- •Close CRM - Daily driver for SMB sales (simplest API, best value)
- •HubSpot - Marketing + Sales alignment with rich ecosystem
- •Salesforce - Enterprise requirements and complex workflows
- •Cross-CRM Sync - Bidirectional sync with conflict resolution
Key deliverables:
- •API client setup with proper authentication
- •CRUD operations for leads, contacts, deals, activities
- •Webhook handlers for real-time sync
- •Pipeline automation and reporting </objective>
<quick_start> Close CRM (API Key Auth):
import httpx
class CloseClient:
BASE_URL = "https://api.close.com/api/v1"
def __init__(self, api_key: str):
self.client = httpx.Client(
base_url=self.BASE_URL,
auth=(api_key, ""), # Basic auth, password empty
timeout=30.0,
)
def create_lead(self, data: dict) -> dict:
response = self.client.post("/lead/", json=data)
response.raise_for_status()
return response.json()
def search_leads(self, query: str) -> list:
response = self.client.post("/data/search/", json={
"query": {"type": "query_string", "value": query},
"results_limit": 100
})
return response.json()["data"]
# Usage
close = CloseClient(os.environ["CLOSE_API_KEY"])
leads = close.search_leads("company:Coperniq")
HubSpot (Python SDK):
from hubspot import HubSpot
from hubspot.crm.contacts import SimplePublicObjectInputForCreate
client = HubSpot(access_token=os.environ["HUBSPOT_ACCESS_TOKEN"])
# Create contact
contact = client.crm.contacts.basic_api.create(
SimplePublicObjectInputForCreate(properties={
"email": "user@example.com",
"firstname": "Jane",
"lastname": "Smith"
})
)
print(f"Created: {contact.id}")
Salesforce (JWT Bearer):
import jwt
from datetime import datetime, timedelta
class SalesforceClient:
def __init__(self, client_id: str, username: str, private_key: str):
self.auth_url = "https://login.salesforce.com"
self._authenticate(client_id, username, private_key)
def _authenticate(self, client_id, username, private_key):
payload = {
"iss": client_id,
"sub": username,
"aud": self.auth_url,
"exp": int((datetime.utcnow() + timedelta(minutes=3)).timestamp())
}
assertion = jwt.encode(payload, private_key, algorithm="RS256")
response = httpx.post(f"{self.auth_url}/services/oauth2/token", data={
"grant_type": "urn:ietf:params:oauth:grant-type:jwt-bearer",
"assertion": assertion
})
self.access_token = response.json()["access_token"]
self.instance_url = response.json()["instance_url"]
</quick_start>
<success_criteria> A CRM integration is successful when:
- •API authentication works without errors
- •CRUD operations complete for all entity types
- •Rate limits are respected (Close: 100 req/10s, HubSpot: varies by tier)
- •Webhooks fire and process correctly
- •Data syncs bidirectionally without duplicates </success_criteria>
<crm_comparison>
Platform Comparison
| Feature | Close | HubSpot | Salesforce |
|---|---|---|---|
| Auth | API Key | OAuth 2.0 / Private App | JWT Bearer |
| Rate Limit | 100 req/10s | 100-200 req/10s by tier | 100k req/day |
| Best For | SMB sales, simplicity | Marketing + Sales | Enterprise |
| Starting Price | $49/user/mo | Free (limited) | $25/user/mo |
| API Access | All plans | Starter+ ($45+) | All plans |
| Webhooks | All plans | Pro+ ($800+) | All plans |
Entity Mapping
| Concept | Close | HubSpot | Salesforce |
|---|---|---|---|
| Company | lead | company | Account |
| Person | contact | contact | Contact / Lead |
| Deal | opportunity | deal | Opportunity |
| Activity | activity | engagement | Task / Event |
| Custom Field | custom.cf_xxx | properties | Field__c |
Pipeline Stage Mapping
| Stage | Close | HubSpot | Salesforce |
|---|---|---|---|
| New | Lead | appointmentscheduled | Prospecting |
| Qualified | Contacted | qualifiedtobuy | Qualification |
| Demo | Opportunity | presentationscheduled | Needs Analysis |
| Proposal | Proposal | decisionmakerboughtin | Proposal/Price Quote |
| Won | Won | closedwon | Closed Won |
| Lost | Lost | closedlost | Closed Lost |
| </crm_comparison> |
<close_patterns>
Close CRM (Daily Driver)
Query Language (for Smart Views)
