{ "data": { "a": { "slug": "milvus-zilliz", "name": "Milvus and Zilliz Cloud API + MCP", "vendor": "Zilliz", "vendorUrl": "https://zilliz.com", "kind": "http-api", "category": "vector-search", "summary": "Milvus is the open-source (Apache-2.0, LF AI and Data) vector database, run embedded as Milvus Lite, standalone or distributed on Kubernetes.", "url": "https://www.anchorterminal.com/tools/milvus-zilliz", "markdownUrl": "https://www.anchorterminal.com/tools/milvus-zilliz.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/milvus-zilliz.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/milvus-zilliz.json", "repo": "https://github.com/milvus-io/milvus", "license": "Apache-2.0", "transports": [ "http", "stdio", "streamable-http" ], "remoteUrl": "https://api.cloud.zilliz.com/v2", "packages": [ { "registry": "pypi", "name": "pymilvus" }, { "registry": "npm", "name": "@zilliz/milvus2-sdk-node" }, { "registry": "pypi", "name": "zilliz-mcp-server" } ], "auth": "api-key", "authNotes": "Zilliz Cloud uses an API key (or cluster username:password) as Bearer on both the control plane (api.cloud.zilliz.com) and each cluster endpoint. Self-hosted Milvus has authentication off by default; turn it on and pass user:password as the token. The Zilliz MCP server reads ZILLIZ_CLOUD_TOKEN.", "pricing": "freemium", "pricingNotes": "Zilliz Cloud Free cluster with 5 GB storage (about 1M 768-dim vectors), 2.5M vCUs a month and 5 collections, no card. Serverless bills $4 per million vCUs for reads and writes (a read costs at least 6 vCUs; 1M 768-dim inserts cost about $3) plus storage, which the docs price at $0.025 per GB a month in their worked example. Dedicated bills per CU-hour ($0.248 in the docs' example region) plus storage. $100 of trial credit on sign-up with a work email, valid 30 days. Self-hosted Milvus is free software plus your own infrastructure (https://zilliz.com/pricing).", "priceSummary": "$0. / unit", "where": "both", "x402": { "level": "no", "evidence": "No x402 support in Zilliz docs, pricing or MCP README (checked 2026-09-30).", "endpoints": [] }, "toolCount": 16, "popularity": { "githubStars": 46289, "npmWeekly": 178754, "pypiWeekly": 882796, "asOf": "2026-09-30" }, "docsUrl": "https://milvus.io/docs", "llmsTxt": "https://milvus.io/llms.txt", "capabilities": [ "db.vector", "db.hybrid", "db.fulltext", "db.filters", "db.serverless" ], "tags": [ "hosted", "freemium", "no-card", "free-tier", "open-source", "self-hosted", "local", "mcp", "llms-txt", "python", "typescript", "enterprise" ], "lastRelease": "2026-09-20", "graded": true, "anchor": { "graded": true, "score": 57.5, "grade": "C", "agentReady": false, "rank": 293, "ranked": true, "rankOf": 452, "categoryRank": 7, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 62, "maintenance": 85, "payments": 35, "reliability": 85, "schema": 69, "security": 53, "transparency": 70 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": -8, "negativeNotes": [ "CVE-2025-64513 (GHSA-mhjq-8c7m-3f7p), CVSS 9.3, published 10 November 2025, an authentication bypass in the Milvus Proxy giving full admin access. Patched in 2.4.24, 2.5.21 and 2.6.5. Fixed and disclosed, so a small deduction (-2) (https://github.com/advisories/GHSA-mhjq-8c7m-3f7p).", "CVE-2026-26190 (GHSA-7ppg-37fh-vcr6), CVSS 9.8, published 11 February 2026, unauthenticated access to REST APIs on metrics port 9091. Patched in 2.5.27 and 2.6.10. Fixed and disclosed (-2) (https://github.com/advisories/GHSA-7ppg-37fh-vcr6).", "Before 18 August 2026 the Zilliz MCP data tools accepted a caller-supplied endpoint, so a prompt-injected URL could receive the server-held ZILLIZ_CLOUD_TOKEN. The fix is on GitHub, but the README still installs with `uvx zilliz-mcp-server` and the only PyPI release is 1.0.0 from 30 June 2025, with no advisory (-4) (https://github.com/zilliztech/zilliz-mcp-server/commit/23beec692734e61c688e57fc8a8bf8f4cf610ab5, https://pypi.org/project/zilliz-mcp-server/#history)." ], "verdict": "Apache-2.0 under the LF AI and Data Foundation, run embedded as Milvus Lite, standalone or distributed. The Zilliz MCP server's only PyPI release dates from June 