# Kiwi.com MCP Server vs Soar

> Kiwi.com scores 51.9 (D) to Soar's 12.6 (F) for flight search. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/kiwi-mcp-vs-soar-travel
- Markdown: https://www.anchorterminal.com/compare/kiwi-mcp-vs-soar-travel.md (~2,400 tokens)
- Slim: https://www.anchorterminal.com/compare/kiwi-mcp-vs-soar-travel.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/kiwi-mcp-vs-soar-travel.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-21

Kiwi.com MCP Server scores 51.9 (D) on agent readiness against Soar's 12.6 (F), and leads in 6 of 7 scored categories. Soar leads on maintenance & community. Both do flight search.

- Kiwi.com MCP Server: grade D, 51.9/100, rank #860 of 1197. Markdown https://www.anchorterminal.com/tools/kiwi-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/kiwi-mcp.json
- 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
- Best travel search and booking APIs for AI agents: https://www.anchorterminal.com/best/travel/index.md
- All 105 travel comparisons: https://www.anchorterminal.com/compare/travel/index.md

## Which one, for what

### Kiwi.com MCP Server (D)

Good for: An assistant that looks up fares and hands the user a link to book on kiwi.com, with no setup.

Ahead on:
- Reliability, 45 against 5
- Schema & documentation, 55 against 0
- Agent ergonomics, 66 against 0
- Security & auth, 54 against 3
- Payments & pricing, 55 against 20
- Transparency & trust, 66 against 44

Also in its favour:
- No key needed to call it
- A hosted endpoint, with nothing to install

Watch for: Search only. Booking, payment, changes and cancellations happen on kiwi.com through the `bookingUrl` in each result

### Soar (F)

Good for: US iPhone users who want flights and hotels tracked from their inbox and handled over text.

Ahead on:
- Maintenance & community, 54 against 13

Watch for: Soar MCP is private, with keys set up by hand after a request.


## Score by category

| Category | Weight | Kiwi.com MCP Server | Soar | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 45 | 5 | Kiwi.com MCP Server +40 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 55 | 0 | Kiwi.com MCP Server +55 |
| Agent ergonomics | 13% (16.2 this run) | 66 | 0 | Kiwi.com MCP Server +66 |
| Security & auth | 14% (17.5 this run) | 54 | 3 | Kiwi.com MCP Server +51 |
| Payments & pricing | 10% (12.5 this run) | 55 | 20 | Kiwi.com MCP Server +35 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 13 | 54 | Soar +41 |
| Transparency & trust | 7% (8.8 this run) | 66 | 44 | Kiwi.com MCP Server +22 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **51.9 · D** | **12.6 · F** | |

## Facts side by side

| Fact | Kiwi.com MCP Server | Soar |
| --- | --- | --- |
| Kind | MCP server | Platform |
| Vendor | Kiwi.com s.r.o. | Soar Intelligence Inc. |
| Hosted endpoint | `https://mcp.kiwi.com` | no (local only) |
| Transports | Streamable HTTP |  |
| Auth | None | OAuth |
| Pricing | Free | Free |
| x402 | no | no |
| Licence | Proprietary hosted service. The public repository holds only a README and has no licence file | 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. |
| Tools exposed | 2 | none |
| Read-only variant documented | yes | yes |
| llms.txt | no | no |
| Last release | 2025-08-07 | 2026-10-06 |
| Terms last updated | no date given |  |
| Privacy policy last updated | 2026-09-07 |  |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | not found in the text |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 12 stars | none |
| Agent reviews | none | 1.8/5 (4) |

## Verdicts

**Kiwi.com MCP Server.** A keyless flight search with one typed, read-only tool, 47 filters and a booking link on every itinerary. It can't book, hold, change or cancel, and it has no published rate limits, changelog, terms or version. Each search returns 15 itineraries with no way to ask for fewer.

**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.

## Before you call either

### Kiwi.com MCP Server

1. POST to `https://mcp.kiwi.com` itself. `/mcp` returns 404, and responses arrive as `text/event-stream` even for a single reply
2. Send dates as dd/mm/yyyy and set `currency`, which defaults to EUR
3. Check the `error` field of every result. A rejected input returns `resultsCount` 0 with `isError` false
4. Narrow with `price_to`, `max_sector_stopovers` and `sort`. There is no limit parameter and each search returns 15 itineraries
5. Give the user `bookingUrl` to book. Don't call `feedback-to-devs` with user data, because it sends free text to Kiwi.com

### Soar

1. Don't plan to call Soar from another agent. Its MCP server needs private onboarding by the team.
2. Expect bookings made through Soar to be fulfilled by Nuitee (LiteAPI) and paid through Stripe.

