{
  "data": {
    "a": {
      "slug": "elasticsearch",
      "name": "Elasticsearch",
      "vendor": "Elastic",
      "vendorUrl": "https://www.elastic.co",
      "kind": "http-api",
      "category": "vector-search",
      "summary": "Elasticsearch is Elastic's search engine and vector database, with keyword, vector and hybrid search over a REST API. Agents reach it through that API or the Agent Builder MCP server on Elastic Cloud and Elastic Stack 9.2 or later.",
      "url": "https://www.anchorterminal.com/tools/elasticsearch",
      "markdownUrl": "https://www.anchorterminal.com/tools/elasticsearch.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/elasticsearch.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/elasticsearch.json",
      "repo": "https://github.com/elastic/elasticsearch",
      "license": "AGPL-3.0, SSPL-1.0 or Elastic Licence 2.0 at the user's choice for most source. The `x-pack` folder is under Elastic Licence 2.0 only. Elastic Cloud is a proprietary service under Elastic's terms",
      "transports": [
        "http"
      ],
      "packages": [
        {
          "registry": "npm",
          "name": "@elastic/elasticsearch"
        },
        {
          "registry": "pypi",
          "name": "elasticsearch"
        }
      ],
      "auth": "mixed",
      "authNotes": "Self-serve. The REST API takes `Authorization: ApiKey \u003ckey\u003e`, with keys created in Kibana or by `POST /_security/api_key` and limited by role descriptors and an expiry. The Agent Builder MCP server takes the same kind of key, which needs the `feature_agentBuilder.read` Kibana privilege, or OAuth 2.1 on Serverless projects, where a registered client and a browser consent give each user a revocable connection.",
      "pricing": "usage",
      "pricingNotes": "Serverless bills by use, with search from $0.09 a VCU-hour, ingest from $0.14, storage from $0.047 a GB a month and egress from $0.05 a GB. Agent Builder has 1,000 free executions a month, then from $0.025 each. A 14-day Elastic Cloud trial needs no credit card. Self-managed Elasticsearch is free to run under its source licences (https://www.elastic.co/pricing/serverless-search, checked 2026-10-08).",
      "priceSummary": "$0.09 / unit",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs index, the Serverless OpenAPI file or the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": 3136798,
        "pypiWeekly": 7755257,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://www.elastic.co/docs/solutions/search",
      "llmsTxt": "https://www.elastic.co/docs/llms.txt",
      "openapi": "https://www.elastic.co/docs/api/doc/elasticsearch-serverless.json",
      "capabilities": [
        "db.vector",
        "db.hybrid",
        "db.fulltext",
        "db.filters",
        "db.serverless"
      ],
      "tags": [
        "hosted",
        "usage",
        "free-trial",
        "no-card",
        "open-source",
        "self-hosted",
        "mcp",
        "oauth",
        "openapi",
        "llms-txt",
        "typescript",
        "python",
        "status-page",
        "bug-bounty",
        "soc2",
        "sla"
      ],
      "lastRelease": "2026-10-06",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 67.7,
        "grade": "B",
        "agentReady": false,
        "rank": 224,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 6,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 77,
          "maintenance": 83,
          "payments": 35,
          "reliability": 62,
          "schema": 88,
          "security": 72,
          "transparency": 71
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": -2,
        "negativeNotes": [
          "Sixteen Elasticsearch security advisories were posted between 25 September and 6 October 2026. The one we read, ESA-2026-199 (CVE-2026-103009, CVSS 7.1), is an authorisation bypass in cross-cluster search on self-managed clusters, fixed in 8.19.23, 9.4.8 and 9.5.5, and Elastic says Serverless is not affected. Fixed and disclosed, so a small deduction (https://discuss.elastic.co/c/announcements/security-announcements/31)."