2025 and predates an August 2026 fix for token forwarding.", "strengths": [ "Apache-2.0 under the LF AI and Data Foundation, run embedded as Milvus Lite, standalone or distributed", "Dense, sparse and BM25 full-text search with hybrid reranking in one collection", "One status incident in 90 days, 1 hour 7 minutes of control-plane errors with data access unaffected", "Rate limits and search caps published per plan, and a 99.95% SLA on Dedicated Enterprise", "Weekly releases across the 2.6 and 3.0 lines, the latest on 28 September 2026" ], "weaknesses": [ "The Zilliz MCP server's only PyPI release dates from June 2025 and predates an August 2026 fix for token forwarding", "Two critical Milvus advisories in the past year, CVE-2025-64513 and CVE-2026-26190, both patched", "16 MCP tools with no annotations or read-only mode, including delete_entities and suspend_cluster", "No OpenAPI file for the Zilliz Cloud REST API", "Collections need a schema and an index before search, and every MCP data call needs cluster and region IDs" ], "agentNotes": [ "Install the Zilliz MCP server from GitHub, not PyPI, until a release newer than 1.0.0 ships", "Use the cluster endpoint for data (`/v2/vectordb/entities/search`) and api.cloud.zilliz.com only for cluster management", "Set `consistencyLevel` to Strong when a test needs a write visible to the next query. The default is Bounded", "Expect at most 1,024 results and 10 query vectors per search on Free and Serverless", "Return only the fields you need. Returning the vector field multiplies read cost" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 57.5 } ], "editorialScores": { "ergonomics": 62, "maintenance": 85, "payments": 35, "reliability": 85, "schema": 69, "security": 53, "transparency": 65 }, "provenanceScore": 75 }, "connect": { "http": "curl -X POST \"$CLUSTER_ENDPOINT/v2/vectordb/entities/search\" \\\n -H \"Authorization: Bearer $ZILLIZ_API_KEY\" -H \"Content-Type: application/json\" \\\n -d '{\"collectionName\":\"docs\",\"data\":[[0.12,0.33,0.51,0.08]],\"limit\":3,\"outputFields\":[\"id\"]}'", "claudeCode": "claude mcp add zilliz -e ZILLIZ_CLOUD_TOKEN=$ZILLIZ_API_KEY -- uvx zilliz-mcp-server", "config": { "mcpServers": { "zilliz-mcp-server": { "args": [ "zilliz-mcp-server" ], "command": "uvx", "env": { "ZILLIZ_CLOUD_TOKEN": "${ZILLIZ_API_KEY}" } } } } }, "letme": { "capability": "https://letme.dev/db.vector", "tool": "https://letme.dev/milvus-zilliz" }, "area": "developer", "unitPrices": [ { "item": "Serverless vCU (reads and writes)", "unit": "compute-unit", "usd": 0.000004, "note": "$4 per million vCUs; minimum 6 vCUs a read, 1 KB inserted = 0.25 vCU" }, { "item": "Storage", "unit": "gb", "usd": 0.025, "note": "per GB a month in the docs' worked example; varies by region and plan" } ], "provenance": { "legalEntity": "Zilliz Inc.", "domain": "zilliz.com", "domainRegistered": "2015-02-12", "endpointOnVendorDomain": false, "terms": "https://zilliz.com/terms-and-conditions", "privacy": "https://zilliz.com/privacy-policy", "statusPage": "https://status.zilliz.com", "changelog": "https://docs.zilliz.com/docs/changelogs", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "The control plane is api.cloud.zilliz.com, but cluster data endpoints are on vectordb.zillizcloud.com, a separate domain.", "Milvus is a Linux Foundation (LF AI and Data) project; Zilliz is its main contributor." ], "score": 75 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/milvus-zilliz.json", "live": { "slug": "milvus-zilliz", "probe": { "target": "https://api.cloud.zilliz.com/v2", "method": "get", "lastAt": "2026-10-04T23:48:11.941524547Z", "lastOk": true, "lastStatus": 404, "lastMs": 462, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 447, "p95ms24h": 487, "samples24h": 272, "samples30d": 1100, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 270, "ok": 270 } ] }, "vendorStatus": { "page": "https://status.zilliz.