Resolve work-workspace requirements

curl --request POST \
  --url https://api.checkfu.com/v1/work-environments/resolve \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'checkfu-version: <checkfu-version>' \
  --data '
{
  "input_type": "preset",
  "overrides": {
    "execution": [],
    "placement": []
  }
}
'

import requests

url = "https://api.checkfu.com/v1/work-environments/resolve"

payload = {
    "input_type": "preset",
    "overrides": {
        "execution": [],
        "placement": []
    }
}
headers = {
    "checkfu-version": "<checkfu-version>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'checkfu-version': '<checkfu-version>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({input_type: 'preset', overrides: {execution: [], placement: []}})
};

fetch('https://api.checkfu.com/v1/work-environments/resolve', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.checkfu.com/v1/work-environments/resolve",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'input_type' => 'preset',
    'overrides' => [
        'execution' => [
                
        ],
        'placement' => [
                
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "checkfu-version: <checkfu-version>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.checkfu.com/v1/work-environments/resolve"

	payload := strings.NewReader("{\n  \"input_type\": \"preset\",\n  \"overrides\": {\n    \"execution\": [],\n    \"placement\": []\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("checkfu-version", "<checkfu-version>")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.checkfu.com/v1/work-environments/resolve")
  .header("checkfu-version", "<checkfu-version>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"input_type\": \"preset\",\n  \"overrides\": {\n    \"execution\": [],\n    \"placement\": []\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.checkfu.com/v1/work-environments/resolve")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["checkfu-version"] = '<checkfu-version>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"input_type\": \"preset\",\n  \"overrides\": {\n    \"execution\": [],\n    \"placement\": []\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "disposition": "resolved",
  "resolver_version": "work-environment-resolver/v1",
  "preset_catalog_version": 1,
  "normalized_requirements": {
    "schema_version": 1,
    "execution": [
      "shell"
    ],
    "lifetime": "run",
    "presentation": "none",
    "human_access": "none",
    "placement": [
      "managed"
    ],
    "isolation": {
      "filesystem": "attachment",
      "browser_profile": "attachment",
      "process_namespace": "attachment",
      "credentials": "grant_bound",
      "clipboard": "disabled",
      "downloads": "attachment"
    },
    "recovery": "none",
    "retention": {
      "mode": "ephemeral_zdr",
      "maximum_seconds": 157680000,
      "export": "forbidden"
    },
    "network": {
      "mode": "none",
      "policy": {
        "action_policy_id": "<string>",
        "action_policy_version": 1
      }
    },
    "locality": {
      "regions": [
        "<string>"
      ],
      "residency_required": true
    },
    "resources": {
      "minimum_vcpu": 512,
      "minimum_memory_mib": 2097152,
      "minimum_disk_mib": 536870912,
      "gpu": "forbidden"
    }
  },
  "resolved_kind": "none",
  "requires_screen": true,
  "forced_by": [
    "<string>"
  ],
  "selected_provider": {
    "provider": "<string>",
    "tuple_digest": "<string>",
    "evidence_grade": "double"
  },
  "considered": [
    {
      "provider": "<string>",
      "tuple_digest": "<string>",
      "qualified": true,
      "reasons": [
        {
          "code": "live_qualification_missing",
          "requirement_path": "<string>",
          "expected": "<string>",
          "observed": "<string>",
          "evidence_reference": "<string>"
        }
      ]
    }
  ],
  "warnings": [
    {
      "code": "shared_profile_credentials",
      "message": "<string>",
      "acknowledgement_required": true
    }
  ],
  "estimated_usage_dimensions": [
    "compute_seconds"
  ],
  "refusal": {
    "code": "human_access_requires_presentation",
    "requirement_path": "<string>",
    "message": "<string>"
  },
  "portability": "not_applicable",
  "candidate_set_digest": "<string>",
  "resolution_digest": "<string>"
}

{
  "error": {
    "type": "validation.malformed",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-malformed"
  }
}

{
  "error": {
    "type": "auth.invalid_key",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-invalid-key"
  }
}

{
  "error": {
    "type": "auth.disabled_tenancy",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-disabled-tenancy"
  }
}

{
  "error": {
    "type": "budget.exceeded",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#budget-exceeded"
  }
}

{
  "error": {
    "type": "runtime.internal",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#runtime-internal"
  }
}

Resolve work-workspace requirements

Compiles explicit provider-neutral requirements or one versioned preset and explains the platform path without allocating, waking, reserving UsageBudget, or contacting a provider. The response returns normalized requirements, the no-compute, SessionSandbox, or Computer class, every considered provider and stable rejection reason, warnings, estimated usage dimensions, portability grade, and manifest-bound digests. Current support resolves conversation-only and existing SessionSandbox intent; Computer intent remains an inspectable refusal until a qualified provider candidate exists. This read authorizes nothing and creation re-evaluates all live authority.

Checkfu support posture: alpha; hosted. Required evidence journey: session-turn. Deployment-specific readiness and the latest proven release are available from GET /v1/support/capabilities.

