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 7 Complete, well-documented, and agent-ready

Snowflake database APIThe database API from Snowflake — 12 operation(s) for database.81.2 Dataverse API (Common Data Service)OData v4.0 compliant Web API for Microsoft Dataverse, providing RESTful data storage, business logic, and e...76.4 Oracle Platforms Database APIThe database API from Oracle Platforms — 319 operation(s) for database.69.5 ClickHouse HTTP InterfaceHTTP interface (default port 8123, HTTPS 8443) for executing SQL queries against ClickHouse. Supports SELEC...68.7 Factset Database APIThe Database API from Factset — 24 operation(s) for database.67.7 GitHub Git Database APIThe GitHub Git Database API provides low-level access to Git objects (blobs, commits, refs, tags, and trees...67.3 Netlify Database APIThe database API from Netlify — 14 operation(s) for database.67.3

Strong 14 Solid coverage with minor gaps

Janssen Config APIThe Janssen Config API is the OAuth-protected administrative REST API for every Janssen Server and Gluu Fle...63.5 OCI Autonomous Database REST APIREST APIs for provisioning, managing, and operating Oracle Autonomous Databases including serverless and de...60.2 OCI MySQL HeatWave APIAPIs for managing MySQL Database Service with HeatWave in-memory query accelerator on Oracle Cloud Infrastr...60.2 Oracle Database APIThe database API from Oracle — 308 operation(s) for database.60.2 Oracle Database REST APIsREST APIs for Oracle Autonomous Database.60.2 Viam Database APIDirect database connection (MongoDB) for advanced analytics.60.2 IBM Cloud Databases for ElasticsearchFully managed Elasticsearch service for full-text search, log analytics, and application monitoring on IBM ...60.0 IBM Cloud Databases for MongoDBFully managed MongoDB document database service with built-in high availability, automated backups, and sca...60.0 IBM Cloud Databases for PostgreSQLManaged PostgreSQL database service.60.0 IBM Cloud Databases for RedisFully managed Redis in-memory data store for caching, session management, and high-speed data access on IBM...60.0 IBM CloudantFully managed distributed JSON document database built for the cloud with high availability, durability, an...60.0 Nanonets External Integrations APIList external integrations connected to a Nanonets account (Postgres, MySQL, MSSQL, MongoDB, and other data...58.7 TiDB MCP ServerOfficial Model Context Protocol server maintained by PingCAP that exposes a TiDB or TiDB Cloud database to ...58.3 Data Management for VMware Tanzu REST APIREST API for Data Management for VMware Tanzu providing database-as-a-service capabilities for provisioning...54.3