        ],
        "verdict": "Keyword, dense and sparse vector, and hybrid search with rank fusion sit behind one OpenAPI-described REST API, with API keys scoped to indices and privileges. The status page lists more than 20 incidents marked major since July 2026, and Elasticsearch 9.5.0 returned incorrect results for some queries without raising an error.",
        "bestFor": "Retrieval that needs keyword relevance, filters and vectors in one query, and teams already running Elastic for logs or security.",
        "strengths": [
          "OpenAPI 3.0.3 file for the Serverless API with 311 operations, plus llms.txt and a Markdown twin of every docs page",
          "API keys take role descriptors that limit indices and privileges, with an expiry, and the MCP server accepts OAuth 2.1 on Serverless",
          "Agent Builder MCP server is generally available on Serverless and on Elastic Stack 9.3 and later",
          "14-day Elastic Cloud trial with no credit card, and unit prices published for Serverless",
          "Public bug bounty on HackerOne, CVE Numbering Authority status and dated security advisories"
        ],
        "weaknesses": [
          "More than 20 status notices marked major between 10 July and 8 October 2026, three of them regional service incidents",
          "Elasticsearch 9.5.0 (29 July 2026) returned incorrect results for some `must_not` queries with no error, fixed in 9.5.1 and 9.5.2",
          "No request rate limit with numbers was found in the reviewed documentation",
          "The 99.95 per cent Serverless SLA applies only at Platinum or Enterprise subscription level",
          "The monthly terms forbid use of the cloud service for benchmarking, competitive or comparative purposes",
          "Search compute on Serverless does not scale to zero, so an idle project is still billed a baseline"
        ],
        "agentNotes": [
          "Send `Authorization: ApiKey \u003ckey\u003e` to the project's Elasticsearch URL. The MCP server is on the Kibana URL at `/api/agent_builder/mcp`",
          "Create the MCP key with `feature_agentBuilder.read` and only the index patterns needed, or the endpoint answers 403",
          "On 429, wait and retry with exponential backoff. Do not set short client timeouts, because a retried request joins the back of the queue",
          "Page past 10,000 hits with `search_after`, not `from` and `size`",
          "Tool calls made directly through the Tools API skip Agent Builder's confirmation prompts, so restrict the key instead"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 67.7
          }
        ],
        "editorialScores": {
          "ergonomics": 77,
          "maintenance": 83,
          "payments": 35,
          "reliability": 62,
          "schema": 88,
          "security": 72,
          "transparency": 70
        },
        "provenanceScore": 71
      },
      "connect": {
        "install": "npm install @elastic/elasticsearch",
        "http": "curl -X GET \"${ES_URL}/_cat/indices?v=true\" \\\n  -H \"Authorization: ApiKey ${API_KEY}\"",
        "config": {
          "mcpServers": {
            "elastic-agent-builder": {
              "args": [
                "mcp-remote",
                "${KIBANA_URL}/api/agent_builder/mcp",
                "--header",
                "Authorization:${AUTH_HEADER}"
              ],
              "command": "npx",
              "env": {
                "AUTH_HEADER": "ApiKey ${API_KEY}",
                "KIBANA_URL": "${KIBANA_URL}"
              }
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/db.vector",
        "tool": "https://letme.dev/elasticsearch"
      },
      "area": "developer",
      "unitPrices": [
        {
          "item": "Serverless search compute, VCU-hour",
          "unit": "compute-unit",
          "usd": 0.09,
          "note": "Quoted as a floor on the pricing page"
        },
        {
          "item": "Serverless ingest compute, VCU-hour",
          "unit": "compute-unit",
          "usd": 0.14,
          "note": "Quoted as a floor on the pricing page"
        },
        {
          "item": "Serverless storage",
          "unit": "gb-month",
          "usd": 0.047,
          "note": "Quoted as a floor on the pricing page"
        },
        {
          "item": "Serverless egress",
          "unit": "gb",
          "usd": 0.05,
          "note": "Quoted as a floor on the pricing page"
        },
        {