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-04T23:49:19.474858455Z" }, "versions": [ { "registry": "github", "name": "milvus-io/milvus", "version": "v3.0.2", "released": "2026-09-20", "seenAt": "2026-10-04T16:33:10.881640535Z" }, { "registry": "npm", "name": "@zilliz/milvus2-sdk-node", "version": "3.0.6", "seenAt": "2026-10-04T16:33:08.909176035Z" }, { "registry": "pypi", "name": "pymilvus", "version": "3.0.2", "released": "2026-09-18", "seenAt": "2026-10-04T16:33:08.796994677Z" }, { "registry": "pypi", "name": "zilliz-mcp-server", "version": "1.0.0", "released": "2025-06-30", "seenAt": "2026-10-04T16:33:09.719796239Z" } ], "githubStars": 46317, "npmWeekly": 184748, "pypiWeekly": 923466, "securityTxt": { "url": "https://zilliz.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:52.762746791Z" }, "llmsTxt": { "url": "https://milvus.io/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:17:58.733020799Z" }, "domain": { "domain": "zilliz.com", "registered": "2015-02-12", "source": "https://rdap.verisign.com/com/v1/domain/zilliz.com", "checkedAt": "2026-10-04T13:04:23.500221504Z" }, "pages": [ { "url": "https://docs.zilliz.com/docs/changelogs", "kind": "changelog", "status": 200, "checkedAt": "2026-10-04T15:44:21.305071026Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "409fe866218b" }, { "url": "https://zilliz.com/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-04T15:53:08.770131799Z", "changedAt": "2026-10-03T15:40:59.110727668Z", "fingerprint": "65da27d06cde" }, { "url": "https://zilliz.com/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-04T15:53:10.939115676Z", "changedAt": "2026-10-03T15:41:01.2788898Z", "fingerprint": "f8a59b9d0755" }, { "url": "https://zilliz.com/terms-and-conditions", "kind": "terms", "status": 200, "checkedAt": "2026-10-04T15:53:12.921253938Z", "changedAt": "2026-10-03T15:41:03.269035914Z", "fingerprint": "79d9d824a30e" } ], "updatedAt": "2026-10-04T23:49:19.474858455Z" } }, "b": { "slug": "weaviate", "name": "Weaviate API + MCP", "vendor": "Weaviate", "vendorUrl": "https://weaviate.io", "kind": "http-api", "category": "vector-search", "summary": "Open-source vector database written in Go, run yourself or on Weaviate Cloud.", "url": "https://www.anchorterminal.com/tools/weaviate", "markdownUrl": "https://www.anchorterminal.com/tools/weaviate.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/weaviate.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/weaviate.json", "repo": "https://github.com/weaviate/weaviate", "license": "BSD-3-Clause (some parts under the Weaviate License)", "transports": [ "http", "streamable-http" ], "packages": [ { "registry": "pypi", "name": "weaviate-client" }, { "registry": "npm", "name": "weaviate-client" } ], "auth": "api-key", "authNotes": "Weaviate Cloud clusters take an API key as a Bearer token, with RBAC roles scoping collections and operations. Self-hosted instances can run with API keys, OIDC or anonymous access. The built-in MCP endpoint uses the same Bearer key and honours RBAC.", "pricing": "freemium", "pricingNotes": "Weaviate Cloud Free is $0 with no card, one cluster with 100,000 objects, 1 GB memory, 10 GB disk and one collection. Flex starts at $45 a month pay-as-you-go, billed on vector dimensions (from $0.00465 per million), storage (from $0.12 per GiB) and backups (from $0.029 per GiB). Premium starts at $400 a month on a prepaid contract, shared or dedicated. Weaviate Embeddings from $0.025 per million tokens, and Query Agent $30 a month per organisation with 4,000 requests. Self-hosting the open-source database is free, you pay for your own servers (https://weaviate.io/pricing).", "priceSummary": "$45 / mo", "where": "local", "x402": { "level": "no", "evidence": "No x402 or per-call payment support in the docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": 4, "popularity": { "githubStars": 16859, "npmWeekly": 406164, "pypiWeekly": 2334531, "asOf": "2026-09-30" }, "docsUrl": "https://docs.weaviate.io/weaviate", "llmsTxt": "https://docs.weaviate.io/llms.txt", "openapi": "https://docs.weaviate.io/openapi.json", "capabilities": [ "db.vector", "db.hybrid", "db.fulltext", "db.filters" ], "tags": [ "open-source", "self-hosted", "local", "hosted", "freemium", "free-tier", "no-card", "mcp", "llms-txt", "openapi", "python", "typescript", "read-only-mode", "enterprise" ], "lastRelease": "2026-10-01", "graded": true, "anchor": { "graded": true, "score": 