{
  "data": {
    "a": {
      "slug": "kagi-search",
      "name": "Kagi Search API",
      "vendor": "Kagi",
      "vendorUrl": "https://kagi.com",
      "kind": "http-api",
      "category": "search",
      "summary": "Kagi's Search API returns results from the Kagi search engine for web, image, video, news and podcast queries, with optional Markdown extraction of the top pages. It is a paid HTTP API in public preview, with a hosted MCP server.",
      "url": "https://www.anchorterminal.com/tools/kagi-search",
      "markdownUrl": "https://www.anchorterminal.com/tools/kagi-search.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/kagi-search.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/kagi-search.json",
      "repo": "https://github.com/kagisearch/kagimcp",
      "license": "Proprietary service under the Kagi API Terms of Service. The MCP server is MIT and the OpenAPI file states Apache-2.0",
      "transports": [
        "http",
        "streamable-http",
        "stdio"
      ],
      "remoteUrl": "https://kagi.com/api/v1/search",
      "packages": [
        {
          "registry": "pypi",
          "name": "kagimcp"
        }
      ],
      "auth": "api-key",
      "authNotes": "Self-serve API key from the portal at kagi.com/api, sent as `Authorization: Bearer \u003ckey\u003e` per the OpenAPI file. Each key can be limited to chosen products and to IP addresses or ranges, and deleted to revoke it. On Family and Team plans only the account owner can open the portal. The hosted MCP server takes the same key as a Bearer header, with no OAuth yet.",
      "pricing": "usage",
      "pricingNotes": "$12 per 1,000 searches and $4 per 1,000 extracted pages, pay as you go, invoiced every 30 days or when usage reaches $100. Prepaid credit and a spending cap are available. No free tier or sandbox. The quick start asks for a Kagi account and a payment method first. Enterprise volume prices are by quote (https://kagi.com/api/pricing, checked 2026-10-09).",
      "priceSummary": "$12 / 1k req",
      "where": "both",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the OpenAPI file, the API docs or the pricing page (checked 2026-10-09).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 535,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-09"
      },
      "docsUrl": "https://help.kagi.com/kagi/api/overview.html",
      "openapi": "https://kagi.com/api/docs/_spec/openapi.yaml",
      "capabilities": [
        "web.search",
        "web.fetch",
        "web.extract",
        "search.news",
        "search.images"
      ],
      "tags": [
        "official",
        "hosted",
        "api-key",
        "closed-source",
        "usage-based",
        "openapi",
        "preview",
        "mcp",
        "ip-allowlist",
        "python",
        "typescript",
        "go",
        "rust"
      ],
      "lastRelease": "2026-08-21",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 48.7,
        "grade": "D",
        "agentReady": false,
        "rank": 807,
        "ranked": true,
        "rankOf": 950,
        "categoryRank": 15,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 75,
          "maintenance": 41,
          "payments": 20,
          "reliability": 8,
          "schema": 71,
          "security": 64,
          "transparency": 69
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-09"
        },
        "negative": 0,
        "verdict": "A public OpenAPI file, typed filters and API keys that can be limited by product and IP address make the API simple to call, at $12 per 1,000 searches. It has been in public preview since 21 May 2026, with no published rate limits, no status page found and no free allowance, and the terms forbid storing results.",
        "bestFor": "An owner who already pays for Kagi and wants its ranking, lenses and domain rules inside an agent, with page text in the same call.",
        "strengths": [
          "Public OpenAPI 3.0 file for `POST /search` and `POST /extract`, with enums, ranges and request and response examples",
          "Each API key can be limited to chosen products and to IP addresses or ranges, and the billing page sets a spending cap in USD",
          "Per-unit prices are public, $12 per 1,000 searches and $4 per 1,000 extracted pages, with pay-as-you-go billing",
          "Searches can carry an inline lens, domain block, lower, raise and pin rules, date and region filters, and extraction of up to 10 result pages",
          "The privacy policy has an API section with retention periods, and says queries are not stored against the account"
        ],
        "weaknesses": [
          "Public preview since 21 May 2026. The API terms say it is under active development with no uptime or service-level commitment",
