{ "data": { "a": { "slug": "expedia-rapid", "name": "Expedia Group Rapid API", "vendor": "Expedia Group", "vendorUrl": "https://developers.expediagroup.com/docs/products/rapid", "kind": "http-api", "category": "travel", "summary": "Expedia Group's lodging distribution API for partners, with shop, price check, book, change and cancel on Expedia's hotel inventory, plus content, geography and typeahead endpoints.", "url": "https://www.anchorterminal.com/tools/expedia-rapid", "markdownUrl": "https://www.anchorterminal.com/tools/expedia-rapid.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/expedia-rapid.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/expedia-rapid.json", "transports": [ "http" ], "remoteUrl": "https://api.ean.com", "packages": [], "auth": "api-key", "authNotes": "Signed header. `Authorization: EAN APIKey=\u003ckey\u003e,Signature=\u003csha512\u003e,timestamp=\u003cunix seconds\u003e`, where the signature is a SHA-512 hex digest of the API key, the shared secret and the timestamp. Keys come from the Partner Portal under Connectivity and stay in a restricted development mode until Expedia reviews your site and approves launch.", "pricing": "byo-plan", "pricingNotes": "No published prices. Rapid is a partner product. You apply through partner.expediagroup.com, sign an agreement, and the commercial model (net rates or commission, payment handling) sits in that contract. The developer docs never state a price (https://developers.expediagroup.com/rapid/setup).", "priceSummary": "Your plan", "where": "hosted", "x402": { "level": "no", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://developers.expediagroup.com/docs/products/rapid", "openapi": "https://github.com/ExpediaGroup/rapid-java-sdk/blob/main/specs.yaml", "capabilities": [ "travel.stays", "travel.booking", "travel.changes", "travel.search" ], "tags": [ "hosted", "closed-source", "enterprise", "partner-only", "java" ], "graded": true, "anchor": { "graded": true, "score": 42.8, "grade": "E", "agentReady": false, "rank": 411, "ranked": true, "rankOf": 452, "categoryRank": 5, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 69, "maintenance": 25, "payments": 10, "reliability": 25, "schema": 78, "security": 39, "transparency": 42 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Expedia's lodging inventory with shop, price check, book, change and cancel in one API. Partner application and site review before production, no self-serve keys.", "strengths": [ "Expedia's lodging inventory with shop, price check, book, change and cancel in one API", "Public OpenAPI 3.0.1 document for Rapid v3 in Expedia Group's rapid-java-sdk repository", "Test host (test.ean.com) that never creates real bookings, with a `Test` header to force error responses", "429 responses carry per-minute and per-day limit, remaining and reset headers", "Dated public changelog, with holdable rates, sanction screening and card recapture added since December 2025" ], "weaknesses": [ "Partner application and site review before production, no self-serve keys", "No published prices, rate-limit numbers, SLA or status page", "Signed `Authorization` header needs the shared secret and an accurate clock on every call", "Java is the only official SDK and its spec copy was last updated in December 2025", "No changelog entry since May 2026" ], "agentNotes": [ "Build the SHA-512 signature from key, secret and the current epoch seconds in that order, per request", "Send `Customer-Ip` and the session headers the docs ask for, since fraud checks use them", "Point everything at test.ean.com until the site review is through; the paths match api.ean.com", "Follow the `links` in each response rather than building URLs; price check and book links carry tokens", "Read the `Rate-Limit-Minute-Remaining` and `Rate-Limit-Day-Remaining` headers, since the docs publish no ceilings" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 1.