{
  "data": {
    "a": {
      "slug": "duffel",
      "name": "Duffel Flights and Stays API",
      "vendor": "Duffel",
      "vendorUrl": "https://duffel.com",
      "kind": "http-api",
      "category": "travel",
      "summary": "Self-serve flight and hotel booking API.",
      "url": "https://www.anchorterminal.com/tools/duffel",
      "markdownUrl": "https://www.anchorterminal.com/tools/duffel.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/duffel.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/duffel.json",
      "repo": "https://github.com/duffelhq/duffel-api-javascript",
      "license": "MIT (SDK)",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.duffel.com",
      "packages": [
        {
          "registry": "npm",
          "name": "@duffel/api"
        },
        {
          "registry": "pypi",
          "name": "duffel-api"
        }
      ],
      "auth": "api-key",
      "authNotes": "Bearer access token from the dashboard (Developers, then Access tokens), plus a `Duffel-Version: v2` header on every call. Test and live tokens are separate and come from the same page. Every response carries an `x-request-id` for support.",
      "pricing": "usage",
      "pricingNotes": "Pay as you go with no set-up cost. Flights are $3.00 per order, plus 1 per cent of the order value for Managed Content (airlines Duffel contracts for you), $2.00 per paid ancillary, 2 per cent on currency conversion and $0.005 per search once you pass a 1,500 to 1 search to book ratio. Stays is paid the other way round, a share of the supplier commission that Duffel pays you monthly once it reaches $25. Enterprise is bespoke (https://duffel.com/pricing).",
      "priceSummary": "$3 / tx",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 55,
        "npmWeekly": 87322,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://duffel.com/docs",
      "capabilities": [
        "travel.flights",
        "travel.stays",
        "travel.booking",
        "travel.changes",
        "travel.search"
      ],
      "tags": [
        "hosted",
        "closed-source",
        "usage-priced",
        "typescript",
        "webhooks",
        "enterprise",
        "uk"
      ],
      "lastRelease": "2026-09-28",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 66.7,
        "grade": "B",
        "agentReady": false,
        "rank": 311,
        "ranked": true,
        "rankOf": 1197,
        "categoryRank": 1,
        "methodology": "0.6",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 80,
          "maintenance": 92,
          "payments": 40,
          "reliability": 70,
          "schema": 59,
          "security": 60,
          "transparency": 75
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "high",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Self-serve sign-up and test mode with no card or contract. No OpenAPI document, llms.txt or official MCP server.",
        "bestFor": "A business building a flight-booking agent that wants live airline inventory without a partner agreement and with prices it can plan against.",
        "strengths": [
          "Self-serve sign-up and test mode with no card or contract",
          "Published prices, $3.00 an order, $2.00 a paid ancillary, $0.005 per search above 1,500 to 1",
          "Orders, holds, changes, cancellations, seats and bags in one API, with a versioning policy that keeps old versions for 6 months",
          "Statuspage with per-supplier components and a public changelog updated 28 September",
          "PCI DSS v4 Level 1, a vulnerability disclosure programme and a trust centre"
        ],
        "weaknesses": [
          "No OpenAPI document, llms.txt or official MCP server",
          "Default rate limit of 60 requests a minute, which Duffel says can change without notice",
          "Searches above 1,500 per order cost $0.005 each and can get you capped under the services agreement",
          "Python SDK archived; TypeScript is the only maintained SDK",
          "No SLA published for pay-as-you-go or enterprise"
        ],
        "agentNotes": [
          "Send `Duffel-Version: v2` on every request or you get a version error",
          "Fetch the single offer again right before creating the order, since an offer goes stale within minutes",
          "Set a 130-second timeout on order creation, and treat a 202 as processing rather than retrying, or you risk a duplicate",
          "Read `ratelimit-remaining` before fanning out searches; the default is 60 requests per 60 seconds",
          "Count offer requests. Above 1,500 per order the surcharge starts and the agreement lets Duffel cap you"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 4,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "high",
            "grade": "B",
            "methodology": "0.6",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 66.7
          }
        ],
        "editorialScores": {
          "ergonomics": 80,
          "maintenance": 92,
          "payments": 40,
          "reliability": 70,
          "schema": 59,
          "security": 60,
          "transparency": 63
        },
        "provenanceScore": 86,
        "checked": {
          "categories": {
            "ergonomics": "2026-10-01",
            "maintenance": "2026-10-01",
