Databases APIs let you add databases capabilities without building from scratch. Every entry below is profiled with trust signals — pricing model, authentication requirements, CORS support, rate limits, and live uptime checks — so you can compare options and pick production-safe choices instead of guessing from a link list.
| API | Pricing | Auth | CORS | Health | |
|---|---|---|---|---|---|
| AWS DynamoDB API Official AWS DynamoDB service API exposed through AWS SDKs and service API references. | Paid | API Key | Yes | Profile | |
| AWS DynamoDBStreams API Official AWS DynamoDBStreams service API exposed through AWS SDKs and service API references. | Paid | API Key | Yes | Profile | |
| AWS ElastiCache API Official AWS ElastiCache service API exposed through AWS SDKs and service API references. | Paid | API Key | Yes | Profile | |
| AWS Neptune API Official AWS Neptune service API exposed through AWS SDKs and service API references. | Paid | API Key | Yes | Profile | |
| AWS RDS API Official AWS RDS service API exposed through AWS SDKs and service API references. | Paid | API Key | Yes | Profile | |
| AWS RDSDataService API Official AWS RDSDataService service API exposed through AWS SDKs and service API references. | Paid | API Key | Yes | Profile | |
| AWS Redshift API Official AWS Redshift service API exposed through AWS SDKs and service API references. | Paid | API Key | Yes | Profile | |
| Azure Analysis Services Analysis Services API 2016-05-16 Official Microsoft Azure REST API OpenAPI specification for specification/analysisservices/resource-manager/Microsoft.AnalysisServices/AnalysisServices/stable/2016-05-16/analysisservices.json. | Paid | Unknown | Yes | Profile | |
| Azure Analysis Services Analysis Services API 2017-07-14 Official Microsoft Azure REST API OpenAPI specification for specification/analysisservices/resource-manager/Microsoft.AnalysisServices/AnalysisServices/stable/2017-07-14/analysisservices.json. | Paid | API Key | Yes | Profile | |
| Azure Analysis Services Analysis Services API 2017-08-01 Official Microsoft Azure REST API OpenAPI specification for specification/analysisservices/resource-manager/Microsoft.AnalysisServices/AnalysisServices/stable/2017-08-01/analysisservices.json. | Paid | Unknown | Yes | Profile | |
| Azure Aws Connector Microsoft.Aws Connector API 2024-12-01 17 Official Microsoft Azure REST API OpenAPI specification for specification/awsconnector/resource-manager/Microsoft.AwsConnector/stable/2024-12-01/databaseMigrationServiceReplicationInstance.json. | Paid | API Key | Yes | Profile | |
| Azure Kusto Kusto API 2025-02-14 Official Microsoft Azure REST API OpenAPI specification for specification/azure-kusto/resource-manager/Microsoft.Kusto/Kusto/stable/2025-02-14/kusto.json. | Paid | API Key | Yes | Profile | |
| BIN Lookup API BIN lookup API, the free api service from bintable.com to lookup card information using it's BIN. the service maintains updated database based on the comunity and other third party services to make sure all BINs in the d | Open Source | API Key | Yes | Profile | |
| Braze Endpoints API # Braze API Overview Braze provides a high performance REST API to allow you to track users, send messages, export data, and more. A REST API is a way to programmatically transfer information over the web using a predefi | Free | Unknown | Yes | Profile | |
| Daymet Single Pixel Extraction Tool API Welcome to the Daymet Single Pixel Extraction Tool API. You can use this API to download daily surface data within the Daymet database in a `csv` or `json` format for a single point. This API allows users to query a sing | Paid | Unknown | Yes | Profile | |
| DigitalNZ API OpenAPI specification of DigitalNZ's Record API. For more information about the API see [digitalnz.org/developers](https://digitalnz.org/developers). To learn more about the metadata/fields used in the API see the [Metad | Unknown | Unknown | Yes | Profile | |
| EtMDB REST API v1 API The Ethiopian Movie Database | Unknown | Unknown | Yes | Profile | |
| ExtendsClass JSON Storage A simple JSON store API | Free | No | No | Profile | |
| Frankie Financial API ------ This API allows developers to integrate the Frankie Financial Compliance Utility into their applications. The API allows: - Checking name, address, date of birth against national databases - Validating Australian | Unknown | Unknown | Yes | Profile | |
| Gisgraphy webservices API Since 2006, [Gisgraphy](http://www.gisgraphy.com) is a free, open source framework that offers the possibility to do geolocalisation and geocoding via Java APIs or REST webservices. Because geocoding is nothing without d | Unknown | Unknown | Yes | Profile | |
| Google Analytics Hub API Official Google Analytics Hub API REST API (v1beta1) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| Google BigQuery API Official Google BigQuery API REST API (v2) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| Google BigQuery Data Policy API Official Google BigQuery Data Policy API REST API (v1) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| Google BigQuery Data Transfer API Official Google BigQuery Data Transfer API REST API (v1) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| Google BigQuery Reservation API Official Google BigQuery Reservation API REST API (v1) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| Google Cloud SQL Admin API Official Google Cloud SQL Admin API REST API (v1beta4) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| Google Cloud Spanner API Official Google Cloud Spanner API REST API (v1) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| Google Database Center API Official Google Database Center API REST API (v1beta) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| Google Database Migration API Official Google Database Migration API REST API (v1beta1) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| Google Firebase Realtime Database Management API Official Google Firebase Realtime Database Management API REST API (v1beta) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| Google Oracle Database@Google Cloud API Official Google Oracle Database@Google Cloud API REST API (v1) discovered via Google APIs Discovery Service. | Unknown | Unknown | Yes | Profile | |
