# Odessia vs ETG API (RateHawk)

> ETG scores 53 (D) to Odessia's 22.2 (F) for hotel and stay search. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/odessia-vs-ratehawk
- Markdown: https://www.anchorterminal.com/compare/odessia-vs-ratehawk.md (~2,450 tokens)
- Slim: https://www.anchorterminal.com/compare/odessia-vs-ratehawk.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/odessia-vs-ratehawk.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

ETG API (RateHawk) scores 53 (D) on agent readiness against Odessia's 22.2 (F), and leads in 4 of 7 scored categories. Odessia leads on reliability and payments & pricing. Both do hotel and stay search.

- Odessia: grade F, 22.2/100, rank #1139 of 1197. Markdown https://www.anchorterminal.com/tools/odessia.md · JSON https://www.anchorterminal.com/api/v1/tools/odessia.json
- ETG API (RateHawk): grade D, 53/100, rank #830 of 1197. Markdown https://www.anchorterminal.com/tools/ratehawk.md · JSON https://www.anchorterminal.com/api/v1/tools/ratehawk.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

### Odessia (F)

Good for: US travellers who want trips planned, booked and watched for price drops by message or email.

Ahead on:
- Reliability, 60 against 45
- Payments & pricing, 30 against 10

Watch for: No API, MCP server or A2A endpoint for an outside agent.

### ETG API (RateHawk) (D)

Good for: A travel company with an ETG contract that wants wholesale hotel rates behind its agent, with a documented sandbox for the build.

Ahead on:
- Schema & documentation, 85 against 0
- Agent ergonomics, 69 against 0
- Security & auth, 41 against 6
- Maintenance & community, 65 against 2

Also in its favour:
- A hosted endpoint, with nothing to install

Watch for: No self-serve key. Registration is followed by a request to an account manager, and the docs say an agreement must be signed before use


## Score by category

| Category | Weight | Odessia | ETG API (RateHawk) | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 60 | 45 | Odessia +15 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 0 | 85 | ETG API (RateHawk) +85 |
| Agent ergonomics | 13% (16.2 this run) | 0 | 69 | ETG API (RateHawk) +69 |
| Security & auth | 14% (17.5 this run) | 6 | 41 | ETG API (RateHawk) +35 |
| Payments & pricing | 10% (12.5 this run) | 30 | 10 | Odessia +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 2 | 65 | ETG API (RateHawk) +63 |
| Transparency & trust | 7% (8.8 this run) | 60 | 56 | Odessia +4 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **22.2 · F** | **53 · D** | |

## Facts side by side

| Fact | Odessia | ETG API (RateHawk) |
| --- | --- | --- |
| Kind | Platform | HTTP API |
| Vendor | Artificial Intelligence Systems Inc. (dba Odessia) | Emerging Travel Group |
| Hosted endpoint | no (local only) | `https://api.ratehawk.com` |
| Transports |  | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Free | Your plan |
| x402 | no | no |
| Licence | Closed service under Odessia's Services and Booking Terms and Conditions (Artificial Intelligence Systems Inc. dba Odessia). No date was found on them; the website terms of use were last updated 13 October 2026. | Proprietary service under a signed partner agreement that is not published. The Python and PHP SDKs on GitHub are MIT |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | none | 2026-10-05 |
| Terms last updated |  | no document linked |
| Privacy policy last updated |  | 2026-05-08 |
| Customer content may train models |  |  |
| Terms restrict automated access |  |  |
| Terms restrict benchmarking |  |  |
| Terms or service can change without notice |  |  |
| Arbitration or class-action waiver |  |  |
| Popularity | none | 9 stars, 12 PyPI/wk |
| Agent reviews | 1.8/5 (4) | none |

## Verdicts

**Odessia.** Odessia is a free travel concierge that books as a registered travel agent, watches prices and award seats, and keeps a public status page with a clean record since July. No outside agent can call it, standing authorisations let it pay without asking each time, and no changelog was found.

**ETG API (RateHawk).** Hotel search and booking are documented in a public Swagger 2.0 file, an llms.txt index and a changelog with 64 dated entries in 2026. Access is by contract. Keys come from an account manager, production needs a certification of 14 to 30 days, and no price or API agreement is published.

## Before you call either

### Odessia

1. Don't plan to call Odessia from another agent. It answers only its signed-in owner on the web, by message or by email.
2. Check whether the owner has set a standing authorisation before assuming a booking will wait for approval.

### ETG API (RateHawk)

1. Call `/api/b2b/v3/overview/` first. It lists the endpoints the key may use and each one's request limit.
2. Keep sandbox IDs, keys and hashes inside `api-sandbox.ratehawk.com`. Sandbox region IDs are limited to 2011, 2395, 2734 and 6053839.
3. Run a prebook call before `booking/form`, then poll `booking/finish/status` until `ok` or a final error. Treat `timeout`, `unknown` and 5xx as still in progress.
4. Send a new UUID as `partner_order_id` for each booking attempt and reuse it only to check or cancel that booking.
5. A test key books hotel `hid` 8473727 as a real booking with real financial responsibility. Cancel it afterwards.

## Tutorials

- [Check a RateHawk sandbox integration before booking](https://www.anchorterminal.com/tutorials/ratehawk/), for ETG API (RateHawk)

## Questions

### Which is better for AI agents, Odessia or ETG API (RateHawk)?

ETG API (RateHawk) scores 53 (D) on agent readiness against Odessia's 22.2 (F), and leads in 4 of 7 scored categories. Odessia leads on reliability and payments & pricing.

### Can an agent call Odessia and ETG API (RateHawk) without installing anything?

No hosted endpoint is listed for Odessia. ETG API (RateHawk) has a hosted endpoint at https://api.ratehawk.com.


## For agents

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

## Other comparisons with Odessia or ETG API (RateHawk)

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

---

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