Create RFC 5545 ICS calendars for appointments and itineraries, with all-day eve
Create RFC 5545 ICS calendars for appointments and itineraries, with all-day events, locations, descriptions and bounded recurrence. Timed events and recurrences are emitted in UTC; all-day end dates are exclusive.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
1382 msmedian answer time
$0.02listed price per call
$0.02price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://calendar-api-production-33a1.up.railway.app/v1/calendars/build
| Category | Everything else |
|---|---|
| Provider host | calendar-api-production-33a1.up.railway.app |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.02 | 1382 ms |
Example input (from the provider)
{
"body": {
"events": [
{
"description": "Review the release checklist and support handoff.",
"end": "2026-10-12T10:45:00-05:00",
"location": "Conference room A",
"start": "2026-10-12T10:00:00-05:00",
"title": "Launch review"
},
{
"all_day": true,
"end": "2026-10-14",
"start": "2026-10-13",
"title": "Planning day"
}
],
"name": "Project milestones"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"events": {
"items": {
"additionalProperties": false,
"properties": {
"all_day": {
"default": false,
"type": "boolean"
},
"description": {
"default": "",
"maxLength": 3000,
"type": "string"
},
"end": {
"anyOf": [
{
"format": "date-time",
"pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
"type": "string"
},
{
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
}
]
},
"location": {
"default": "",
"maxLength": 300,
"type": "string"
},
"recurrence": {
"additionalProperties": false,
"properties": {
"count": {
"maximum": 365,
"minimum": 1,
"type": "integer"
},
"frequency": {
"enum": [
"DAILY",
"WEEKLY",
"MONTHLY",
"YEARLY"
],
"type": "string"
},
"interval": {
"default": 1,
"maximum": 30,
"minimum": 1,
"type": "integer"
}
},
"required": [
"frequency",
"count"
],
"type": "object"
},
"start": {
"anyOf": [
{
"format": "date-time",
"pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
"type": "string"
},
{
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"type": "string"
}
]
},
"title": {
"maxLength": 200,
"minLength": 1,
"type": "string"
},
"url": {
"format": "uri",
"type": "string"
}
},
"required": [
"title",
"start",
"end"
],
"type": "object"
},
"maxItems": 100,
"minItems": 1,
"type": "array"
},
"name": {
"maxLength": 200,
"minLength": 1,
"type": "string"
}
},
"required": [
"name",
"events"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}