Developing 42 Usable, with meaningful gaps to close

Couchbase Database APIEndpoints for retrieving database information.54.0 TileDB Storage Platform API (v1)The primary TileDB Cloud REST API. 168 operations across arrays, groups, assets, files, notebooks, UDFs, ta...53.3 TileDB Storage Platform API (v2)The v2 routes of the TileDB Cloud REST API — 21 operations concentrated on groups, assets, array metadata, ...53.3 Azure Database for MySQL Databases APICreate, list, retrieve, and delete databases hosted on a MySQL Flexible Server. Manage character sets and c...52.6 YugabyteDB Aeon REST APIProgrammatic management API for YugabyteDB Aeon, the fully managed cloud DBaaS. Deploy and manage clusters ...52.3 SolarWinds Database Performance Analyzer APIAPI for database monitoring and performance analysis.52.2 ScyllaDB Admin REST APINode-level administrative REST API exposing endpoints to check and update configuration, retrieve cluster-l...51.9 SpecterOps Database APIThe Database API from SpecterOps — 1 operation(s) for database.51.8 Oracle Database API for MongoDBMongoDB-compatible API for Oracle Database.50.6 Firebase Android APIsFirebase SDKs and APIs for Android app development.49.8 Agno Database APIThe Database API from Agno — 2 operation(s) for database.48.5 Google Cloud BigQuery APIBigQuery is a fully managed, petabyte-scale analytics data warehouse that lets you run analytics over vast ...48.4 Nutanix Database Service APIREST API for Nutanix Database Service (NDB) providing database-as-a-service capabilities for PostgreSQL, My...47.9 SAP HANA SQL APISQL interface for querying and managing data in SAP HANA databases.46.3 Ditto SDKMulti-platform embeddable SDK for peer-to-peer and cloud-synced data storage. Supports Swift, Kotlin, Flutt...45.9 Result BackendHosted application backend consumed through the first-party @resultdev/sdk client and administered with @re...45.9 Convex Server SDKThe Convex Server SDK (convex/server) is the TypeScript library for defining backend logic deployed on Conv...44.5 TimeFusion (Timeseries Engine)Rust-based timeseries database for events, logs, traces, and metrics using a PostgreSQL dialect over S3 / D...44.5 KurrentDB gRPC APIThe primary protocol for KurrentDB. The published protocol buffer definitions cover the v2 streams service ...44.3 Oracle APEX REST Data Services APIRESTful API for Oracle APEX applications enabling data access and manipulation through REST endpoints.44.3 Oracle APEX SQL Workshop APIAPI for accessing SQL Workshop functionality programmatically.44.3 Oracle ORDS Database APIREST API for Oracle Database management and monitoring operations through ORDS, including pluggable databas...44.3 Tessell Database APIThe Database API from Tessell — 6 operation(s) for database.44.3 Neo4j Query APIThe Neo4j Query API enables the execution of Cypher statements against a Neo4j server through HTTP requests...43.9 Discogs Database APIAccess Discogs database: artists, releases, masters, labels, and search.43.2 Amazon DynamoDBFast and flexible NoSQL database service for any scale.43.1 Amazon RDSManaged relational database service for MySQL, PostgreSQL, Oracle, SQL Server, and MariaDB.43.1 SAP SQL Anywhere HTTP Web ServicesSAP SQL Anywhere includes a built-in HTTP web server that exposes database objects as OData and REST web se...42.8 AlgoSeek ArdaDB Query ServiceManaged ClickHouse-based columnar cloud database (AWS us-east-1) pre-loaded with two petabytes of AlgoSeek ...42.7 Apache Nutch Database APIQuery the CrawlDB and FetchDB42.7 Supabase Database APIManage database configurations, migrations, and extensions.42.5 Supabase Realtime APIThe Supabase Realtime API provides WebSocket-based subscriptions for real-time data changes from PostgreSQL...42.5 Happyrobot Twin MCP ServerFirst-party remote MCP server over the customer's Twin database — 9 published tools covering schema introsp...42.3 Apache Superset Database APIThe Database API from Apache Superset — 8 operation(s) for database.42.1 SAP HANA XS Advanced APIAPIs for building analytics applications on SAP HANA XS Advanced platform.41.7 AACT DatabaseAACT (Aggregate Analysis of ClinicalTrials.gov) is a publicly available relational database of all Clinical...40.8 Deno KV APIDeno KV is a key-value database built directly into the Deno runtime and available as a globally distribute...40.8 Screenpipe Database APIDirect database access40.8 Redis CoreCore Redis commands and data structure operations. Redis supports strings, hashes, lists, sets, sorted sets...40.6 Spring Data REST APIExposes Spring Data repositories as hypermedia-driven RESTful resources automatically. Supports HAL, collec...40.0 Apache CouchDB Database APIDatabase management operations39.8 Tableau Hyper APICreate, read, update, and delete data in .hyper files for use in Tableau Desktop and Server with high-perfo...39.8