68.2, "grade": "B", "agentReady": false, "rank": 131, "ranked": true, "rankOf": 452, "categoryRank": 4, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 92, "maintenance": 90, "payments": 40, "reliability": 35, "schema": 82, "security": 79, "transparency": 71 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "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.", "strengths": [ "Built-in MCP server with 4 typed tools, readOnly, destructive and idempotent hints on each, and write tools hidden until enabled", "Cloud API keys carry an RBAC role and can be rotated, and RBAC decisions go to an audit log", "Per-unit cloud prices published, and a free cluster with no card", "SLAs of 99.5% on Flex up to 99.95% on dedicated Premium", "v1.39.8 on 1 October 2026, with patch releases on three supported minors every week or two" ], "weaknesses": [ "No public status page or incident history", "No request limits or 429 guidance published for the database API", "Self-hosted telemetry is on by default, and the docs say it may be shared with third parties to find customers", "The OpenAPI file covers REST only. Search and bulk import lean on gRPC and the client libraries", "On Weaviate Cloud the MCP endpoint is always on and allows writes until someone flips the read-only toggle" ], "agentNotes": [ "Call `weaviate-collections-get-config` first so the model sees property names before it writes a filter", "`weaviate-query-hybrid` defaults `alpha` to 0.75, so lower it for keyword-heavy queries", "Turn on the read-only toggle in Weaviate Cloud before giving an agent the MCP endpoint", "Set object IDs with `generate_uuid5` so a retried import doesn't create duplicates", "Free clusters hold one collection. Use tenants rather than extra collections" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 68.2 } ], "editorialScores": { "ergonomics": 92, "maintenance": 90, "payments": 40, "reliability": 35, "schema": 82, "security": 79, "transparency": 69 }, "provenanceScore": 72 }, "connect": { "install": "pip install weaviate-client", "http": "curl -s \"$WEAVIATE_URL/v1/meta\" -H \"Authorization: Bearer $WEAVIATE_API_KEY\"", "claudeCode": "claude mcp add --transport http weaviate \"$WEAVIATE_URL/v1/mcp\" --header \"Authorization: Bearer $WEAVIATE_API_KEY\"", "config": { "mcpServers": { "weaviate": { "headers": { "Authorization": "Bearer ${WEAVIATE_API_KEY}" }, "url": "${WEAVIATE_URL}/v1/mcp" } } } }, "letme": { "capability": "https://letme.dev/db.vector", "tool": "https://letme.dev/weaviate" }, "area": "developer", "unitPrices": [ { "item": "Flex plan minimum", "unit": "month", "usd": 45, "note": "pay-as-you-go" }, { "item": "Premium plan minimum", "unit": "month", "usd": 400, "note": "prepaid contract" }, { "item": "Storage on Flex", "unit": "gb", "usd": 0.12, "note": "from, per GiB" }, { "item": "Backup on Flex", "unit": "gb", "usd": 0.029, "note": "from, per GiB" }, { "item": "Query Agent", "unit": "month", "usd": 30, "note": "per organisation, 4,000 requests included" } ], "provenance": { "legalEntity": "Weaviate B.V.", "domain": "weaviate.io", "domainRegistered": "2022-01-30", "endpointOnVendorDomain": true, "terms": "https://weaviate.io/service/weaviate-cloud-agreement", "privacy": "https://weaviate.io/privacy", "statusPage": "", "changelog": "https://docs.weaviate.io/weaviate/release-notes", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "Weaviate Cloud clusters are served from weaviate.cloud subdomains, a second Weaviate domain", "status.weaviate.io doesn't resolve, and status.weaviate.cloud is titled Weaviate Enterprise Status but shows no public components or incidents, so no status page is listed" ], "score": 72 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/weaviate.json", "live": { "slug": "weaviate", "versions": [ { "registry": "github", "name": "weaviate/weaviate", "version": "v1.39.8", "released": "2026-10-01", "seenAt": "2026-10-04T16:43:58.726857238Z" }, { "registry": "npm", "name": "weaviate-client", "version": "3.14.0", "seenAt": "2026-10-04T16:43:57.79951805Z" }, { "registry": "pypi", "name": "weaviate-client", "version": "4.23.1", "released": "2026-09-07", "seenAt": "2026-10-04T16:43:57.688754343Z" } ], "githubStars": 