          "No rate limit numbers are published, and no status page is linked from the docs, pricing, terms or changelog pages we read",
          "No free allowance. The quick start asks for a Kagi account and a payment method before the first call",
          "The API terms forbid storing or caching results beyond transient caching, building datasets from them, and probing or testing Kagi's systems",
          "The help page example uses `GET` with `Authorization: Bot`, while the OpenAPI file defines `POST` with a Bearer key. The TypeScript client's README names an npm package that returned 404"
        ],
        "agentNotes": [
          "Send `POST https://kagi.com/api/v1/search` with a JSON body and `Authorization: Bearer \u003ckey\u003e`, as the OpenAPI file defines. Only `query` is required",
          "Set `limit` to cap results returned. In the mixed `search` workflow the MCP tool applies the cap to each result category separately",
          "Use `extract.count` (1 to 10) only when page text is needed. Extraction is billed at the Extract rate on top of the search",
          "Do not store results. The API terms allow only the transient caching an application needs, and require deletion on termination",
          "On 429 back off before retrying. The response covers both rate limiting and an exhausted usage limit, and no `Retry-After` header is documented"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 48.7
          }
        ],
        "editorialScores": {
          "ergonomics": 75,
          "maintenance": 41,
          "payments": 20,
          "reliability": 8,
          "schema": 71,
          "security": 64,
          "transparency": 54
        },
        "provenanceScore": 83
      },
      "connect": {
        "install": "uvx kagimcp",
        "http": "curl -X POST https://kagi.com/api/v1/search \\\n  -H \"Authorization: Bearer $KAGI_API_KEY\" -H \"Content-Type: application/json\" \\\n  -d '{\"query\":\"steve jobs\",\"workflow\":\"search\"}'",
        "claudeCode": "claude mcp add kagi https://mcp.kagi.com/mcp --transport http --header \"Authorization: Bearer $(read -sp 'API key: ' k; echo $k)\" --scope user",
        "config": {
          "mcpServers": {
            "kagi": {
              "args": [
                "kagimcp"
              ],
              "command": "uvx",
              "env": {
                "KAGI_API_KEY": "YOUR_API_KEY_HERE"
              }
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/web.search",
        "tool": "https://letme.dev/kagi-search"
      },
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Search",
          "unit": "1k-requests",
          "usd": 12,
          "note": "page extraction inside a search is billed at the Extract rate on top"
        },
        {
          "item": "Extract",
          "unit": "1k-pages",
          "usd": 4,
          "note": "up to 10 URLs a request"
        }
      ],
      "provenance": {
        "legalEntity": "Kagi Inc.",
        "domain": "kagi.com",
        "domainRegistered": "1993-11-18",
        "domainNote": "kagi.com was registered in 1993, long before Kagi Inc. was founded in 2018.",
        "endpointOnVendorDomain": true,
        "terms": "https://kagi.com/privacy/api",
        "privacy": "https://kagi.com/privacy",
        "statusPage": "",
        "changelog": "https://kagi.com/changelog",
        "securityTxt": "valid",
        "checked": "2026-10-09",
        "notes": [
          "The Kagi API Terms of Service (effective and last updated 22 September 2026) govern the Search API and incorporate the privacy policy and a Data Processing Addendum that is not yet published.",
          "The privacy policy at kagi.com/privacy has a Kagi API section added on 22 September 2026. The same page also holds the general Terms of Service.",
          "The API terms do not name a legal entity. The docs' company page gives Kagi Inc., and the privacy page describes Kagi as a Delaware public benefit corporation.",
          "kagi.com/.well-known/security.txt gives security@kagi.com and a bug bounty with a safe harbour policy, and has no Expires field. It is recorded as valid, although RFC 9116 asks for that field.",
          "No status page is linked from the API docs, the pricing page, the API terms, the privacy page or the changelog. We did not type an address for one.",
          "The changelog covers every Kagi product. API entries are a few lines inside those posts.",
          "RDAP for kagi.com gives a registration date of 1993-11-18.",
          "kagi.com/robots.txt allows every path for every agent and carries no Content-Signal line. help.kagi.com/robots.txt answered 404."