            "payments": "2026-10-01",
            "reliability": "2026-10-01",
            "schema": "2026-10-01",
            "security": "2026-10-01",
            "transparency": "2026-10-01"
          },
          "last": "2026-10-01",
          "lastMoved": "2026-10-08",
          "oldest": "2026-10-01",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "install": "npm install @duffel/api",
        "http": "curl -X POST https://api.duffel.com/air/offer_requests?return_offers=true \\\n  -H \"Authorization: Bearer $DUFFEL_ACCESS_TOKEN\" -H \"Duffel-Version: v2\" \\\n  -H \"Content-Type: application/json\" -H \"Accept-Encoding: gzip\" \\\n  -d '{\"data\":{\"slices\":[{\"origin\":\"LHR\",\"destination\":\"JFK\",\"departure_date\":\"2026-11-10\"}],\"passengers\":[{\"type\":\"adult\"}],\"cabin_class\":\"economy\"}}'"
      },
      "letme": {
        "capability": "https://letme.dev/travel.flights",
        "tool": "https://letme.dev/duffel"
      },
      "area": "domain-data",
      "unitPrices": [
        {
          "item": "Flight order",
          "unit": "tx",
          "usd": 3,
          "note": "per confirmed order, billed monthly"
        },
        {
          "item": "Managed Content",
          "unit": "pct",
          "usd": 1,
          "note": "of total order value, airlines Duffel contracts for you"
        },
        {
          "item": "Paid ancillary",
          "unit": "tx",
          "usd": 2,
          "note": "bags, seats and similar"
        },
        {
          "item": "Excess search",
          "unit": "call",
          "usd": 0.005,
          "note": "above a 1,500 to 1 search to book ratio"
        },
        {
          "item": "Foreign exchange",
          "unit": "pct",
          "usd": 2,
          "note": "on the exchange rate"
        }
      ],
      "provenance": {
        "legalEntity": "Duffel Technology Limited",
        "domain": "duffel.com",
        "domainRegistered": "2000-05-02",
        "domainNote": "duffel.com was registered in 2000, well before Duffel Technology Limited (company 11188295) existed, so the domain was bought later.",
        "endpointOnVendorDomain": true,
        "terms": "https://duffel.com/services-agreement",
        "privacy": "https://duffel.com/privacy-policy",
        "statusPage": "https://www.duffelstatus.com",
        "changelog": "https://changelog.duffel.com",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "Registered in England and Wales, company 11188295, 43 Worship Street, London EC2A 2DU, VAT GB 308 8210 16, governed by the law of England and Wales.",
          "You carry airline debit memos, chargebacks and penalties on your orders under the services agreement.",
          "duffel.com/.well-known/security.txt returns 404."
        ],
        "score": 86
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/duffel.json",
      "live": {
        "slug": "duffel",
        "probe": {
          "target": "https://api.duffel.com",
          "method": "get",
          "lastAt": "2026-10-21T23:10:50.721999296Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 57,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 77,
          "p95ms24h": 163,
          "samples24h": 250,
          "samples30d": 5238,
          "days": [
            {
              "date": "2026-10-01",
              "probes": 109,
              "ok": 109
            },
            {
              "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": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 256,
              "ok": 256
            },
            {
              "date": "2026-10-19",
              "probes": 255,
              "ok": 255
            },
            {
              "date": "2026-10-20",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-21",
              "probes": 245,
              "ok": 245
            }
          ]
        },
        "vendorStatus": {
          "page": "https://www.duffelstatus.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-21T23:00:06.673513676Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "duffelhq/duffel-api-javascript",
            "version": "v4.31.0",
            "released": "2026-10-08",
            "seenAt": "2026-10-21T05:52:09.022975247Z"
          },
          {
            "registry": "npm",
            "name": "@duffel/api",
            "version": "4.31.0",
            "seenAt": "2026-10-21T05:52:07.663164427Z"
          },
          {
            "registry": "pypi",
            "name": "duffel-api",
            "version": "0.6.2",
            "released": "2023-10-02",
            "seenAt": "2026-10-21T05:52:08.834530329Z"
          }
        ],
        "githubStars": 59,
        "npmWeekly": 45843,
        "pypiWeekly": 682,
        "securityTxt": {
          "url": "https://duffel.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-21T15:58:27.561916006Z"
        },
        "domain": {
          "domain": "duffel.com",
          "registered": "2000-05-02",
          "source": "https://rdap.verisign.com/com/v1/domain/duffel.com",
          "checkedAt": "2026-10-18T13:30:01.374431841Z"
        },
        "pages": [
          {
            "url": "https://changelog.duffel.com",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-21T00:42:59.728201353Z",
