Riak KV

Riak KV is a distributed NoSQL key-value database originally developed by Basho Technologies, designed for high availability, fault tolerance, and horizontal scalability across commodity hardware. Riak exposes two client-facing APIs: a RESTful HTTP API for basic GET, PUT, POST, and DELETE operations, and a higher-performance Protocol Buffers (PBC) API spoken over TCP. Both APIs support buckets, objects, secondary indexes, search, MapReduce, and CRDT data types.

Riak KV publishes 8 API contracts indexed on the APIs.io network, including Mapred API, Ping API, Riak KV HTTP API, and 5 more. Tagged areas include Database, NoSQL, Key-Value Store, Distributed Systems, and Open Source.

The Riak KV catalog on APIs.io includes 1 Spectral governance ruleset.

Riak KV’s developer surface includes engineering blog, authentication, documentation, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.3/100 thin ▬ flat Agent 19/100 agent aware Front door AI 1/6 silent Heartbeat 0/100 dormant Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract

Database NoSQL Key-Value Store Distributed Systems Open SourceBashoCRDT

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 27.3/100 · thin

Contract Quality 7.6 / 19

Developer Ergonomics 4.7 / 15

Access Clarity 1.0 / 15

Operational Transparency 0.5 / 10

Contract Governance 1.2 / 9

Discoverability 5.5 / 8

Regulatory Posture 0.9 / 15

Create-or-Update Ergonomics 2.2 / 10

Agent readiness — 19/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →

10 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 6.4 — up to +18.7 composite points Ask about this →
Contract Quality scores 40.4 — up to +14.9 composite points Ask about this →
Developer Ergonomics scores 31.0 — up to +13.8 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/riak/apis.yml: open an issue on github.com/api-evangelist/riak to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 8

Individual APIs this provider publishes, each with its own machine-readable definition.

Riak KV HTTP API

RESTful HTTP API for Riak KV providing GET, PUT, POST, and DELETE access to buckets, objects, secondary indexes, search, MapReduce, and CRDT data types. Default port is 8098. Au...

Riak Protocol Buffers Client API

Higher-performance binary client API for Riak KV using Protocol Buffers messages encoded over a long-lived TCP connection. Default port is 8087. Each request message produces on...

Riak KV Mapred API

The Mapred API from Riak KV — 1 operation(s) for mapred.

Riak KV Ping API

The Ping API from Riak KV — 1 operation(s) for ping.

Riak KV Riak KV HTTP API

The Riak KV HTTP API API from Riak KV — 1 operation(s) for riak kv http api.

Riak KV Search API

The Search API from Riak KV — 4 operation(s) for search.

Riak KV Stats API

The Stats API from Riak KV — 1 operation(s) for stats.

Riak KV Types API

The Types API from Riak KV — 7 operation(s) for types.

Scroll for all 8

Open Collections 7

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Riak KV HTTP Mapred API

OPEN COLLECTION

Riak KV HTTP Mapred Ping API

OPEN COLLECTION

Riak KV HTTP Mapred Riak KV HTTP API API

OPEN COLLECTION

Riak KV HTTP Mapred Search API

OPEN COLLECTION

Riak KV HTTP Mapred Stats API

OPEN COLLECTION

Riak KV HTTP Mapred Types API

OPEN COLLECTION

Riak KV HTTP API

OPEN COLLECTION

Scroll for all 7

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Riak KV

5 quoted statements, read from Riak KV's own page on 2026-11-10.

TERMS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Riak KV

1 quoted statement, read from Riak KV's own page on 2026-11-10.

LICENSE

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Riak KV API Rules

53 rules · 49 error-severity 2 warn-severity 2 info-severity

SPECTRAL

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Riak KV Authentication

http · 1 scheme

SECURITY

Riak KV Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

Riak KV Agentic Access

25 operations · 11 acting · 1 human-in-the-loop

25 operations · 11 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

API Documentation

API Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Source Code

Source Code

Client Libraries

Client Libraries

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Commercial 3

Pricing, plans, and the legal terms of use

License

License

UsageTerms

UsageTerms

DataLicense

DataLicense

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

Protocol Buffers Repo

Protocol Buffers Repo

Download

Download

Source (apis.yml)

