLocationMaps11 APIs48.4USGS Water ServicesWaterStreamflowGroundwaterWater Quality43 APIs48.2Flightradar24AviationFlight TrackingReal-TimeAircraft16 APIs46.8TiingoFintechMarket DataStocksCrypto6 APIs46.8ChartbeatCompanySoftware-as-a-ServiceAnalyticsContent Analytics5 APIs43.4ButlrCompanySensorsOccupancyPeople Sensing2 APIs43.0HipChatChatMessagingCollaborationTeam Communication2 APIs42.7Chronicling AmericaNewspapersArchivesLibrary of Congress6 APIs41.9Trading EconomicsEconomic IndicatorsInterest RatesMacroeconomicsFinancial Data7 APIs41.9Weather UndergroundWeatherPersonal Weather StationsHyperlocalObservations4 APIs41.8CurrencyAPIForeign ExchangeCurrencyExchange RatesFX6 APIs41.7XigniteFinancialMarket DataStocksReal-Time23 APIs40.4NOAA — National Oceanic and Atmospheric AdministrationWeatherClimateOceanSpace Weather24 APIs40.1Library of CongressLibraryGovernmentCongressLegislative Data25 APIs39.9Tomorrow.ioWeatherClimateForecastHistorical Weather11 APIs39.9WeatherbitWeatherForecastingHistorical DataAir Quality22 APIs39.7The Odds APIBettingOddsSportsScores6 APIs39.3
Thin 9 Limited public surface area
KalshiPrediction MarketsEvent ContractsExchangeCFTC21 APIs39.1PolymarketPrediction MarketsDeFiPolygonOrder Book11 APIs38.2DatalasticVessel TrackingMaritimeAISShips6 APIs37.4Polygon.ioFintechMarket DataStocksOptions8 APIs37.4AspenTechIndustrial IoTProcess OptimizationManufacturingEnergy6 APIs35.9MarineTrafficAISMaritimeShippingVessel Tracking8 APIs35.8MorphoDeFiLendingBorrowingCollateral7 APIs34.1FDICBankingFinanceGovernmentFDIC7 APIs34.0TruliaAcquiredListingsNeighborhoods2 APIs33.8
Emerging 8 Early or largely undocumented
PostmatesAcquiredCouriersDeliveryFood Delivery2 APIs25.1IEX CloudFintechMarket DataStocksReference1 API24.1AutotraderAutomotiveVehiclesMarketplaceDealer13 APIs22.7YummlyRecipesFoodCookingRecipe Search3 APIs18.8IntegrationOSAgent InfrastructureAI AgentsConnectors1 API18.6EvalsEvalsLLM EvaluationAI QualityBenchmarks20 APIs15.8API SpecificationsAPI SpecificationSpecification LanguagesAPI DesignContracts13 APIs15.4NDBC — National Data Buoy CenterNOAAMarineBuoysOcean5 APIs12.8
Minimal 57 Almost no public developer surface
Collision (now Web Summit Vancouver)ConferencesEventRebrand10.4MayStreetFinancialMarket DataReal-TimeTrading2 APIs7.8DigitalkCompanyEnterprise SoftwareDeveloper ToolsProgramming Languages6.4KiwilogicCompanyConversational AIChatbotsNatural Language Processing5.7KAR Auction Services (Historical)AuctionsAutomotiveRemarketing5.5ConAgra FoodsAliasBranded FoodsCPGConsumer Packaged Goods5.3opendata.rks-gov.net (Kosovo Open Data) [offline]Open DataCKANData CatalogGovernment Data1 API5.3Aelita SoftwareCompanySystems ManagementActive DirectoryMicrosoft Exchange5.0ArrowPointCompanyInfrastructureNetworkingContent Delivery5.0ArrowPoint CommunicationsCompanyNetworkingLoad BalancingContent Delivery5.0BackWebCompanyEnterprise SoftwarePush TechnologyContent