Real-Time Rail Predictions

wmata · Company

Company No Auth Free & Open transport

Real-time rail prediction methods.

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET XML - Next Trains

Description Returns next train arrival information for one or more stations. Will return an empty set of results when no predictions are available. Use All for the StationCodes parameter to return predictions for all stations.</p

https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/GetPrediction/{StationCodes}

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/GetPrediction/{StationCodes}"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/GetPrediction/{StationCodes}",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/GetPrediction/{StationCodes}';

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	targetURL := "https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/GetPrediction/{StationCodes}"
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/GetPrediction/{StationCodes}")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/GetPrediction/{StationCodes}";
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET JSON - Next Trains

https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/json/GetPrediction/{StationCodes}

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/json/GetPrediction/{StationCodes}"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/json/GetPrediction/{StationCodes}",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/json/GetPrediction/{StationCodes}';

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	targetURL := "https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/json/GetPrediction/{StationCodes}"
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/json/GetPrediction/{StationCodes}")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/wmata.com/rail-realtime/1.0/json/GetPrediction/{StationCodes}";
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

Postman Setup Guide

Get Postman ↗

See official documentation for authentication and setup.

What can you build with Real-Time Rail Predictions?

Real-Time Rail Predictions is a Company API. Developers commonly use company APIs for:

enriching CRM records with company firmographics
building lead-generation and prospecting tools
verifying business identity and registration details
monitoring competitors and market intelligence
powering B2B data enrichment pipelines

No authentication required. This API is open — no signup or key needed. Ideal for quick prototypes and public-facing features. Real-Time Rail Predictions is free to use, making it a low-risk choice to experiment with.

New to APIs? Read our beginner's guide

Open documentation ↗