A
Judge0 via Locus MPP
compute
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Compliance Checks
All paid ops declare 402 response
MUST
10pt
All x-payment-info valid
MUST
10pt
Challenge has Cache-Control: no-store
MUST
5pt
Challenge digest on POST
SHOULD
3pt
Challenge has expires
SHOULD
3pt
Challenge has Problem Details
SHOULD
2pt
Challenge has required params
MUST
5pt
Challenge has WWW-Authenticate
MUST
5pt
Challenge returns 402
MUST
10pt
Correct Content-Type
MUST
5pt
Has Cache-Control on discovery
SHOULD
5pt
Has input schemas
SHOULD
5pt
Has llms.txt
SHOULD
5pt
Has /openapi.json at root
MUST
10pt
Has required top-level fields
MUST
10pt
Served over HTTPS
MUST
10pt
Uses standard categories
SHOULD
2pt
1 issue
- POST endpoint challenge missing digest parameter (SHOULD per spec)
Paid Operations (5)
POST /judge0/execute-code 0.006 USDC.e
Execute Code
- Amount
- 0.006 (raw 6000)
- Currency
- USDC.e
- Method
- tempo
- Intent
- charge
- 402 Declared
- Yes
Input Schema
| Field | Type | Required | Description |
|---|---|---|---|
| command_line_arguments | string | No | Command-line arguments passed to the program (max 512 chars) |
| compiler_options | string | No | Compiler flags (max 512 chars, e.g., "-O2 -Wall") |
| cpu_time_limit | number | No | CPU time limit in seconds (default: instance-dependent) |
| enable_network | boolean | No | Allow network access inside the sandbox |
| expected_output | string | No | Expected output — if provided, status will indicate whether output matches |
| language_id | string | Yes | Language ID (e.g., 71 for Python 3, 63 for JavaScript, 54 for C++, 62 for Java). Use list-languages to find IDs. |
| memory_limit | number | No | Memory limit in kilobytes |
| redirect_stderr_to_stdout | boolean | No | Redirect stderr to stdout in the output |
| source_code | string | Yes | Program source code to execute |
| stack_limit | number | No | Stack size limit in kilobytes |
| stdin | string | No | Standard input for the program |
| wall_time_limit | number | No | Wall clock time limit in seconds |
POST /judge0/submit-code 0.006 USDC.e
Submit Code (Async)
- Amount
- 0.006 (raw 6000)
- Currency
- USDC.e
- Method
- tempo
- Intent
- charge
- 402 Declared
- Yes
Input Schema
| Field | Type | Required | Description |
|---|---|---|---|
| command_line_arguments | string | No | Command-line arguments passed to the program (max 512 chars) |
| compiler_options | string | No | Compiler flags (max 512 chars, e.g., "-O2 -Wall") |
| cpu_time_limit | number | No | CPU time limit in seconds (default: instance-dependent) |
| enable_network | boolean | No | Allow network access inside the sandbox |
| expected_output | string | No | Expected output — if provided, status will indicate whether output matches |
| language_id | string | Yes | Language ID (e.g., 71 for Python 3, 63 for JavaScript, 54 for C++, 62 for Java). Use list-languages to find IDs. |
| memory_limit | number | No | Memory limit in kilobytes |
| redirect_stderr_to_stdout | boolean | No | Redirect stderr to stdout in the output |
| source_code | string | Yes | Program source code to execute |
| stack_limit | number | No | Stack size limit in kilobytes |
| stdin | string | No | Standard input for the program |
| wall_time_limit | number | No | Wall clock time limit in seconds |
POST /judge0/get-submission 0.005 USDC.e
Get Submission
- Amount
- 0.005 (raw 5000)
- Currency
- USDC.e
- Method
- tempo
- Intent
- charge
- 402 Declared
- Yes
Input Schema
| Field | Type | Required | Description |
|---|---|---|---|
| token | string | Yes | Submission token returned by submit-code |
POST /judge0/list-languages 0.005 USDC.e
List Languages
- Amount
- 0.005 (raw 5000)
- Currency
- USDC.e
- Method
- tempo
- Intent
- charge
- 402 Declared
- Yes
POST /judge0/list-statuses 0.005 USDC.e
List Statuses
- Amount
- 0.005 (raw 5000)
- Currency
- USDC.e
- Method
- tempo
- Intent
- charge
- 402 Declared
- Yes
Payment Methods
- Methods
- tempo
- Intents
- charge
- Currencies (discovery)
- USDC.e
- Currency (challenge)
- USDC.e on Tempo (Tempo)
- Multiple Challenges
- No
Recipients
- 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
Per-endpoint breakdown
- POST /judge0/execute-code
- 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
- POST /judge0/get-submission
- 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
- POST /judge0/list-languages
- 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
- POST /judge0/list-statuses
- 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
- POST /judge0/submit-code
- 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
Security
- TLS Version
- TLSv1.3
- Challenge ID Unique
- -
- Challenge ID Length
- -
- Digest Binding
- -
Uptime
- Discovery
- Reachable (581ms)
- Challenge
- Reachable (561ms)
- Last Checked
Schema Completeness
- Paid Operations
- 5
- With Input Schema
- 3
- With Description
- 5
2 missing schema
- POST /judge0/list-languages
- POST /judge0/list-statuses
Documentation
- Homepage
- https://judge0.com
- API Reference
- https://ce.judge0.com
- llms.txt
- https://beta.paywithlocus.com/mpp/judge0.md reachable
Discovery
- OpenAPI URL
- https://judge0.mpp.paywithlocus.com/openapi.json
- OpenAPI Version
- 3.1.0
- Service Version
- 1.0.0
- Document Size
- 4686 bytes
- Document Hash
- 0eeb3589f09e55ea03134b7b73a8f61451dd8df16d34cccb5b771328a762bb7e
Version History (2 snapshots)
Scan snapshots
| Date | Grade | Score | Response | Status |
|---|---|---|---|---|
| 2026-04-06 | A | 97% | 628ms | Up |
| 2026-04-07 | A | 97% | 751ms | Up |