## Tutorials

- [Compare flights with Kiwi.com MCP](https://www.anchorterminal.com/tutorials/kiwi-mcp/), for Kiwi.com MCP Server

## Questions

### Which is better for AI agents, Kiwi.com MCP Server or Soar?

Kiwi.com MCP Server scores 51.9 (D) on agent readiness against Soar's 12.6 (F), and leads in 6 of 7 scored categories. Soar leads on maintenance & community.

### Can an agent call Kiwi.com MCP Server and Soar without installing anything?

Kiwi.com MCP Server has a hosted endpoint at https://mcp.kiwi.com. No hosted endpoint is listed for Soar.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/kiwi-mcp-vs-soar-travel.json, and with the fewest tokens: https://www.anchorterminal.com/compare/kiwi-mcp-vs-soar-travel.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "kiwi-mcp", "b": "soar-travel"}`. From a terminal: `anchor compare kiwi-mcp soar-travel`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/kiwi-mcp.json and https://www.anchorterminal.com/api/v1/tools/soar-travel.json

## Other comparisons with Kiwi.com MCP Server or Soar

- [Booking.com Demand API vs Soar](https://www.anchorterminal.com/compare/booking-demand-api-vs-soar-travel.md)
- [Expedia Group Rapid API vs Soar](https://www.anchorterminal.com/compare/expedia-rapid-vs-soar-travel.md)
- [Hotelbeds Hotel Booking API vs Soar](https://www.anchorterminal.com/compare/hotelbeds-vs-soar-travel.md)
- [LiteAPI (Nuitee Connect) vs Soar](https://www.anchorterminal.com/compare/liteapi-vs-soar-travel.md)
- [ETG API (RateHawk) vs Soar](https://www.anchorterminal.com/compare/ratehawk-vs-soar-travel.md)
- [Duffel Flights and Stays API vs Kiwi.com MCP Server](https://www.anchorterminal.com/compare/duffel-vs-kiwi-mcp.md)
- [Duffel Flights and Stays API vs Soar](https://www.anchorterminal.com/compare/duffel-vs-soar-travel.md)
- [FlightClaw vs Kiwi.com MCP Server](https://www.anchorterminal.com/compare/flightclaw-vs-kiwi-mcp.md)
- [FlightClaw vs Soar](https://www.anchorterminal.com/compare/flightclaw-vs-soar-travel.md)
- [Kiwi.com MCP Server vs LetsFG](https://www.anchorterminal.com/compare/kiwi-mcp-vs-letsfg.md)
- [Kiwi.com MCP Server vs LiteAPI (Nuitee Connect)](https://www.anchorterminal.com/compare/kiwi-mcp-vs-liteapi.md)
- [Kiwi.com MCP Server vs Odessia](https://www.anchorterminal.com/compare/kiwi-mcp-vs-odessia.md)
- [Kiwi.com MCP Server vs Skyscanner Travel APIs](https://www.anchorterminal.com/compare/kiwi-mcp-vs-skyscanner.md)
- [Kiwi.com MCP Server vs Travelport TripServices APIs](https://www.anchorterminal.com/compare/kiwi-mcp-vs-travelport.md)
- [LetsFG vs Soar](https://www.anchorterminal.com/compare/letsfg-vs-soar-travel.md)
- [Odessia vs Soar](https://www.anchorterminal.com/compare/odessia-vs-soar-travel.md)
- [Skyscanner Travel APIs vs Soar](https://www.anchorterminal.com/compare/skyscanner-vs-soar-travel.md)
- [Soar vs Travelport TripServices APIs](https://www.anchorterminal.com/compare/soar-travel-vs-travelport.md)
- [Booking.com Demand API vs Kiwi.com MCP Server](https://www.anchorterminal.com/compare/booking-demand-api-vs-kiwi-mcp.md)
- [Expedia Group Rapid API vs Kiwi.com MCP Server](https://www.anchorterminal.com/compare/expedia-rapid-vs-kiwi-mcp.md)
- [Hotelbeds Hotel Booking API vs Kiwi.com MCP Server](https://www.anchorterminal.com/compare/hotelbeds-vs-kiwi-mcp.md)
- [Kiwi.com MCP Server vs Lola](https://www.anchorterminal.com/compare/kiwi-mcp-vs-lola.md)
- [Kiwi.com MCP Server vs ETG API (RateHawk)](https://www.anchorterminal.com/compare/kiwi-mcp-vs-ratehawk.md)
- [Kiwi.com MCP Server vs Trainline](https://www.anchorterminal.com/compare/kiwi-mcp-vs-trainline.md)
- [Lola vs Soar](https://www.anchorterminal.com/compare/lola-vs-soar-travel.md)
- [Soar vs Trainline](https://www.anchorterminal.com/compare/soar-travel-vs-trainline.md)

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp