ChargeLK{
"openapi": "3.0.3",
"info": {
"title": "ChargeLK charging station API",
"version": "1.0.0",
"description": "Real-time availability, location, facilities and prices of ChargeLK EV chargers in Sri Lanka, for navigation and fleet software. Read only. No customer data. ChargeLK is operated by CMS Techno Solutions."
},
"servers": [
{
"url": "https://chargelk.com/api/v1"
}
],
"security": [
{
"ApiKey": []
}
],
"tags": [
{
"name": "Stations",
"description": "A site with one or more chargers."
},
{
"name": "Chargers",
"description": "One charger on its own."
}
],
"paths": {
"/stations": {
"get": {
"summary": "List stations with their chargers",
"description": "A station is a site with one or more chargers. Give \"near\" to get the closest first, each with distance_km.",
"parameters": [
{
"name": "near",
"in": "query",
"description": "A point as \"lat,lng\", for example 6.9271,79.8612. Returns stations within radius_km, nearest first.",
"schema": {
"type": "string"
}
},
{
"name": "radius_km",
"in": "query",
"description": "Used with near. Default 25.",
"schema": {
"type": "number",
"minimum": 0.1,
"maximum": 500
}
},
{
"name": "city",
"in": "query",
"description": "Only stations in this city, spelled as in the data.",
"schema": {
"type": "string"
}
},
{
"name": "status",
"in": "query",
"description": "Only chargers with this status. Stations with no matching charger are left out.",
"schema": {
"type": "string",
"enum": [
"available",
"occupied",
"offline",
"faulted",
"maintenance"
]
}
},
{
"name": "connector",
"in": "query",
"description": "Only chargers with this connector.",
"schema": {
"type": "string",
"enum": [
"CCS2",
"CHAdeMO",
"GBT",
"Type2"
]
}
},
{
"name": "page",
"in": "query",
"description": "Which page of results. 1 is the first.",
"schema": {
"type": "integer",
"minimum": 1,
"default": 1
}
},
{
"name": "per_page",
"in": "query",
"description": "How many stations on a page, up to 200.",
"schema": {
"type": "integer",
"minimum": 1,
"maximum": 200,
"default": 100
}
}
],
"tags": [
"Stations"
],
"responses": {
"200": {
"description": "Stations and their chargers.",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/StationList"
},
"example": {
"data": [
{
"id": 12,
"name": "Galle Face Car Park",
"address": "1 Galle Road, Colombo 3",
"city": "Colombo",
"location": {
"lat": 6.9271,
"lng": 79.8438
},
"opening_hours": "Daily 06:00 to 22:00",
"amenities": [
"seating",
"washrooms",
"wifi"
],
"distance_km": 1.4,
"chargers": [
{
"id": "CP-001",
"status": "available",
"status_checked_at": "2026-11-02T09:14:52+00:00",
"connector": {
"type": "CCS2",
"current": "DC",
"count": 1
},
"power_kw": 30,
"price": {
"currency": "LKR",
"per_kwh": {
"lkr": 100,
"cents": 10000
},
"idle_fee_per_minute": {
"lkr": 0,
"cents": 0
},
"tax_included": true
},
"planned_outage": null
}
]
}
],
"meta": {
"total": 1,
"page": 1,
"per_page": 100,
"generated_at": "2026-11-02T09:15:01+00:00"
}
}
}
}
},
"422": {
"description": "A parameter is not valid."
},
"401": {
"description": "The API key is missing, wrong, expired or revoked.",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Error"
}
}
}
},
"429": {
"description": "This key has used up its requests for the minute.",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Error"
}
}
}
}
}
}
},
"/stations/{id}": {
"get": {
"summary": "One station",
"tags": [
"Stations"
],
"parameters": [
{
"name": "id",
"in": "path",
"required": true,
"example": 12,
"schema": {
"type": "integer"
}
}
],
"responses": {
"200": {
"description": "The station and its chargers.",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/StationOne"
},
"example": {
"data": {
"id": 12,
"name": "Galle Face Car Park",
"address": "1 Galle Road, Colombo 3",
"city": "Colombo",
"location": {
"lat": 6.9271,
"lng": 79.8438
},
"opening_hours": "Daily 06:00 to 22:00",
"amenities": [
"seating",
"washrooms",
"wifi"
],
"chargers": [
{
"id": "CP-001",
"status": "available",
"status_checked_at": "2026-11-02T09:14:52+00:00",
"connector": {
"type": "CCS2",
"current": "DC",
"count": 1
},
"power_kw": 30,
"price": {
"currency": "LKR",
"per_kwh": {
"lkr": 100,
"cents": 10000
},
"idle_fee_per_minute": {
"lkr": 0,
"cents": 0
},
"tax_included": true
},
"planned_outage": null
}
]
},
"meta": {
"generated_at": "2026-11-02T09:15:01+00:00"
}
}
}
}
},
"404": {
"description": "No such station."
