Need help with your APIs? I offer API discovery, governance & evangelism services. Explore services →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
OpenSearch website screenshot

OpenSearch

OpenSearch is the open source, community-driven search, analytics, and observability suite (forked from Elasticsearch and Kibana) maintained under the Linux Foundation's OpenSearch Software Foundation. The platform exposes REST APIs across the search engine, the OpenSearch Dashboards UI, and a set of plugins. The Security plugin REST API lets administrators programmatically create and manage internal users, roles, role mappings, action groups, tenants, security configuration, audit log configuration, and SSL certificates.

agent native

Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.

Kin Score

API Evangelist profiles OpenSearch the way a machine reads it — 37 machine-readable artifacts across 15 APIs, 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 — OpenSearch scores 59.0/100 (developing), with a separate agent-readiness read of 64/100 (agent native). 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.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 59.0/100 · developing
Contract Quality 15.3 / 25
Developer Ergonomics 10.9 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 6.2 / 13
Governance 8.8 / 12
Discoverability 10.0 / 10
Agent readiness — 64/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 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 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile OpenSearch

Each block below is one kind of artifact we hold for OpenSearch. 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 15

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.

OpenSearch Search and Indexing REST API

The core OpenSearch REST API for indexing documents, performing search queries (full text, vector, hybrid), aggregations, and managing indices, mappings, templates, aliases, and...

OpenSearch Account API

Self-service account endpoints for the calling user.

OpenSearch Action Groups API

Reusable groups of cluster and index permissions.

OpenSearch Allowlist API

Allowlist of HTTP APIs available to non-admin users.

OpenSearch Audit API

Audit log configuration.

OpenSearch Cache API

Manage the security cache.

OpenSearch Certificates API

Inspect SSL certificates loaded by the cluster.

OpenSearch Health API

Security plugin health check.

OpenSearch Internal Users API

CRUD for internal user database entries.

OpenSearch Nodes DN API

Allowlisted distinguished names for cross-cluster nodes.

OpenSearch Role Mappings API

Map users, backend roles, and hosts to security roles.

OpenSearch Roles API

CRUD for security roles and their permissions.

OpenSearch Security Config API

Inspect and update the running security configuration.

OpenSearch SSL Info API

Inspect SSL handshake information for the calling client.

OpenSearch Tenants API

Multi-tenancy support for OpenSearch Dashboards.

Scroll within the panel for all 15 ·

Open Collections 1

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).

MCP Servers 1

Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.

Model Context Protocol servers that expose these APIs to AI agents.

MCP Server

MCP SERVER

Agent Skills 10

An agent skill packages the how-to for driving these APIs from an assistant — the prompts, the sequence, the guardrails — so the knowledge to use the API travels with it.

Packaged agent skills for driving this provider's APIs from an AI assistant.

aws-setup

AGENT SKILL

cloud

AGENT SKILL

log-analytics

AGENT SKILL

observability

AGENT SKILL

opensearch-skills

AGENT SKILL

search

AGENT SKILL

trace-analytics

AGENT SKILL

Scroll within the panel for all 10 ·

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.

OpenSearch GraphQL Schema

This directory contains a conceptual GraphQL schema for the OpenSearch search, analytics, and observability platform — the open-source, community-driven suite forked from Elasti...

GRAPHQL

Pricing 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 six things the Kin Score reads for commercial clarity.

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.

Opensearch Rate Limits

5 limits

RATE LIMITS

FinOps 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.

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Opensearch Context

3 classes · 0 properties

JSON-LD

Spectral Rules 1

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

OpenSearch API Rules

5 rules · 4 warnings

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

OpenSearch Security Role

7 properties

JSON SCHEMA

Security Posture 2

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.

Opensearch Authentication

http · 1 scheme

SECURITY

Opensearch Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

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.

Opensearch Agentic Access

47 operations · 27 acting

47 operations · 27 acting

AGENTIC

Resources

Every other property we hold for OpenSearch — 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 3

MCP servers, agent skills, and machine-readable catalogs

Access & Security 3

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 1

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Other 1

Properties that don't map to a standard resource type

← All providers · Data indexed from github.com/api-evangelist/opensearch · machine-readable index on apis.io