          "item": "Agent Builder execution",
          "unit": "call",
          "usd": 0.025,
          "note": "After 1,000 free executions a month, quoted as a floor"
        }
      ],
      "provenance": {
        "legalEntity": "Elasticsearch B.V.",
        "domain": "elastic.co",
        "domainRegistered": "",
        "endpointOnVendorDomain": true,
        "terms": "https://www.elastic.co/agreements/cloud-monthly",
        "privacy": "https://www.elastic.co/legal/product-privacy-statement",
        "statusPage": "https://status.elastic.co",
        "changelog": "https://www.elastic.co/docs/release-notes/elasticsearch",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "The Cloud Monthly Terms of Service (effective 12 September 2025) name the contracting entity by customer location, Elasticsearch, Inc. for the United States and Elasticsearch B.V. or Elastic International B.V. elsewhere. The page is a cover that links the PDF.",
          "Customers with an order form are under the Elastic Cloud Service Subscription Agreement of 5 March 2026 at https://www.elastic.co/agreements/global/cloud-services.",
          "The Product Privacy Statement (7 September 2026) is issued by Elastic N.V. and its subsidiaries and covers Elastic Cloud Hosted, Serverless and self-managed software. The General Privacy Statement covers only websites and events.",
          "www.elastic.co/.well-known/security.txt returned 404. Reports go to HackerOne or security@elastic.co.",
          "No RDAP service answered for elastic.co, so the registration date is not recorded.",
          "Project endpoints are on Elastic Cloud hostnames that we did not call. `endpointOnVendorDomain` rests on the docs, not on a request."
        ],
        "score": 71
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/elasticsearch.json",
      "live": {
        "slug": "elasticsearch",
        "vendorStatus": {
          "page": "https://status.elastic.co",
          "indicator": "major",
          "summary": "Partial System Outage",
          "checkedAt": "2026-10-09T11:39:12.295314988Z"
        },
        "updatedAt": "2026-10-09T11:39:12.295314988Z"
      }
    },
    "answer": "Elasticsearch scores 67.7 (B) on agent readiness against LanceDB's 65.4 (B), and leads in 4 of 7 scored categories. LanceDB leads on reliability, maintenance \u0026 community and transparency \u0026 trust.",
    "b": {
      "slug": "lancedb",
      "name": "LanceDB",
      "vendor": "LanceDB",
      "vendorUrl": "https://www.lancedb.com",
      "kind": "sdk",
      "category": "vector-search",
      "summary": "Open-source embedded database on the Lance columnar format.",
      "url": "https://www.anchorterminal.com/tools/lancedb",
      "markdownUrl": "https://www.anchorterminal.com/tools/lancedb.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/lancedb.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/lancedb.json",
      "repo": "https://github.com/lancedb/lancedb",
      "license": "Apache-2.0",
      "transports": [
        "http"
      ],
      "packages": [
        {
          "registry": "pypi",
          "name": "lancedb"
        },
        {
          "registry": "npm",
          "name": "@lancedb/lancedb"
        }
      ],
      "auth": "none",
      "authNotes": "The open-source library needs no auth. It uses your object-store credentials when the table lives in S3, GCS or Azure. LanceDB Enterprise takes an API key in the `x-api-key` header (or OAuth credentials), plus `x-lancedb-database` when the endpoint is shared.",
      "pricing": "freemium",
      "pricingNotes": "The open-source library is free under Apache-2.0, and you pay only for the disk or object storage your tables sit on. LanceDB Enterprise is priced on request and the pricing page is a contact form. A LanceDB Cloud dashboard still exists at cloud.lancedb.com but the current docs only cover OSS and Enterprise, and no public rate card was found (https://lancedb.com/pricing).",
      "priceSummary": "Freemium",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No payment support. The library is free and Enterprise is sold by contract.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 11561,
        "npmWeekly": 921555,
        "pypiWeekly": 1944105,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.lancedb.com",
      "llmsTxt": "https://docs.lancedb.com/llms.txt",
      "capabilities": [
        "db.vector",
        "db.hybrid",
        "db.fulltext",
