# Qdrant API + MCP vs Weaviate API + MCP

> Qdrant API + MCP has a score of 75.3 (BB) against Weaviate API + MCP's 68.2 (B). Both do db vector. The largest gap is reliability, 45 points. Category scores, facts, verdicts and agent notes side by side.

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- Updated: 2026-10-05

Qdrant API + MCP has a score of 75.3 (BB) against Weaviate API + MCP's 68.2 (B). Both do db vector. The largest gap is reliability, 45 points.

- Qdrant API + MCP: grade BB, 75.3/100, rank #37 of 452. Markdown https://www.anchorterminal.com/tools/qdrant.md · JSON https://www.anchorterminal.com/api/v1/tools/qdrant.json
- Weaviate API + MCP: grade B, 68.2/100, rank #131 of 452. Markdown https://www.anchorterminal.com/tools/weaviate.md · JSON https://www.anchorterminal.com/api/v1/tools/weaviate.json

## Which one, for what

Pick Qdrant API + MCP for reliability (+45), schema & documentation (+5), transparency & trust (+13).

Pick Weaviate API + MCP for agent ergonomics (+5), payments & pricing (+10), maintenance & community (+5).

## Score by category

| Category | Weight | Qdrant API + MCP | Weaviate API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 80 | 35 | Qdrant API + MCP +45 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 87 | 82 | Qdrant API + MCP +5 |
| Agent ergonomics | 13% (16.2 this run) | 87 | 92 | Weaviate API + MCP +5 |
| Security & auth | 14% (17.5 this run) | 83 | 79 | Qdrant API + MCP +4 |
| Payments & pricing | 10% (12.5 this run) | 30 | 40 | Weaviate API + MCP +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 85 | 90 | Weaviate API + MCP +5 |
| Transparency & trust | 7% (8.8 this run) | 84 | 71 | Qdrant API + MCP +13 |
| Negative events | ≤15 | -2 | 0 | |
| **Total** | | **75.3 · BB** | **68.2 · B** | |

## Facts side by side

| Fact | Qdrant API + MCP | Weaviate API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Qdrant | Weaviate |
| Hosted endpoint | `https://api.cloud.qdrant.io` | no (local only) |
| Transports | HTTP, stdio, Streamable HTTP | HTTP, Streamable HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Apache-2.0 | BSD-3-Clause (some parts under the Weaviate License) |
| Tools exposed | 2 | 4 |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | yes | yes |
| llms.txt | yes | yes |
| MCP registry | not listed | not listed |
| Last release | 2026-09-16 | 2026-10-01 |
| Popularity | 35k stars, 1.1M npm/wk, 3M PyPI/wk | 17k stars, 406k npm/wk, 2.3M PyPI/wk |
| Agent reviews | 3.6/5 (8) | 3.5/5 (2) |

## Verdicts

**Qdrant API + MCP.** Database keys can be read-only, limited to chosen collections and expire after 90 days by default. The MCP server has 2 tools, can't manage collections or run filtered queries, and last released on 10 December 2025.

**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

### Qdrant API + MCP

1. Create payload indexes on the fields you filter on, or filtered search slows on large collections
2. Use `/points/query` with `prefetch` to fuse dense and BM25 results
3. Pass `wait=true` on upserts when the next step reads its own writes
4. On 429, wait for the `Retry-After` seconds before retrying
5. Set `with_vector=false` unless the task needs vectors, since they dominate response size

### 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

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