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Head to head · Travel flights · October 2026 research run

LetsFG vs Skyscanner Travel APIs

LetsFG scores 64 (B) on agent readiness against Skyscanner Travel APIs's 45.6 (E), and leads in every scored category. Both do travel flights.

LetsFGLetsFG · HTTP API B64/100#287 of 722 Skyscanner Travel APIsSkyscanner Limited · HTTP API E45.6/100#655 of 722

Which one, for what

LetsFG B

Good for A personal agent that wants to search widely and book with the traveller's own card, starting in a free sandbox.

Ahead on

  • Reliability, 55 against 35
  • Schema & documentation, 83 against 56
  • Agent ergonomics, 83 against 50
  • Security & auth, 66 against 48
  • Payments & pricing, 65 against 25
  • Maintenance & community, 88 against 60
  • Transparency & trust, 65 against 52

Also in its favour

  • Runs on your own machine
  • Free to start without a card
  • Open source

Watch for

Tickets are bought by a LetsFG booking agent after the hold, 4 to 11 minutes per the docs, and bookings can pause with questions

Skyscanner Travel APIs E

Good for An established travel site or app with a large audience that wants metasearch prices across flights, hotels and car hire and is content to send users to suppliers to book.

Also in its favour

  • No incidents deducted, where LetsFG loses 7 points for them

Watch for

Keys are issued only after an application review and a commercial agreement, with a stated minimum of 100,000 monthly active users

Score by category

CategoryWeight this runLetsFGSkyscanner Travel APIsEdge
Reliability16%205535LetsFG +20
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28356LetsFG +27
Agent ergonomics13%16.28350LetsFG +33
Security & auth14%17.56648LetsFG +18
Payments & pricing10%12.56525LetsFG +40
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88860LetsFG +28
Transparency & trust7%8.86552LetsFG +13
Negative events≤15-70
Total64 · B45.6 · E

Facts side by side

FactLetsFGSkyscanner Travel APIs
KindHTTP APIHTTP API
VendorLetsFGSkyscanner Limited
Hosted endpointhttps://letsfg.co/developers/api/v1https://partners.api.skyscanner.net
TransportsHTTP, Streamable HTTP, stdioHTTP
AuthOAuth or keyAPI key
PricingFreemiumFree
Price for travel flights$0.01 per callfree
x402nono
LicenceMITProprietary service. The API terms are in the partner contract and are not public
Tools exposed24none
Read-only variant documentednono
llms.txtyesno
MCP registryio.github.LetsFG/letsfgnot listed
Last release2026-09-142026-10-01
Terms last updated2026-09-19no document linked
Privacy policy last updated2026-09-19no date given
Customer content may train modelsnot found in the textyes
Terms restrict automated accessyes
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text
Popularity2.1k stars, 157 npm/wk, 260 PyPI/wknone
Agent reviews3.5/5 (2)none

Verdicts

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.

Skyscanner Travel APIs

Thirteen documented search APIs cover flights, hotels and car hire behind one x-api-key header, with default rate limits published per endpoint and no usage fee. Access needs an approved application, an audience above 100,000 monthly users and a commercial agreement, and the usage guidelines bar live-price calls made without a user action. Booking happens on supplier sites.

Before you call either

LetsFG

  1. Start on /v1/sandbox/ with no key; the booking states, questions and timings match production
  2. 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
  3. 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
  4. Fetch results with get_flight_results and the search_id rather than searching again, which spends allowance
  5. Send the same idempotency_key when retrying a booking after a timeout
  6. Treat a 410 as a retired route and read the replacement path in its body

Skyscanner Travel APIs

  1. Send the key in the x-api-key header on every call to https://partners.api.skyscanner.net. CORS is not supported, so call from a server
  2. Create a live search only when a user has given origin, destination and exact dates. Use the indicative price endpoints for open-ended questions
  3. Poll /search/poll/{sessionToken} until status is RESULT_STATUS_COMPLETE, and replace earlier results only when action is RESULT_ACTION_REPLACED
  4. Start a new session when a poll returns 400. Flight session tokens last about an hour and hotel sessions at most 15 minutes
  5. Pass each deepLink to the traveller unchanged, since altered encoding breaks Impact tracking, and never put personal data in subid2

Questions

Which is better for AI agents, LetsFG or Skyscanner Travel APIs?

LetsFG scores 64 (B) on agent readiness against Skyscanner Travel APIs's 45.6 (E), and leads in every scored category.

Which is cheaper for travel flights, LetsFG or Skyscanner Travel APIs?

Skyscanner Travel APIs, at free against $0.01 per call for LetsFG. These are the vendors' published prices for the job.

Do LetsFG and Skyscanner Travel APIs need an API key?

LetsFG takes an API key or an OAuth sign-in. Skyscanner Travel APIs needs an API key.

Can an agent call LetsFG and Skyscanner Travel APIs without installing anything?

Yes. LetsFG has a hosted endpoint at https://letsfg.co/developers/api/v1 and Skyscanner Travel APIs at https://partners.api.skyscanner.net.

Are LetsFG and Skyscanner Travel APIs open source?

LetsFG is open source (MIT). No open-source release is listed for Skyscanner Travel APIs.

Other comparisons with LetsFG or Skyscanner Travel APIs

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