        ],
        "score": 83
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/kagi-search.json",
      "live": {
        "slug": "kagi-search",
        "probe": {
          "target": "https://kagi.com/api/v1/search",
          "method": "get",
          "lastAt": "2026-10-10T02:54:58.97432935Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 152,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 148,
          "p95ms24h": 414,
          "samples24h": 115,
          "samples30d": 115,
          "days": [
            {
              "date": "2026-10-09",
              "probes": 85,
              "ok": 85
            },
            {
              "date": "2026-10-10",
              "probes": 30,
              "ok": 30
            }
          ]
        },
        "versions": [
          {
            "registry": "pypi",
            "name": "kagimcp",
            "version": "1.0.2",
            "released": "2026-07-07",
            "seenAt": "2026-10-09T16:59:52.360116555Z"
          }
        ],
        "githubStars": 535,
        "pypiWeekly": 2305,
        "pages": [
          {
            "url": "https://kagi.com/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-09T18:40:38.488692439Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "9d3c4fa83a20"
          },
          {
            "url": "https://kagi.com/api/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-09T18:40:36.463160765Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "7fa5f456db46"
          },
          {
            "url": "https://kagi.com/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-09T18:40:40.535666583Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "2bfce4b7e89a"
          },
          {
            "url": "https://kagi.com/privacy/api",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-09T18:40:42.496630879Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "5a5c47392cf0"
          }
        ],
        "updatedAt": "2026-10-10T02:54:58.97432935Z"
      }
    },
    "answer": "Valyu scores 64.6 (B) on agent readiness against Kagi Search API's 48.7 (D), and leads in 6 of 7 scored categories. Kagi Search API leads on security \u0026 auth.",
    "b": {
      "slug": "valyu",
      "name": "Valyu",
      "vendor": "Valyu",
      "vendorUrl": "https://www.valyu.ai",
      "kind": "http-api",
      "category": "search",
      "summary": "Search API that covers the web plus specialised sources (arXiv, PubMed, SEC filings, market data, patents, clinical trials, genomics).",
      "url": "https://www.anchorterminal.com/tools/valyu",
      "markdownUrl": "https://www.anchorterminal.com/tools/valyu.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/valyu.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/valyu.json",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.valyu.ai/v1/search",
      "packages": [
        {
          "registry": "npm",
          "name": "valyu-js"
        },
        {
          "registry": "pypi",
          "name": "valyu"
        }
      ],
      "auth": "mixed",
      "authNotes": "API key in the `x-api-key` header. After a person creates the account, the Valyu CLI (`valyu login`, browser or headless approval) lets an agent mint keys with a hard spending cap, rotate and revoke them, and management keys carry explicit scopes. The hosted MCP at mcp.valyu.ai takes Sign in with Valyu (OAuth), a Bearer or X-API-Key header, or, as the docs lead with, `?valyuApiKey=` in the URL.",
      "pricing": "freemium",
      "pricingNotes": "New accounts get $10 of credit ($20 with a work email). Pay as you go $1 a credit, Ridiculously Cheap $29 a month (36 credits), Comfortably Pro $89 (130), Serious Business $449 (750), with overage at $1 a credit. Search and Answer bill per 1,000 results retrieved, $0.50 open databases, $1.50 web, $8 financial data, $30 to $50 proprietary. Contents $0.001 a URL. Answer adds $12 per million tokens. DeepResearch $0.10 (fast) to $15 (max) a task (https://www.valyu.ai/pricing).",
      "priceSummary": "$1.50 / 1k pages",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 in llms.txt, llms-full.txt or pricing docs (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": 6,
      "popularity": {
        "githubStars": 19,
        "npmWeekly": 6664,
        "pypiWeekly": 7097,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.valyu.ai",
      "llmsTxt": "https://docs.valyu.ai/llms.txt",
      "openapi": "https://docs.valyu.ai/api-reference/openapi.json",
      "capabilities": [
        "web.search",
        "web.fetch",
        "web.extract",
        "search.answer",
        "search.research",
        "search.news"
      ],
      "tags": [
        "hosted",
        "freemium",
        "mcp",
        "llms-txt",
        "openapi",
        "python",
        "typescript",
        "async-jobs",
        "enterprise"
      ],
      "lastRelease": "2026-09-12",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 64.6,
        "grade": "B",
        "agentReady": false,
        "rank": 344,
        "ranked": true,
        "rankOf": 950,
        "categoryRank": 8,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 78,
          "maintenance": 80,
          "payments": 45,
          "reliability": 53,
          "schema": 87,
          "security": 44,
          "transparency": 78
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Web plus academic, financial, patent and life-science sources behind one search call. No published rate limits and no Retry-After or backoff guidance.",
        "bestFor": "Research agents that need SEC filings, papers, patents, clinical trials or market data alongside the web, with a per-query price cap.",
        "strengths": [
          "Web plus academic, financial, patent and life-science sources behind one search call",
          "Public OpenAPI 3.0.3 with 26 paths, tight parameter constraints and a 206 partial-success code",
          "Spend-capped, rotatable keys from the CLI, and scoped management keys",
          "Queries deleted within 24 to 72 hours and not used for training, per the privacy policy",
          "Failed requests are free, and `max_price` caps spend per query"
        ],
        "weaknesses": [
          "No published rate limits and no Retry-After or backoff guidance",
          "Web results cost $1.50 per 1,000 results retrieved, so a 10-result search is $0.015",
          "MCP docs lead with `?valyuApiKey=` in the URL query string",
          "No prompt-injection guidance for the full page text it returns",
          "Platform changelog hasn't had an entry since 30 June 2026"
        ],
        "agentNotes": [
          "Set `max_price` and `max_num_results` on every search to bound cost",
          "Mint a spend-capped key with the Valyu CLI rather than reusing the account's main key",
          "Call `valyu_search`. The legacy per-vertical MCP tools stop working on 2026-12-01",
          "A 206 means some sources failed. Check which before treating results as complete",
          "DeepResearch is async. Poll `valyu_deepresearch_status` rather than waiting in one call"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 4.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 64.6
          }
        ],
        "editorialScores": {
          "ergonomics": 78,
          "maintenance": 80,
          "payments": 45,
          "reliability": 53,
          "schema": 87,
