Hackage Haskell package lookup
Hackage Haskell package lookup - latest and preferred versions, synopsis, licence, category, maintainer, GHC tested-with and core build dependencies
Answers HTTP 404 without x402 payment termsour last check, 2026-10-18
0 of 1checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/registry/hackage/:package
| Category | Company and compliance |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | no x402 terms | 404 | 432 ms |
Example input (from the provider)
{
"method": "GET",
"pathParams": {
"package": "aeson"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
],
"type": "string"
},
"pathParams": {
"properties": {
"package": {
"description": "Hackage package name in the path, e.g. aeson, lens, text",
"type": "string"
}
},
"required": [
"package"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"pathParams"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"author": {
"description": "Author name",
"type": [
"string",
"null"
]
},
"bug_reports": {
"description": "Bug reports",
"type": [
"string",
"null"
]
},
"category": {
"description": "Category",
"type": [
"string",
"null"
]
},
"deprecated_versions": {
"description": "Deprecated versions",
"type": [
"number",
"null"
]
},
"first_build_depends": {
"description": "First build depends",
"type": [
"array",
"null"
]
},
"hackage_url": {
"description": "Hackage URL",
"type": [
"string",
"null"
]
},
"homepage": {
"description": "Project homepage URL",
"type": [
"string",
"null"
]
},
"latest_version": {
"description": "Latest version",
"type": [
"string",
"null"
]
},
"license": {
"description": "License identifier",
"type": [
"string",
"null"
]
},
"maintainer": {
"type": [
"string",
"null"
]
},
"name": {
"description": "Name",
"type": "string"
},
"preferred_versions": {
"description": "Preferred versions",
"type": "array"
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"synopsis": {
"type": [
"string",
"null"
]
},
"tested_with": {
"description": "Tested with",
"type": [
"string",
"null"
]
},
"total_normal_versions": {
"description": "Total normal versions",
"type": "number"
}
},
"required": [
"name"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}