aid: riak
name: Riak KV
description: 'Riak KV is a distributed NoSQL key-value database originally developed by Basho Technologies, designed for high
  availability, fault tolerance, and horizontal scalability across commodity hardware. Riak exposes two client-facing APIs:
  a RESTful HTTP API for basic GET, PUT, POST, and DELETE operations, and a higher-performance Protocol Buffers (PBC) API
  spoken over TCP. Both APIs support buckets, objects, secondary indexes, search, MapReduce, and CRDT data types.'
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/riak.png
tags:
- Database
- NoSQL
- Key-Value Store
- Distributed Systems
- Open Source
- Basho
- CRDT
tags_raw:
- Database
- NoSQL
- Key-Value Store
- Distributed Systems
- Open Source
- Basho
- CRDT
- Open-Source
url: https://raw.githubusercontent.com/api-evangelist/riak/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-10-06'
specificationVersion: '0.23'
apis:
- aid: riak:http-api
  name: Riak KV HTTP API
  description: RESTful HTTP API for Riak KV providing GET, PUT, POST, and DELETE access to buckets, objects, secondary indexes,
    search, MapReduce, and CRDT data types. Default port is 8098. Authentication and authorization are configured via Riak
    security on the server.
  humanURL: https://docs.riak.com/riak/kv/latest/developing/api/http
  baseURL: http://<your-riak-host>:8098
  tags:
  - HTTP API
  - Key-Value Store
  - Buckets
  - MapReduce
  - Secondary Indexes
  tags_raw:
  - HTTP API
  - Key-Value
  - Buckets
  - MapReduce
  - Secondary Indexes
  properties:
  - type: Documentation
    url: https://docs.riak.com/riak/kv/latest/developing/api/http
  - type: HTTP Bucket Operations
    url: https://docs.riak.com/riak/kv/latest/developing/api/http/list-buckets.1.html
  - type: HTTP Object Operations
    url: https://docs.riak.com/riak/kv/latest/developing/api/http/fetch-object.1.html
- aid: riak:protocol-buffers
  name: Riak Protocol Buffers Client API
  description: Higher-performance binary client API for Riak KV using Protocol Buffers messages encoded over a long-lived
    TCP connection. Default port is 8087. Each request message produces one or more response messages on the same connection.
    Message definitions are published in the open source basho/riak_pb repository.
  humanURL: https://docs.riak.com/riak/kv/latest/developing/api/protocol-buffers
  baseURL: pb://<your-riak-host>:8087
  tags:
  - Protocol Buffers
  - PBC
  - Binary Protocol
  - Key-Value Store
  - High Performance
  tags_raw:
  - Protocol Buffers
  - PBC
  - Binary Protocol
  - Key-Value
  - High Performance
  properties:
  - type: Documentation
    url: https://docs.riak.com/riak/kv/latest/developing/api/protocol-buffers
  - type: Message Definitions
    url: https://github.com/basho/riak_pb
  - type: Encoding Reference
    url: https://docs.riak.com/riak/kv/latest/developing/api/protocol-buffers/index.html
- aid: riak:riak-mapred-api
  name: Riak KV Mapred API
  description: The Mapred API from Riak KV — 1 operation(s) for mapred.
  humanURL: https://docs.riak.com/riak/kv/latest/developing/api/http
  baseURL: http://<your-riak-host>:8098
  tags:
  - Mapred
  properties:
  - type: OpenAPI
    url: openapi/riak-mapred-api-openapi.yml
- aid: riak:riak-ping-api
  name: Riak KV Ping API
  description: The Ping API from Riak KV — 1 operation(s) for ping.
  humanURL: https://docs.riak.com/riak/kv/latest/developing/api/http
  baseURL: http://<your-riak-host>:8098
  tags:
  - Ping
  properties:
  - type: OpenAPI
    url: openapi/riak-ping-api-openapi.yml
- aid: riak:riak-riak-kv-http-api-api
  name: Riak KV Riak KV HTTP API
  description: The Riak KV HTTP API API from Riak KV — 1 operation(s) for riak kv http api.
  humanURL: https://docs.riak.com/riak/kv/latest/developing/api/http
  baseURL: http://<your-riak-host>:8098
  tags:
  - Riak KV HTTP API
  properties:
  - type: OpenAPI
    url: openapi/riak-riak-kv-http-api-api-openapi.yml
- aid: riak:riak-search-api
  name: Riak KV Search API
  description: The Search API from Riak KV — 4 operation(s) for search.
  humanURL: https://docs.riak.com/riak/kv/latest/developing/api/http
  baseURL: http://<your-riak-host>:8098
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/riak-search-api-openapi.yml
- aid: riak:riak-stats-api
  name: Riak KV Stats API
  description: The Stats API from Riak KV — 1 operation(s) for stats.