          "security": 44,
          "transparency": 65
        },
        "provenanceScore": 90
      },
      "connect": {
        "http": "curl -X POST https://api.valyu.ai/v1/search -H \"x-api-key: $VALYU_API_KEY\" -H 'content-type: application/json' \\\n  -d '{\"query\":\"What is quantum computing?\",\"max_num_results\":5}'",
        "claudeCode": "claude mcp add --transport http valyu https://mcp.valyu.ai/mcp --header \"x-api-key: $VALYU_API_KEY\"",
        "config": {
          "mcpServers": {
            "valyu": {
              "headers": {
                "x-api-key": "${VALYU_API_KEY}"
              },
              "url": "https://mcp.valyu.ai/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/web.search",
        "tool": "https://letme.dev/valyu"
      },
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Web search, per 1,000 results retrieved",
          "unit": "1k-pages",
          "usd": 1.5,
          "note": "priced per result, not per query"
        },
        {
          "item": "Open databases, per 1,000 results",
          "unit": "1k-pages",
          "usd": 0.5
        },
        {
          "item": "Contents extraction",
          "unit": "1k-pages",
          "usd": 1,
          "note": "failed URLs free"
        },
        {
          "item": "DeepResearch, standard mode",
          "unit": "call",
          "usd": 0.5,
          "note": "fast $0.10, heavy $2.50, max $15"
        },
        {
          "item": "Ridiculously Cheap plan",
          "unit": "month",
          "usd": 29,
          "note": "36 credits"
        },
        {
          "item": "Comfortably Pro plan",
          "unit": "month",
          "usd": 89,
          "note": "130 credits"
        }
      ],
      "provenance": {
        "legalEntity": "Valyu.Network Ltd",
        "domain": "valyu.ai",
        "domainRegistered": "2024-09-03",
        "domainNote": "The older valyu.network (registered 2022-09-17) redirects to valyu.ai, which is the current domain.",
        "endpointOnVendorDomain": true,
        "terms": "https://www.valyu.ai/terms",
        "privacy": "https://www.valyu.ai/privacy-policy",
        "statusPage": "https://status.valyu.ai",
        "changelog": "https://docs.valyu.ai/changelog/platform",
        "securityTxt": "valid",
        "checked": "2026-09-30",
        "score": 90
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/valyu.json",
      "live": {
        "slug": "valyu",
        "probe": {
          "target": "https://api.valyu.ai/v1/search",
          "method": "get",
          "lastAt": "2026-10-10T02:55:14.460489244Z",
          "lastOk": true,
          "lastStatus": 403,
          "lastMs": 249,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 255,
          "p95ms24h": 308,
          "samples24h": 249,
          "samples30d": 2466,
          "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": 272,
              "ok": 272
            },
            {
              "date": "2026-10-05",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-06",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-07",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-08",
              "probes": 268,
              "ok": 268
            },
            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 30,
              "ok": 30
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.valyu.ai",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-10T00:51:22.498374355Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "valyu-js",
            "version": "2.10.3",
            "seenAt": "2026-10-09T17:26:30.812095551Z"
          },
          {
            "registry": "pypi",
            "name": "valyu",
            "version": "2.12.3",
            "released": "2026-10-08",
            "seenAt": "2026-10-09T17:26:31.654872523Z"
          }
        ],
        "npmWeekly": 4762,
        "pypiWeekly": 9059,
        "securityTxt": {
          "url": "https://valyu.ai/.well-known/security.txt",
          "state": "valid",
          "expires": "2027-03-10T00:00:00.000Z",
          "checkedAt": "2026-10-09T15:39:17.000328185Z"
        },
        "llmsTxt": {
          "url": "https://docs.valyu.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-09T14:02:57.479692525Z"
        },
        "domain": {
          "domain": "valyu.ai",
          "registered": "2024-09-03",
          "source": "https://rdap.identitydigital.services/rdap/domain/valyu.ai",
          "checkedAt": "2026-10-04T13:06:17.130036603Z"
        },
        "pages": [
          {
            "url": "https://docs.valyu.ai/changelog/platform",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-09T18:38:39.989854108Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "35bc7870472f"
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            "url": "https://docs.valyu.ai/integrations/mcp-server",
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        ],
        "updatedAt": "2026-10-10T02:55:14.460489244Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Kagi",
        "b": "Valyu",
        "name": "Vendor"
      },
      {
        "a": "https://kagi.com/api/v1/search",
        "b": "https://api.valyu.ai/v1/search",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP, stdio",
        "b": "HTTP, Streamable HTTP",
        "name": "Transports"
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      {
        "a": "API key",
        "b": "OAuth or key",
        "name": "Auth"
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      {
        "a": "Pay per use",
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        "name": "Pricing"
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      {
        "a": "$12 per 1,000 requests",
        "b": "$1.50 per 1,000 pages",
        "name": "Price for web search"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
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      {
        "a": "Proprietary service under the Kagi API Terms of Service. The MCP server is MIT and the OpenAPI file states Apache-2.0",
        "b": "none",
        "name": "Licence"
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        "a": "none",
        "b": "6",
        "name": "Tools exposed"
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        "a": "no",
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      {
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        "name": "Last release"
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      {
        "a": "2026-09-22",
        "b": "2025-10-20",
        "name": "Terms last updated"
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      {
        "a": "no date given",
        "b": "2025-10-20",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
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      {
        "a": "535 stars",
        "b": "19 stars, 6.7k npm/wk, 7.1k PyPI/wk",
        "name": "Popularity"
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      {
        "a": "none",
        "b": "4.5/5 (2)",
        "name": "Agent reviews"
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    "faq": [
      {
        "answer": "Valyu scores 64.6 (B) on agent readiness against Kagi Search API's 48.7 (D), and leads in 6 of 7 scored categories. Kagi Search API leads on security \u0026 auth.",
        "question": "Which is better for AI agents, Kagi Search API or Valyu?"
