exec_cross_chain_route

Find optimal cross-chain route across XRPL, Hedera, and Base. Returns cheapest path with gas costs, latency, and slippage.

Parameters5

from_chain	string	required	Source chain (xrpl-testnet, base, hedera-testnet)
to_chain	string	required	Destination chain
from_asset	string	required	Source asset (XRP, USDC, HBAR)
to_asset	string	required	Destination asset
amount	string	required	Amount to route

Raw schema

{
  "type": "object",
  "properties": {
    "from_chain": {
      "type": "string",
      "description": "Source chain (xrpl-testnet, base, hedera-testnet)"
    },
    "to_chain": {
      "type": "string",
      "description": "Destination chain"
    },
    "from_asset": {
      "type": "string",
      "description": "Source asset (XRP, USDC, HBAR)"
    },
    "to_asset": {
      "type": "string",
      "description": "Destination asset"
    },
    "amount": {
      "type": "string",
      "description": "Amount to route"
    }
  },
  "required": [
    "from_chain",
    "to_chain",
    "from_asset",
    "to_asset",
    "amount"
  ]
}

exec_browser_workflow

Multi-step browser automation: navigate to URLs, fill forms, click elements, scrape content, and return structured results.

Parameters1

workflow

object

required

Array of steps: { action: 'navigate'|'fetch'|'search', url/query: string }

Raw schema

{
  "type": "object",
  "properties": {
    "workflow": {
      "type": "object",
      "description": "Array of steps: { action: 'navigate'|'fetch'|'search', url/query: string }"
    }
  },
  "required": [
    "workflow"
  ]
}

exec_compliance_audit

EU AI Act + DSA + MiCA compliance scan for any endpoint URL. Returns risk category, transparency status, and signed attestation.

Parameters1

endpoint_url

string

required

URL to audit

Raw schema

{
  "type": "object",
  "properties": {
    "endpoint_url": {
      "type": "string",
      "description": "URL to audit"
    }
  },
  "required": [
    "endpoint_url"
  ]
}

exec_web_search

Structured web search via Bing RSS. Returns titles, URLs, descriptions, and publish dates for any query.

Parameters2

query	string	required	Search query
limit	number	optional	Max results (default 5)

Raw schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Search query"
    },
    "limit": {
      "type": "number",
      "description": "Max results (default 5)",
      "default": 5
    }
  },
  "required": [
    "query"
  ]
}

exec_page_extract

Fetch and extract structured content from any URL: title, description, body text, HTTP headers.

Parameters2

url	string	required	URL to extract content from
extract_mode	string	optional	preview=3K chars, full=20K chars

Raw schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "URL to extract content from"
    },
    "extract_mode": {
      "type": "string",
      "enum": [
        "preview",
        "full"
      ],
      "description": "preview=3K chars, full=20K chars"
    }
  },
  "required": [
    "url"
  ]
}

exec_dns_audit

Full DNS/SSL/SPF/DKIM/security-headers audit for any domain. Returns graded report with A+ through C.

Parameters1

domain

string

required

Domain to audit (e.g. example.com)

Raw schema

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain to audit (e.g. example.com)"
    }
  },
  "required": [
    "domain"
  ]
}

exec_kv_store

Key-value storage for agents. Put, get, delete, and list key-value pairs in edge storage.

Parameters4

action	string	required	Storage action
key	string	optional	Key for the value
value	string	optional	Value to store (required for put)
prefix	string	optional	Prefix filter (for list)

Raw schema

{
  "type": "object",
  "properties": {
    "action": {
      "type": "string",
      "enum": [
        "put",
        "get",
        "delete",
        "list"
      ],
      "description": "Storage action"
    },
    "key": {
      "type": "string",
      "description": "Key for the value"
    },
    "value": {
      "type": "string",
      "description": "Value to store (required for put)"
    },
    "prefix": {
      "type": "string",
      "description": "Prefix filter (for list)"
    }
  },
  "required": [
    "action"
  ]
}

exec_r2_store

Object storage for agents. Put, get, delete, and list objects in edge object storage.