        "db.filters"
      ],
      "tags": [
        "open-source",
        "self-hosted",
        "local",
        "enterprise",
        "llms-txt",
        "python",
        "typescript",
        "free-tier"
      ],
      "lastRelease": "2026-09-17",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 65.4,
        "grade": "B",
        "agentReady": false,
        "rank": 292,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 7,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 74,
          "maintenance": 93,
          "payments": 20,
          "reliability": 75,
          "schema": 81,
          "security": 44,
          "transparency": 79
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Embedded, no server, and tables can live directly in S3, GCS or Azure storage. No self-serve hosted API. Enterprise is sold through a contact form.",
        "bestFor": "Agents whose code can import a library and keep retrieval data in object storage, from notebooks to multimodal datasets.",
        "strengths": [
          "Embedded, no server, and tables can live directly in S3, GCS or Azure storage",
          "Four releases since late July, v0.39.0 on 17 September 2026, with passing CI on main",
          "Release notes with Breaking Changes and Deprecations sections, and minor-version bumps for breaking changes",
          "Apache-2.0 with no telemetry module in the library",
          "Python, TypeScript, Rust and Java clients from one version tag"
        ],
        "weaknesses": [
          "No self-serve hosted API. Enterprise is sold through a contact form",
          "No official MCP server, only a 3-tool reference example",
          "The docs' OpenAPI link for the Enterprise REST API returns 404",
          "Still 0.x, and Node 22 or later is now required",
          "No SECURITY.md in the repository"
        ],
        "agentNotes": [
          "Use it through the Python or TypeScript library. There's no public endpoint an agent can call without an Enterprise deployment",
          "Build an FTS index before calling `query_type=\"hybrid\"`, or hybrid search has no keyword side",
          "Call `optimize()` after many small writes, since each write adds a new file version",
          "Use `select()` to drop the vector column from results unless the task needs it",
          "On object storage, set a read consistency interval if several processes write the same table"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 65.4
          }
        ],
        "editorialScores": {
          "ergonomics": 74,
          "maintenance": 93,
          "payments": 20,
          "reliability": 75,
          "schema": 81,
          "security": 44,
          "transparency": 75
        },
        "provenanceScore": 82
      },
      "connect": {
        "install": "pip install lancedb",
        "http": "curl -s \"$LANCEDB_URI/v1/tables\" -H \"x-api-key: $LANCEDB_API_KEY\" -H \"x-lancedb-database: $LANCEDB_DATABASE\""
      },
      "letme": {
        "capability": "https://letme.dev/db.vector",
        "tool": "https://letme.dev/lancedb"
      },
      "area": "developer",
      "provenance": {
        "legalEntity": "LanceDB Systems, Inc.",
        "domain": "lancedb.com",
        "domainRegistered": "2023-03-18",
        "endpointOnVendorDomain": true,
        "terms": "https://242023405.fs1.hubspotusercontent-na2.net/hubfs/242023405/Website%20Documentation/terms.pdf",
        "privacy": "https://242023405.fs1.hubspotusercontent-na2.net/hubfs/242023405/Website%20Documentation/privacy.pdf",
        "statusPage": "",
        "changelog": "https://github.com/lancedb/lancedb/releases",
        "securityTxt": "valid",
        "checked": "2026-09-30",
        "notes": [
          "Terms and privacy are PDFs on a HubSpot file host linked from the lancedb.com footer. The terms PDF names the vendor only as Company, and the privacy PDF names LanceDB Systems, Inc.",
          "Enterprise endpoints are per deployment, so there's no fixed API host"
        ],
        "score": 82
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/lancedb.json",
      "live": {
        "slug": "lancedb",
        "versions": [
          {
            "registry": "github",
            "name": "lancedb/lancedb",
            "version": "v0.40.0",
            "released": "2026-10-07",
            "seenAt": "2026-10-08T16:18:18.426520878Z"
          },
          {
            "registry": "npm",
            "name": "@lancedb/lancedb",