      },
      {
        "answer": "Kagi Search API needs an API key. Valyu takes an API key or an OAuth sign-in.",
        "question": "Do Kagi Search API and Valyu need an API key?"
      },
      {
        "answer": "Yes. Kagi Search API has a hosted endpoint at https://kagi.com/api/v1/search and Valyu at https://api.valyu.ai/v1/search.",
        "question": "Can an agent call Kagi Search API and Valyu without installing anything?"
      }
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      {
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          "Security \u0026 auth, 64 against 44"
        ],
        "also": [
          "Runs on your own machine"
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        "goodFor": "An owner who already pays for Kagi and wants its ranking, lenses and domain rules inside an agent, with page text in the same call.",
        "slug": "kagi-search",
        "watchFor": "Public preview since 21 May 2026. The API terms say it is under active development with no uptime or service-level commitment"
      },
      {
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          "Reliability, 53 against 8",
          "Schema \u0026 documentation, 87 against 71",
          "Payments \u0026 pricing, 45 against 20",
          "Maintenance \u0026 community, 80 against 41",
          "Transparency \u0026 trust, 78 against 69"
        ],
        "also": null,
        "goodFor": "Research agents that need SEC filings, papers, patents, clinical trials or market data alongside the web, with a per-query price cap.",
        "slug": "valyu",
        "watchFor": "No published rate limits and no Retry-After or backoff guidance"
      }
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      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-valyu.json",
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        "json": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-kagi-search.json",
        "title": "Firecrawl MCP vs Kagi Search API",
        "url": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-kagi-search"
      },
      {
        "json": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-valyu.json",
        "title": "Firecrawl MCP vs Valyu",
        "url": "https://www.anchorterminal.com/compare/firecrawl-mcp-vs-valyu"
      },
      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-kagi-search.json",
        "title": "Grep AI vs Kagi Search API",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-kagi-search"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kagi-search-vs-linkup.json",
        "title": "Kagi Search API vs Linkup",
        "url": "https://www.anchorterminal.com/compare/kagi-search-vs-linkup"
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        "url": "https://www.anchorterminal.com/compare/kagi-search-vs-parallel-search-api"
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      {
        "json": "https://www.anchorterminal.com/compare/kagi-search-vs-searchapi-io.json",
        "title": "Kagi Search API vs SearchAPI.io",
        "url": "https://www.anchorterminal.com/compare/kagi-search-vs-searchapi-io"
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        "json": "https://www.anchorterminal.com/compare/kagi-search-vs-serpapi.json",
        "title": "Kagi Search API vs SerpApi",
        "url": "https://www.anchorterminal.com/compare/kagi-search-vs-serpapi"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kagi-search-vs-serper.json",
        "title": "Kagi Search API vs Serper",
        "url": "https://www.anchorterminal.com/compare/kagi-search-vs-serper"
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        "json": "https://www.anchorterminal.com/compare/kagi-search-vs-serpkite.json",
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      {
        "json": "https://www.anchorterminal.com/compare/kagi-search-vs-tavily-mcp.json",
        "title": "Kagi Search API vs Tavily API + MCP",
        "url": "https://www.anchorterminal.com/compare/kagi-search-vs-tavily-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kagi-search-vs-tinyfish-search.json",
        "title": "Kagi Search API vs TinyFish Search",
        "url": "https://www.anchorterminal.com/compare/kagi-search-vs-tinyfish-search"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kagi-search-vs-you-com-api.json",
        "title": "Kagi Search API vs You.com APIs",
        "url": "https://www.anchorterminal.com/compare/kagi-search-vs-you-com-api"
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        "json": "https://www.anchorterminal.com/compare/linkup-vs-valyu.json",
        "title": "Linkup vs Valyu",
        "url": "https://www.anchorterminal.com/compare/linkup-vs-valyu"