Parameters4

action	string	required	Storage action
key	string	optional	Key for the object
value	string	optional	Object content (required for put)
prefix	string	optional	Prefix filter (for list)

Raw schema

{
  "type": "object",
  "properties": {
    "action": {
      "type": "string",
      "enum": [
        "put",
        "get",
        "delete",
        "list"
      ],
      "description": "Storage action"
    },
    "key": {
      "type": "string",
      "description": "Key for the object"
    },
    "value": {
      "type": "string",
      "description": "Object content (required for put)"
    },
    "prefix": {
      "type": "string",
      "description": "Prefix filter (for list)"
    }
  },
  "required": [
    "action"
  ]
}

exec_spend_cap

Per-agent USDC budget enforcement. Fronts any x402 endpoint and caps daily/monthly/per-call spend with webhook alerts. Actions: check, record, config, status.

Parameters8

action	string	required	What to do: check a proposed spend, record an actual spend, read/update cap config, or query current status
agent_id	string	optional	Agent identifier (ERC-8004 tokenId, wallet address, or other stable ID)
wallet	string	optional	Legacy: 0x... wallet address (alternative to agent_id)
amount_usdc	string	optional	Spend amount as a decimal string (e.g. '0.15') — required for check/record
tx_hash	string	optional	Optional: the on-chain tx hash for traceability
upstream_url	string	optional	Optional for check: forward the x402 call to this URL after passing the cap
forward_body	any	optional	Optional for check: request body to forward to upstream_url
caps	object	optional	For action=config: cap configuration to write

Raw schema

{
  "type": "object",
  "properties": {
    "action": {
      "type": "string",
      "enum": [
        "check",
        "record",
        "config",
        "status"
      ],
      "description": "What to do: check a proposed spend, record an actual spend, read/update cap config, or query current status"
    },
    "agent_id": {
      "type": "string",
      "description": "Agent identifier (ERC-8004 tokenId, wallet address, or other stable ID)"
    },
    "wallet": {
      "type": "string",
      "description": "Legacy: 0x... wallet address (alternative to agent_id)"
    },
    "amount_usdc": {
      "type": "string",
      "description": "Spend amount as a decimal string (e.g. '0.15') — required for check/record"
    },
    "tx_hash": {
      "type": "string",
      "description": "Optional: the on-chain tx hash for traceability"
    },
    "upstream_url": {
      "type": "string",
      "description": "Optional for check: forward the x402 call to this URL after passing the cap"
    },
    "forward_body": {
      "description": "Optional for check: request body to forward to upstream_url"
    },
    "caps": {
      "type": "object",
      "description": "For action=config: cap configuration to write",
      "properties": {
        "daily_usdc": {
          "type": "string",
          "description": "Max USDC per day (e.g. '5.00')"
        },
        "monthly_usdc": {
          "type": "string",
          "description": "Max USDC per month (e.g. '100.00')"
        },
        "per_call_max_usdc": {
          "type": "string",
          "description": "Max USDC per single call (e.g. '1.00')"
        },
        "webhook_url": {
          "type": "string",
          "description": "Discord/Slack/email URL to ping on cap events"
        }
      }
    }
  },
  "required": [
    "action"
  ]
}

exec_agent_passport

ERC-8004 identity + reputation bridge. Verifies onchain agent identity, fetches reputation summary + validation count from Base mainnet, and returns a normalised trust_score (0-100). Actions: verify, register, summary, search.