Delivery5.0BarneyscanCompanyScannersColor ImagingGraphic Arts5.0BebopCompanyAcquiredEnterprise SoftwareApplication Development5.0Cabletron SystemsCompanyNetworkingEthernetNetwork Management5.0CAD SolutionsCompanyCADComputer-Aided DesignEngineering Software5.0CelequestCompanyBusiness IntelligenceAnalyticsOperational Intelligence5.0ClementineCompanyAcquiredDefunctEnterprise Communication5.0CounterpaneCompanyCybersecurityManaged Security ServicesSecurity Monitoring5.0Cruise TechnologiesCompanyDefunctThin ClientWireless5.0Cullinet SoftwareCompanyDatabaseMainframeEnterprise Software5.0Dirig SoftwareCompanyDefunctApplication Performance ManagementSystems Management5.0eEye Digital SecurityCompanyCybersecurityVulnerability ManagementSecurity5.0FrameCompanySoftwareDesktop PublishingTechnical Documentation5.0IllustraCompanyEnterprise SoftwareDatabaseObject-Relational Database5.0IntrawareCompanySoftware DeliveryElectronic Software DeliverySoftware License Management5.0Keurig Green MountainBeveragesCoffeeConsumer Goods5.0Kiva SoftwareCompanyApplication ServerJavaMiddleware5.0L BrandsRetailSpecialty RetailFortune 500Personal Care5.0Lattice EnginesCompanyAcquiredPredictive MarketingAccount Based Marketing5.0Legato SystemsCompanyEnterpriseStorageData Storage5.0LendUp GlobalCompanyFinancial-ServicesFintechLending5.0LorillardAcquiredConsumer GoodsManufacturing5.0SonanticVoiceText-to-SpeechEmotive AIAcquired5.0Newell RubbermaidConsumer GoodsFortune 5004.4BondEmbedded FinanceCardsIssuingPayments4.3CST BrandsConvenience RetailFuel RetailAcquired4.1L-3 CommunicationsDefenseAerospaceC3ISRGovernment3.9IMS Health HoldingsHealthcareHealth DataPharmaceuticalsLife Sciences2.5ApieronCompanyMedical DevicesHealthcareRespiratory2.2Colfax Corporation (Historical)Fabrication TechnologyIndustrialMedical Technology2.2CES InternationalCompanyUtilitiesEnergyOutage Management2.1FaxSavCompanyFaxInternet FaxMessaging1.8Level 3 CommunicationsTelecommunicationsInternet Service ProviderFiberNetworking1.8Leucadia NationalHolding CompanyInvestment BankingFinancial-Services1.5Newfield ExplorationOil and GasEnergyFortune 10001.5Broadband AccessCompanyInfrastructureNetworkingBroadband0.6Cyneta NetworksCompanyNetworkingWirelessTelecommunications0.6DestineerCompanyHardtechTelecommunicationsNetworking0.6Doelz NetworksCompanyNetworkingData CommunicationsTelecommunications0.6Equipe CommunicationsCompanyTelecommunicationsNetworking EquipmentATM0.6FORE SystemsCompanyNetworkingATMTelecommunications0.6Latitude CommunicationsCompanyConferencingWeb ConferencingVoice Conferencing0.6Lightera NetworksCompanyHardtechOptical NetworkingTelecommunications0.6Lightspeed InternationalCompanyTelecommunicationsVoice over IPNetworking0.6Bank of New YorkBankingFinanceInstitutional Banking0.5TCF Financial CorporationBankingRegional BankDefunctMerger0.3Solid (Solid.fi)Banking as a ServiceEmbedded FinancePaymentsCards0.1

