Open Source SaaS Alternatives, Self-Hosted Software & COSS Benchmarks

88 projects

Data APIs & DatasetsCommercial competitors →Market trends →Hero & design styles →

Open-source projects · GitHub Stars
Project	Tagline	License & Stack	Stars	Visits	Commercial
Gecko VisionMCPGeckoVision/gecko-surfStay in control of every fact	Stay in control of every fact	Apache	GitHub	<5K	—
Agent-TrustCOSSremangazo/AgentTrustKnow Your Agent Before You Transact	Know Your Agent Before You Transact	—	GitHub	<5K	$29/mo
Art SearchCOSSddsky/art-search-api-clientsDiscover Art with Semantic AI Search	Discover Art with Semantic AI Search	—	GitHub	<5K	$9/mo
FlightFinderCOSSdisclaimer8/flightfinderAviation safety data on every aircraft, airline and airport	Aviation safety data on every aircraft, airline and airport	—	GitHub	—	$49/mo
PostalcodesCOSSPabloCirre/postalcodes-info-open-dataWorld Postal Code, ZIP Code & Postcode Lookup	World Postal Code, ZIP Code & Postcode Lookup	—	GitHub	—	$31/mo
Ausdata AIausdataai/ausdata2Intelligence.	Intelligence.	—	GitHub	—	—
JeleoCOSSwtronk/jeleo-reverse-geo-sdkGeolocation API & Batch Geocoding Platform	Geolocation API & Batch Geocoding Platform	—	GitHub	—	$10/mo
Japan Seasons APIMCPko-syun/japan-seasons-apiCherry blossom & foliage API for AI agents and developers	Cherry blossom & foliage API for AI agents and developers	—	GitHub	—	$29/mo
KatzillaMCPcodeislaw101/katzillaEvery US government dataset. One API. Every response cited.	Every US government dataset. One API. Every response cited.	MIT	GitHub	—	$49/mo
MedDataMCPanthesiallc/meddata-mcpDrug and supplement data, served clean.	Drug and supplement data, served clean.	MIT	GitHub	—	$29/mo
ENAIHwarrenwoolf/encyclopedia-of-ai-hallucinationsENcyclopedia of AI Hallucinations	ENcyclopedia of AI Hallucinations	—	GitHub	—	—
mercatorCOSSmercator-blue/mercator-sdkEarth model output as tiles , decodable in any WebGL shader.	Earth model output as tiles , decodable in any WebGL shader.	Apache	GitHub	—	$31/mo
ZooDataMCPSerendipityOneInc/ZooData-SkillsThe Data Layer for AI Agents	The Data Layer for AI Agents	—	GitHub	—	$29/mo
ExodataMCPoiwn/exodataExoplanet Archive	Exoplanet Archive	—	GitHub	—	—
DomScanMCPestevecastells/domscan-sdkTurn public internet signals into decisions	Turn public internet signals into decisions	MIT	GitHub	—	—
ReestriMCPSosoPkhakadze/reestri-claude-pluginThe company registers of Georgia, Armenia and Moldova, as data you can cite.	The company registers of Georgia, Armenia and Moldova, as data you can cite.	—	GitHub	—	—
GOAL APIMCPgoal-api/goal-api-jsThe football data API built for developers.	The football data API built for developers.	MIT	GitHub	—	$19/mo
Magpie Data APImagpieiq/magpie-ecommerce-data-apiTurn marketplace data into decisions—and give your AI better context.	Turn marketplace data into decisions—and give your AI better context.	—	GitHub	—	—
Ecommerce Data APIMCPecommercedataapi/ecommerce-data-apiAmazon product research data, one unified API	Amazon product research data, one unified API	—	GitHub	—	$8/mo
Vessel Class FinderCOSStsolman/vessel-class-finderVessel classification data as a clean REST API	Vessel classification data as a clean REST API	—	GitHub	—	$53/mo
PolyEdgeCOSSPolyEdgeDev/polyedge-stream-benchmarkUltra-Low-Latency Polymarket Mempool Trade Streaming & Real-Time On-Chain Analytics API.	Ultra-Low-Latency Polymarket Mempool Trade Streaming & Real-Time On-Chain Analytics API.	—	GitHub	—	$49/mo
CurrencyStackCOSScurrencystack/currencystack-phpReliable currency exchange rates for your business.	Reliable currency exchange rates for your business.	—	GitHub	—	$9/mo
Theofficejoshkmartinez/Office-Quotes-as-a-ServiceBears. Beets. Battlestar Galactica.	Bears. Beets. Battlestar Galactica.	—	GitHub	—	—
NasapictureGDKeller/nasa-picture-proxyAstronomy Picture of the Day	Astronomy Picture of the Day	—	GitHub	—	—
Data-covid19JulienGdnr/covid19Just Another Covid19 Data Vizualisation project	Just Another Covid19 Data Vizualisation project	—	GitHub	—	—
SubsetCOSSsubsetsio/subsets-connectorsA search engine for the world’s statistics.	A search engine for the world’s statistics.	—	GitHub	—	—
Amentum API Portalamentumspace/amentum-cliSelf-service access to scientific web APIs	Self-service access to scientific web APIs	—	GitHub	—	—
VisitorAPICOSSvisitorapi/visitorapi.jsFast and reliable API to detect visitor location and device info	Fast and reliable API to detect visitor location and device info	ISC	GitHub	—	$7/mo

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