Parameters6

action	string	required	verify: compute trust score from onchain identity+reputation. register: fetch agent's tokenURI registration JSON (cached 24h). summary: return client_count, feedback_count, summary_value, validation_count. search: 'owner:<addr>' returns balanceOf on Identity Registry.
agent_id	string	optional	ERC-8004 tokenId (uint256 as string) — required for verify/register/summary
owner	string	optional	Optional for verify: assert the onchain owner matches this address
min_score	number	optional	For verify: minimum trust score required to pass (0-100, default 0 = no min)
tag	string	optional	Optional for verify/summary: filter reputation by tag (e.g. 'x402-payment')
search_query	string	optional	For search: 'owner:<address>' format returns agent count for that owner

Raw schema

{
  "type": "object",
  "properties": {
    "action": {
      "type": "string",
      "enum": [
        "verify",
        "register",
        "summary",
        "search"
      ],
      "description": "verify: compute trust score from onchain identity+reputation. register: fetch agent's tokenURI registration JSON (cached 24h). summary: return client_count, feedback_count, summary_value, validation_count. search: 'owner:<addr>' returns balanceOf on Identity Registry."
    },
    "agent_id": {
      "type": "string",
      "description": "ERC-8004 tokenId (uint256 as string) — required for verify/register/summary"
    },
    "owner": {
      "type": "string",
      "description": "Optional for verify: assert the onchain owner matches this address"
    },
    "min_score": {
      "type": "number",
      "description": "For verify: minimum trust score required to pass (0-100, default 0 = no min)"
    },
    "tag": {
      "type": "string",
      "description": "Optional for verify/summary: filter reputation by tag (e.g. 'x402-payment')"
    },
    "search_query": {
      "type": "string",
      "description": "For search: 'owner:<address>' format returns agent count for that owner"
    }
  },
  "required": [
    "action"
  ]
}

exec_revenue_dashboard

Hosted SaaS-style analytics for x402 engine operators. Returns sales snapshot (per-primitive stats), timeseries note, realtime receipts (latest N), and configures webhook alerts. Reads from the same KV + R2 stats that emitReceipt writes to.

Parameters6

action	string	required	snapshot: per-primitive stats + totals. timeseries: aggregate-by-primitive with note on daily buckets. export: bulk dump of receipts from R2. realtime: most recent N receipts. configure: set webhook URL and alert threshold.
period_days	number	optional	For snapshot: time window in days (default 7)
bucket_days	number	optional	For timeseries: bucket size in days (default 1)
max_receipts	number	optional	For export/realtime: max receipts to return (default 100, cap 1000)
webhook_url	string	optional	For configure: webhook URL to ping on alert events
alert_threshold_usdc	string	optional	For configure: alert when daily revenue drops below this

Raw schema

{
  "type": "object",
  "properties": {
    "action": {
      "type": "string",
      "enum": [
        "snapshot",
        "timeseries",
        "export",
        "realtime",
        "configure"
      ],
      "description": "snapshot: per-primitive stats + totals. timeseries: aggregate-by-primitive with note on daily buckets. export: bulk dump of receipts from R2. realtime: most recent N receipts. configure: set webhook URL and alert threshold."
    },
    "period_days": {
      "type": "number",
      "description": "For snapshot: time window in days (default 7)"
    },
    "bucket_days": {
      "type": "number",
      "description": "For timeseries: bucket size in days (default 1)"
    },
    "max_receipts": {
      "type": "number",
      "description": "For export/realtime: max receipts to return (default 100, cap 1000)"
    },
    "webhook_url": {
      "type": "string",
      "description": "For configure: webhook URL to ping on alert events"
    },
    "alert_threshold_usdc": {
      "type": "string",
      "description": "For configure: alert when daily revenue drops below this"
    }
  },
  "required": [
    "action"
  ]
}

cf_llm

LLM inference via Cloudflare Workers AI (Llama 3.2, Mistral, and more). Pay per completion.

Parameters3

model	string	optional	Model name (default: openai/gpt-4o-mini)
prompt	string	required	User prompt
system	string	optional	System prompt

Raw schema

{
  "type": "object",
  "properties": {
    "model": {
      "type": "string",
      "description": "Model name (default: openai/gpt-4o-mini)"
    },
    "prompt": {
      "type": "string",
      "description": "User prompt"
    },
    "system": {
      "type": "string",
      "description": "System prompt"
    }
  },
  "required": [
    "prompt"
  ]
}

cf_stt

Speech-to-text transcription. Upload audio or provide URL, get text back.