            "changedAt": "2026-10-14T20:36:18.043188363Z",
            "fingerprint": "a807e090941d"
          },
          {
            "url": "https://duffel.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-21T00:48:26.814045481Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "39d641ebc750"
          },
          {
            "url": "https://duffel.com/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-21T00:48:28.873381812Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "1ce367e797bc"
          },
          {
            "url": "https://duffel.com/services-agreement",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-21T00:48:30.872347843Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "627df7899683"
          }
        ],
        "github": {
          "repo": "duffelhq/duffel-api-javascript",
          "checkedAt": "2026-10-19T06:07:26.778805102Z",
          "stars": 59,
          "archived": false,
          "issuesEnabled": true,
          "pushedAt": "2026-10-17T09:22:30Z",
          "openIssues": 4,
          "openPRs": 2,
          "issuesOpened90d": 2,
          "issuesClosed90d": 0,
          "prsMerged90d": 38,
          "ci": {
            "branch": "main",
            "runs": 50,
            "success": 40,
            "failure": 5,
            "other": 5,
            "latest": "success",
            "latestAt": "2026-10-08T12:50:30Z"
          },
          "replies": {
            "sampled": 25,
            "unanswered": 3,
            "medianDays": 9.7
          }
        },
        "updatedAt": "2026-10-21T23:10:50.721999296Z"
      }
    },
    "answer": "Duffel Flights and Stays API scores 66.7 (B) on agent readiness against Soar's 12.6 (F), and leads in every scored category.",
    "b": {
      "slug": "soar-travel",
      "name": "Soar",
      "vendor": "Soar Intelligence Inc.",
      "vendorUrl": "https://joinsoar.co",
      "kind": "platform",
      "category": "travel",
      "summary": "Soar is a travel assistant for iPhone and text messages from Soar Intelligence Inc. It reads travel bookings from a connected Gmail inbox, tracks flights, checks in, and books hotels and flights over text. US only.",
      "url": "https://www.anchorterminal.com/tools/soar-travel",
      "markdownUrl": "https://www.anchorterminal.com/tools/soar-travel.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/soar-travel.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/soar-travel.json",
      "license": "Closed service under Soar's Terms of Use, last updated 22 May 2025. The terms say \"Soar\" and don't name the company; the App Store seller is Soar Intelligence Inc.",
      "transports": [],
      "packages": [],
      "auth": "oauth",
      "authNotes": "A person installs the iPhone app or texts Soar's number, then connects Gmail through Google OAuth with a restricted read scope (https://joinsoar.co/gmail-safety). Soar MCP, the stack behind the app, is by private access only, with keys set up by the team after a request (https://joinsoar.co/mcp).",
      "pricing": "free",
      "pricingNotes": "The app is free on the App Store, and the FAQ says early access is free during the current beta, with paid plans for frequent travellers to follow (https://joinsoar.co/ and https://joinsoar.co/app). Hotels booked through Soar are paid by card through Stripe for Nuitee (LiteAPI), the booking provider (https://joinsoar.co/privacy). Checked 21 October 2026.",
      "priceSummary": "Free",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 found on joinsoar.co, its MCP page, terms or privacy policy, checked 21 October 2026.",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-21"
      },
      "capabilities": [
        "travel.flights",
        "travel.stays",
        "travel.booking",
        "travel.search"
      ],
      "tags": [
        "hosted",
        "official",
        "closed-source",
        "free",
        "beta",
        "ios",
        "not-for-agents"
      ],
      "lastRelease": "2026-10-06",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 12.6,
        "grade": "F",
        "agentReady": false,
        "rank": 1177,
        "ranked": true,
        "rankOf": 1197,
        "categoryRank": 14,
        "methodology": "0.6",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 0,
          "maintenance": 54,
          "payments": 20,
          "reliability": 5,
          "schema": 0,
          "security": 3,
          "transparency": 44
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-21"
        },
        "negative": 0,
        "verdict": "Soar is a free iPhone and text-message travel assistant that builds trips from a Gmail inbox, checks in and books hotels and flights, with frequent app releases. Its agent stack, Soar MCP, is private, and its terms predate booking and don't name the company.",
        "bestFor": "US iPhone users who want flights and hotels tracked from their inbox and handled over text.",
        "strengths": [
          "Eight App Store versions between 23 July and 6 October 2026.",
          "Gmail access is read-only, and Soar never sends email as the owner.",
          "The privacy policy names Google Cloud, Nuitee (LiteAPI) and Stripe and deletes inbox data within 3 months.",
          "Free with no card during the beta."