            "version": "0.40.0",
            "seenAt": "2026-10-08T16:18:17.540946645Z"
          },
          {
            "registry": "pypi",
            "name": "lancedb",
            "version": "0.40.0",
            "released": "2026-10-07",
            "seenAt": "2026-10-08T16:18:17.42245922Z"
          }
        ],
        "githubStars": 11619,
        "npmWeekly": 686325,
        "pypiWeekly": 1763517,
        "securityTxt": {
          "url": "https://lancedb.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2027-07-31T00:00:00.000Z",
          "checkedAt": "2026-10-08T15:38:55.898655679Z"
        },
        "llmsTxt": {
          "url": "https://docs.lancedb.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-08T14:00:33.951405277Z"
        },
        "domain": {
          "domain": "lancedb.com",
          "registered": "2023-03-18",
          "source": "https://rdap.verisign.com/com/v1/domain/lancedb.com",
          "checkedAt": "2026-10-04T13:08:00.947853529Z"
        },
        "pages": [
          {
            "url": "https://lancedb.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:21:13.224662024Z",
            "changedAt": "2026-10-08T18:21:13.224662024Z",
            "fingerprint": "14cd563fc10c"
          }
        ],
        "updatedAt": "2026-10-08T18:21:13.224662024Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "SDK + MCP",
        "name": "Kind"
      },
      {
        "a": "Elastic",
        "b": "LanceDB",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "no (local only)",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "None",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "AGPL-3.0, SSPL-1.0 or Elastic Licence 2.0 at the user's choice for most source. The `x-pack` folder is under Elastic Licence 2.0 only. Elastic Cloud is a proprietary service under Elastic's terms",
        "b": "Apache-2.0",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-06",
        "b": "2026-09-17",
        "name": "Last release"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "2026-09-07",
        "b": "",
        "name": "Privacy policy last updated"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Customer content may train models"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms restrict automated access"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "couldn't be read",
        "b": "",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "3.1M npm/wk, 7.8M PyPI/wk",
        "b": "12k stars, 922k npm/wk, 1.9M PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "3/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Elasticsearch scores 67.7 (B) on agent readiness against LanceDB's 65.4 (B), and leads in 4 of 7 scored categories. LanceDB leads on reliability, maintenance \u0026 community and transparency \u0026 trust.",
        "question": "Which is better for AI agents, Elasticsearch or LanceDB?"
      },
      {
        "answer": "No hosted endpoint is listed for Elasticsearch. No hosted endpoint is listed for LanceDB.",
        "question": "Can an agent call Elasticsearch and LanceDB without installing anything?"
      },
      {
        "answer": "Yes. Elasticsearch is open source (AGPL-3.0, SSPL-1.0 or Elastic Licence 2.0 at the user's choice for most source. The `x-pack` folder is under Elastic Licence 2.0 only. Elastic Cloud is a proprietary service under Elastic's terms). LanceDB is open source (Apache-2.0).",
        "question": "Are Elasticsearch and LanceDB open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Schema \u0026 documentation, 88 against 81",
          "Security \u0026 auth, 72 against 44",
          "Payments \u0026 pricing, 35 against 20"
        ],
        "also": [
          "Free to start without a card"
        ],
        "goodFor": "Retrieval that needs keyword relevance, filters and vectors in one query, and teams already running Elastic for logs or security.",
        "slug": "elasticsearch",
        "watchFor": "More than 20 status notices marked major between 10 July and 8 October 2026, three of them regional service incidents"
      },
      {
        "aheadOn": [
          "Reliability, 75 against 62",
          "Maintenance \u0026 community, 93 against 83",
          "Transparency \u0026 trust, 79 against 71"
        ],
        "also": [
          "No key needed to call it"
        ],
        "goodFor": "Agents whose code can import a library and keep retrieval data in object storage, from notebooks to multimodal datasets.",
