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Legal teams and contract management platforms use this recipe to automate contract review. Upload a contract and receive structured JSON with involved parties, key dates, and individual clauses — ready for a compliance check, risk analysis, or contract database.
APIs Used
Document Extraction (1 credit per page)
Prerequisites
You need an Iteration Layer API key. Get one at platform.iterationlayer.com — free trial credits included, no credit card required.
from iterationlayer import IterationLayer
client = IterationLayer(api_key="YOUR_API_KEY")
result = client.extract_document(
files=[
{
"type": "url",
"name": "contract.pdf",
"url": "https://example.com/contracts/service-agreement.pdf",
}
],
schema={
"fields": [
{
"name": "parties",
"type": "ARRAY",
"description": "Parties involved in the contract",
"fields": [
{
"name": "name",
"type": "TEXT",
"description": "Name of the party",
},
{
"name": "role",
"type": "TEXT",
"description": "Role of the party (e.g. client, provider)",
},
],
},
{
"name": "effective_date",
"type": "DATE",
"description": "Date the contract takes effect",
},
{
"name": "termination_date",
"type": "DATE",
"description": "Date the contract expires or terminates",
},
{
"name": "clauses",
"type": "ARRAY",
"description": "Individual contract clauses",
"fields": [
{
"name": "title",
"type": "TEXT",
"description": "Clause heading or title",
},
{
"name": "content",
"type": "TEXTAREA",
"description": "Full text of the clause",
},
],
},
]
},
)
package main
import il "github.com/iterationlayer/sdk-go"funcmain() {
client := il.NewClient("YOUR_API_KEY")
result, err := client.ExtractDocument(il.ExtractDocumentRequest{
Files: []il.FileInput{
il.FileInput{
Type: "url",
Name: "contract.pdf",
Url: "https://example.com/contracts/service-agreement.pdf",
},
},
Schema: il.ExtractionSchema{
Fields: []any{
il.ArrayFieldConfig{
Name: "parties",
Type: "ARRAY",
Description: "Parties involved in the contract",
Fields: []any{
il.TextFieldConfig{
Name: "name",
Type: "TEXT",
Description: "Name of the party",
},
il.TextFieldConfig{
Name: "role",
Type: "TEXT",
Description: "Role of the party (e.g. client, provider)",
},
},
},
il.DateFieldConfig{
Name: "effective_date",
Type: "DATE",
Description: "Date the contract takes effect",
},
il.DateFieldConfig{
Name: "termination_date",
Type: "DATE",
Description: "Date the contract expires or terminates",
},
il.ArrayFieldConfig{
Name: "clauses",
Type: "ARRAY",
Description: "Individual contract clauses",
Fields: []any{
il.TextFieldConfig{
Name: "title",
Type: "TEXT",
Description: "Clause heading or title",
},
il.TextareaFieldConfig{
Name: "content",
Type: "TEXTAREA",
Description: "Full text of the clause",
},
},
},
},
},
})
if err != nil {
panic(err)
}
_ = result
}
{
"name": "Extract Contract Clause Data",
"nodes": [
{
"parameters": {
"content": "## Extract Contract Clause Data\n\nLegal teams and contract management platforms use this recipe to automate contract review. Upload a contract and receive structured JSON with involved parties, key dates, and individual clauses \u2014 ready for a compliance check, risk analysis, or contract database.\n\n**Note:** This workflow uses the Iteration Layer community node (`n8n-nodes-iterationlayer`). Install it via Settings > Community Nodes on self-hosted n8n, or add it directly on n8n Cloud with Verified Community Nodes enabled.",
"height": 280,
"width": 500,
"color": 2
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
200,
40
],
"id": "6e40f220-51d4-4a97-ad58-88b23de638e5",
"name": "Overview"
},
{
"parameters": {
"content": "### Step 1: Extract Data\nResource: **Document Extraction**\n\nConfigure the Document Extraction parameters below, then connect your credentials.",
