KVdb

Stop wasting time setting up NoSQL databases. KVdb is a hosted serverless key-value database with a simple HTTPS REST API. Buckets act as namespaces for keys, with built-in access control via secret, read, and write keys, custom Lua scripts, and per-bucket TTLs.

KVdb publishes 3 API contracts indexed on the APIs.io network: Buckets API, Keys API, and Scripts API. Tagged areas include Database, Key-Value Store, NoSQL, and Serverless.

The KVdb catalog on APIs.io includes 1 Spectral governance ruleset.

KVdb’s developer surface includes authentication, documentation, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

25.5/100 emerging ▬ flat Agent 22/100 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 →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Database Key-Value Store NoSQL Serverless

Kin Score

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

Composite quality — 25.5/100 · emerging

Contract Quality 8.8 / 19

Developer Ergonomics 5.4 / 15

Access Clarity 1.0 / 15

Operational Transparency 0.7 / 10

Contract Governance 1.2 / 9

Discoverability 3.6 / 8

Regulatory Posture 0.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · 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 7 / 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 →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

9 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 47.1 — up to +13.2 composite points Ask about this →
Developer Ergonomics scores 35.7 — up to +12.9 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.

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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/kvdb/apis.yml: open an issue on github.com/api-evangelist/kvdb 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 3

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

KVdb Buckets API

Bucket lifecycle operations

KVdb Keys API

Key-value operations within a bucket

KVdb Scripts API

Custom Lua script management and execution

Open Collections 4

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

KVdb Buckets API

OPEN COLLECTION

KVdb Buckets Keys API

OPEN COLLECTION

KVdb Buckets Scripts API

OPEN COLLECTION

KVdb API

OPEN COLLECTION

KVdb API pricing

Not yet checked against KVdb's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against KVdb's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

KVdb Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

KVdb Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

KVdb Finops

FINOPS

Spectral Rules 1

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

KVdb API Rules

53 rules · 51 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

KVdb Authentication

apiKey/http · 2 schemes

SECURITY

KVdb Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

KVdb Agentic Access

10 operations · 7 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: kvdb
name: KVdb
description: Stop wasting time setting up NoSQL databases. KVdb is a hosted serverless key-value database with a simple HTTPS
  REST API. Buckets act as namespaces for keys, with built-in access control via secret, read, and write keys, custom Lua
  scripts, and per-bucket TTLs.
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kvdb.png
tags:
- Database
- Key-Value Store
- NoSQL
- Serverless
tags_raw:
- Databases
- Key-Value
- NoSQL
- Serverless
url: https://raw.githubusercontent.com/api-evangelist/kvdb/refs/heads/main/apis.yml
created: '2025-02-08'
modified: '2026-05-19'
specificationVersion: '0.23'
access: 3rd-Party
position: Consuming
apis:
- aid: kvdb:kvdb-buckets-api
  name: KVdb Buckets API
  description: Bucket lifecycle operations
  humanURL: https://kvdb.io/
  tags:
  - Buckets
  properties:
  - type: OpenAPI
    url: openapi/kvdb-buckets-api-openapi.yml
  - type: Documentation
    url: https://kvdb.io/
  - type: GettingStarted
    url: https://kvdb.io/
- aid: kvdb:kvdb-keys-api
  name: KVdb Keys API
  description: Key-value operations within a bucket
  humanURL: https://kvdb.io/
  tags:
  - Keys
  properties:
  - type: OpenAPI
    url: openapi/kvdb-keys-api-openapi.yml
  - type: Documentation
    url: https://kvdb.io/
  - type: GettingStarted
    url: https://kvdb.io/
- aid: kvdb:kvdb-scripts-api
  name: KVdb Scripts API
  description: Custom Lua script management and execution
  humanURL: https://kvdb.io/
  tags:
  - Scripts
  properties:
  - type: OpenAPI
    url: openapi/kvdb-scripts-api-openapi.yml
  - type: Documentation
    url: https://kvdb.io/
  - type: GettingStarted
    url: https://kvdb.io/
common:
- type: Plans
  url: plans/kvdb-plans-pricing.yml
- type: RateLimits
  url: rate-limits/kvdb-rate-limits.yml
- type: FinOps
  url: finops/kvdb-finops.yml
- type: AgenticAccess
  url: agentic-access/kvdb-agentic-access.yml
- type: DomainSecurity
  url: security/kvdb-domain-security.yml
- type: Authentication
  url: authentication/kvdb-authentication.yml
- type: Website
  url: https://kvdb.io/
- type: Documentation
  url: https://kvdb.io/
- url: https://blog.kvdb.io/feed.rss
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

KVdb API — frequently asked questions

Does KVdb have an API?

Yes. APIs.io lists 3 APIs from KVdb, including KVdb Buckets API, KVdb Keys API and KVdb Scripts API.

Is there an OpenAPI specification for the KVdb API?

Yes. APIs.io indexes 3 OpenAPI specifications for KVdb, each linked for download from this page.

How do I authenticate with the KVdb API?

KVdb uses bearer-token authentication (apiKey/http · 2 schemes). The details are profiled on APIs.io as KVdb Authentication.

How much does the KVdb API cost?

APIs.io lists 3 pricing plans for KVdb, with each plan's price, limits and inclusions under Pricing on this page.

Is the KVdb API ready for AI agents?

KVdb has a Kin Score of 25.5 out of 100 (emerging) and an Agent Readiness score of 22.4 (agent-aware), scored by API Evangelist on 2026-11-13.

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