APIs with this tag (45)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 3 Complete, well-documented, and agent-ready
8x8 Analytics for Contact Center Historical Metrics API8x8 Analytics for Contact Center Historical Metrics API for querying historical queue, agent and interactio...67.1Work Analytics Historical8x8 Work Analytics Historical API for querying historical unified communications call and meeting records a...67.1Tomorrow.io Historical Weather APIRetrieve historical weather observations and monthly climate normals for any point or polygon on Earth usin...66.6
Strong 3 Solid coverage with minor gaps
Factset Historical APIThe Historical API from Factset — 4 operation(s) for historical.64.8Kaiko REST APIREST endpoints for trades, order books, OHLCV, market reference, trade flows, FX rates, and derivatives acr...57.5Datadog Historical APIThe Historical API from Datadog — 3 operation(s) for historical.57.1
Developing 22 Usable, with meaningful gaps to close
MISO Historical APIThe Historical API from MISO — 1 operation(s) for historical.54.0CryptoCompare Historical APIHistorical OHLCV candle data by day, hour, and minute.53.8Azure Maps Weather APIProvides current weather conditions, hourly and daily forecasts, severe weather alerts, weather along a rou...48.4USGS Groundwater Levels ServiceProvides historical manually-recorded groundwater level measurements from USGS wells and monitoring sites. ...48.2USGS Statistics ServiceRetrieves daily, monthly, or annual statistics (mean, minimum, maximum, median, and percentiles P05–P95) co...48.2Flight SummariesReturns synopses of individual flights including key event timings and locations such as actual takeoff and...46.8Flight TracksReturns the full positional track of a specific flight identified by its FR24 flight ID. Provides a time-or...46.8Historical Flights FullReturns full historical aircraft flight movement records for a given time window, combining positional data...46.8Historical Flights LightProvides historical aircraft positional data using Unix timestamp ranges. Returns lightweight position reco...46.8Tiingo End-of-Day APIDaily OHLCV history for 100,000+ US equities and ETFs back to 1962, with split and dividend adjustments.46.8Chartbeat Historical API (Advanced Queries)Summary historical traffic data for a site over custom date ranges, via an asynchronous submit / status / r...43.4Butlr Reporting APIThe Butlr Reporting API is a RESTful, time-series occupancy API for historical space-utilization analysis. ...43.0Trading Economics Historical APIThe Historical API from Trading Economics — 5 operation(s) for historical.41.9Weather Underground Historical APIHistorical PWS observations and daily summaries41.8CurrencyAPI Historical APIEnd-of-day historical exchange rates back to 1999.41.7Xignite Global Historical APIEnd-of-day and historical equity prices including historical quote ranges, chart bars, adjustment factors, ...40.4NCEI Access Data Service (v1)The National Centers for Environmental Information (NCEI) Access Data Service is the modern, token-free rep...40.1NCEI Climate Data Online (CDO) v2 APIThe legacy Climate Data Online v2 REST API exposes datasets, datatypes, stations, locations, data categorie...40.1Chronicling America APIThe Chronicling America API provides access to the historic American newspapers collection digitized by the...39.9Tomorrow.io Historical APIHistorical weather data for a point or polygon, up to 20 years back.39.9Weatherbit Historical Weather APIHigh-resolution historical weather data backed by over 120,000 weather stations and gridded datasets. Inclu...39.7The Odds API Historical APIHistorical odds and event snapshots.39.3
Thin 7 Limited public surface area
Kalshi historical APIThe historical API from Kalshi — 7 operation(s) for historical.39.1Polymarket Data APIHistorical and analytical data API exposing trades, prices, volumes, holders, and time-series aggregates ac...38.2Datalastic Historical APIPast AIS positions for vessels and zones.37.4AspenTech Historical APIHistorical time-series data access35.9MarineTraffic Past Events APIMarineTraffic Past Events API provides access to historical vessel movements and events, enabling retrospec...35.8Morpho Historical Data APIGraphQL time-series queries for historical market and vault state — query historicalState on markets or vau...34.1FDIC Historical APIHistorical data from 1934 onward regarding financial institutions.34.0
Emerging 8 Early or largely undocumented
Autotrader Historic Valuations APIProvides access to historical vehicle valuation data, enabling trend analysis and retrospective pricing res...22.7Yummly Metadata API (Historical)DEPRECATED / HISTORICAL. The Metadata endpoints (GET http://api.yummly.com/v1/api/metadata/{key}) returned ...18.8Yummly Recipe Details API (Historical)DEPRECATED / HISTORICAL. The Get Recipe endpoint (GET http://api.yummly.com/v1/api/recipe/{recipe-id}) retu...18.8Yummly Recipe Search API (Historical)DEPRECATED / HISTORICAL. The Search Recipes endpoint (GET http://api.yummly.com/v1/api/recipes) returned re...18.8HumanloopHumanloop was a development platform for LLM applications, describing itself as having been "the first deve...15.8API BlueprintAPI Blueprint is a Markdown-based specification language for describing web APIs, originally created by Api...15.4WSDL / SOAPThe Web Services Description Language (WSDL) is the historical XML-based interface definition language for ...15.4NDBC Historical Archive ServiceProvides quality-controlled historical observations from NDBC stations organized as annual files (prior yea...12.8
Minimal 2 Almost no public developer surface
MayStreet Market Data Lake Query APIQuery access to MayStreet's 20+ petabyte Market Data Lake of historical exchange data captured as PCAP and ...7.8RKS Open Data CKAN Action API (historical)Historical CKAN Action API for Kosovo's national open-data portal. Platform confirmed as CKAN ~2.7 from arc...5.3