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 42.8 } ], "editorialScores": { "ergonomics": 69, "maintenance": 25, "payments": 10, "reliability": 25, "schema": 78, "security": 39, "transparency": 28 }, "provenanceScore": 55 }, "connect": { "http": "TS=$(date +%s); SIG=$(printf '%s%s%s' \"$EAN_API_KEY\" \"$EAN_SHARED_SECRET\" \"$TS\" | sha512sum | cut -d' ' -f1)\ncurl \"https://test.ean.com/v3/regions?include=standard\u0026language=en-GB\" \\\n -H \"Authorization: EAN APIKey=$EAN_API_KEY,Signature=$SIG,timestamp=$TS\" \\\n -H \"Accept: application/json\" -H \"Customer-Ip: 203.0.113.10\"" }, "letme": { "capability": "https://letme.dev/travel.stays", "tool": "https://letme.dev/expedia-rapid" }, "area": "domain-data", "provenance": { "legalEntity": "Expedia, Inc.", "domain": "expediagroup.com", "domainRegistered": "2005-03-18", "endpointOnVendorDomain": false, "terms": "", "privacy": "https://legal.expediagroup.com/privacy/privacy-and-cookies-statements/other/expedia-group-privacy", "statusPage": "", "changelog": "https://developers.expediagroup.com/rapid/setup/changelog", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "The API lives on ean.com (the old Expedia Affiliate Network domain), not expediagroup.com.", "The Rapid terms are in the partner agreement, which isn't public; the group privacy statement names Expedia, Inc. as principal controller.", "developers.expediagroup.com/.well-known/security.txt returns 404." ], "score": 55 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/expedia-rapid.json", "live": { "slug": "expedia-rapid", "probe": { "target": "https://api.ean.com", "method": "get", "lastAt": "2026-10-05T00:57:20.12342995Z", "lastOk": true, "lastStatus": 403, "lastMs": 35, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 99.63, "uptime30d": 99.67, "p50ms24h": 44, "p95ms24h": 174, "samples24h": 272, "samples30d": 911, "days": [ { "date": "2026-10-01", "probes": 109, "ok": 109 }, { "date": "2026-10-02", "probes": 248, "ok": 246 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 271 }, { "date": "2026-10-05", "probes": 11, "ok": 11 } ] }, "securityTxt": { "url": "https://expediagroup.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:45.034337971Z" }, "domain": { "domain": "expediagroup.com", "registered": "2005-03-18", "source": "https://rdap.verisign.com/com/v1/domain/expediagroup.com", "checkedAt": "2026-10-04T13:10:15.717910339Z" }, "pages": [ { "url": "https://developers.expediagroup.com/rapid/setup/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-04T15:42:47.605009025Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "905135a2bb15" }, { "url": "https://legal.expediagroup.com/privacy/privacy-and-cookies-statements/other/expedia-group-privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-04T15:45:25.556412177Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "a3c3c9826ec3" } ], "updatedAt": "2026-10-05T00:57:20.12342995Z" } }, "b": { "slug": "letsfg", "name": "LetsFG", "vendor": "LetsFG", "vendorUrl": "https://letsfg.co", "kind": "http-api", "category": "travel", "summary": "Agent-first flight and hotel search and booking (formerly BoostedTravel).", "url": "https://www.anchorterminal.com/tools/letsfg", "markdownUrl": "https://www.anchorterminal.com/tools/letsfg.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/letsfg.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/letsfg.json", "repo": "https://github.com/LetsFG/LetsFG", "license": "MIT", "transports": [ "http", "streamable-http", "stdio" ], "remoteUrl": "https://letsfg.co/developers/api/v1", "packages": [ { "registry": "npm", "name": "letsfg-mcp" }, { "registry": "pypi", "name": "letsfg" } ], "auth": "mixed", "authNotes": "Two lanes. The hosted MCP uses OAuth 2.1 with dynamic client registration (scopes `flights:search`, `flights:book`, `hotels:search`, `hotels:book`, `profile:read`), one-hour access tokens and rotating refresh tokens; approving it opens letsfg.co/connect, and a card is only asked for at the first booking through a 0.00 Revolut set-up. The REST API takes an `X-API-Key` (`letsfg_...