Thin 41 Limited public surface area

OpenStack Database (Trove) APITrove is the OpenStack Database-as-a-Service that provisions and manages database instances (MySQL, Postgre...38.4 Triplit HTTP APIRESTful HTTP API for interacting with a Triplit sync server, supporting fetch, insert, bulk-insert, update,...37.8 Kinetica Database REST APIPOST-only JSON REST API exposed by every Kinetica deployment on port 9191. Endpoints cover SQL execution (/...37.6 Kinetica Toolbelt MCP ServerHosted Model Context Protocol server that gives any MCP-speaking agent a single endpoint onto a Kinetica da...37.6 CrateDB HTTP SQL EndpointCrateDB's native developer interface: a JSON-over-HTTP SQL endpoint. Clients POST a JSON body ({"stmt": ".....37.4 Airlabs Aircraft Fleet Database APIAccess global aircraft fleet data with registration numbers, ICAO hex codes, manufacturer serial numbers, a...37.1 Airlabs Airlines Database APILook up airline information including IATA and ICAO codes, callsign, country, fleet size, average fleet age...37.1 Airlabs Airports Database APIAccess a comprehensive global airport database with IATA and ICAO codes, coordinates, elevation, runway cou...37.1 Airlabs Cities Database APIRetrieve city data including IATA city codes, coordinates, country, timezone, population, and multilingual ...37.1 Airlabs Routes Database APIQuery airline routes between airports with departure and arrival times in local and UTC, operating days of ...37.1 SpacetimeDB HTTP APIThe SpacetimeDB HTTP API lets clients and tools interact with SpacetimeDB databases: publish and delete dat...36.8 BRYTER Database APIREST API for reading and synchronizing BRYTER database data across platforms and external systems. Authenti...36.6 EdgeDB EdgeQL HTTP APIExecutes EdgeQL queries over HTTP against a Gel/EdgeDB instance. Supports GET and POST requests with query,...36.3 EdgeDB GraphQL APIProvides a GraphQL endpoint for querying an EdgeDB/Gel instance, supporting queries, mutations, and introsp...36.3 Entity Framework 6The mature and stable ORM for .NET Framework with Code First, Database First, and Model First workflows.36.1 Entity Framework CoreA lightweight, extensible, open source and cross-platform ORM for .NET. Supports SQL Server, PostgreSQL, My...36.1 Microsoft Access Database Engine APIAPI for programmatic access to Microsoft Access databases through various interfaces including ODBC, OLE DB...35.3 TiKV Java ClientThe official Java client for TiKV. Supports raw key-value operations and transactional operations via gRPC....35.1 TiKV Python ClientThe official Python client for TiKV supporting raw and transactional key-value operations.35.1 TiKV Rust ClientThe official Rust client for TiKV providing raw and transactional key-value access to TiKV clusters.35.1 QuickNode Database APIManage key-value namespaces (databases).34.4 Apache Cassandra CQL Native ProtocolCassandra Query Language (CQL) is the primary interface to Apache Cassandra. Clients speak the binary CQL n...34.2 Cassandra Document API (Stargate)Schemaless Document API that stores JSON documents in Cassandra, offering a MongoDB-like developer experien...34.2 Cassandra GraphQL API (Stargate)GraphQL endpoint for Cassandra, enabling flexible, typed queries and mutations against Cassandra tables thr...34.2 Cassandra gRPC API (Stargate)High-performance gRPC API for Cassandra through Stargate, designed for low-latency service-to-service commu...34.2 Cassandra REST API (Stargate)HTTP/JSON REST API for Cassandra provided by the Stargate data gateway. Enables CRUD operations and SQL-lik...34.2 HashiCorp Vault Database APIDatabase dynamic credentials secrets engine33.4 StepZen GraphQL APIGraphQL API platform for connecting to REST, databases, and other backends, automatically generating a Grap...33.1 Spring Data JPASimplifies the development of creating a JPA-based data access layer. Reduces boilerplate code and provides...32.7 NJU Table (南大表格) — SeaTable deploymentAn institution-hosted SeaTable 6.1.9 enterprise-edition deployment offering collaborative tables to NJU use...32.6 Knack REST APIResource-oriented REST API for managing records in Knack applications. Supports create, retrieve, update, a...32.5 Inspur Cloud RDS for MySQL APIREST API for Inspur Cloud's managed MySQL relational database service — instance lifecycle, instance classe...32.0 Inspur Cloud Time Series Database (TSDB) APIREST API for Inspur Cloud's managed time-series database — instance lifecycle, parameter configuration, dat...32.0 SurrealDB HTTP REST APIThe SurrealDB HTTP REST API provides stateless access to SurrealDB instances over standard HTTP. It support...31.9 Vert.x SQL ClientA high-performance reactive SQL client for Vert.x supporting PostgreSQL, MySQL, Microsoft SQL Server, IBM D...31.4 Spin SQLite APIThe Spin SQLite API provides Spin components with access to an embedded relational database. Components can...31.1 Fauna Event Feeds APIThe Fauna Event Feeds API provides a polling-based approach to change data capture, complementing the real-...29.2 Fauna Event Streaming APIThe Fauna Event Streaming API enables real-time change data capture by maintaining an open connection to th...29.2 Fauna GraphQL APIThe Fauna GraphQL API allows developers to interact with their Fauna databases using standard GraphQL queri...29.2 Rowy Firestore DataRowy tables map directly onto Google Cloud Firestore collections. Programmatic data access is not a Rowy-sp...28.6 YGOPRODeck Database APIDatabase version and freshness information.28.3

