Add OpenTripPlanner APIs

README.md

@@ -1654,7 +1654,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Compare Flight Prices](https://rapidapi.com/obryan-software-obryan-software-default/api/compare-flight-prices/) | API for comparing flight prices across platforms | `apiKey` | Yes | Unknown |
 | [CTS](https://api.cts-strasbourg.eu/) | CTS Realtime API | `apiKey` | Yes | Yes |
 | [Grab](https://developer.grab.com/docs/) | Track deliveries, ride fares, payments and loyalty points | `OAuth` | Yes | Unknown |
-| [GraphHopper](https://docs.graphhopper.com/) | A-to-B routing with turn-by-turn instructions | `apiKey` | Yes | Unknown |
+| [GraphHopper](https://docs.graphhopper.com/) | A-to-B routing with turn-by-turn instructions | `No` | Yes | Unknown |
 | [Icelandic APIs](http://docs.apis.is/) | Open APIs that deliver services in or regarding Iceland | No | Yes | Unknown |
 | [Impala Hotel Bookings](https://docs.impala.travel/docs/booking-api/) | Hotel content, rates and room bookings | `apiKey` | Yes | No |
 | [Izi](http://api-docs.izi.travel/) | Audio guide for travellers | `apiKey` | Yes | Unknown |
@@ -1663,6 +1663,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Navitia](https://doc.navitia.io/) | The open API for building cool stuff with transport data | `apiKey` | Yes | Unknown |
 | [Open Charge Map](https://openchargemap.org/site/develop/api) | Global public registry of electric vehicle charging locations | `apiKey` | Yes | Yes |
 | [OpenSky Network](https://opensky-network.org/apidoc/index.html) | Free real-time ADS-B aviation data | No | Yes | Unknown |
+| [Open Trip Planner](http://dev.opentripplanner.org/apidoc/1.0.0/index.html) | Multimodal trip planner using RTGTFS-GTFS-OSM files  | No | Yes | Unknown |
 | [Railway Transport for France](https://www.digital.sncf.com/startup/api) | SNCF public API | `apiKey` | Yes | Unknown |
 | [REFUGE Restrooms](https://www.refugerestrooms.org/api/docs/#!/restrooms) | Provides safe restroom access for transgender, intersex and gender nonconforming individuals | No | Yes | Unknown |
 | [Sabre for Developers](https://developer.sabre.com/guides/travel-agency/quickstart/getting-started-in-travel) | Travel Search - Limited usage | `apiKey` | Yes | Unknown |