# Leads with no activity in 30 days 'sort:date_updated asc date_updated < "30 days ago"' # High-value opportunities 'opportunities.value >= 50000 opportunities.status_type:active' # Custom field filtering 'custom.cf_industry = "MEP Contractor"' # Multiple trade types (your ICP) 'custom.cf_trades:HVAC OR custom.cf_trades:Electrical'
Core Operations
# Create lead with contacts
lead = close.create_lead({
"name": "ABC Mechanical",
"url": "https://abcmech.com",
"contacts": [{
"name": "John Smith",
"title": "Owner",
"emails": [{"email": "john@abcmech.com", "type": "office"}],
"phones": [{"phone": "555-1234", "type": "office"}]
}],
"custom.cf_tier": "Gold",
"custom.cf_source": "sales-agent"
})
# Create opportunity
opp = close._request("POST", "/opportunity/", json={
"lead_id": lead["id"],
"value": 50000,
"confidence": 50,
"status_id": "stat_xxx" # Pipeline stage
})
# Log activity
close._request("POST", "/activity/note/", json={
"lead_id": lead["id"],
"note": "Initial discovery call - interested in demo"
})
Rate Limit Headers (RFC-compliant)
X-RateLimit-Limit: 100 X-RateLimit-Remaining: 95 X-RateLimit-Reset: 1704067200
See
reference/close-deep-dive.mdfor query language, Smart Views, sequences, and reporting. </close_patterns>
<hubspot_patterns>
HubSpot Integration
Python SDK Pattern
from hubspot import HubSpot
from hubspot.crm.deals import SimplePublicObjectInputForCreate
from hubspot.crm.contacts import PublicObjectSearchRequest
client = HubSpot(access_token=os.environ["HUBSPOT_ACCESS_TOKEN"])
# Create deal with association
deal = client.crm.deals.basic_api.create(
SimplePublicObjectInputForCreate(properties={
"dealname": "Enterprise Deal",
"amount": "50000",
"dealstage": "appointmentscheduled",
"pipeline": "default"
})
)
# Search contacts by email domain
search = PublicObjectSearchRequest(
filter_groups=[{
"filters": [{
"propertyName": "email",
"operator": "CONTAINS",
"value": "@example.com"
}]
}],
properties=["email", "firstname", "lastname"],
limit=50
)
results = client.crm.contacts.search_api.do_search(search)
Association Types
| From | To | Type ID |
|---|---|---|
| Contact | Company | 1 |
| Contact | Deal | 4 |
| Company | Deal | 6 |
| Deal | Contact | 3 |
See
reference/hubspot-patterns.mdfor batch operations, custom properties, and workflows. </hubspot_patterns>
<salesforce_patterns>
Salesforce Integration
SOQL Query Patterns
-- Parent-child relationship (Contacts of Account) SELECT Id, Name, (SELECT LastName, Email FROM Contacts) FROM Account WHERE Industry = 'Technology' -- Child-parent relationship SELECT Id, FirstName, Account.Name, Account.Industry FROM Contact WHERE Account.Industry = 'Technology' -- Semi-join (Accounts with open Opportunities) SELECT Id, Name FROM Account WHERE Id IN (SELECT AccountId FROM Opportunity WHERE IsClosed = false)
REST API v59.0
def create_opportunity(self, data: dict) -> dict:
"""Required: Name, StageName, CloseDate."""
response = self.client.post(
f"{self.instance_url}/services/data/v59.0/sobjects/Opportunity/",
headers={"Authorization": f"Bearer {self.access_token}"},
json=data
)
return response.json()
# Composite API (batch up to 200 records)
def composite_create(self, records: list) -> dict:
return self.client.post(
f"{self.instance_url}/services/data/v59.0/composite/sobjects",
json={"allOrNone": False, "records": records}
)
See
reference/salesforce-patterns.mdfor JWT setup, Platform Events, and bulk API. </salesforce_patterns>
<webhook_patterns>
Webhook Handlers
Close Webhook (FastAPI)
from fastapi import FastAPI, Request, HTTPException
import hmac, hashlib
app = FastAPI()
@app.post("/webhooks/close")
async def close_webhook(request: Request):
body = await request.body()
signature = request.headers.get("Close-Sig")
expected = hmac.new(
CLOSE_WEBHOOK_SECRET.encode(), body, hashlib.sha256
).hexdigest()
if not hmac.compare_digest(signature, expected):
raise HTTPException(401, "Invalid signature")
data = await request.json()
event_type = data["event"]["event_type"]
handlers = {
"lead.created": handle_lead_created,
"opportunity.status_changed": handle_opp_stage_change,
}
if handler := handlers.get(event_type):
await handler(data["event"]["data"])
return {"status": "ok"}