| High Performance Building Database API The Buildings Database is a shared resource for the building industry. The Database, developed by the U.S. Department of Energy and the National Renewable Energy Laboratory (NREL), is a unique central repository of in-de | Unknown | Unknown | Yes | Profile | |
| JSONbin.io Free JSON storage service. Ideal for small scale Web apps, Websites and Mobile apps | Free | API Key | No | Profile | |
| Lords Votes API An API that allows querying of Lords Votes data. | Unknown | Unknown | Yes | Profile | |
| MongoDB Atlas Administration API Atlas Administration REST API to manage MongoDB Atlas projects, clusters, users, network access, backups, and billing programmatically. Uses HTTP digest authentication with programmatic API keys. | Freemium | API Key | No | Profile | |
| Nasa Gov APOD API This endpoint structures the APOD imagery and associated metadata so that it can be repurposed for other applications. In addition, if the concept_tags parameter is set to True, then keywords derived from the image expla | Unknown | Unknown | Yes | Profile | |
| Neon API Manage serverless Postgres projects, branches, databases, roles, endpoints, snapshots, and usage. | Freemium | API Key | No | Profile | |
| Neon Data API HTTP SQL access API for Neon Postgres databases. | Freemium | API Key | Yes | Profile | |
| Nookipedia API The Nookipedia API provides endpoints for retrieving *Animal Crossing* data pulled from the [Nookipedia wiki](https://nookipedia.com/wiki/Main_Page). A couple of the key benefits of using the Nookipedia API is access to | Unknown | Unknown | Yes | Profile | |
| PDF Blocks API PDF Blocks is a secure, reliable, and fast API to work with PDF documents. Actions include: Merge PDF documents, add or remove passwords, add watermarks, remove, extract, reverse, and rotate pages, and more. | Unknown | Unknown | Yes | Profile | |
| PlanetScale API PlanetScale MySQL platform API to manage databases, branches, deploy requests, and backups using service tokens as bearer credentials. | Paid | API Key | No | Profile | |
| Qdrant Vector Database API Qdrant vector database engine REST and gRPC APIs for similarity search; run self-hosted free or fully managed on Qdrant Cloud. | Freemium | API Key | No | Profile | |
| Rat Genome Database REST API The RGD REST API provides programmatic access to information and annotation stored in the Rat Genome Database | Unknown | Unknown | Yes | Profile | |
| Redis Cloud API Redis Cloud REST API to manage subscriptions, databases, backups, and accounts on Redis Cloud. Authenticated with account key plus secret key. | Freemium | API Key | No | Profile | |
| SearchLy API v1 API # Introduction The SearchLy API provides similarity searching based on song lyrics. # Operations The API allows for the `/similarity/by_song` operation, which allows clients to search the similarity for an existing song | Free | Unknown | Yes | Profile | |
| Supabase API Supabase platform APIs: PostgREST data queries, Auth, Storage, Realtime, Edge Functions, and the account Management API for provisioning projects programmatically. | Freemium | API Key | Yes | Profile | |
| Supabase Data API Auto-generated REST APIs over Postgres tables, views, and functions in Supabase projects. | Freemium | API Key | Yes | Profile | |
| TCGdex API A Multilanguage Pokémon TCG Database with Cards Pictures and most of the informations contained on the cards. You can find out more about TCGdex at [https://www.tcgdex.net](https://www.tcgdex.net) or on [Discord](https:/ | Unknown | API Key | Yes | Profile | |
| Turso Platform API Turso Platform API for managing organizations, databases, tokens, and locations for libSQL edge databases. Bearer-token authentication with API tokens. | Freemium | API Key | No | Profile | |
| Upstash Redis REST API HTTP REST interface to Upstash Redis designed for serverless and edge environments; run Redis commands over HTTPS without persistent connections. | Freemium | API Key | Yes | Profile | |
| VisibleThread API ## Introduction The VisibleThread b API provides services for analyzing/searching documents and web pages. To use the service you need an API key. **Contact us at support@visiblethread.com to request an API key**. The se | Paid | Unknown | Yes | Profile | |
| Word Associations API The Word Associations Network API allows developers to embed the ability to find associations for a word or phrase into their mobile apps or web services. Words are grouped by semantics, meaning, and psychological percep | Unknown | Unknown | Yes | Profile | |
| Wordnik Wordnik API Wordnik is the worlds biggest online English dictionary, by number of words | Unknown | Unknown | Yes | Profile | |
| eNanoMapper database API AMBIT REST web services [eNanoMapper profile] with free text & faceted search | Unknown | OAuth | Yes | Profile |
Start with pricing and auth: free tiers and no-auth APIs are fastest to prototype with. Then check CORS if your app calls the API from the browser, and health before you commit — a great API that's been down for a week will block your launch. Each profile below shows all of these signals plus rate limits where documented.