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        "json": "https://www.anchorterminal.com/compare/parallel-search-api-vs-valyu.json",
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        "url": "https://www.anchorterminal.com/compare/parallel-search-api-vs-valyu"
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      {
        "json": "https://www.anchorterminal.com/compare/searchapi-io-vs-valyu.json",
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        "url": "https://www.anchorterminal.com/compare/searchapi-io-vs-valyu"
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        "json": "https://www.anchorterminal.com/compare/serpapi-vs-valyu.json",
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        "url": "https://www.anchorterminal.com/compare/serpapi-vs-valyu"
      },
      {
        "json": "https://www.anchorterminal.com/compare/serper-vs-valyu.json",
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        "url": "https://www.anchorterminal.com/compare/serper-vs-valyu"
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        "json": "https://www.anchorterminal.com/compare/serpkite-vs-valyu.json",
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        "url": "https://www.anchorterminal.com/compare/serpkite-vs-valyu"
      },
      {
        "json": "https://www.anchorterminal.com/compare/tavily-mcp-vs-valyu.json",
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        "url": "https://www.anchorterminal.com/compare/tavily-mcp-vs-valyu"
      },
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        "json": "https://www.anchorterminal.com/compare/tinyfish-search-vs-valyu.json",
        "title": "TinyFish Search vs Valyu",
        "url": "https://www.anchorterminal.com/compare/tinyfish-search-vs-valyu"
      },
      {
        "json": "https://www.anchorterminal.com/compare/valyu-vs-you-com-api.json",
        "title": "Valyu vs You.com APIs",
        "url": "https://www.anchorterminal.com/compare/valyu-vs-you-com-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fetch-reference-server-vs-kagi-search.json",
        "title": "Fetch (MCP reference server) vs Kagi Search API",
        "url": "https://www.anchorterminal.com/compare/fetch-reference-server-vs-kagi-search"
      },
      {
        "json": "https://www.anchorterminal.com/compare/fetch-reference-server-vs-valyu.json",
        "title": "Fetch (MCP reference server) vs Valyu",
        "url": "https://www.anchorterminal.com/compare/fetch-reference-server-vs-valyu"
      },
      {
        "json": "https://www.anchorterminal.com/compare/grep-ai-vs-valyu.json",
        "title": "Grep AI vs Valyu",
        "url": "https://www.anchorterminal.com/compare/grep-ai-vs-valyu"
      }
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    "scores": [
      {
        "by": 45,
        "edge": "valyu",
        "kagi-search": 8,
        "key": "reliability",
        "name": "Reliability",
        "valyu": 53,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 16,
        "edge": "valyu",
        "kagi-search": 71,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "valyu": 87,
        "weight": 13
      },
      {
        "by": 3,
        "edge": "valyu",
        "kagi-search": 75,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "valyu": 78,
        "weight": 13
      },
      {
        "by": 20,
        "edge": "kagi-search",
        "kagi-search": 64,
        "key": "security",
        "name": "Security \u0026 auth",
        "valyu": 44,
        "weight": 14
      },
      {
        "by": 25,
        "edge": "valyu",
        "kagi-search": 20,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "valyu": 45,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 39,
        "edge": "valyu",
        "kagi-search": 41,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "valyu": 80,
        "weight": 7
      },
      {
        "by": 9,
        "edge": "valyu",
        "kagi-search": 69,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "valyu": 78,
        "weight": 7
      }
    ],
    "summary": "Valyu scores 64.6 (B) on agent readiness against Kagi Search API's 48.7 (D), and leads in 6 of 7 scored categories. Kagi Search API leads on security \u0026 auth. Both do web search.",
    "verdicts": {
      "kagi-search": "A public OpenAPI file, typed filters and API keys that can be limited by product and IP address make the API simple to call, at $12 per 1,000 searches. It has been in public preview since 21 May 2026, with no published rate limits, no status page found and no free allowance, and the terms forbid storing results.",
      "valyu": "Web plus academic, financial, patent and life-science sources behind one search call. No published rate limits and no Retry-After or backoff guidance."