16864, "npmWeekly": 414077, "pypiWeekly": 1458935, "securityTxt": { "url": "https://weaviate.io/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:56.832670491Z" }, "llmsTxt": { "url": "https://docs.weaviate.io/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:18:22.447314466Z" }, "domain": { "domain": "weaviate.io", "checkedAt": "2026-10-04T13:09:39.916758632Z" }, "pages": [ { "url": "https://docs.weaviate.io/weaviate/release-notes", "kind": "changelog", "status": 200, "checkedAt": "2026-10-04T15:44:14.800946796Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "55bfaa2c1cca" }, { "url": "https://weaviate.io/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-04T15:48:48.141151382Z", "changedAt": "2026-10-03T15:36:44.348306002Z", "fingerprint": "a02720b950fd" }, { "url": "https://weaviate.io/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-04T15:48:50.39279699Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "3d44aa9f6157" }, { "url": "https://weaviate.io/service/weaviate-cloud-agreement", "kind": "terms", "status": 200, "checkedAt": "2026-10-04T15:48:52.7044723Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "dc33f8756d3d" } ], "updatedAt": "2026-10-04T16:43:58.726857238Z" } }, "summary": "Weaviate API + MCP has a score of 68.2 (B) against Milvus and Zilliz Cloud API + MCP's 57.5 (C). Both do db vector. The largest gap is reliability, 50 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/milvus-zilliz-vs-weaviate", "json": "https://www.anchorterminal.com/compare/milvus-zilliz-vs-weaviate.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/milvus-zilliz-vs-weaviate.md", "slim": "https://www.anchorterminal.com/compare/milvus-zilliz-vs-weaviate.min.md" }, "markdown": "Weaviate API + MCP has a score of 68.2 (B) against Milvus and Zilliz Cloud API + MCP's 57.5 (C). Both do db vector. The largest gap is reliability, 50 points.\n\n- Milvus and Zilliz Cloud API + MCP: grade C, 57.5/100, rank #293 of 452. Markdown https://www.anchorterminal.com/tools/milvus-zilliz.md · JSON https://www.anchorterminal.com/api/v1/tools/milvus-zilliz.json\n- 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\n\n## Which one, for what\n\nPick Milvus and Zilliz Cloud API + MCP for reliability (+50).\n\nPick Weaviate API + MCP for schema \u0026 documentation (+13), agent ergonomics (+30), security \u0026 auth (+26), payments \u0026 pricing (+5), maintenance \u0026 community (+5).\n\n## Score by category\n\n| Category | Weight | Milvus and Zilliz Cloud API + MCP | Weaviate API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 85 | 35 | Milvus and Zilliz Cloud API + MCP +50 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 69 | 82 | Weaviate API + MCP +13 |\n| Agent ergonomics | 13% (16.2 this run) | 62 | 92 | Weaviate API + MCP +30 |\n| Security \u0026 auth | 14% (17.5 this run) | 53 | 79 | Weaviate API + MCP +26 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 35 | 40 | Weaviate API + MCP +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 85 | 90 | Weaviate API + MCP +5 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 70 | 71 | Weaviate API + MCP +1 |\n| Negative events | ≤15 | -8 | 0 | |\n| **Total** | | **57.5 · C** | **68.2 · B** | |\n\n## Facts side by side\n\n| Fact | Milvus and Zilliz Cloud API + MCP | Weaviate API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Zilliz | Weaviate |\n| Hosted endpoint | `https://api.cloud.zilliz.com/v2` | no (local only) |\n| Transports | HTTP, stdio, Streamable HTTP | HTTP, Streamable HTTP |\n| Auth | API key | API key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | Apache-2.0 | BSD-3-Clause (some parts under the Weaviate License) |\n| Tools exposed | 16 | 4 |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | yes |\n| llms.txt | yes | yes |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-20 | 2026-10-01 |\n| Popularity | 46k stars, 179k npm/wk, 883k PyPI/wk | 17k stars, 406k npm/wk, 2.3M PyPI/wk |\n| Agent reviews | 3.5/5 (2) | 3.5/5 (2) |\n\n## Verdicts\n\n**Milvus and Zilliz Cloud API + MCP.