},
"401": {
"description": "The API key is missing, wrong, expired or revoked.",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Error"
}
}
}
},
"429": {
"description": "This key has used up its requests for the minute.",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Error"
}
}
}
}
}
}
},
"/chargers/{id}": {
"get": {
"summary": "One charger by its id",
"tags": [
"Chargers"
],
"parameters": [
{
"name": "id",
"in": "path",
"required": true,
"description": "The charger id, for example CP-001.",
"example": "CP-001",
"schema": {
"type": "string"
}
}
],
"responses": {
"200": {
"description": "The charger, with station_id.",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/ChargerOne"
},
"example": {
"data": {
"id": "CP-001",
"status": "available",
"status_checked_at": "2026-11-02T09:14:52+00:00",
"connector": {
"type": "CCS2",
"current": "DC",
"count": 1
},
"power_kw": 30,
"price": {
"currency": "LKR",
"per_kwh": {
"lkr": 100,
"cents": 10000
},
"idle_fee_per_minute": {
"lkr": 0,
"cents": 0
},
"tax_included": true
},
"planned_outage": null,
"station_id": 12
},
"meta": {
"generated_at": "2026-11-02T09:15:01+00:00"
}
}
}
}
},
"404": {
"description": "No such charger."
},
"401": {
"description": "The API key is missing, wrong, expired or revoked.",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Error"
}
}
}
},
"429": {
"description": "This key has used up its requests for the minute.",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/Error"
}
}
}
}
}
}
}
},
"components": {
"securitySchemes": {
"ApiKey": {
"type": "http",
"scheme": "bearer",
"description": "Your key, as \"Authorization: Bearer clk_...\". \"X-Api-Key: clk_...\" works too."
}
},
"schemas": {
"Money": {
"type": "object",
"properties": {
"lkr": {
"type": "number",
"example": 100,
"description": "Rupees, with decimals."
},
"cents": {
"type": "integer",
"example": 10000,
"description": "Whole cents, for exact arithmetic."
}
}
},
"Charger": {
"type": "object",
"properties": {
"id": {
"type": "string",
"example": "CP-001"
},
"status": {
"type": "string",
"enum": [
"available",
"occupied",
"offline",
"faulted",
"maintenance"
],
"description": "A live reading, not a forecast."
},
"status_checked_at": {
"type": "string",
"format": "date-time",
"nullable": true,
"description": "When the charger last spoke to ChargeLK."
},
"connector": {
"type": "object",
"properties": {
"type": {
"type": "string",
"enum": [
"CCS2",
"CHAdeMO",
"GBT",
"Type2"
]
},
"current": {
"type": "string",
"enum": [
"AC",
"DC"
]
},
"count": {
"type": "integer"
}
}
},
"power_kw": {
"type": "integer",
"description": "The most the charger can deliver."
},
"price": {
"type": "object",
"properties": {
"currency": {
"type": "string",
"example": "LKR"
},
"per_kwh": {
"$ref": "#/components/schemas/Money"
},
"idle_fee_per_minute": {
"$ref": "#/components/schemas/Money"
},
"tax_included": {
"type": "boolean"
}
}
},
"planned_outage": {
"type": "object",
"nullable": true,
"properties": {
"starts_at": {
"type": "string",
"format": "date-time"
},
"ends_at": {
"type": "string",
"format": "date-time"
},
"active": {
"type": "boolean"
}
}
}
}
},
"Station": {
"type": "object",
"properties": {
"id": {
"type": "integer",
"example": 12
},
"name": {
"type": "string"
},
"address": {
"type": "string",
"nullable": true
},
"city": {
"type": "string",
"nullable": true
},
"location": {
"type": "object",
"properties": {
"lat": {
"type": "number"
},
"lng": {
"type": "number"
}
}
},
"opening_hours": {
"type": "string",
"nullable": true
},
"amenities": {
"type": "array",
"items": {
"type": "string",
"enum": [
"seating",
"washrooms",
"food",
"wifi",
"shelter",
"security",
"accessible"
]
}
},
"distance_km": {
"type": "number",
"description": "Only when \"near\" was given."
},
"chargers": {
"type": "array",
"items": {
"$ref": "#/components/schemas/Charger"
}
}
}
},
"StationList": {
"type": "object",
"properties": {
"data": {
"type": "array",
"items": {
"$ref": "#/components/schemas/Station"
}
},
"meta": {
"type": "object",
"properties": {
"total": {
"type": "integer"
},
"page": {
"type": "integer"
},
"per_page": {
"type": "integer"
},
"generated_at": {
"type": "string",
"format": "date-time"
}
}
}
}
},
"StationOne": {
"type": "object",
"properties": {
"data": {
"$ref": "#/components/schemas/Station"
},
"meta": {
"type": "object",
"properties": {
"generated_at": {
"type": "string",
"format": "date-time"
}
}
}
}
},
"ChargerOne": {
"type": "object",
"properties": {
"data": {
"allOf": [
{
"$ref": "#/components/schemas/Charger"
},
{
"type": "object",
"properties": {
"station_id": {
"type": "integer"
}
}
}
]
},
"meta": {
"type": "object",
"properties": {
"generated_at": {
"type": "string",
"format": "date-time"
}
}
}
}
},
"Error": {
"type": "object",
"properties": {
"message": {
"type": "string"
},
"code": {
"type": "string",
"example": "invalid_api_key"
}
}
}
}
}
}Use it
- Postman: Import, then paste the address
https://www.chargelk.com/api/v1/openapi.json, or upload the downloaded file. - Insomnia: Create, Import, From URL, with the same address.
- Swagger UI or Swagger Editor: paste the file, or open it from the address.
- A client in your language:
npx @openapitools/openapi-generator-cli generate -i chargelk-api-v1.openapi.json -g typescript-fetch -o client(other generators: python, php, java, go).
Every request needs your key, sent as Authorization: Bearer clk_.... The file itself is public and needs no key.