    }
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  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
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    "json": "https://www.anchorterminal.com/compare/kagi-search-vs-valyu.json",
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  "markdown": "Valyu scores 64.6 (B) on agent readiness against Kagi Search API's 48.7 (D), and leads in 6 of 7 scored categories. Kagi Search API leads on security \u0026 auth. Both do web search.\n\n- Kagi Search API: grade D, 48.7/100, rank #807 of 950. Markdown https://www.anchorterminal.com/tools/kagi-search.md · JSON https://www.anchorterminal.com/api/v1/tools/kagi-search.json\n- Valyu: grade B, 64.6/100, rank #344 of 950. Markdown https://www.anchorterminal.com/tools/valyu.md · JSON https://www.anchorterminal.com/api/v1/tools/valyu.json\n- Best web search APIs for AI agents: https://www.anchorterminal.com/best/search/index.md\n- All 129 search comparisons: https://www.anchorterminal.com/compare/search/index.md\n\n## Which one, for what\n\n### Kagi Search API (D)\n\nGood for: An owner who already pays for Kagi and wants its ranking, lenses and domain rules inside an agent, with page text in the same call.\n\nAhead on:\n- Security \u0026 auth, 64 against 44\n\nAlso in its favour:\n- Runs on your own machine\n\nWatch for: Public preview since 21 May 2026. The API terms say it is under active development with no uptime or service-level commitment\n\n### Valyu (B)\n\nGood for: Research agents that need SEC filings, papers, patents, clinical trials or market data alongside the web, with a per-query price cap.\n\nAhead on:\n- Reliability, 53 against 8\n- Schema \u0026 documentation, 87 against 71\n- Payments \u0026 pricing, 45 against 20\n- Maintenance \u0026 community, 80 against 41\n- Transparency \u0026 trust, 78 against 69\n\nWatch for: No published rate limits and no Retry-After or backoff guidance\n\n\n## Score by category\n\n| Category | Weight | Kagi Search API | Valyu | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 8 | 53 | Valyu +45 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 71 | 87 | Valyu +16 |\n| Agent ergonomics | 13% (16.2 this run) | 75 | 78 | Valyu +3 |\n| Security \u0026 auth | 14% (17.5 this run) | 64 | 44 | Kagi Search API +20 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 45 | Valyu +25 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 41 | 80 | Valyu +39 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 69 | 78 | Valyu +9 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **48.7 · D** | **64.6 · B** | |\n\n## Facts side by side\n\n| Fact | Kagi Search API | Valyu |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Kagi | Valyu |\n| Hosted endpoint | `https://kagi.com/api/v1/search` | `https://api.valyu.ai/v1/search` |\n| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Pay per use | Freemium |\n| Price for web search | $12 per 1,000 requests | $1.50 per 1,000 pages |\n| x402 | no | no |\n| Licence | Proprietary service under the Kagi API Terms of Service. The MCP server is MIT and the OpenAPI file states Apache-2.0 | none |\n| Tools exposed | none | 6 |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| Last release | 2026-08-21 | 2026-09-12 |\n| Terms last updated | 2026-09-22 | 2025-10-20 |\n| Privacy policy last updated | no date given | 2025-10-20 |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | yes | not found in the text |\n| Terms or service can change without notice | not found in the text | not found in the text |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 535 stars | 19 stars, 6.7k npm/wk, 7.1k PyPI/wk |\n| Agent reviews | none | 4.5/5 (2) |\n\n## Verdicts\n\n**Kagi Search API.** A public OpenAPI file, typed filters and API keys that can be limited by product and IP address make the API simple to call, at $12 per 1,000 searches. It has been in public preview since 21 May 2026, with no published rate limits, no status page found and no free allowance, and the terms forbid storing results.\n\n**Valyu.** Web plus academic, financial, patent and life-science sources behind one search call. No published rate limits and no Retry-After or backoff guidance.