# Milvus

**Canonical:** https://apis.io/providers/milvus/  
**Website:** https://milvus.io/  
**APIs profiled:** 8

Milvus is an Apache 2.0 open-source vector database. It exposes a versioned REST API alongside gRPC and language SDKs (Python, Go, Java, Node.js). Maintained by Zilliz; LF AI & Data Foundation graduated project.

## Kin Score — 30.6 / 100 (thin)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 30.6).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 50.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 21.1 |
| Developer Ergonomics | 22.6 |
| Commercial Clarity | 13.2 |
| Access Clarity | 13.2 |

## Agent readiness — 29.1 (agent-aware)

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

## Access

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

## APIs (8)

- **Milvus REST API v2** — Milvus v2 REST API covers collections, partitions, vectors, search, query, indexes, and role/RBAC management. Authentication: Bearer token formed from `username:password` when a...
- **Milvus gRPC API** — gRPC is the canonical, high-throughput interface to Milvus. The official SDKs are gRPC-based; the REST API is a thin wrapper for non-Go/Python/Java clients.
- **Milvus Collections API** — The Collections API from Milvus — 11 operation(s) for collections.
- **Milvus Entities API** — The Entities API from Milvus — 7 operation(s) for entities.
- **Milvus Indexes API** — The Indexes API from Milvus — 4 operation(s) for indexes.
- **Milvus Partitions API** — The Partitions API from Milvus — 3 operation(s) for partitions.
- **Milvus Roles API** — The Roles API from Milvus — 2 operation(s) for roles.
- **Milvus Users API** — The Users API from Milvus — 2 operation(s) for users.

## Agentic access (1)

- **Milvus Agentic Access** — 29 operations · 26 acting

## Security (2)

- **Milvus Authentication** — http · 1 scheme
- **Milvus Domain Security** — TLSv1.3

## Plans (1)

- **Milvus Plans Pricing**

## Tags

Vector Database, Artificial Intelligence, Embeddings, Open-Source, Cloud-Native

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