Parameters2

audio_url	string	required	URL of audio file to transcribe
language	string	optional	Language code (optional)

Raw schema

{
  "type": "object",
  "properties": {
    "audio_url": {
      "type": "string",
      "description": "URL of audio file to transcribe"
    },
    "language": {
      "type": "string",
      "description": "Language code (optional)"
    }
  },
  "required": [
    "audio_url"
  ]
}

cf_embed

Generate text embeddings for semantic search and RAG applications.

Parameters2

text	string	required	Text or array of texts to embed
model	string	optional	Embedding model (default: text-embedding-3-small)

Raw schema

{
  "type": "object",
  "properties": {
    "text": {
      "type": "string",
      "description": "Text or array of texts to embed"
    },
    "model": {
      "type": "string",
      "description": "Embedding model (default: text-embedding-3-small)"
    }
  },
  "required": [
    "text"
  ]
}

cf_image

Generate images from text prompts. Flux and Stable Diffusion models.

Parameters3

prompt	string	required	Image description prompt
model	string	optional	Model (default: flux-schnell)
size	string	optional	Image size (default: 1024x1024)

Raw schema

{
  "type": "object",
  "properties": {
    "prompt": {
      "type": "string",
      "description": "Image description prompt"
    },
    "model": {
      "type": "string",
      "description": "Model (default: flux-schnell)"
    },
    "size": {
      "type": "string",
      "description": "Image size (default: 1024x1024)"
    }
  },
  "required": [
    "prompt"
  ]
}

cf_llm_cached

LLM inference with KV cache. Identical prompts return cached responses at 50% lower cost.

Parameters3

model	string	optional	Model name
prompt	string	required	User prompt
system	string	optional	System prompt

Raw schema

{
  "type": "object",
  "properties": {
    "model": {
      "type": "string",
      "description": "Model name"
    },
    "prompt": {
      "type": "string",
      "description": "User prompt"
    },
    "system": {
      "type": "string",
      "description": "System prompt"
    }
  },
  "required": [
    "prompt"
  ]
}

cf_browser

Headless browser automation. Navigate URLs, extract text, HTML, and metadata.

Parameters3

url	string	required	URL to browse
action	string	required	What to extract
selector	string	optional	CSS selector for HTML extraction

Raw schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "URL to browse"
    },
    "action": {
      "type": "string",
      "enum": [
        "text",
        "html",
        "screenshot"
      ],
      "description": "What to extract"
    },
    "selector": {
      "type": "string",
      "description": "CSS selector for HTML extraction"
    }
  },
  "required": [
    "url",
    "action"
  ]
}

cf_code

Execute code in an isolated Cloudflare Dynamic Worker sandbox. JavaScript and Python only. Code can be a function (stdin) => result or a bare expression. Network access is blocked.

Parameters3

language	string	required	Programming language
code	string	required	Source code to execute
stdin	string	optional	Standard input

Raw schema

{
  "type": "object",
  "properties": {
    "language": {
      "type": "string",
      "description": "Programming language"
    },
    "code": {
      "type": "string",
      "description": "Source code to execute"
    },
    "stdin": {
      "type": "string",
      "description": "Standard input"
    }
  },
  "required": [
    "language",
    "code"
  ]
}

io.github.invertedhoologan/sovereign-engine

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

exec_cross_chain_route

exec_browser_workflow

exec_compliance_audit

exec_web_search

exec_page_extract

exec_dns_audit

exec_kv_store

exec_r2_store

exec_spend_cap

exec_agent_passport

exec_revenue_dashboard

cf_llm

cf_stt

cf_embed

cf_image

cf_llm_cached

cf_browser

cf_code

Install

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