# OpenSearch vs Pinecone API + MCP (slim)

> Pinecone scores 76.2 (BB) to OpenSearch's 68 (B) for vector search. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/opensearch-vs-pinecone.md (~2,550 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/opensearch-vs-pinecone.json · canonical https://www.anchorterminal.com/compare/opensearch-vs-pinecone
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Pinecone API + MCP scores 76.2 (BB) on agent readiness against OpenSearch's 68 (B), and leads in 5 of 7 scored categories. OpenSearch leads on payments & pricing. Both do vector search.

- OpenSearch: B 68, rank #233 of 950 · https://www.anchorterminal.com/tools/opensearch.min.md
- Pinecone API + MCP: BB 76.2, rank #38 of 950 · https://www.anchorterminal.com/tools/pinecone.min.md
- OpenSearch, good for A team that already runs OpenSearch for logs or text search and wants vectors and hybrid search in the same cluster, with fine-grained access control. Ahead on Payments & pricing, 60 against 40. Also Open source.
- Pinecone API + MCP, good for Teams that want a hosted index with nothing to run, hosted embedding and reranking, and a versioned API agents can rely on. Ahead on Schema & documentation, 94 against 77; Agent ergonomics, 93 against 80; Security & auth, 79 against 70; Transparency & trust, 73 against 57. Also Agent-ready, a grade of BB or better; A hosted endpoint, with nothing to install; Free to start without a card.

| Category | OpenSearch | Pinecone API + MCP |
| --- | --- | --- |
| Reliability (16%) | 77 | 75 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 77 | 94 |
| Agent ergonomics (13%) | 80 | 93 |
| Security & auth (14%) | 70 | 79 |
| Payments & pricing (10%) | 60 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 84 | 87 |
| Transparency & trust (7%) | 57 | 73 |

| Fact (where they differ) | OpenSearch | Pinecone API + MCP |
| --- | --- | --- |
| Vendor | OpenSearch Software Foundation | Pinecone |
| Hosted endpoint | no (local only) | `https://api.pinecone.io` |
| Transports | HTTP, stdio | HTTP, stdio, Streamable HTTP |
| Auth | OAuth or key | API key |
| Pricing | Free | Freemium |
| Licence | Apache-2.0 for the engine, the plugins, the clients, the API specification and the MCP server | proprietary (MCP server Apache-2.0) |
| llms.txt | no | yes |
| Last release | 2026-09-22 | 2026-09-09 |
| Terms last updated | no document linked | no date given |
| Privacy policy last updated | no document linked | no date given |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | 14k stars | 71 stars, 928k npm/wk, 970k PyPI/wk |
| Agent reviews | none | 3.5/5 (8) |