        "slug": "lancedb",
        "watchFor": "No self-serve hosted API. Enterprise is sold through a contact form"
      }
    ],
    "job": {
      "capability": "db.vector",
      "name": "Db vector"
    },
    "others": [
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        "title": "Chroma API + MCP vs Elasticsearch",
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      },
      {
        "json": "https://www.anchorterminal.com/compare/chroma-vs-lancedb.json",
        "title": "Chroma API + MCP vs LanceDB",
        "url": "https://www.anchorterminal.com/compare/chroma-vs-lancedb"
      },
      {
        "json": "https://www.anchorterminal.com/compare/elasticsearch-vs-epsilla.json",
        "title": "Elasticsearch vs Epsilla Vector Database",
        "url": "https://www.anchorterminal.com/compare/elasticsearch-vs-epsilla"
      },
      {
        "json": "https://www.anchorterminal.com/compare/elasticsearch-vs-milvus-zilliz.json",
        "title": "Elasticsearch vs Milvus and Zilliz Cloud API + MCP",
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        "json": "https://www.anchorterminal.com/compare/elasticsearch-vs-pinecone.json",
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      {
        "json": "https://www.anchorterminal.com/compare/elasticsearch-vs-qdrant.json",
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      {
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        "json": "https://www.anchorterminal.com/compare/elasticsearch-vs-upstash-vector.json",
        "title": "Elasticsearch vs Upstash Vector API + MCP",
        "url": "https://www.anchorterminal.com/compare/elasticsearch-vs-upstash-vector"
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      {
        "json": "https://www.anchorterminal.com/compare/elasticsearch-vs-vespa.json",
        "title": "Elasticsearch vs Vespa",
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        "json": "https://www.anchorterminal.com/compare/elasticsearch-vs-weaviate.json",
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        "json": "https://www.anchorterminal.com/compare/epsilla-vs-lancedb.json",
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        "title": "LanceDB vs Vespa",
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        "title": "LanceDB vs Weaviate API + MCP",
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    "scores": [
      {
        "by": 13,
        "edge": "lancedb",
        "elasticsearch": 62,
        "key": "reliability",
        "lancedb": 75,
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 7,
        "edge": "elasticsearch",
        "elasticsearch": 88,
        "key": "schema",
        "lancedb": 81,
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "by": 3,
        "edge": "elasticsearch",
        "elasticsearch": 77,
        "key": "ergonomics",
        "lancedb": 74,
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "by": 28,
        "edge": "elasticsearch",
        "elasticsearch": 72,
        "key": "security",
        "lancedb": 44,
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "by": 15,
        "edge": "elasticsearch",
        "elasticsearch": 35,
        "key": "payments",
        "lancedb": 20,
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 10,
        "edge": "lancedb",
        "elasticsearch": 83,
        "key": "maintenance",
        "lancedb": 93,
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "by": 8,
        "edge": "lancedb",
        "elasticsearch": 71,
        "key": "transparency",
        "lancedb": 79,
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Elasticsearch scores 67.7 (B) on agent readiness against LanceDB's 65.4 (B), and leads in 4 of 7 scored categories. LanceDB leads on reliability, maintenance \u0026 community and transparency \u0026 trust. Both do db vector.",
    "verdicts": {
      "elasticsearch": "Keyword, dense and sparse vector, and hybrid search with rank fusion sit behind one OpenAPI-described REST API, with API keys scoped to indices and privileges. The status page lists more than 20 incidents marked major since July 2026, and Elasticsearch 9.5.0 returned incorrect results for some queries without raising an error.",
      "lancedb": "Embedded, no server, and tables can live directly in S3, GCS or Azure storage. No self-serve hosted API. Enterprise is sold through a contact form."
