Apache Cassandra
Apache Cassandra is a highly scalable, distributed open-source NoSQL database designed to handle massive amounts of data across many commodity servers, providing high availability with no single point of failure. It is governed by the Apache Software Foundation (ASF) under the Apache License 2.0 and is used in production by Netflix, Apple, Bloomberg, Backblaze, and many others. Cassandra exposes its CQL native protocol for clients and a family of HTTP, REST, GraphQL, Document, and gRPC APIs via the Stargate data gateway.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Apache Cassandra the way a machine reads it — 61 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Apache Cassandra scores 34.2/100 (thin), with a separate agent-readiness read of 20/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-10 · rubric v0.20.0
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How we profile Apache Cassandra
Each block below is one kind of artifact we hold for Apache Cassandra. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 12
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Apache Cassandra CQL Native Protocol
Cassandra Query Language (CQL) is the primary interface to Apache Cassandra. Clients speak the binary CQL native protocol over TCP (default port 9042). Official drivers are main...
Cassandra REST API (Stargate)
HTTP/JSON REST API for Cassandra provided by the Stargate data gateway. Enables CRUD operations and SQL-like query via REST without the CQL driver.
Cassandra GraphQL API (Stargate)
GraphQL endpoint for Cassandra, enabling flexible, typed queries and mutations against Cassandra tables through the Stargate gateway.
Cassandra Document API (Stargate)
Schemaless Document API that stores JSON documents in Cassandra, offering a MongoDB-like developer experience backed by Cassandra.
Cassandra gRPC API (Stargate)
High-performance gRPC API for Cassandra through Stargate, designed for low-latency service-to-service communication.
Cassandra JMX Management Interface
Java Management Extensions (JMX) interface for monitoring and administering Cassandra nodes, including metrics, compaction, repairs, and configuration.
Apache Cassandra Columns API
The Columns API from Apache Cassandra — 2 operation(s) for columns.
Apache Cassandra Indexes API
The Indexes API from Apache Cassandra — 2 operation(s) for indexes.
Apache Cassandra Keyspaces API
The Keyspaces API from Apache Cassandra — 2 operation(s) for keyspaces.
Apache Cassandra Rows API
The Rows API from Apache Cassandra — 3 operation(s) for rows.
Apache Cassandra Tables API
The Tables API from Apache Cassandra — 2 operation(s) for tables.
Apache Cassandra Types API
The Types API from Apache Cassandra — 2 operation(s) for types.
Scroll within the panel for all 12 ·
Open Collections 8
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONApache Cassandra REST API (via Stargate) Columns API
OPEN COLLECTIONApache Cassandra REST API (via Stargate) Columns Indexes API
OPEN COLLECTIONApache Cassandra REST API (via Stargate) Columns Rows API
OPEN COLLECTIONApache Cassandra REST API (via Stargate) Columns Tables API
OPEN COLLECTIONApache Cassandra REST API (via Stargate) Columns Types API
OPEN COLLECTIONApache Cassandra REST API (via Stargate)
OPEN COLLECTIONScroll within the panel for all 8 ·
GraphQL 1
Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.
GraphQL schemas published by this provider.
Apache Cassandra GraphQL API
GraphQL endpoint for Cassandra, enabling flexible, typed queries and mutations against Cassandra tables through the Stargate gateway.
GRAPHQLPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Cassandra Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Cassandra Finops
FINOPSFeatures 21
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Distributed
Masterless
Linear Scalability
Multi-Datacenter Replication
High Availability
Fault Tolerance
Tunable Consistency
CQL Query Language
Secondary Indexes
Materialized Views
User Defined Types
User Defined Functions
Vector Search
Time Series Storage
Cross-Region Replication
Role Based Access Control
TLS/SSL Encryption
At-Rest Encryption
Snapshot Backups
Incremental Repairs
Apache License 2.0
Scroll within the panel for all 21 ·
Security Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 12
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
Event Logging
IoT Telemetry
Time Series Data
Product Catalogs
Messaging Platforms
Fraud Detection
Recommendation Engines
Activity Feeds
Audit Logs
Real-Time Analytics
Mobile Application Backends
Vector Similarity Search
Scroll within the panel for all 12 ·
Resources
Every other property we hold for Apache Cassandra — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 2
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 5
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 4
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 7
Properties that don't map to a standard resource type
Scroll within the panel for all 7 ·
← All providers · Data indexed from github.com/api-evangelist/cassandra · machine-readable index on apis.io
This is an independent, third-party profile of Apache Cassandra, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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