This is a public API and requires an API Key. You can get your API Key from inside your Zyntro Account under Me > API Keys

Request Endpoint: https://app.zyntrohq.com/apis/public/crm/fetchContact.php

Request Payload: 

{
    "api_key": "your_zyntro_api_key",
    "org_id": "your_zyntro_org_id",
    "brand_id": "your_brand_id",
    "member_id": "member_id_of_the_member_making_the_request",
    "contact_id": "contact_id of the contact",
    "include_notes":"boolean, 0 or 1, optional, defaults to 0",
    "include_signals": "boolean, 0 or 1, optional, defaults to 0",
    "include_profile": "boolean, 0 or 1, optional, defaults to 0",
    "include_entity": "boolean, 0 or 1, optional, defaults to 0"
}

Response (JSON): 

{
    "status": "success",
    "data": {
        "contact": {
            "contact_name": "Sersi Lannister",
            "contact_email": "[email protected]",
            "contact_phone": null,
            "contact_address": null,
            "contact_city": "Miami",
            "contact_state": null,
            "contact_zip": null,
            "contact_country": "United States",
            "contact_country_code": "US",
            "contact_timezone": "America\/New_York",
            "contact_source": "Discover Your Business's Automation Potential",
            "contact_role_label": "Decision Maker",
            "contact_salutation": null,
            "contact_first_name": "Sersi",
            "contact_last_name": "Lannister",
            "contact_custom_fields": {
                "cf_company_size_tier": "solopreneur",
                "cf_top_challenges_faced": "Struggling with time constraints, inefficient lead follow-up, managing too many separate tools, and consistently creating content.",
                "cf_primary_business_goal": "lead_generation",
                "cf_zyntro_account_status": "lead_prospect",
                "cf_specific_industry_vertical": "coaching_consulting",
                "cf_preferred_communication_style": "direct",
                "cf_attitude_towards_ai_automation": "pragmatist",
                "cf_current_business_tech_challenges": [
                    "time_constraints",
                    "poor_lead_followup",
                    "tool_sprawl",
                    "content_creation_struggle"
                ],
                "cf_primary_job_function_responsibility": "owner_founder_ceo",
                "cf_zyntro_solutions_of_primary_interest": [
                    "lead_gen_nurture",
                    "autonomous_crm",
                    "ai_content"
                ]
            },
            "contact_sms_optout": "0",
            "contact_email_optout": "0",
            "contact_auto_engage": "1",
            "contact_dnc": "0",
            "contact_email_verified": "1",
            "contact_phone_verified": "0",
            "contact_is_test": "0",
            "contact_owner": "f2470c7f-60b1-4491-b117-8ba0e3e2a53b",
            "contact_stage": "51",
            "contact_status": "Active",
            "contact_date_created": "2025-07-17 07:27:16",
            "contact_date_updated": "2025-07-17 07:46:06",
            "contact_entity": []
        },
        "entity": {
            "entity_name": "Lannister Clan",
            "entity_label": "Consultancy",
            "entity_location": "Miami, United States",
            "entity_website": "https:\/\/lannisterclan.com",
            "entity_tags": "[\"Time-conscious\", \"Lead Generation Focus\", \"High-Value Time\"]",
            "entity_socials": [],
            "entity_custom_fields": {
                "cf_company_size_tier": "solopreneur",
                "cf_primary_business_goal": "lead_generation",
                "cf_zyntro_account_status": "lead_prospect",
                "cf_specific_industry_vertical": "coaching_consulting",
                "cf_current_business_tech_challenges": [
                    "time_constraints",
                    "poor_lead_followup",
                    "tool_sprawl",
                    "content_creation_struggle"
                ],
                "cf_zyntro_solutions_of_primary_interest": [
                    "lead_gen_nurture",
                    "autonomous_crm",
                    "ai_content"
                ]
            }
        },
        "notes": [
            {
                "note_date_created": "2025-07-17 07:46:06",
                "note_content": "Inline notes",
                "note_maker": "f2470c7f-60b1-4491-b117-8ba0e3e2a53b"
            }
        ],
        "contact_profile": {
            "profile_date_created": "2025-07-17 07:46:06",
            "profile_maker": "System",
            "profile_source": "form_completion",
            "profile_content": [
                {"nodes":"...array of objects...."}
            ]
        },
        "signals": {
            "signal": "signal_key",
            "signal_source": "form_completion",
            "signal_category": "transition_rule",
            "signal_timestamp": "2025-07-17 07:46:06",
            "signal_payload": {
                "data": "mixed array of objects"
            },
            "signal_status": "pending"
        }
    }
}

Any field with a cf_* format is a custom field and is specific to your organization and brand in Zyntro.

Fields returning mixed arrays/objects are too fluid to define and are often formatted by Zyntro's internal AI systems. Hence, if you are not sure how to process an incoming response in terms of the shape then please run a test API call with all boolean fields set to 1 (true) to see the complete shape.