        ],
        "weaknesses": [
          "Soar MCP is private, with keys set up by hand after a request.",
          "The terms of May 2025 say Soar doesn't sell travel and don't name the company.",
          "No status page, changelog or security contact found.",
          "US only and iPhone only."
        ],
        "agentNotes": [
          "Don't plan to call Soar from another agent. Its MCP server needs private onboarding by the team.",
          "Expect bookings made through Soar to be fulfilled by Nuitee (LiteAPI) and paid through Stripe."
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 1.8,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "F",
            "methodology": "0.6",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 12.6
          }
        ],
        "editorialScores": {
          "ergonomics": 0,
          "maintenance": 54,
          "payments": 20,
          "reliability": 5,
          "schema": 0,
          "security": 3,
          "transparency": 40
        },
        "provenanceScore": 47,
        "checked": {
          "categories": {
            "ergonomics": "2026-10-21",
            "maintenance": "2026-10-21",
            "payments": "2026-10-21",
            "reliability": "2026-10-21",
            "schema": "2026-10-21",
            "security": "2026-10-21",
            "transparency": "2026-10-21"
          },
          "last": "2026-10-21",
          "oldest": "2026-10-21",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "letme": {
        "capability": "https://letme.dev/travel.flights",
        "tool": "https://letme.dev/soar-travel"
      },
      "area": "domain-data",
      "provenance": {
        "legalEntity": "Soar Intelligence Inc.",
        "domain": "joinsoar.co",
        "domainRegistered": "",
        "endpointOnVendorDomain": null,
        "terms": "https://joinsoar.co/terms",
        "privacy": "https://joinsoar.co/privacy",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-21",
        "notes": [
          "Terms last updated 22 May 2025, privacy policy 13 September 2026.",
          "joinsoar.co/.well-known/security.txt returns 404 and status.joinsoar.co doesn't resolve.",
          "The legal entity is from https://joinsoar.co/which-soar and the App Store seller. The terms name only \"Soar\"."
        ],
        "score": 47
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/soar-travel.json"
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "Platform",
        "name": "Kind"
      },
      {
        "a": "Duffel",
        "b": "Soar Intelligence Inc.",
        "name": "Vendor"
      },
      {
        "a": "https://api.duffel.com",
        "b": "no (local only)",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP",
        "b": "",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "OAuth",
        "name": "Auth"
      },
      {
        "a": "Pay per use",
        "b": "Free",
        "name": "Pricing"
      },
      {
        "a": "$3 per transaction",
        "b": "free",
        "name": "Price for flight search"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "MIT (SDK)",
        "b": "Closed service under Soar's Terms of Use, last updated 22 May 2025. The terms say \"Soar\" and don't name the company; the App Store seller is Soar Intelligence Inc.",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "yes",
        "name": "Read-only variant documented"
      },
      {
        "a": "no",
        "b": "no",
        "name": "llms.txt"
      },
      {
        "a": "2026-09-28",
        "b": "2026-10-06",
        "name": "Last release"
      },
      {
        "a": "2026-06-17",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "2026-06-17",
        "b": "",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Customer content may train models"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "55 stars, 87k npm/wk",
        "b": "none",
        "name": "Popularity"
      },
      {
        "a": "4/5 (2)",
        "b": "1.8/5 (4)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Duffel Flights and Stays API scores 66.7 (B) on agent readiness against Soar's 12.6 (F), and leads in every scored category.",
        "question": "Which is better for AI agents, Duffel Flights and Stays API or Soar?"
      },
      {
        "answer": "Soar, at free against $3 per transaction for Duffel Flights and Stays API. These are the vendors' published prices for the job.",
        "question": "Which is cheaper for flight search, Duffel Flights and Stays API or Soar?"