"height": 160,
"width": 300,
"color": 6
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
475,
100
],
"id": "bf59c222-8e4c-4369-86ab-6be21dce4a57",
"name": "Step 1 Note"
},
{
"parameters": {},
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [
250,
300
],
"id": "e5f6a7b8-c9d0-1234-efab-345678901234",
"name": "Manual Trigger"
},
{
"parameters": {
"resource": "documentExtraction",
"schemaInputMode": "rawJson",
"schemaJson": "{\"fields\":[{\"name\":\"parties\",\"type\":\"ARRAY\",\"description\":\"Parties involved in the contract\",\"fields\":[{\"name\":\"name\",\"type\":\"TEXT\",\"description\":\"Name of the party\"},{\"name\":\"role\",\"type\":\"TEXT\",\"description\":\"Role of the party (e.g. client, provider)\"}]},{\"name\":\"effective_date\",\"type\":\"DATE\",\"description\":\"Date the contract takes effect\"},{\"name\":\"termination_date\",\"type\":\"DATE\",\"description\":\"Date the contract expires or terminates\"},{\"name\":\"clauses\",\"type\":\"ARRAY\",\"description\":\"Individual contract clauses\",\"fields\":[{\"name\":\"title\",\"type\":\"TEXT\",\"description\":\"Clause heading or title\"},{\"name\":\"content\",\"type\":\"TEXTAREA\",\"description\":\"Full text of the clause\"}]}]}",
"files": {
"fileValues": [
{
"fileInputMode": "url",
"fileName": "contract.pdf",
"fileUrl": "https://example.com/contracts/service-agreement.pdf"
}
]
}
},
"type": "n8n-nodes-iterationlayer.iterationLayer",
"typeVersion": 1,
"position": [
500,
300
],
"id": "f6a7b8c9-d0e1-2345-fabc-456789012345",
"name": "Extract Data",
"credentials": {
"iterationLayerApi": {
"id": "1",
"name": "Iteration Layer API"
}
}
}
],
"connections": {
"Manual Trigger": {
"main": [
[
{
"node": "Extract Data",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
}
}
Extract contract clause data from the file at [file URL]. Use the extract_document tool with these fields:
- parties (ARRAY): Each with name (TEXT) and role (TEXT)
- effective_date (DATE): Date the contract takes effect
- termination_date (DATE): Date the contract expires or terminates
- clauses (ARRAY): Each with title (TEXT) and content (TEXTAREA)
Response
{"success":true,"data":{"parties":{"value":[{"name":{"value":"Nexus Technologies Inc.","confidence":0.98,"citations":["Nexus Technologies Inc."]},"role":{"value":"Client","confidence":0.96,"citations":["hereinafter the \"Client\""]}},{"name":{"value":"CloudServe Solutions LLC","confidence":0.97,"citations":["CloudServe Solutions LLC"]},"role":{"value":"Provider","confidence":0.95,"citations":["hereinafter the \"Provider\""]}}],"confidence":0.96,"citations":[]},"effective_date":{"value":"2026-04-01","confidence":0.98,"citations":["effective as of April 1, 2026"]},"termination_date":{"value":"2028-03-31","confidence":0.97,"citations":["terminating on March 31, 2028"]},"clauses":{"value":[{"title":{"value":"Limitation of Liability","confidence":0.98,"citations":["Section 8: Limitation of Liability"]},"content":{"value":"Neither party shall be liable for any indirect, incidental, or consequential damages arising out of this agreement, except in cases of gross negligence or willful misconduct.","confidence":0.94,"citations":["Neither party shall be liable for any indirect, incidental, or consequential damages"]}},{"title":{"value":"Confidentiality","confidence":0.99,"citations":["Section 5: Confidentiality"]},"content":{"value":"Both parties agree to maintain the confidentiality of all proprietary information disclosed during the term of this agreement for a period of three years following termination.","confidence":0.93,"citations":["maintain the confidentiality of all proprietary information"]}}],"confidence":0.95,"citations":[]}}}