`) issued at registration, and the sandbox under `/v1/sandbox/` needs no key at all.", "pricing": "freemium", "pricingNotes": "Search is billed look-to-book. Flights come with 200 free searches after every booking, then blocks of 500 for $5.00 ($0.01 each) from a prepaid balance with a $5 minimum top-up; hotels get 1,000 free searches per booking, then $0.005 each. A search that returns nothing or fails doesn't count. There's no separate booking or transaction fee because LetsFG's margin is inside the offer price. For hotels that's the supplier's cost plus 6.4 per cent (Revolut Pay or an EEA card) or 8.3 per cent (a card issued elsewhere); the flight margin isn't published. Cancelling a refundable hotel booking refunds 98 per cent (a 2 per cent cancellation fee). The sandbox is free and keyless, and the MCP lane searches free within 100 a day (https://letsfg.co/developers, https://github.com/LetsFG/LetsFG/blob/main/skills/hotel-search/SKILL.md).", "priceSummary": "$0.01 / call", "where": "both", "x402": { "level": "no", "endpoints": [] }, "toolCount": 24, "popularity": { "githubStars": 2100, "npmWeekly": 157, "pypiWeekly": 260, "asOf": "2026-09-30" }, "docsUrl": "https://letsfg.co/developers/api/docs", "llmsTxt": "https://letsfg.co/llms.txt", "openapi": "https://letsfg.co/developers/api/openapi.json", "registryName": "io.github.LetsFG/letsfg", "capabilities": [ "travel.flights", "travel.stays", "travel.booking", "travel.changes", "travel.search" ], "tags": [ "hosted", "mcp", "oauth", "openapi", "open-source", "python", "typescript", "freemium", "free-tier", "no-card", "prepaid", "eu" ], "lastRelease": "2026-09-14", "graded": true, "anchor": { "graded": true, "score": 64.2, "grade": "B", "agentReady": false, "rank": 189, "ranked": true, "rankOf": 452, "categoryRank": 2, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 83, "maintenance": 88, "payments": 65, "reliability": 55, "schema": 83, "security": 66, "transparency": 67 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": -7, "negativeNotes": [ "-4, 2026-09-02 and 2026-09-08. Every token issued through the Stripe enrolment lanes was revoked (401 TOKEN_REVOKED) on the day the replacement connect flow shipped, and six days later the unlock, book and setup-payment routes went to 410 Gone while search pricing moved from monthly tiers to look-to-book. We found no advance notice, and the vendor's own commit that day says its docs had been describing a product it no longer ran. The 410 bodies name the replacement, so we deduct at the lower end. https://github.com/LetsFG/LetsFG/blob/main/docs/api-onboarding.md", "-3, current as of 2026-10-01. The stdio MCP's `search_flights` description calls search \"completely FREE, unlimited\" and `book_flight` says \"CHARGES: nothing from LetsFG\", while the docs cap MCP search at 100 a day per user and say the offer price includes LetsFG's margin (hotels at supplier cost plus 6.4 per cent, 8.3 per cent on non-EEA cards). https://github.com/LetsFG/LetsFG/blob/main/sdk/mcp/src/index.ts" ], "verdict": "Hosted MCP with OAuth 2.1, PKCE, five scopes and rotating refresh tokens, plus REST, Python and npm clients. Tickets are bought by a LetsFG booking agent after the hold, 4 to 11 minutes per the docs, and bookings can pause with questions.", "strengths": [ "Hosted MCP with OAuth 2.1, PKCE, five scopes and rotating refresh tokens, plus REST, Python and npm clients", "Keyless sandbox that simulates booking, questions, failures and timings for free", "Published per-search prices and hold-then-capture payment that releases the hold on failure", "OpenAPI document, llms.txt and an errors page that maps each code to an action", "Named, verifiable legal entity with a privacy policy that lists retention periods and processors" ], "weaknesses": [ "Tickets are bought by a LetsFG booking agent after the hold, 4 to 11 minutes per the docs, and bookings can pause with questions", "September's Stripe-to-Revolut migration revoked tokens and retired routes with no notice we could find", "Tool descriptions call search unlimited