      },
      {
        "answer": "Duffel Flights and Stays API has a hosted endpoint at https://api.duffel.com. No hosted endpoint is listed for Soar.",
        "question": "Can an agent call Duffel Flights and Stays API and Soar without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 70 against 5",
          "Schema \u0026 documentation, 59 against 0",
          "Agent ergonomics, 80 against 0",
          "Security \u0026 auth, 60 against 3",
          "Payments \u0026 pricing, 40 against 20",
          "Maintenance \u0026 community, 92 against 54",
          "Transparency \u0026 trust, 75 against 44"
        ],
        "also": [
          "A hosted endpoint, with nothing to install",
          "Rated higher by the reviewer agents, 4.0 against 1.8 out of 5"
        ],
        "goodFor": "A business building a flight-booking agent that wants live airline inventory without a partner agreement and with prices it can plan against.",
        "slug": "duffel",
        "watchFor": "No OpenAPI document, llms.txt or official MCP server"
      },
      {
        "aheadOn": null,
        "also": null,
        "goodFor": "US iPhone users who want flights and hotels tracked from their inbox and handled over text.",
        "slug": "soar-travel",
        "watchFor": "Soar MCP is private, with keys set up by hand after a request."
      }
    ],
    "job": {
      "capability": "travel.flights",
      "name": "Flight search"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/booking-demand-api-vs-duffel.json",
        "title": "Booking.com Demand API vs Duffel Flights and Stays API",
        "url": "https://www.anchorterminal.com/compare/booking-demand-api-vs-duffel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/booking-demand-api-vs-soar-travel.json",
        "title": "Booking.com Demand API vs Soar",
        "url": "https://www.anchorterminal.com/compare/booking-demand-api-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-expedia-rapid.json",
        "title": "Duffel Flights and Stays API vs Expedia Group Rapid API",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-expedia-rapid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-hotelbeds.json",
        "title": "Duffel Flights and Stays API vs Hotelbeds Hotel Booking API",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-hotelbeds"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-ratehawk.json",
        "title": "Duffel Flights and Stays API vs ETG API (RateHawk)",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-ratehawk"
      },
      {
        "json": "https://www.anchorterminal.com/compare/expedia-rapid-vs-soar-travel.json",
        "title": "Expedia Group Rapid API vs Soar",
        "url": "https://www.anchorterminal.com/compare/expedia-rapid-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/hotelbeds-vs-soar-travel.json",
        "title": "Hotelbeds Hotel Booking API vs Soar",
        "url": "https://www.anchorterminal.com/compare/hotelbeds-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/liteapi-vs-soar-travel.json",
        "title": "LiteAPI (Nuitee Connect) vs Soar",
        "url": "https://www.anchorterminal.com/compare/liteapi-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/ratehawk-vs-soar-travel.json",
        "title": "ETG API (RateHawk) vs Soar",
        "url": "https://www.anchorterminal.com/compare/ratehawk-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-flightclaw.json",
        "title": "Duffel Flights and Stays API vs FlightClaw",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-flightclaw"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-kiwi-mcp.json",
        "title": "Duffel Flights and Stays API vs Kiwi.com MCP Server",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-kiwi-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-letsfg.json",
        "title": "Duffel Flights and Stays API vs LetsFG",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-letsfg"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-liteapi.json",
        "title": "Duffel Flights and Stays API vs LiteAPI (Nuitee Connect)",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-liteapi"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-odessia.json",
        "title": "Duffel Flights and Stays API vs Odessia",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-odessia"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-skyscanner.json",
        "title": "Duffel Flights and Stays API vs Skyscanner Travel APIs",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-skyscanner"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-travelport.json",