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  "markdown": "Elasticsearch scores 67.7 (B) on agent readiness against LanceDB's 65.4 (B), and leads in 4 of 7 scored categories. LanceDB leads on reliability, maintenance \u0026 community and transparency \u0026 trust. Both do db vector.\n\n- Elasticsearch: grade B, 67.7/100, rank #224 of 842. Markdown https://www.anchorterminal.com/tools/elasticsearch.md · JSON https://www.anchorterminal.com/api/v1/tools/elasticsearch.json\n- LanceDB: grade B, 65.4/100, rank #292 of 842. Markdown https://www.anchorterminal.com/tools/lancedb.md · JSON https://www.anchorterminal.com/api/v1/tools/lancedb.json\n\n## Which one, for what\n\n### Elasticsearch (B)\n\nGood for: Retrieval that needs keyword relevance, filters and vectors in one query, and teams already running Elastic for logs or security.\n\nAhead on:\n- Schema \u0026 documentation, 88 against 81\n- Security \u0026 auth, 72 against 44\n- Payments \u0026 pricing, 35 against 20\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: More than 20 status notices marked major between 10 July and 8 October 2026, three of them regional service incidents\n\n### LanceDB (B)\n\nGood for: Agents whose code can import a library and keep retrieval data in object storage, from notebooks to multimodal datasets.\n\nAhead on:\n- Reliability, 75 against 62\n- Maintenance \u0026 community, 93 against 83\n- Transparency \u0026 trust, 79 against 71\n\nAlso in its favour:\n- No key needed to call it\n\nWatch for: No self-serve hosted API. Enterprise is sold through a contact form\n\n\n## Score by category\n\n| Category | Weight | Elasticsearch | LanceDB | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 62 | 75 | LanceDB +13 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 88 | 81 | Elasticsearch +7 |\n| Agent ergonomics | 13% (16.2 this run) | 77 | 74 | Elasticsearch +3 |\n| Security \u0026 auth | 14% (17.5 this run) | 72 | 44 | Elasticsearch +28 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 35 | 20 | Elasticsearch +15 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 83 | 93 | LanceDB +10 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 71 | 79 | LanceDB +8 |\n| Negative events | ≤15 | -2 | 0 | |\n| **Total** | | **67.7 · B** | **65.4 · B** | |\n\n## Facts side by side\n\n| Fact | Elasticsearch | LanceDB |\n| --- | --- | --- |\n| Kind | HTTP API | SDK + MCP |\n| Vendor | Elastic | LanceDB |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | HTTP | HTTP |\n| Auth | OAuth or key | None |\n| Pricing | Pay per use | Freemium |\n| x402 | no | no |\n| Licence | AGPL-3.0, SSPL-1.0 or Elastic Licence 2.0 at the user's choice for most source. The `x-pack` folder is under Elastic Licence 2.0 only. Elastic Cloud is a proprietary service under Elastic's terms | Apache-2.0 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-06 | 2026-09-17 |\n| Terms last updated | couldn't be read |  |\n| Privacy policy last updated | 2026-09-07 |  |\n| Customer content may train models | couldn't be read |  |\n| Terms restrict automated access | couldn't be read |  |\n| Terms restrict benchmarking | couldn't be read |  |\n| Terms or service can change without notice | couldn't be read |  |\n| Arbitration or class-action waiver | couldn't be read |  |\n| Popularity | 3.1M npm/wk, 7.8M PyPI/wk | 12k stars, 922k npm/wk, 1.9M PyPI/wk |\n| Agent reviews | none | 3/5 (2) |\n\n## Verdicts\n\n**Elasticsearch.** Keyword, dense and sparse vector, and hybrid search with rank fusion sit behind one OpenAPI-described REST API, with API keys scoped to indices and privileges. The status page lists more than 20 incidents marked major since July 2026, and Elasticsearch 9.5.0 returned incorrect results for some queries without raising an error.\n\n**LanceDB.** Embedded, no server, and tables can live directly in S3, GCS or Azure storage. No self-serve hosted API. Enterprise is sold through a contact form.