API Reference

Error Responses

All endpoints return errors in a consistent format:

{
  "error": true,
  "message": "Error description"
}

Common HTTP Status Codes:

200 - Success
201 - Created
202 - Accepted (async operation started)
400 - Bad Request (invalid input)
401 - Unauthorized (missing or invalid token)
404 - Not Found
500 - Internal Server Error

Pagination

Endpoints that return lists support pagination via query parameters:

Parameter	Default	Max	Description
`offset`	0	-	Number of records to skip
`limit`	20	10000	Maximum records to return

Example:

curl "http://localhost:8002/osm/api/assets?offset=100&limit=50" \
  -H "Authorization: Bearer $TOKEN"

Cron Expression Reference

Schedules use standard cron expressions:

┌───────────── minute (0-59)
│ ┌───────────── hour (0-23)
│ │ ┌───────────── day of month (1-31)
│ │ │ ┌───────────── month (1-12)
│ │ │ │ ┌───────────── day of week (0-6, Sunday=0)
│ │ │ │ │
* * * * *

Examples:

0 2 * * * - Every day at 2:00 AM
0 0 * * 0 - Every Sunday at midnight
*/30 * * * * - Every 30 minutes
0 9-17 * * 1-5 - Every hour from 9 AM to 5 PM, Monday to Friday

Workflow Step Types

Reference documentation for workflow step types used in YAML workflow definitions.

bash

Execute shell commands on the local system or configured runner.

- name: run-nuclei
  type: bash
  log: "Running nuclei scan"
  command: nuclei -u {{Target}} -o {{Output}}/nuclei.txt
  timeout: 3600
  exports:
    nuclei_results: "{{Output}}/nuclei.txt"

Fields:

Field	Type	Required	Description
`name`	string	Yes	Unique step name
`type`	string	Yes	Must be `bash`
`command`	string	No*	Single command to execute
`commands`	array	No*	Sequential commands
`parallel_commands`	array	No*	Commands to run in parallel
`timeout`	int	No	Timeout in seconds
`log`	string	No	Log message displayed during execution
`pre_condition`	string	No	Condition that must be true to run
`exports`	map	No	Variables to export after execution

*One of command, commands, or parallel_commands is required.

function

Execute utility functions written in JavaScript via Otto VM.

- name: check-file
  type: function
  log: "Checking if results exist"
  function: fileExists("{{Output}}/results.txt")
  exports:
    has_results: "{{check_file_output}}"

Fields:

Field	Type	Required	Description
`name`	string	Yes	Unique step name
`type`	string	Yes	Must be `function`
`function`	string	No*	Single function to execute
`functions`	array	No*	Sequential functions
`parallel_functions`	array	No*	Functions to run in parallel

*One of function, functions, or parallel_functions is required.

parallel-steps

Run multiple steps concurrently.

- name: parallel-scans
  type: parallel-steps
  log: "Running scans in parallel"
  parallel_steps:
    - name: nuclei-scan
      type: bash
      command: nuclei -u {{Target}}
    - name: httpx-scan
      type: bash
      command: httpx -u {{Target}}

Fields:

Field	Type	Required	Description
`name`	string	Yes	Unique step name
`type`	string	Yes	Must be `parallel-steps`
`parallel_steps`	array	Yes	Array of steps to run concurrently

foreach

Iterate over items from a file or array.

- name: scan-subdomains
  type: foreach
  log: "Scanning each subdomain"
  input: "{{Output}}/subdomains.txt"
  variable: subdomain
  step:
    name: scan-subdomain
    type: bash
    command: httpx -u [[subdomain]]

Fields:

Field	Type	Required	Description
`name`	string	Yes	Unique step name
`type`	string	Yes	Must be `foreach`
`input`	string	Yes	File path or array to iterate over
`variable`	string	Yes	Loop variable name (use `[[variable]]`)
`step`	object	Yes	Step to execute for each item
`parallel`	int	No	Number of parallel iterations

remote-bash

Execute commands in Docker containers or via SSH.