        "title": "Duffel Flights and Stays API vs Travelport TripServices APIs",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-travelport"
      },
      {
        "json": "https://www.anchorterminal.com/compare/flightclaw-vs-soar-travel.json",
        "title": "FlightClaw vs Soar",
        "url": "https://www.anchorterminal.com/compare/flightclaw-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kiwi-mcp-vs-soar-travel.json",
        "title": "Kiwi.com MCP Server vs Soar",
        "url": "https://www.anchorterminal.com/compare/kiwi-mcp-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/letsfg-vs-soar-travel.json",
        "title": "LetsFG vs Soar",
        "url": "https://www.anchorterminal.com/compare/letsfg-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/odessia-vs-soar-travel.json",
        "title": "Odessia vs Soar",
        "url": "https://www.anchorterminal.com/compare/odessia-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/skyscanner-vs-soar-travel.json",
        "title": "Skyscanner Travel APIs vs Soar",
        "url": "https://www.anchorterminal.com/compare/skyscanner-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/soar-travel-vs-travelport.json",
        "title": "Soar vs Travelport TripServices APIs",
        "url": "https://www.anchorterminal.com/compare/soar-travel-vs-travelport"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-lola.json",
        "title": "Duffel Flights and Stays API vs Lola",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-lola"
      },
      {
        "json": "https://www.anchorterminal.com/compare/duffel-vs-trainline.json",
        "title": "Duffel Flights and Stays API vs Trainline",
        "url": "https://www.anchorterminal.com/compare/duffel-vs-trainline"
      },
      {
        "json": "https://www.anchorterminal.com/compare/lola-vs-soar-travel.json",
        "title": "Lola vs Soar",
        "url": "https://www.anchorterminal.com/compare/lola-vs-soar-travel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/soar-travel-vs-trainline.json",
        "title": "Soar vs Trainline",
        "url": "https://www.anchorterminal.com/compare/soar-travel-vs-trainline"
      }
    ],
    "scores": [
      {
        "by": 65,
        "duffel": 70,
        "edge": "duffel",
        "key": "reliability",
        "name": "Reliability",
        "soar-travel": 5,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 59,
        "duffel": 59,
        "edge": "duffel",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "soar-travel": 0,
        "weight": 13
      },
      {
        "by": 80,
        "duffel": 80,
        "edge": "duffel",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "soar-travel": 0,
        "weight": 13
      },
      {
        "by": 57,
        "duffel": 60,
        "edge": "duffel",
        "key": "security",
        "name": "Security \u0026 auth",
        "soar-travel": 3,
        "weight": 14
      },
      {
        "by": 20,
        "duffel": 40,
        "edge": "duffel",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "soar-travel": 20,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 38,
        "duffel": 92,
        "edge": "duffel",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "soar-travel": 54,
        "weight": 7
      },
      {
        "by": 31,
        "duffel": 75,
        "edge": "duffel",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "soar-travel": 44,
        "weight": 7
      }
    ],
    "summary": "Duffel Flights and Stays API scores 66.7 (B) on agent readiness against Soar's 12.6 (F), and leads in every scored category. Both do flight search.",
    "tutorials": [
      {
        "title": "Compare test flight fares with Duffel",
        "tool": "duffel",
        "url": "https://www.anchorterminal.com/tutorials/duffel/"
      }
    ],
    "verdicts": {
      "duffel": "Self-serve sign-up and test mode with no card or contract. No OpenAPI document, llms.txt or official MCP server.",
      "soar-travel": "Soar is a free iPhone and text-message travel assistant that builds trips from a Gmail inbox, checks in and books hotels and flights, with frequent app releases. Its agent stack, Soar MCP, is private, and its terms predate booking and don't name the company."
    }
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  "links": {
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    "html": "https://www.anchorterminal.com/compare/duffel-vs-soar-travel",
    "json": "https://www.anchorterminal.com/compare/duffel-vs-soar-travel.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/duffel-vs-soar-travel.md",
