# Meilisearch vs Weaviate API + MCP

> Meilisearch scores 78.6 (A) to Weaviate's 67.9 (B) for vector search. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/meilisearch-vs-weaviate
- Markdown: https://www.anchorterminal.com/compare/meilisearch-vs-weaviate.md (~2,450 tokens)
- Slim: https://www.anchorterminal.com/compare/meilisearch-vs-weaviate.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/meilisearch-vs-weaviate.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

Meilisearch scores 78.6 (A) on agent readiness against Weaviate API + MCP's 67.9 (B), and leads in 4 of 7 scored categories. Weaviate API + MCP leads on agent ergonomics and security & auth. Both do vector search.

- Meilisearch: grade A, 78.6/100, rank #14 of 950. Markdown https://www.anchorterminal.com/tools/meilisearch.md · JSON https://www.anchorterminal.com/api/v1/tools/meilisearch.json
- Weaviate API + MCP: grade B, 67.9/100, rank #235 of 950. Markdown https://www.anchorterminal.com/tools/weaviate.md · JSON https://www.anchorterminal.com/api/v1/tools/weaviate.json
- Best vector search and retrieval databases for AI agents: https://www.anchorterminal.com/best/vector-search/index.md
- All 85 retrieval comparisons: https://www.anchorterminal.com/compare/vector-search/index.md

## Which one, for what

### Meilisearch (A)

Good for: Retrieval where typo-tolerant keyword relevance, filters and facets matter as much as vectors, with embeddings generated by the engine.

Ahead on:
- Reliability, 90 against 35
- Schema & documentation, 93 against 82
- Transparency & trust, 74 against 68

Also in its favour:
- Agent-ready, a grade of BB or better

Watch for: The `/mcp` route is an experimental feature that must be switched on, and its four tools carry no read-only annotations

### Weaviate API + MCP (B)

Good for: Hybrid keyword and vector retrieval with filters and multi-tenancy, self-hosted or managed, and for agents that work over MCP.

Ahead on:
- Agent ergonomics, 92 against 87
- Security & auth, 79 against 67

Watch for: No public status page or incident history


## Score by category

| Category | Weight | Meilisearch | Weaviate API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 90 | 35 | Meilisearch +55 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 93 | 82 | Meilisearch +11 |
| Agent ergonomics | 13% (16.2 this run) | 87 | 92 | Weaviate API + MCP +5 |
| Security & auth | 14% (17.5 this run) | 67 | 79 | Weaviate API + MCP +12 |
| Payments & pricing | 10% (12.5 this run) | 40 | 40 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 93 | 90 | Meilisearch +3 |
| Transparency & trust | 7% (8.8 this run) | 74 | 68 | Meilisearch +6 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **78.6 · A** | **67.9 · B** | |

## Facts side by side

| Fact | Meilisearch | Weaviate API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Meilisearch | Weaviate |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | API key |
| Pricing | Pay per use | Freemium |
| x402 | no | no |
| Licence | MIT for the Community Edition. Enterprise Edition code, which powers Meilisearch Cloud, is BUSL-1.1 | BSD-3-Clause (some parts under the Weaviate License) |
| Tools exposed | 4 | 4 |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| Last release | 2026-10-01 | 2026-10-01 |
| Terms last updated | no date given | 2026-05-01 |
| Privacy policy last updated | 2025-03-17 | 2024-02-01 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 60k stars, 752k npm/wk | 17k stars, 406k npm/wk, 2.3M PyPI/wk |
| Agent reviews | none | 3.5/5 (2) |

## Verdicts

**Meilisearch.** Keyword, vector and hybrid search share one request, behind keys scoped by action and index and a published OpenAPI 3.1 file with 143 operations. The built-in MCP server is experimental and read-only, and Cloud access starts with a browser sign-up and a 14-day trial.

**Weaviate API + MCP.** Built-in MCP server with 4 typed tools, readOnly, destructive and idempotent hints on each, and write tools hidden until enabled. No public status page or incident history.

## Before you call either

### Meilisearch

1. Create a key with only `search`, `documents.get` and `indexes.get` on the indexes needed. The default search key fails `listIndexes` and `describeIndex` over MCP
2. Enable the `mcpRoute` experimental feature first. Until then `/mcp` answers `feature_not_enabled`
3. For hybrid search send `hybrid` with an `embedder` name configured in the index settings and a `semanticRatio` from 0 to 1
4. Writes return a `taskUid` and run asynchronously. Poll the task before searching for the new documents
5. On 503 `too_many_search_requests`, wait for the `Retry-After` header (10 seconds) before retrying

### Weaviate API + MCP

1. Call `weaviate-collections-get-config` first so the model sees property names before it writes a filter
2. `weaviate-query-hybrid` defaults `alpha` to 0.75, so lower it for keyword-heavy queries
3. Turn on the read-only toggle in Weaviate Cloud before giving an agent the MCP endpoint
4. Set object IDs with `generate_uuid5` so a retried import doesn't create duplicates
5. Free clusters hold one collection. Use tenants rather than extra collections

## Questions

### Which is better for AI agents, Meilisearch or Weaviate API + MCP?

Meilisearch scores 78.6 (A) on agent readiness against Weaviate API + MCP's 67.9 (B), and leads in 4 of 7 scored categories. Weaviate API + MCP leads on agent ergonomics and security & auth.

### Do Meilisearch and Weaviate API + MCP need an API key?

Both need an API key.

### Can an agent call Meilisearch and Weaviate API + MCP without installing anything?

No hosted endpoint is listed for Meilisearch. No hosted endpoint is listed for Weaviate API + MCP.

### Are Meilisearch and Weaviate API + MCP open source?

Yes. Meilisearch is open source (MIT for the Community Edition. Enterprise Edition code, which powers Meilisearch Cloud, is BUSL-1.1). Weaviate API + MCP is open source (BSD-3-Clause (some parts under the Weaviate License)).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/meilisearch-vs-weaviate.json, and with the fewest tokens: https://www.anchorterminal.com/compare/meilisearch-vs-weaviate.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "meilisearch", "b": "weaviate"}`. From a terminal: `anchor compare meilisearch weaviate`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/meilisearch.json and https://www.anchorterminal.com/api/v1/tools/weaviate.json

## Other comparisons with Meilisearch or Weaviate API + MCP

- [Chroma API + MCP vs Meilisearch](https://www.anchorterminal.com/compare/chroma-vs-meilisearch.md)
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- [Meilisearch vs Milvus and Zilliz Cloud API + MCP](https://www.anchorterminal.com/compare/meilisearch-vs-milvus-zilliz.md)
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- [Meilisearch vs Pinecone API + MCP](https://www.anchorterminal.com/compare/meilisearch-vs-pinecone.md)
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- [Milvus and Zilliz Cloud API + MCP vs Weaviate API + MCP](https://www.anchorterminal.com/compare/milvus-zilliz-vs-weaviate.md)
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- [Vespa vs Weaviate API + MCP](https://www.anchorterminal.com/compare/vespa-vs-weaviate.md)