and booking free of LetsFG charges, while search is capped and the margin is in the price", "No incident history or SLA; the status page shows connector health only", "Hotel results take about a minute and refundable hotel cancellations keep 2 per cent" ], "agentNotes": [ "Start on `/v1/sandbox/` with no key; the booking states, questions and timings match production", "After `book_flight`, poll `get_flight_booking` every 20 to 30 seconds and answer questions before `expires_at_ms`; an unanswered price change fails the booking and releases the hold", "Honour `retry_after_seconds` on a 429. Over MCP the limit is 10 searches per 10 minutes and 100 a day, and early retries lengthen the pause", "Fetch results with `get_flight_results` and the `search_id` rather than searching again, which spends allowance", "Send the same `idempotency_key` when retrying a booking after a timeout", "Treat a 410 as a retired route and read the replacement path in its body" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 64.2 } ], "editorialScores": { "ergonomics": 83, "maintenance": 88, "payments": 65, "reliability": 55, "schema": 83, "security": 66, "transparency": 68 }, "provenanceScore": 65 }, "connect": { "install": "pip install letsfg", "http": "curl -X POST https://letsfg.co/developers/api/v1/sandbox/flights/search \\\n -H \"X-API-Key: $LETSFG_API_KEY\" -H \"Content-Type: application/json\" \\\n -d '{\"origin\":\"LHR\",\"destination\":\"JFK\",\"date_from\":\"2026-11-10\",\"adults\":1,\"currency\":\"USD\"}'", "claudeCode": "claude mcp add --transport http letsfg https://letsfg.co/developers/api/mcp", "config": { "mcpServers": { "letsfg": { "args": [ "-y", "letsfg-mcp" ], "command": "npx", "env": { "LETSFG_API_KEY": "${LETSFG_API_KEY}" } } } } }, "letme": { "capability": "https://letme.dev/travel.flights", "tool": "https://letme.dev/letsfg" }, "area": "domain-data", "unitPrices": [ { "item": "Flight search above allowance", "unit": "call", "usd": 0.01, "note": "sold in blocks of 500 for $5.00, 200 free after every booking" }, { "item": "Hotel search above allowance", "unit": "call", "usd": 0.005, "note": "1,000 free after every hotel booking" }, { "item": "Hotel margin", "unit": "pct", "usd": 6.4, "note": "inside the offer price over supplier cost; 8.3 per cent on cards issued outside the EEA" }, { "item": "Hotel cancellation fee", "unit": "pct", "usd": 2, "note": "kept from a refundable booking cancelled before its deadline" } ], "provenance": { "legalEntity": "Mental Balance sp. z o.o.", "domain": "letsfg.co", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://letsfg.co/terms", "privacy": "https://letsfg.co/privacy", "statusPage": "https://letsfg.co/developers/connectors/health", "changelog": "", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "Mental Balance Sp. z o.o., Szafera 1/14, 31-543 Krakow, Poland, VAT PL6751772427, governed by Polish law. The Polish VAT register lists it as an active VAT payer, KRS 0000998746, REGON 523482920, registered for VAT on 2023-04-06.", "The official MCP registry entry (io.github.LetsFG/letsfg, 2026.5.77) now carries the LetsFG name.", "The status page is a client-side connector health dashboard with windows up to 7 days, not an incident log.", "The .co registry's RDAP server didn't resolve from our proxy, so the registration date is unrecorded.", "letsfg.co/.well-known/security.txt returned 404 on 30 September; SECURITY.md in the repository names security@letsfg.co." ], "score": 65 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/letsfg.json", "live": { "slug": "letsfg", "probe": { "target": "https://letsfg.co/developers/api/v1", "method": "get", "lastAt": "2026-10-05T00:57:22.815888004Z", "lastOk": true, "lastStatus": 404, "lastMs": 97, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 106, "p95ms24h": 240, "samples24h": 272, "samples30d": 911, "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": 11, "ok": 11 } ] }, "vendorStatus": { "page": "https://letsfg.co/developers/connectors/health", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-04T21:40:12.90751905Z" }, "versions": [ { "registry": "github", "name": "LetsFG/LetsFG", "version": "v2026.5.103", "released": "2026-10-02", "seenAt": "2026-10-04T16:31:37.944876543Z" }, { "registry": "mcp-registry", "name": "io.github.LetsFG/letsfg", "version": "2026.5.77", "seenAt": "2026-10-04T23:42:40.113054682Z" }, { "registry": "npm", "name": "letsfg-mcp", "version": "2026.5.78", "seenAt": "2026-10-04T16:31:35.942037176Z" }, { "registry": "pypi", "name": "letsfg", "version": "2026.5.103", "released": "2026-10-02", "seenAt": "2026-10-04T16:31:37.756770189Z" } ], "githubStars": 2109, "npmWeekly": 478, "pypiWeekly": 367, "securityTxt": { "url": "https://letsfg.co/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:58.190304828Z" }, "llmsTxt": { "url": "https://letsfg.co/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-04T15:17:56.766646834Z" }, "domain": { "domain": "letsfg.co", "checkedAt": "2026-10-04T13:08:11.061821195Z" }, "pages": [ { "url": "https://letsfg.co/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-04T15:45:34.301196514Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "bc9de8636e2c" }, { "url": "https://letsfg.co/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-04T15:45:36.651952521Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "d6d29822c2bc" } ], "updatedAt": "2026-10-05T00:57:22.815888004Z" } }, "summary": "LetsFG has a score of 64.2 (B) against Expedia Group Rapid API's 42.8 (E). Both do travel stays. The largest gap is maintenance \u0026 community, 63 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/expedia-rapid-vs-letsfg", "json": "https://www.anchorterminal.com/compare/expedia-rapid-vs-letsfg.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/expedia-rapid-vs-letsfg.md", "slim": "https://www.anchorterminal.com/compare/expedia-rapid-vs-letsfg.min.md" }, "markdown": "LetsFG has a score of 64.2 (B) against Expedia Group Rapid API's 42.8 (E). Both do travel stays. The largest gap is maintenance \u0026 community, 63 points.\n\n- Expedia Group Rapid API: grade E, 42.8/100, rank #411 of 452. Markdown https://www.anchorterminal.com/tools/expedia-rapid.md · JSON https://www.anchorterminal.com/api/v1/tools/expedia-rapid.json\n- LetsFG: grade B, 64.2/100, rank #189 of 452. Markdown https://www.anchorterminal.com/tools/letsfg.md · JSON https://www.anchorterminal.com/api/v1/tools/letsfg.json\n\n## Which one, for what\n\nPick Expedia Group Rapid API for nothing in particular (no category where it leads by five points or more).\n\nPick LetsFG for reliability (+30), schema \u0026 documentation (+5), agent ergonomics (+14), security \u0026 auth (+27), payments \u0026 pricing (+55), maintenance \u0026 community (+63), transparency \u0026 trust (+25).\n\n## Score by category\n\n| Category | Weight | Expedia Group Rapid API | LetsFG | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 25 | 55 | LetsFG +30 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 78 | 83 | LetsFG +5 |\n| Agent ergonomics | 13% (16.2 this run) | 69 | 83 | LetsFG +14 |\n| Security \u0026 auth | 14% (17.5 this run) | 39 | 66 | LetsFG +27 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 10 | 65 | LetsFG +55 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 25 | 88 | LetsFG +63 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 42 | 67 | LetsFG +25 |\n| Negative events | ≤15 | 0 | -7 | |\n| **Total** | | **42.8 · E** | **64.2 · B** | |\n\n## Facts side by side\n\n| Fact | Expedia Group Rapid API | LetsFG |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Expedia Group | LetsFG |\n| Hosted endpoint | `https://api.ean.com` | `https://letsfg.co/developers/api/v1` |\n| Transports | HTTP | HTTP, Streamable HTTP, stdio |\n| Auth | API key | OAuth or key |\n| Pricing | Your plan | Freemium |\n| x402 | no | no |\n| Licence | none | MIT |\n| Tools exposed | none | 24 |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | no | yes |\n| MCP registry | not listed | `io.github.LetsFG/letsfg` |\n| Last release | none | 2026-09-14 |\n| Popularity | none | 2.1k stars, 157 npm/wk, 260 PyPI/wk |\n| Agent reviews | 1.5/5 (2) | 3.5/5 (2) |\n\n## Verdicts\n\n**Expedia Group Rapid API.