  humanURL: https://docs.riak.com/riak/kv/latest/developing/api/http
  baseURL: http://<your-riak-host>:8098
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/riak-stats-api-openapi.yml
- aid: riak:riak-types-api
  name: Riak KV Types API
  description: The Types API from Riak KV — 7 operation(s) for types.
  humanURL: https://docs.riak.com/riak/kv/latest/developing/api/http
  baseURL: http://<your-riak-host>:8098
  tags:
  - Types
  properties:
  - type: OpenAPI
    url: openapi/riak-types-api-openapi.yml
common:
- url: https://riak.com/blog/
  type: Blog
- type: AgenticAccess
  url: agentic-access/riak-agentic-access.yml
- type: DomainSecurity
  url: security/riak-domain-security.yml
- type: Authentication
  url: authentication/riak-authentication.yml
- type: Website
  url: https://riak.com
- type: Documentation
  url: https://docs.riak.com/riak/kv/latest/
- type: API Documentation
  url: https://docs.riak.com/riak/kv/latest/developing/api/
- type: GitHubOrganization
  url: https://github.com/basho
- type: Source Code
  url: https://github.com/basho/riak
- type: Protocol Buffers Repo
  url: https://github.com/basho/riak_pb
- type: Client Libraries
  url: https://docs.riak.com/riak/kv/latest/developing/client-libraries/
- type: Download
  url: https://docs.riak.com/riak/kv/latest/setup/installing/
- type: License
  url: https://github.com/basho/riak/blob/develop/LICENSE
- type: LlmsText
  url: https://docs.riak.com/llms.txt
- type: UsageTerms
  url: terms/riak-terms-of-service.yml
- type: DataLicense
  url: data-license/riak-data-license.yml
features:
- name: Distributed Key-Value Store
  description: Masterless ring-based key-value store with configurable replication and tunable consistency.
- name: High Availability
  description: No single point of failure with eventual consistency, hinted handoff, and read repair across the cluster.
- name: Secondary Indexes
  description: Tag objects with secondary index terms and query them via the HTTP or Protocol Buffers APIs.
- name: MapReduce
  description: Run JavaScript or Erlang MapReduce jobs against buckets and key lists via the API.
- name: Riak Search
  description: Full-text search powered by Solr integration with schema-aware indexing of stored objects.
- name: CRDT Data Types
  description: Convergent replicated data types including counters, sets, maps, and registers for conflict-free updates.
solutions:
- name: Highly Available Storage
  description: Deploy as the primary store for applications that must remain available across node and datacenter failures.
- name: Session and Profile Storage
  description: Store user sessions, profiles, and preferences at scale with predictable low-latency reads and writes.
- name: Distributed Caching
  description: Operate as a durable distributed cache for content and configuration that must survive node failure.
useCases:
- name: Multi-Datacenter Replication
  description: Replicate data across datacenters for disaster recovery and geographic distribution.
- name: IoT and Sensor Data Ingest
  description: Ingest high-volume key-value writes from sensors and devices with horizontal scaling.
- name: Shopping Cart Storage
  description: Store shopping carts and other always-writeable data using CRDT data types for conflict-free merging.
integrations:
- name: Solr
  description: Full-text indexing via Riak Search powered by Solr
- name: Erlang
  description: Native Erlang client and pluggable MapReduce
- name: Java
  description: Official Java client speaking the Protocol Buffers API
- name: Python
  description: Official Python client supporting HTTP and Protocol Buffers
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Riak KV API — frequently asked questions

Does Riak KV have an API?

Yes. APIs.io lists 8 APIs from Riak KV, including Riak KV HTTP API, Riak Protocol Buffers Client API and Riak KV Mapred API, and 5 more.

Is there an OpenAPI specification for the Riak KV API?

Yes. APIs.io indexes 6 OpenAPI specifications for Riak KV, each linked for download from this page.

How do I authenticate with the Riak KV API?

Riak KV uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Riak KV Authentication.

Is the Riak KV API ready for AI agents?

Riak KV has a Kin Score of 27.3 out of 100 (thin) and an Agent Readiness score of 19.0 (agent-aware), scored by API Evangelist on 2026-11-13.

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