Emerging 22 Early or largely undocumented

Aerospike REST GatewayHTTP/JSON gateway that exposes Aerospike database operations including key-value reads/writes, batch, opera...25.7 Wine Vybe Beer APIThe Wine Vybe Beer API provides access to brewery details, ABV data, beer descriptions, food pairing recomm...24.7 Wine Vybe Liquor APIThe Wine Vybe Liquor API provides access to spirits and liquor data including distillery information, tasti...24.7 Wine Vybe Wine APIThe Wine Vybe Wine API provides access to thousands of wines with data including wine regions, grape variet...24.7 MaterializeOperational data warehouse and streaming SQL database built on Differential Dataflow. Maintains incremental...24.4 Reactome database APIDatabase info queries24.3 Slick APISlick is Functional Relational Mapping (FRM) for Scala — a type-safe, composable database access library th...23.0 8base GraphQL APIThe 8base GraphQL API provides auto-generated queries, mutations, and subscriptions for every data table in...22.1 Moodle Data Manipulation API (DML)Enables safe, consistent database read and write operations across Moodle, abstracting the underlying datab...22.1 Caspio REST APIREST API for Caspio Bridge accounts providing programmatic access to tables, views, records, files, users, ...21.4 Agworld DBX (Greenbook)Label, manufacturer, ingredient, and pest database powering product selection and compliance inside Agworld...17.4 Java Database Connectivity (JDBC)API for connecting to relational databases and executing SQL queries from Java applications.17.4 JD Cloud Database (RDS) APIsJD Cloud database APIs provision and manage relational databases (MySQL, SQL Server, PostgreSQL, MariaDB), ...16.6 libpq C Client Librarylibpq is the official C application programmer's interface to PostgreSQL and the underlying library used by...15.3 PostgreSQLOpen-source relational database with advanced SQL compliance and extensibility. Client libraries available ...15.3 PostgreSQL JDBC DriverThe official Type 4 JDBC driver for PostgreSQL enables Java applications to connect to PostgreSQL using the...15.3 PostgreSQL ODBC Driver (psqlODBC)The official ODBC driver for PostgreSQL providing Open Database Connectivity for Windows, Linux, and macOS ...15.3 PostgreSQL Wire ProtocolThe PostgreSQL frontend/backend protocol is the low-level message-based protocol used by all client drivers...15.3 IBM Db2 REST ServicesNative Db2 REST services that allow applications to create, discover, execute, and manage user-defined serv...14.5 Jakarta Persistence APIThe Jakarta Persistence specification for object-relational mapping in Java applications, defining annotati...12.4 Oracle Database 11g JDBC APIJava Database Connectivity driver for connecting Java applications to Oracle 11g.12.0 SQLAlchemySQL toolkit and Object-Relational Mapping (ORM) library.11.9

Minimal 1 Almost no public developer surface

Dietagram Nutrition APIProvides access to Dietagram's extensive food database and nutritional standards for integrating nutrition ...9.4

Companies reaching this through an API (51)

These companies publish an API, specification or operation carrying “Database” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Agno Agworld Airlabs AlgoSeek Amazon Web Services (AWS) Android Apache Nutch Apache Superset APIToolkit (Monoscope) Bryter ClinicalTrials.gov Deno Discogs Factset Fauna GitHub Gluu Google Happyrobot HashiCorp Vault IBM Java JD.com (Jingdong) Microsoft Power Platform APIs Moodle Nanjing University Nanonets Neo4j Netlify Nutrition & Exercise API OpenStack Python Standard Library and Popular QuickNode Reactome Rowy SAP Business Intelligence Scala Screenpipe Snowflake SolarWinds SpecterOps Spin Spring Boot StepZen Streaming Tableau Desktop Tessell Vert.x Viam VMware

Show all 51 companies ↓

YGOPRODeck

Score breakdown

Frequency

69.1

log-scaled weighted occurrences

Breadth

4.9

spread across providers

Quality lift

42.4

mean composite of providers using it

Cohesion

24.2

strength of nearest seed neighbor

Where this tag comes from

Provider tag179

Api tag128

Openapi tag20

Openapi op tag108

Cohort brief

Auto-generated

The 169 providers in the APIs.io catalog tagged Database, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

169

all scored

Mean Kin Score

38.4

+14.5 vs catalog 23.9

Mean Agent Readiness

20.9

+8.9 vs catalog 12

Spread

5.8–71.1

median 39.8 · σ 14.5

How the 169 split by band

Exemplar 3Strong 18Developing 65Thin 47Emerging 28Minimal 8

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Developer Ergonomics	44.7	23.4	+21.3	169
Contract Quality	40.1	19.8	+20.3	169
Operational Transparency	27.7	13.9	+13.8	169
Access Clarity	37.5	26.5	+11	169
Discoverability	66.5	61.2	+5.3	169
Contract Governance	11.1	6.4	+4.7	169

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

Artifact	This cohort	Catalog	Difference
MCP server (any)	23%	10%	+13
MCP server (first-party)	24%	13%	+11
Agent Skills	0%	0%	0
OAuth scopes	16%	11%	+5
Security	98%	96%	+2
Arazzo workflows	9%	2%	+7
Governance rules	41%	14%	+27

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

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

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https://apis.io/mcp

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 →

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The distribution (Pro)

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Database

Providers using this tag (179)

APIs with this tag (127)