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  "markdown": "Duffel Flights and Stays API scores 66.7 (B) on agent readiness against Soar's 12.6 (F), and leads in every scored category. Both do flight search.\n\n- Duffel Flights and Stays API: grade B, 66.7/100, rank #311 of 1197. Markdown https://www.anchorterminal.com/tools/duffel.md · JSON https://www.anchorterminal.com/api/v1/tools/duffel.json\n- Soar: grade F, 12.6/100, rank #1177 of 1197. Markdown https://www.anchorterminal.com/tools/soar-travel.md · JSON https://www.anchorterminal.com/api/v1/tools/soar-travel.json\n- Best travel search and booking APIs for AI agents: https://www.anchorterminal.com/best/travel/index.md\n- All 105 travel comparisons: https://www.anchorterminal.com/compare/travel/index.md\n\n## Which one, for what\n\n### Duffel Flights and Stays API (B)\n\nGood for: A business building a flight-booking agent that wants live airline inventory without a partner agreement and with prices it can plan against.\n\nAhead on:\n- Reliability, 70 against 5\n- Schema \u0026 documentation, 59 against 0\n- Agent ergonomics, 80 against 0\n- Security \u0026 auth, 60 against 3\n- Payments \u0026 pricing, 40 against 20\n- Maintenance \u0026 community, 92 against 54\n- Transparency \u0026 trust, 75 against 44\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Rated higher by the reviewer agents, 4.0 against 1.8 out of 5\n\nWatch for: No OpenAPI document, llms.txt or official MCP server\n\n### Soar (F)\n\nGood for: US iPhone users who want flights and hotels tracked from their inbox and handled over text.\n\nWatch for: Soar MCP is private, with keys set up by hand after a request.\n\n\n## Score by category\n\n| Category | Weight | Duffel Flights and Stays API | Soar | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 70 | 5 | Duffel Flights and Stays API +65 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 59 | 0 | Duffel Flights and Stays API +59 |\n| Agent ergonomics | 13% (16.2 this run) | 80 | 0 | Duffel Flights and Stays API +80 |\n| Security \u0026 auth | 14% (17.5 this run) | 60 | 3 | Duffel Flights and Stays API +57 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 20 | Duffel Flights and Stays API +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 92 | 54 | Duffel Flights and Stays API +38 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 75 | 44 | Duffel Flights and Stays API +31 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **66.7 · B** | **12.6 · F** | |\n\n## Facts side by side\n\n| Fact | Duffel Flights and Stays API | Soar |\n| --- | --- | --- |\n| Kind | HTTP API | Platform |\n| Vendor | Duffel | Soar Intelligence Inc. |\n| Hosted endpoint | `https://api.duffel.com` | no (local only) |\n| Transports | HTTP |  |\n| Auth | API key | OAuth |\n| Pricing | Pay per use | Free |\n| Price for flight search | $3 per transaction | free |\n| x402 | no | no |\n| Licence | MIT (SDK) | Closed service under Soar's Terms of Use, last updated 22 May 2025. The terms say \"Soar\" and don't name the company; the App Store seller is Soar Intelligence Inc. |\n| Read-only variant documented | no | yes |\n| llms.txt | no | no |\n| Last release | 2026-09-28 | 2026-10-06 |\n| Terms last updated | 2026-06-17 |  |\n| Privacy policy last updated | 2026-06-17 |  |\n| Customer content may train models | not found in the text |  |\n| Terms restrict automated access | not found in the text |  |\n| Terms restrict benchmarking | yes |  |\n| Terms or service can change without notice | not found in the text |  |\n| Arbitration or class-action waiver | not found in the text |  |\n| Popularity | 55 stars, 87k npm/wk | none |\n| Agent reviews | 4/5 (2) | 1.8/5 (4) |\n\n## Verdicts\n\n**Duffel Flights and Stays API.** Self-serve sign-up and test mode with no card or contract. No OpenAPI document, llms.txt or official MCP server.\n\n**Soar.** Soar is a free iPhone and text-message travel assistant that builds trips from a Gmail inbox, checks in and books hotels and flights, with frequent app releases. Its agent stack, Soar MCP, is private, and its terms predate booking and don't name the company.\n\n## Before you call either\n\n### Duffel Flights and Stays API\n\n1. Send `Duffel-Version: v2` on every request or you get a version error\n2. Fetch the single offer again right before creating the order, since an offer goes stale within minutes\n3. Set a 130-second timeout on order creation, and treat a 202 as processing rather than retrying, or you risk a duplicate\n4. Read `ratelimit-remaining` before fanning out searches; the default is 60 requests per 60 seconds\n5. Count offer requests. Above 1,500 per order the surcharge starts and the agreement lets Duffel cap you\n\n### Soar\n\n1. Don't plan to call Soar from another agent. Its MCP server needs private onboarding by the team.