Close Webhook Events
lead.created, lead.updated, lead.deleted, lead.status_changed contact.created, contact.updated opportunity.created, opportunity.status_changed activity.note.created, activity.call.created, activity.email.created unsubscribed_email.created
</webhook_patterns>
<sync_architecture>
Cross-CRM Sync
Architecture
┌─────────────┐ ┌──────────────┐ ┌─────────────┐ │ Close │────▶│ Sync Layer │◀────│ HubSpot │ │ (Primary) │◀────│ (Postgres) │────▶│ (Marketing)│ └─────────────┘ └──────────────┘ └─────────────┘
Sync Record Schema
CREATE TABLE crm_sync_records (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
entity_type VARCHAR(50) NOT NULL,
close_id VARCHAR(100) UNIQUE,
hubspot_id VARCHAR(100) UNIQUE,
salesforce_id VARCHAR(100) UNIQUE,
email VARCHAR(255),
company_name VARCHAR(255),
last_synced_at TIMESTAMPTZ,
sync_source VARCHAR(50),
sync_hash VARCHAR(64)
);
CREATE INDEX idx_sync_email ON crm_sync_records(email);
Conflict Resolution
from enum import Enum
class ConflictStrategy(Enum):
CLOSE_WINS = "close" # Close is source of truth
LAST_WRITE_WINS = "lww" # Most recent update wins
def resolve_conflict(close_record, hubspot_record, strategy):
if strategy == ConflictStrategy.CLOSE_WINS:
merged = close_record.copy()
for key, value in hubspot_record.items():
if key not in merged or not merged[key]:
merged[key] = value
return merged
See
reference/sync-patterns.mdfor deduplication, migration scripts, and bulk sync. </sync_architecture>
<file_locations>
Reference Files
CRM-Specific:
- •
reference/close-deep-dive.md- Query language, Smart Views, sequences, reporting - •
reference/hubspot-patterns.md- SDK patterns, batch operations, workflows - •
reference/salesforce-patterns.md- JWT auth, SOQL, Platform Events, bulk API
Operations:
- •
reference/sync-patterns.md- Cross-CRM sync, deduplication, migration - •
reference/automation.md- Webhook setup, sequences, workflows
Templates:
- •
templates/close-client.py- Full Close API client - •
templates/hubspot-client.py- HubSpot SDK wrapper - •
templates/sync-service.py- Cross-CRM sync service </file_locations>
User wants CRM integration: → Ask which CRM (Close recommended for simplicity) → Provide auth setup + basic CRUD
User wants Close CRM:
→ Provide API key setup, query language
→ Reference: reference/close-deep-dive.md
User wants HubSpot:
→ Provide SDK setup, search patterns
→ Reference: reference/hubspot-patterns.md
User wants Salesforce:
→ Provide JWT auth, SOQL patterns
→ Reference: reference/salesforce-patterns.md
User wants sync between CRMs:
→ Provide sync architecture, conflict resolution
→ Reference: reference/sync-patterns.md
User wants webhooks: → Provide handler pattern for specified CRM → Include signature verification </routing>
<env_setup>
Environment Variables
# Close CRM export CLOSE_API_KEY="api_xxx" export CLOSE_WEBHOOK_SECRET="whsec_xxx" # HubSpot export HUBSPOT_ACCESS_TOKEN="pat-xxx" # Salesforce export SF_CLIENT_ID="xxx" export SF_USERNAME="user@company.com" export SF_PRIVATE_KEY_PATH="./salesforce.key" export SF_INSTANCE_URL="https://yourorg.my.salesforce.com"
# Install dependencies pip install httpx pyjwt hubspot-api-client python-dotenv
</env_setup>
<example_session>
Example Session
User: "I need to push enriched leads from my sales-agent to Close CRM"
Claude:
- •Here's the pattern for pushing enriched data to Close:
async def push_to_close(close_client, enriched_data: dict) -> str:
lead_data = {
"name": enriched_data["company_name"],
"url": enriched_data.get("website"),
"custom.cf_tier": enriched_data["tier"],
"custom.cf_source": "sales-agent",
"contacts": [{
"name": c["name"],
"title": c.get("title"),
"emails": [{"email": c["email"]}] if c.get("email") else []
} for c in enriched_data.get("contacts", [])]
}
result = close_client.create_lead(lead_data)
return result["id"]
- •
Make sure you have these custom fields in Close:
- •
cf_tier(choices: Gold, Silver, Bronze) - •
cf_source(choices: sales-agent, inbound, referral)
- •
- •
Rate limit: 100 requests per 10 seconds. Add
asyncio.sleep(0.1)between requests for bulk imports. </example_session>