Feature
Filtering & Querying
Server-side filters, sorting, and field selection.
44 providers
93 APIs
41 declared variants
Queries can be narrowed with filters, sort orders, date ranges, and sparse fieldsets. Cuts payload size and the amount of client-side post-processing an integrator has to write.
44 API providers on the APIs.io network offer filtering & querying. The highest-rated are Bugsnag, Close, Buildkite, Amazon CloudSearch, Amazon EventBridge Pipes.
Providers
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 5 Complete, well-documented, and agent-ready
BugsnagBugSnag is an application stability monitoring platform from SmartBear that helps software teams detect, di...CloseClose is an inside-sales CRM with calling, email, SMS, and WhatsApp built in. The Close API exposes leads, ...BuildkiteBuildkite is a hybrid CI/CD platform that combines a hosted control plane (pipelines.buildkite.com) with se...Amazon CloudSearchAmazon CloudSearch is a managed search service that makes it easy to set up, manage, and scale a search sol...Amazon EventBridge PipesAmazon EventBridge Pipes helps you create point-to-point integrations between event producers and consumers...
Strong 11 Solid coverage with minor gaps
Amazon RedshiftAmazon Redshift is a fast, fully managed cloud data warehouse that makes it simple and cost-effective to an...IPinfoIPinfo is an IP address data and intelligence platform that provides geolocation (country, region, city, co...Commerce LayerCommerce Layer is the headless, multi-market commerce API used by global brands to sell everywhere — web, m...Amazon X-RayAWS X-Ray is a distributed tracing service that helps developers analyze and debug production applications,...BarndoorBarndoor AI is the control plane for agentic AI, providing secure access and governance for AI agents and M...ChromaChroma (Chroma DB) is an open-source AI-native embedding database designed to make it easy to build LLM app...MediastackMediastack is a free and paid REST API by apilayer for live, historical, and blog news articles aggregated ...SportmonksSportmonks is a Dutch sports data provider (Deventer, Netherlands) delivering developer-friendly REST APIs ...CalendarificWorldwide public holidays REST API covering 230+ countries. Calendarific provides national, local, religiou...Amazon SNSAmazon Simple Notification Service (SNS) is a fully managed messaging service for both application-to-appli...BlockdaemonBlockdaemon is an institutional blockchain infrastructure company founded in 2017 by Konstantin Richter. It...
Developing 9 Usable, with meaningful gaps to close
AdaptAdapt (adapt.io) is a B2B lead intelligence and sales acceleration platform that provides a database of 250...Adafruit IOAdafruit IO is a cloud Internet of Things platform from Adafruit Industries built for makers, hobbyists, st...HumaansHumaans is a London-headquartered modern HRIS (Human Resources Information System) for fast-growing, distri...MeilisearchMeilisearch is an open source, lightning-fast search engine API that brings AI-powered hybrid search to sit...KnitKnit is a unified API platform for B2B products, AI agents, and MCP clients, providing integrations infrast...arXivarXiv is the open-access e-print repository operated by Cornell Tech, hosting more than two million preprin...NominatimNominatim is an open-source (BSD-2-Clause) search engine for OpenStreetMap data, supporting forward geocodi...Apache NutchApache Nutch is a highly extensible and scalable open-source web crawler software project built on Apache H...Apache SolrApache Solr is an open-source enterprise search platform built on Apache Lucene. It provides distributed in...
Thin 13 Limited public surface area
TypesenseTypesense is a fast, typo-tolerant, open-source search engine designed for developer productivity. It provi...PhonelyPhonely is an AI voice agent platform that answers business phone calls in real time with large-language-mo...IEEE XploreIEEE Xplore is the authoritative technical library operated by the Institute of Electrical and Electronics ...GutendexGutendex is a simple, self-hosted JSON-based web API for serving book catalog information from Project Gute...Youkiyouki is an open source container runtime written in Rust that implements the OCI runtime specification as ...TrinoTrino is an open-source, distributed SQL query engine built for lightning-fast analytics over large, hetero...Ariba Guided BuyingSAP Ariba Guided Buying provides a consumer-like shopping experience for enterprise procurement, enabling e...Amazon Application Discovery ServiceAmazon Application Discovery Service helps enterprise customers plan application migration projects by auto...Microsoft Entity FrameworkMicrosoft Entity Framework is an object-relational mapping (ORM) framework for .NET developers enabling dat...Lex MachinaLex Machina is a legal analytics platform owned by LexisNexis that transforms raw court documents and docke...Bored APIThe Bored API is a free, open-source, no-authentication public API that serves suggestions for things to do...Apache MahoutApache Mahout is an open-source framework for building scalable machine learning applications. The project ...Apache RocketMQApache RocketMQ is a distributed messaging and streaming platform with low latency, high performance, and r...
Emerging 3 Early or largely undocumented
JSONPlaceholderJSONPlaceholder is a free, no-auth fake REST API for prototyping, tutorials, and testing. It exposes six re...Revel SystemsRevel Systems is a cloud iPad-based POS for restaurants and retailers. The Revel Open API exposes products,...Bloomberg Query Language (BQL)Bloomberg Query Language (BQL) is a proprietary query language for accessing, filtering, aggregating, and c...
Minimal 3 Almost no public developer surface
AlternativeToAlternativeTo is a crowdsourced software discovery platform that helps users find alternatives to software ...Descartes LabsDescartes Labs was a Santa Fe, New Mexico geospatial intelligence company founded in 2014 as a spin-out fro...Punk APIPunk API is a free, no-auth REST API exposing BrewDog's "DIY Dog" open-source beer recipe collection — 325 ...
What Providers Actually Declared
This feature is a canonical term. These are the free-text strings
providers wrote in their own apis.yml that map onto it.
Account activities log with type filteringBatch retry API for failed jobs with optional state filteringCase Query API with filtering by participants, dates, events, resolutions, findings, remedies, and damagesCategory FilteringCollaborative FilteringConfigurable URL FilteringContent FilteringContext FilteringCountry And Layer FilteringDate-Range FilteringDynamic filteringEvent FilteringFaceted SearchFaceted search and filteringFederated QueryField FilteringField-Lookup FilteringFilters, Includes, Field SelectionGeosearch and faceted searchGlobal Query FiltersHoliday Type FilteringIncremental sync with updated_after filteringMessage FilteringMetadata FilteringMulti-dimensional filteringPlatform FilteringQuery FilteringRecipe-Oriented Query FiltersRich FilteringRich filtering operators ($in, $nin, $gt, $gte, $lt, $lte, $or) on most collectionsSeccomp FilteringSecurity Universe FilteringSensitive data filteringSpam filtering on inbound callsTag-based filtering and organization of discovered assetsTagging across resources; sparse fieldsets; filtering, sorting, pagination, and include parameters per JSON:APITechnographic filtering (technology stack) and exact-title matchingToken Pricing & Metadata API (Beta) with tag-based filteringTrace Filtering and GroupsVector service for tabular and geospatial feature tables with property filtering, `ilike` wildcards, and ipyleaflet visualisation
Showing 40 of 41 declared variants
Work with this as data
Every feature here is available over the APIs.io API and to AI agents over MCP. Features is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.