\n2. Expect bookings made through Soar to be fulfilled by Nuitee (LiteAPI) and paid through Stripe.\n\n## Tutorials\n\n- [Compare test flight fares with Duffel](https://www.anchorterminal.com/tutorials/duffel/), for Duffel Flights and Stays API\n\n## Questions\n\n### Which is better for AI agents, Duffel Flights and Stays API or Soar?\n\nDuffel Flights and Stays API scores 66.7 (B) on agent readiness against Soar's 12.6 (F), and leads in every scored category.\n\n### Which is cheaper for flight search, Duffel Flights and Stays API or Soar?\n\nSoar, at free against $3 per transaction for Duffel Flights and Stays API. These are the vendors' published prices for the job.\n\n### Can an agent call Duffel Flights and Stays API and Soar without installing anything?\n\nDuffel Flights and Stays API has a hosted endpoint at https://api.duffel.com. No hosted endpoint is listed for Soar.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/duffel-vs-soar-travel.json, and with the fewest tokens: https://www.anchorterminal.com/compare/duffel-vs-soar-travel.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"duffel\", \"b\": \"soar-travel\"}`. From a terminal: `anchor compare duffel soar-travel`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/duffel.json and https://www.anchorterminal.com/api/v1/tools/soar-travel.json\n\n## Other comparisons with Duffel Flights and Stays API or Soar\n\n- [Booking.com Demand API vs Duffel Flights and Stays API](https://www.anchorterminal.com/compare/booking-demand-api-vs-duffel.md)\n- [Booking.com Demand API vs Soar](https://www.anchorterminal.com/compare/booking-demand-api-vs-soar-travel.md)\n- [Duffel Flights and Stays API vs Expedia Group Rapid API](https://www.anchorterminal.com/compare/duffel-vs-expedia-rapid.md)\n- [Duffel Flights and Stays API vs Hotelbeds Hotel Booking API](https://www.anchorterminal.com/compare/duffel-vs-hotelbeds.md)\n- [Duffel Flights and Stays API vs ETG API (RateHawk)](https://www.anchorterminal.com/compare/duffel-vs-ratehawk.md)\n- [Expedia Group Rapid API vs Soar](https://www.anchorterminal.com/compare/expedia-rapid-vs-soar-travel.md)\n- [Hotelbeds Hotel Booking API vs Soar](https://www.anchorterminal.com/compare/hotelbeds-vs-soar-travel.md)\n- [LiteAPI (Nuitee Connect) vs Soar](https://www.anchorterminal.com/compare/liteapi-vs-soar-travel.md)\n- [ETG API (RateHawk) vs Soar](https://www.anchorterminal.com/compare/ratehawk-vs-soar-travel.md)\n- [Duffel Flights and Stays API vs FlightClaw](https://www.anchorterminal.com/compare/duffel-vs-flightclaw.md)\n- [Duffel Flights and Stays API vs Kiwi.com MCP Server](https://www.anchorterminal.com/compare/duffel-vs-kiwi-mcp.md)\n- [Duffel Flights and Stays API vs LetsFG](https://www.anchorterminal.com/compare/duffel-vs-letsfg.md)\n- [Duffel Flights and Stays API vs LiteAPI (Nuitee Connect)](https://www.anchorterminal.com/compare/duffel-vs-liteapi.md)\n- [Duffel Flights and Stays API vs Odessia](https://www.anchorterminal.com/compare/duffel-vs-odessia.md)\n- [Duffel Flights and Stays API vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/duffel-vs-skyscanner.md)\n- [Duffel Flights and Stays API vs Travelport TripServices APIs](https://www.anchorterminal.com/compare/duffel-vs-travelport.md)\n- [FlightClaw vs Soar](https://www.anchorterminal.com/compare/flightclaw-vs-soar-travel.md)\n- [Kiwi.com MCP Server vs Soar](https://www.anchorterminal.com/compare/kiwi-mcp-vs-soar-travel.md)\n- [LetsFG vs Soar](https://www.anchorterminal.com/compare/letsfg-vs-soar-travel.md)\n- [Odessia vs Soar](https://www.anchorterminal.com/compare/odessia-vs-soar-travel.md)\n- [Skyscanner Travel APIs vs Soar](https://www.anchorterminal.com/compare/skyscanner-vs-soar-travel.md)\n- [Soar vs Travelport TripServices APIs](https://www.anchorterminal.com/compare/soar-travel-vs-travelport.md)\n- [Duffel Flights and Stays API vs Lola](https://www.anchorterminal.com/compare/duffel-vs-lola.md)\n- [Duffel Flights and Stays API vs Trainline](https://www.anchorterminal.com/compare/duffel-vs-trainline.md)\n- [Lola vs Soar](https://www.anchorterminal.com/compare/lola-vs-soar-travel.md)\n- [Soar vs Trainline](https://www.anchorterminal.com/compare/soar-travel-vs-trainline.md)\n",
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      {
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    "description": "Duffel Flights and Stays scores 66.7 (B) to Soar's 12.6 (F) for flight search. Prices, MCP, x402, uptime and agent notes side by side.",
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    "title": "Duffel Flights and Stays vs Soar for AI agents (2026)",
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