- name: docker-scan
  type: remote-bash
  log: "Running scan in Docker"
  step_runner: docker
  step_runner_config:
    image: "projectdiscovery/nuclei:latest"
    volumes:
      - "{{Output}}:/output"
  command: nuclei -u {{Target}} -o /output/nuclei.txt

Fields:

Field	Type	Required	Description
`name`	string	Yes	Unique step name
`type`	string	Yes	Must be `remote-bash`
`step_runner`	string	Yes	`docker` or `ssh`
`step_runner_config`	object	No	Runner-specific configuration
`command`	string	No*	Command to execute
`commands`	array	No*	Sequential commands

Docker Configuration:

step_runner_config:
  image: "image:tag"
  volumes: ["host:container"]
  env:
    KEY: value
  network: "host"
  workdir: "/app"

SSH Configuration:

step_runner_config:
  host: "worker.example.com"
  user: "ubuntu"
  key_file: "~/.ssh/id_rsa"
  port: 22

http

Make HTTP requests and capture responses.

- name: api-request
  type: http
  log: "Calling API"
  url: "https://api.example.com/endpoint"
  method: POST
  headers:
    Content-Type: "application/json"
    Authorization: "Bearer {{api_token}}"
  request_body: '{"domain": "{{Target}}"}'
  timeout: 30
  exports:
    api_response: "{{api_request_body}}"

Fields:

Field	Type	Required	Description
`name`	string	Yes	Unique step name
`type`	string	Yes	Must be `http`
`url`	string	Yes	Request URL
`method`	string	No	HTTP method (default: GET)
`headers`	map	No	Request headers
`request_body`	string	No	Request body for POST/PUT
`timeout`	int	No	Timeout in seconds

Auto-Exports:

<step_name>_status_code - HTTP status code
<step_name>_body - Response body
<step_name>_headers - Response headers

llm

Execute LLM (Large Language Model) API calls for AI-powered analysis.

- name: analyze-target
  type: llm
  log: "Analyzing target with LLM"
  messages:
    - role: system
      content: "You are a security analyst."
    - role: user
      content: "Analyze the security of {{Target}}"
  llm_config:
    max_tokens: 1000
    temperature: 0.7
  timeout: 60
  exports:
    analysis: "{{analyze_target_content}}"

Fields:

Field	Type	Required	Description
`name`	string	Yes	Unique step name
`type`	string	Yes	Must be `llm`
`messages`	array	No*	Chat messages (role + content)
`is_embedding`	bool	No	Set to true for embeddings
`embedding_input`	array	No*	Strings to embed
`llm_config`	object	No	Step-level LLM configuration
`tools`	array	No	Tool definitions for function calling
`tool_choice`	string	No	Tool selection (`auto`, `none`, etc.)
`extra_llm_parameters`	map	No	Additional provider-specific params
`timeout`	int	No	Timeout in seconds

*Either messages or embedding_input (with is_embedding: true) is required. Message Format:

messages:
  - role: system
    content: "System prompt"
  - role: user
    content: "User message with {{variables}}"

Multimodal Messages (with images):

messages:
  - role: user
    content:
      - type: text
        text: "What do you see in this screenshot?"
      - type: image_url
        image_url:
          url: "data:image/png;base64,{{screenshot_base64}}"

LLM Configuration Override:

llm_config:
  model: "gpt-4"
  max_tokens: 2000
  temperature: 0.3
  response_format:
    type: json_object

Embeddings:

- name: generate-embeddings
  type: llm
  is_embedding: true
  embedding_input:
    - "{{Target}} security analysis"
    - "vulnerability assessment"
  exports:
    embeddings: "{{generate_embeddings_llm_resp}}"

Tool Calling:

- name: with-tools
  type: llm
  messages:
    - role: user
      content: "What DNS records exist for {{Target}}?"
  tools:
    - type: function
      function:
        name: dns_lookup
        description: "Look up DNS records"
        parameters:
          type: object
          properties:
            domain:
              type: string
          required: [domain]
  tool_choice: auto

Auto-Exports:

<step_name>_llm_resp - Full response object (id, model, usage, content, tool_calls)
<step_name>_content - Just the content string for easy access

Getting Started

Advanced Setup

Understand Architecture

Workflows

Functions

Advanced Topics & Extending Osmedeus

Reference

API Reference

API Reference

Error Responses

Cron Expression Reference

Workflow Step Types

bash

function

parallel-steps

foreach

remote-bash

http

llm

Getting Started

Advanced Setup

Understand Architecture

Workflows

Functions

Advanced Topics & Extending Osmedeus

Reference

​API Reference

​Error Responses

​Pagination

​Cron Expression Reference

​Workflow Step Types

​bash

​function

​parallel-steps

​foreach

​remote-bash

​http

​llm

API Reference

Error Responses

Pagination

Cron Expression Reference

Workflow Step Types

bash

function

parallel-steps

foreach

remote-bash

http

llm