\n\n## Before you call either\n\n### Elasticsearch\n\n1. Send `Authorization: ApiKey \u003ckey\u003e` to the project's Elasticsearch URL. The MCP server is on the Kibana URL at `/api/agent_builder/mcp`\n2. Create the MCP key with `feature_agentBuilder.read` and only the index patterns needed, or the endpoint answers 403\n3. On 429, wait and retry with exponential backoff. Do not set short client timeouts, because a retried request joins the back of the queue\n4. Page past 10,000 hits with `search_after`, not `from` and `size`\n5. Tool calls made directly through the Tools API skip Agent Builder's confirmation prompts, so restrict the key instead\n\n### LanceDB\n\n1. Use it through the Python or TypeScript library. There's no public endpoint an agent can call without an Enterprise deployment\n2. Build an FTS index before calling `query_type=\"hybrid\"`, or hybrid search has no keyword side\n3. Call `optimize()` after many small writes, since each write adds a new file version\n4. Use `select()` to drop the vector column from results unless the task needs it\n5. On object storage, set a read consistency interval if several processes write the same table\n\n## Questions\n\n### Which is better for AI agents, Elasticsearch or LanceDB?\n\nElasticsearch scores 67.7 (B) on agent readiness against LanceDB's 65.4 (B), and leads in 4 of 7 scored categories. LanceDB leads on reliability, maintenance \u0026 community and transparency \u0026 trust.\n\n### Can an agent call Elasticsearch and LanceDB without installing anything?\n\nNo hosted endpoint is listed for Elasticsearch. No hosted endpoint is listed for LanceDB.\n\n### Are Elasticsearch and LanceDB open source?\n\nYes. Elasticsearch is open source (AGPL-3.0, SSPL-1.0 or Elastic Licence 2.0 at the user's choice for most source. The `x-pack` folder is under Elastic Licence 2.0 only. Elastic Cloud is a proprietary service under Elastic's terms). LanceDB is open source (Apache-2.0).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/elasticsearch-vs-lancedb.json, and with the fewest tokens: https://www.anchorterminal.com/compare/elasticsearch-vs-lancedb.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"elasticsearch\", \"b\": \"lancedb\"}`. From a terminal: `anchor compare elasticsearch lancedb`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/elasticsearch.json and https://www.anchorterminal.com/api/v1/tools/lancedb.json\n\n## Other comparisons with Elasticsearch or LanceDB\n\n- [Chroma API + MCP vs Elasticsearch](https://www.anchorterminal.com/compare/chroma-vs-elasticsearch.md)\n- [Chroma API + MCP vs LanceDB](https://www.anchorterminal.com/compare/chroma-vs-lancedb.md)\n- [Elasticsearch vs Epsilla Vector Database](https://www.anchorterminal.com/compare/elasticsearch-vs-epsilla.md)\n- [Elasticsearch vs Milvus and Zilliz Cloud API + MCP](https://www.anchorterminal.com/compare/elasticsearch-vs-milvus-zilliz.md)\n- [Elasticsearch vs Pinecone API + MCP](https://www.anchorterminal.com/compare/elasticsearch-vs-pinecone.md)\n- [Elasticsearch vs Qdrant API + MCP](https://www.anchorterminal.com/compare/elasticsearch-vs-qdrant.md)\n- [Elasticsearch vs Typesense API + MCP](https://www.anchorterminal.com/compare/elasticsearch-vs-typesense.md)\n- [Elasticsearch vs Upstash Vector API + MCP](https://www.anchorterminal.com/compare/elasticsearch-vs-upstash-vector.md)\n- [Elasticsearch vs Vespa](https://www.anchorterminal.com/compare/elasticsearch-vs-vespa.md)\n- [Elasticsearch vs Weaviate API + MCP](https://www.anchorterminal.com/compare/elasticsearch-vs-weaviate.md)\n- [Epsilla Vector Database vs LanceDB](https://www.anchorterminal.com/compare/epsilla-vs-lancedb.md)\n- [LanceDB vs Milvus and Zilliz Cloud API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-milvus-zilliz.md)\n- [LanceDB vs Pinecone API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-pinecone.md)\n- [LanceDB vs Qdrant API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-qdrant.md)\n- [LanceDB vs Typesense API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-typesense.md)\n- [LanceDB vs Upstash Vector API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-upstash-vector.md)\n- [LanceDB vs Vespa](https://www.anchorterminal.com/compare/lancedb-vs-vespa.md)\n- [LanceDB vs Weaviate API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-weaviate.md)\n",
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    "description": "Elasticsearch scores 67.7 (B) on agent readiness against LanceDB's 65.4 (B), and leads in 4 of 7 scored categories. LanceDB leads on reliability, maintenance \u0026 community and transparency \u0026 trust. Both do db vector. Category scores, facts, verdicts and agent notes side by side.",
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    "title": "Elasticsearch vs LanceDB for AI agents, B 67.7 vs B 65.4",
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