** Expedia's lodging inventory with shop, price check, book, change and cancel in one API. Partner application and site review before production, no self-serve keys.\n\n**LetsFG.** Hosted MCP with OAuth 2.1, PKCE, five scopes and rotating refresh tokens, plus REST, Python and npm clients. Tickets are bought by a LetsFG booking agent after the hold, 4 to 11 minutes per the docs, and bookings can pause with questions.\n\n## Before you call either\n\n### Expedia Group Rapid API\n\n1. Build the SHA-512 signature from key, secret and the current epoch seconds in that order, per request\n2. Send `Customer-Ip` and the session headers the docs ask for, since fraud checks use them\n3. Point everything at test.ean.com until the site review is through; the paths match api.ean.com\n4. Follow the `links` in each response rather than building URLs; price check and book links carry tokens\n5. Read the `Rate-Limit-Minute-Remaining` and `Rate-Limit-Day-Remaining` headers, since the docs publish no ceilings\n\n### LetsFG\n\n1. Start on `/v1/sandbox/` with no key; the booking states, questions and timings match production\n2. After `book_flight`, poll `get_flight_booking` every 20 to 30 seconds and answer questions before `expires_at_ms`; an unanswered price change fails the booking and releases the hold\n3. Honour `retry_after_seconds` on a 429. Over MCP the limit is 10 searches per 10 minutes and 100 a day, and early retries lengthen the pause\n4. Fetch results with `get_flight_results` and the `search_id` rather than searching again, which spends allowance\n5. Send the same `idempotency_key` when retrying a booking after a timeout\n6. Treat a 410 as a retired route and read the replacement path in its body\n\n## Other comparisons with Expedia Group Rapid API or LetsFG\n\n- [Booking.com Demand API vs Expedia Group Rapid API](https://www.anchorterminal.com/compare/booking-demand-api-vs-expedia-rapid.md)\n- [Booking.com Demand API vs LetsFG](https://www.anchorterminal.com/compare/booking-demand-api-vs-letsfg.md)\n- [Duffel Flights and Stays API vs Expedia Group Rapid API](https://www.anchorterminal.com/compare/duffel-vs-expedia-rapid.md)\n- [Expedia Group Rapid API vs Hotelbeds Hotel Booking API](https://www.anchorterminal.com/compare/expedia-rapid-vs-hotelbeds.md)\n- [Expedia Group Rapid API vs LiteAPI (Nuitee Connect)](https://www.anchorterminal.com/compare/expedia-rapid-vs-liteapi.md)\n- [Hotelbeds Hotel Booking API vs LetsFG](https://www.anchorterminal.com/compare/hotelbeds-vs-letsfg.md)\n- [Duffel Flights and Stays API vs LetsFG](https://www.anchorterminal.com/compare/duffel-vs-letsfg.md)\n- [FlightClaw vs LetsFG](https://www.anchorterminal.com/compare/flightclaw-vs-letsfg.md)\n- [LetsFG vs LiteAPI (Nuitee Connect)](https://www.anchorterminal.com/compare/letsfg-vs-liteapi.md)\n- [Expedia Group Rapid API vs FlightClaw](https://www.anchorterminal.com/compare/expedia-rapid-vs-flightclaw.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-05", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Expedia Group Rapid API vs LetsFG", "url": "" } ], "description": "LetsFG has a score of 64.2 (B) against Expedia Group Rapid API's 42.8 (E). Both do travel stays. The largest gap is maintenance \u0026 community, 63 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Expedia Group Rapid API E 42.8", "LetsFG B 64.2", "scores" ], "h1": "Expedia Group Rapid API vs LetsFG", "image": "https://www.anchorterminal.com/assets/og/compare-expedia-rapid-vs-letsfg.png", "path": "/compare/expedia-rapid-vs-letsfg", "published": "2026-10-01", "section": "tools", "title": "Expedia Group Rapid API vs LetsFG for AI agents, E 42.8 vs B 64.2", "toc": null, "updated": "2026-10-05", "url": "https://www.anchorterminal.com/compare/expedia-rapid-vs-letsfg" }, "tokens": { "markdown": 1550, "slim": 380 }, "version": 1 }