Erlang B and C
Erlang B and C: trunks for a blocking target, or agents for a service level such as 80 percent answered in 20 seconds.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
1104 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
GET https://data-calc.x402tookit.com/erlang-staffing
| Category | Everything else |
|---|---|
| Provider host | data-calc.x402tookit.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.02 | 1104 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"mode": "b",
"targetBlocking": 0.01,
"trafficErlangs": 10
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"answerSeconds": {
"description": "Mode c: the answer-time threshold in seconds (default 20)",
"type": "number"
},
"handlingSeconds": {
"description": "Mode c: average handling time in seconds (default 180)",
"type": "number"
},
"mode": {
"description": "c (default): agents for a service level, queueing allowed. b: trunks for a blocking target, no queue",
"type": "string"
},
"serviceLevel": {
"description": "Mode c: fraction answered within answerSeconds, e.g. 0.8 (default 0.8)",
"type": "number"
},
"targetBlocking": {
"description": "Mode b: acceptable blocking probability, e.g. 0.01 (default 0.01)",
"type": "number"
},
"trafficErlangs": {
"description": "Offered load A in erlangs = arrival rate x average handling time (e.g. 120 calls/hour x 3 min = 6 E)",
"type": "number"
}
},
"required": [
"trafficErlangs"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"blockingAtSolution": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"mode": {
"type": [
"null",
"string"
]
},
"neighbours": {
"items": {
"properties": {
"blocking": {
"type": [
"null",
"number"
]
},
"carriedErlangs": {
"type": [
"null",
"number"
]
},
"occupancy": {
"type": [
"null",
"number"
]
},
"trunks": {
"type": [
"null",
"number"
]
}
},
"type": "object"
},
"type": [
"array",
"null"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"targetBlocking": {
"type": [
"null",
"number"
]
},
"trafficErlangs": {
"type": [
"null",
"number"
]
},
"trunksNeeded": {
"type": [
"null",
"number"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}