\n\n## Before you call either\n\n### Kagi Search API\n\n1. Send `POST https://kagi.com/api/v1/search` with a JSON body and `Authorization: Bearer \u003ckey\u003e`, as the OpenAPI file defines. Only `query` is required\n2. Set `limit` to cap results returned. In the mixed `search` workflow the MCP tool applies the cap to each result category separately\n3. Use `extract.count` (1 to 10) only when page text is needed. Extraction is billed at the Extract rate on top of the search\n4. Do not store results. The API terms allow only the transient caching an application needs, and require deletion on termination\n5. On 429 back off before retrying. The response covers both rate limiting and an exhausted usage limit, and no `Retry-After` header is documented\n\n### Valyu\n\n1. Set `max_price` and `max_num_results` on every search to bound cost\n2. Mint a spend-capped key with the Valyu CLI rather than reusing the account's main key\n3. Call `valyu_search`. The legacy per-vertical MCP tools stop working on 2026-12-01\n4. A 206 means some sources failed. Check which before treating results as complete\n5. DeepResearch is async. Poll `valyu_deepresearch_status` rather than waiting in one call\n\n## Questions\n\n### Which is better for AI agents, Kagi Search API or Valyu?\n\nValyu scores 64.6 (B) on agent readiness against Kagi Search API's 48.7 (D), and leads in 6 of 7 scored categories. Kagi Search API leads on security \u0026 auth.\n\n### Do Kagi Search API and Valyu need an API key?\n\nKagi Search API needs an API key. Valyu takes an API key or an OAuth sign-in.\n\n### Can an agent call Kagi Search API and Valyu without installing anything?\n\nYes. Kagi Search API has a hosted endpoint at https://kagi.com/api/v1/search and Valyu at https://api.valyu.ai/v1/search.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/kagi-search-vs-valyu.json, and with the fewest tokens: https://www.anchorterminal.com/compare/kagi-search-vs-valyu.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"kagi-search\", \"b\": \"valyu\"}`. From a terminal: `anchor compare kagi-search valyu`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/kagi-search.json and https://www.anchorterminal.com/api/v1/tools/valyu.json\n\n## Other comparisons with Kagi Search API or Valyu\n\n- [Brave Search API + MCP vs Kagi Search API](https://www.anchorterminal.com/compare/brave-search-mcp-vs-kagi-search.md)\n- [Brave Search API + MCP vs Valyu](https://www.anchorterminal.com/compare/brave-search-mcp-vs-valyu.md)\n- [Cloudflare Web Search API vs Kagi Search API](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-kagi-search.md)\n- [Cloudflare Web Search API vs Valyu](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-valyu.md)\n- [Exa API + MCP vs Kagi Search API](https://www.anchorterminal.com/compare/exa-mcp-vs-kagi-search.md)\n- [Exa API + MCP vs Valyu](https://www.anchorterminal.com/compare/exa-mcp-vs-valyu.md)\n- [Firecrawl MCP vs Kagi Search API](https://www.anchorterminal.com/compare/firecrawl-mcp-vs-kagi-search.md)\n- [Firecrawl MCP vs Valyu](https://www.anchorterminal.com/compare/firecrawl-mcp-vs-valyu.md)\n- [Grep AI vs Kagi Search API](https://www.anchorterminal.com/compare/grep-ai-vs-kagi-search.md)\n- [Kagi Search API vs Linkup](https://www.anchorterminal.com/compare/kagi-search-vs-linkup.md)\n- [Kagi Search API vs Parallel Search and Task APIs](https://www.anchorterminal.com/compare/kagi-search-vs-parallel-search-api.md)\n- [Kagi Search API vs SearchAPI.io](https://www.anchorterminal.com/compare/kagi-search-vs-searchapi-io.md)\n- [Kagi Search API vs SerpApi](https://www.anchorterminal.com/compare/kagi-search-vs-serpapi.md)\n- [Kagi Search API vs Serper](https://www.anchorterminal.com/compare/kagi-search-vs-serper.md)\n- [Kagi Search API vs SerpKite](https://www.anchorterminal.com/compare/kagi-search-vs-serpkite.md)\n- [Kagi Search API vs Tavily API + MCP](https://www.anchorterminal.com/compare/kagi-search-vs-tavily-mcp.md)\n- [Kagi Search API vs TinyFish Search](https://www.anchorterminal.com/compare/kagi-search-vs-tinyfish-search.md)\n- [Kagi Search API vs You.com APIs](https://www.anchorterminal.com/compare/kagi-search-vs-you-com-api.md)\n- [Linkup vs Valyu](https://www.anchorterminal.com/compare/linkup-vs-valyu.md)\n- [Parallel Search and Task APIs vs Valyu](https://www.anchorterminal.com/compare/parallel-search-api-vs-valyu.md)\n- [SearchAPI.io vs Valyu](https://www.anchorterminal.com/compare/searchapi-io-vs-valyu.md)\n- [SerpApi vs Valyu](https://www.anchorterminal.com/compare/serpapi-vs-valyu.md)\n- [Serper vs Valyu](https://www.anchorterminal.com/compare/serper-vs-valyu.md)\n- [SerpKite vs Valyu](https://www.anchorterminal.com/compare/serpkite-vs-valyu.md)\n- [Tavily API + MCP vs Valyu](https://www.anchorterminal.com/compare/tavily-mcp-vs-valyu.md)\n- [TinyFish Search vs Valyu](https://www.anchorterminal.com/compare/tinyfish-search-vs-valyu.md)\n- [Valyu vs You.com APIs](https://www.anchorterminal.com/compare/valyu-vs-you-com-api.md)\n- [Fetch (MCP reference server) vs Kagi Search API](https://www.anchorterminal.com/compare/fetch-reference-server-vs-kagi-search.md)\n- [Fetch (MCP reference server) vs Valyu](https://www.anchorterminal.com/compare/fetch-reference-server-vs-valyu.md)\n- [Grep AI vs Valyu](https://www.anchorterminal.com/compare/grep-ai-vs-valyu.md)\n",
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