POST

work-environments

resolve

Resolve work-workspace requirements

curl --request POST \
  --url https://api.checkfu.com/v1/work-environments/resolve \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'checkfu-version: <checkfu-version>' \
  --data '
{
  "input_type": "preset",
  "overrides": {
    "execution": [],
    "placement": []
  }
}
'

import requests

url = "https://api.checkfu.com/v1/work-environments/resolve"

payload = {
    "input_type": "preset",
    "overrides": {
        "execution": [],
        "placement": []
    }
}
headers = {
    "checkfu-version": "<checkfu-version>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'checkfu-version': '<checkfu-version>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({input_type: 'preset', overrides: {execution: [], placement: []}})
};

fetch('https://api.checkfu.com/v1/work-environments/resolve', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.checkfu.com/v1/work-environments/resolve",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'input_type' => 'preset',
    'overrides' => [
        'execution' => [
                
        ],
        'placement' => [
                
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "checkfu-version: <checkfu-version>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.checkfu.com/v1/work-environments/resolve"

	payload := strings.NewReader("{\n  \"input_type\": \"preset\",\n  \"overrides\": {\n    \"execution\": [],\n    \"placement\": []\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("checkfu-version", "<checkfu-version>")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.checkfu.com/v1/work-environments/resolve")
  .header("checkfu-version", "<checkfu-version>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"input_type\": \"preset\",\n  \"overrides\": {\n    \"execution\": [],\n    \"placement\": []\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.checkfu.com/v1/work-environments/resolve")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["checkfu-version"] = '<checkfu-version>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"input_type\": \"preset\",\n  \"overrides\": {\n    \"execution\": [],\n    \"placement\": []\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "disposition": "resolved",
  "resolver_version": "work-environment-resolver/v1",
  "preset_catalog_version": 1,
  "normalized_requirements": {
    "schema_version": 1,
    "execution": [
      "shell"
    ],
    "lifetime": "run",
    "presentation": "none",
    "human_access": "none",
    "placement": [
      "managed"
    ],
    "isolation": {
      "filesystem": "attachment",
      "browser_profile": "attachment",
      "process_namespace": "attachment",
      "credentials": "grant_bound",
      "clipboard": "disabled",
      "downloads": "attachment"
    },
    "recovery": "none",
    "retention": {
      "mode": "ephemeral_zdr",
      "maximum_seconds": 157680000,
      "export": "forbidden"
    },
    "network": {
      "mode": "none",
      "policy": {
        "action_policy_id": "<string>",
        "action_policy_version": 1
      }
    },
    "locality": {
      "regions": [
        "<string>"
      ],
      "residency_required": true
    },
    "resources": {
      "minimum_vcpu": 512,
      "minimum_memory_mib": 2097152,
      "minimum_disk_mib": 536870912,
      "gpu": "forbidden"
    }
  },
  "resolved_kind": "none",
  "requires_screen": true,
  "forced_by": [
    "<string>"
  ],
  "selected_provider": {
    "provider": "<string>",
    "tuple_digest": "<string>",
    "evidence_grade": "double"
  },
  "considered": [
    {
      "provider": "<string>",
      "tuple_digest": "<string>",
      "qualified": true,
      "reasons": [
        {
          "code": "live_qualification_missing",
          "requirement_path": "<string>",
          "expected": "<string>",
          "observed": "<string>",
          "evidence_reference": "<string>"
        }
      ]
    }
  ],
  "warnings": [
    {
      "code": "shared_profile_credentials",
      "message": "<string>",
      "acknowledgement_required": true
    }
  ],
  "estimated_usage_dimensions": [
    "compute_seconds"
  ],
  "refusal": {
    "code": "human_access_requires_presentation",
    "requirement_path": "<string>",
    "message": "<string>"
  },
  "portability": "not_applicable",
  "candidate_set_digest": "<string>",
  "resolution_digest": "<string>"
}

{
  "error": {
    "type": "validation.malformed",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#validation-malformed"
  }
}

{
  "error": {
    "type": "auth.invalid_key",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-invalid-key"
  }
}

{
  "error": {
    "type": "auth.disabled_tenancy",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#auth-disabled-tenancy"
  }
}

{
  "error": {
    "type": "budget.exceeded",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#budget-exceeded"
  }
}

{
  "error": {
    "type": "runtime.internal",
    "message": "<string>",
    "more": "https://docs.checkfu.com/reference/errors#runtime-internal"
  }
}

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

checkfu-version

enum<string>

required

Available options:

2026-08-27

Body

application/json

Option 1
Option 2

Explicit requirements or a versioned convenience preset with safe overrides.

input_type

enum<string>

required

Available options:

preset

preset

enum<string>

required

Available options:

conversation_only,

sandbox_ephemeral,

sandbox_durable,

browser_isolated,

browser_shared_profile,

desktop_isolated,

desktop_shared_filesystem,

connected_computer

overrides

object

Show child attributes

Response

A deterministic allocation-free explanation of work-environment admission.

disposition

enum<string>

required

Available options:

resolved,

refused

resolver_version

enum<string>

required

Available options:

work-environment-resolver/v1

preset_catalog_version

enum<number>

required

Available options:

1

normalized_requirements

object

required

Show child attributes

resolved_kind

enum<string>

required

Available options:

none,

session_sandbox,

computer

requires_screen

boolean

required

forced_by

string[]

required

Maximum array length: 16

Required string length: 1 - 128

Pattern: ^[a-z_]+(?:\.[a-z_]+)*$

selected_provider

object | null

required

Show child attributes

considered

object[]

required

Maximum array length: 64

Show child attributes

warnings

object[]

required

Maximum array length: 16

Show child attributes

estimated_usage_dimensions

enum<string>[]

required

Maximum array length: 3

Available options:

compute_seconds,

screen_seconds,

storage_mib_seconds

refusal

object | null

required

A stable, provider-neutral reason a work environment cannot be admitted.

Show child attributes

portability

enum<string>

required

Available options:

not_applicable,

unproved,

single_live_provider,

portable

candidate_set_digest

string

required

Pattern: ^sha256:[0-9a-f]{64}$

resolution_digest

string

required

Pattern: ^sha256:[0-9a-f]{64}$

Developer tools

Canonical tables

Author protocols

Generated HTTP API

Resolve work-workspace requirements

Authorizations

Headers

Body

Response