# OpenSearch

**Canonical:** https://apis.io/providers/opensearch/  
**Website:** https://opensearch.org/  
**APIs profiled:** 15

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.

## Kin Score — 39.0 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 39.0).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 58.6 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 23.7 |
| Developer Ergonomics | 47.6 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 37.4 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | yes |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (15)

- **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.

## MCP servers (1)

- **MCP Server**

## Agentic access (1)

- **Opensearch Agentic Access** — 47 operations · 27 acting

## Security (2)

- **Opensearch Authentication** — http · 1 scheme
- **Opensearch Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Opensearch Plans Pricing**

## Tags

Search, Analytics, Observability, Open-Source, Security

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/opensearch/). Scores are computed from the provider's own public artifacts under a published rubric.