Score breakdown

Frequency
57.6
log-scaled weighted occurrences
Breadth
2.7
spread across providers
Quality lift
23.8
mean composite of providers using it
Cohesion
4.5
strength of nearest seed neighbor

Related tags

Forecast 7 co-occurrences Enterprise Software 12 co-occurrences Weather 8 co-occurrences Telecommunications 12 co-occurrences Options 7 co-occurrences Stocks 6 co-occurrences Futures 5 co-occurrences Markets 5 co-occurrences

Where this tag comes from

Api tag45
Provider tag66
Openapi tag13
Openapi op tag33

Cohort brief

Auto-generated

The 100 providers in the APIs.io catalog tagged Historical, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
100
all scored
Mean Kin Score
19.9
-0.8 vs catalog 20.7
Mean Agent Readiness
10
+0.3 vs catalog 9.7
Spread
0.1–72.8
median 5.2 · σ 20.9
How the 100 split by band
Exemplar 4Strong 3Developing 19Thin 9Emerging 8Minimal 57
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Operational Transparency 13.2 11.3 +1.9 100
Contract Quality 19.3 17.5 +1.8 100
Discoverability 60.7 60.4 +0.3 100
Contract Governance 6.2 6.4 -0.2 100
Developer Ergonomics 16 17.9 -1.9 100
Access Clarity 18.7 22.3 -3.6 100

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 12% 16% -4
MCP server (first-party) 4% 7% -3
Agent Skills 0% 0% 0
OAuth scopes 6% 9% -3
Security 62% 88% -26
Arazzo workflows 4% 2% +2
Governance rules 25% 13% +12

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Financial Modeling Prep 72.8
  2. 2 Polygon 71.5
  3. 3 8x8 67.1
  4. 4 Tomorrow.io 66.6
  5. 5 Factset 64.8
  6. 6 Kaiko 57.5
  7. 7 Datadog 57.1
  8. 8 MISO 54
  9. 9 CryptoCompare 53.8
  10. 10 Azure Maps 48.4
Top by Agent Readiness
  1. 1 CryptoCompare 60.2
  2. 2 Polygon 57.3
  3. 3 Factset 52.8
  4. 4 Financial Modeling Prep 44
  5. 5 8x8 43.3
  6. 6 Datadog 38.3
  7. 7 Flightradar24 32.7
  8. 8 MISO 31.5
  9. 9 Trading Economics 30
  10. 10 CurrencyAPI 28.7
All 100 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 25 August 2026, across 26891 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

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Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

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This tag 
curl "https://apis.io/api/v1/tags/historical"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/historical"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/historical/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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