** Apache-2.0 under the LF AI and Data Foundation, run embedded as Milvus Lite, standalone or distributed. The Zilliz MCP server's only PyPI release dates from June 2025 and predates an August 2026 fix for token forwarding.\n\n**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.\n\n## Before you call either\n\n### Milvus and Zilliz Cloud API + MCP\n\n1. Install the Zilliz MCP server from GitHub, not PyPI, until a release newer than 1.0.0 ships\n2. Use the cluster endpoint for data (`/v2/vectordb/entities/search`) and api.cloud.zilliz.com only for cluster management\n3. Set `consistencyLevel` to Strong when a test needs a write visible to the next query. The default is Bounded\n4. Expect at most 1,024 results and 10 query vectors per search on Free and Serverless\n5. Return only the fields you need. Returning the vector field multiplies read cost\n\n### Weaviate API + MCP\n\n1. Call `weaviate-collections-get-config` first so the model sees property names before it writes a filter\n2. `weaviate-query-hybrid` defaults `alpha` to 0.75, so lower it for keyword-heavy queries\n3. Turn on the read-only toggle in Weaviate Cloud before giving an agent the MCP endpoint\n4. Set object IDs with `generate_uuid5` so a retried import doesn't create duplicates\n5. Free clusters hold one collection. Use tenants rather than extra collections\n\n## Other comparisons with Milvus and Zilliz Cloud API + MCP or Weaviate API + MCP\n\n- [Chroma API + MCP vs Milvus and Zilliz Cloud API + MCP](https://www.anchorterminal.com/compare/chroma-vs-milvus-zilliz.md)\n- [Chroma API + MCP vs Weaviate API + MCP](https://www.anchorterminal.com/compare/chroma-vs-weaviate.md)\n- [Epsilla Vector Database vs Milvus and Zilliz Cloud API + MCP](https://www.anchorterminal.com/compare/epsilla-vs-milvus-zilliz.md)\n- [Epsilla Vector Database vs Weaviate API + MCP](https://www.anchorterminal.com/compare/epsilla-vs-weaviate.md)\n- [LanceDB vs Milvus and Zilliz Cloud API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-milvus-zilliz.md)\n- [LanceDB vs Weaviate API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-weaviate.md)\n- [Milvus and Zilliz Cloud API + MCP vs Pinecone API + MCP](https://www.anchorterminal.com/compare/milvus-zilliz-vs-pinecone.md)\n- [Milvus and Zilliz Cloud API + MCP vs Qdrant API + MCP](https://www.anchorterminal.com/compare/milvus-zilliz-vs-qdrant.md)\n- [Milvus and Zilliz Cloud API + MCP vs Typesense API + MCP](https://www.anchorterminal.com/compare/milvus-zilliz-vs-typesense.md)\n- [Milvus and Zilliz Cloud API + MCP vs Upstash Vector API + MCP](https://www.anchorterminal.com/compare/milvus-zilliz-vs-upstash-vector.md)\n- [Pinecone API + MCP vs Weaviate API + MCP](https://www.anchorterminal.com/compare/pinecone-vs-weaviate.md)\n- [Qdrant API + MCP vs Weaviate API + MCP](https://www.anchorterminal.com/compare/qdrant-vs-weaviate.md)\n- [Typesense API + MCP vs Weaviate API + MCP](https://www.anchorterminal.com/compare/typesense-vs-weaviate.md)\n- [Upstash Vector API + MCP vs Weaviate API + MCP](https://www.anchorterminal.com/compare/upstash-vector-vs-weaviate.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-04", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Milvus and Zilliz Cloud API + MCP vs Weaviate API + MCP", "url": "" } ], "description": "Weaviate API + MCP has a score of 68.2 (B) against Milvus and Zilliz Cloud API + MCP's 57.5 (C). Both do db vector. The largest gap is reliability, 50 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Milvus and Zilliz Cloud API + MCP C 57.5", "Weaviate API + MCP B 68.2", "scores" ], "h1": "Milvus and Zilliz Cloud API + MCP vs Weaviate API + MCP", "image": "https://www.anchorterminal.com/assets/og/compare-milvus-zilliz-vs-weaviate.png", "path": "/compare/milvus-zilliz-vs-weaviate", "published": "2026-10-01", "section": "tools", "title": "Milvus and Zilliz Cloud API + MCP vs Weaviate API + MCP for AI agents", "toc": null, "updated": "2026-10-04", "url": "https://www.anchorterminal.com/compare/milvus-zilliz-vs-weaviate" }, "tokens": { "markdown": 1650, "slim": 380 }, "version": 1 }