Real-time
Two-way sync
Changes in Affinity or Firebase instantly reflect in both systems. No stale data, no manual imports.
CRM ⇄ Database
Affinity to Firebase integration — real-time, two-way sync
Keep Affinity and Firebase in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
- SOC 2 and 6 other compliance frameworks
- POC with real engineers in minutes
Adopted by fast-scaling companies moving mission-critical data in real time
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Why teams connect Affinity and Firebase
Treat Affinity like part of your database: its records live in Firebase as real tables, and writes in either place sync to the other in seconds.
Product and engineering teams constantly need CRM data, and the CRM API is a poor way to get it: rate limits, pagination, custom objects, and integration code that breaks when an admin renames a field. What they actually want is the data in Firebase, where it can be queried and joined like everything else.
Stacksync mirrors Lists, List Entries, Persons, Organizations from Affinity into Subcollections, Realtime Database Nodes, Authentication Users, Cloud Storage Objects in Firebase with real-time, bi-directional sync. Read CRM records with plain queries; write updates from your application and they appear in Affinity with validation intact. Go-to-market teams keep working in the CRM, engineers keep working in the database, and neither has to think about the other.
Common use cases
- Keep introductions and relationship data from Affinity aligned with outreach tools used by the team.
- Sync notes and reminders into project or task systems used outside the deal team.
- Combine Firebase Authentication users with billing and CRM records into one customer table.
- Replace one-off Cloud Functions export code with managed, continuous sync.
Internal tools without API code
Back-office apps read and write the synced tables; Stacksync handles the Affinity API, limits, and retries.
Trigger workflows from CRM changes
Field and stage updates in Affinity arrive as row changes in Firebase, ready to drive jobs and notifications.
Query the CRM like a database
Accounts, contacts, and custom objects from Affinity become tables in Firebase you can join with application data directly.
What you can sync between Affinity and Firebase
Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.
| Affinity objects | Firebase objects | |
|---|---|---|
| List Entries The membership of a person, organization, or opportunity on a list, carrying its list-specific fields. | Authentication Users User accounts read into CRMs and warehouses for customer records. | |
| Persons Contact records enriched with relationship intelligence, synced with CRMs and outreach tools. | Cloud Storage Objects Files referenced from documents; usually synced as metadata plus URLs. | |
| Organizations Company records matched to accounts in other systems by domain. | Cloud Functions Triggers Server-side hooks that fire on document changes and can push updates outward. | |
| Opportunities Deal records tracked on lists and synced with pipeline reporting. | Firestore Collections Top-level groupings of documents that a sync maps to tables or SaaS objects. | |
| Field Values Custom field data, either global or scoped to a list, mapped field-by-field in syncs. | Firestore Documents Schemaless JSON-like records, the primary unit synced to and from external systems. | |
| Notes Meeting and call notes synced for record-keeping in other systems. | Subcollections Nested collections under documents, typically flattened into related tables during sync. |
What ships with Affinity ⇄ Firebase
Connect Affinity and Firebase for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Affinity–Firebase connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Affinity or Firebase data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
At scale
Event queues
Handle millions of events per minute without losing a single Affinity or Firebase record.
Observability
Monitoring
Track your Affinity ⇄ Firebase sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Affinity and Firebase.
How the Affinity and Firebase connectors work
Affinity
- Integration surface
- REST API
- Authentication
- API key
- Change detection
- Webhook subscriptions for record events, supplemented by polling
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to the platform's published API rate limits
Firebase
- Integration surface
- REST and gRPC APIs, typically accessed through the Firebase Admin SDK
- Authentication
- Google service account credentials (IAM) for server-side access; Firebase Auth tokens for client contexts
- Change detection
- Real-time snapshot listeners on Firestore queries and Cloud Functions triggers on document changes
- Capabilities
- read · write
- Rate limits
- Subject to Firestore's documented operation quotas and per-document write throughput limits
How it works
How to connect Affinity to Firebase — three steps, no code
Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.
- 01
Connect your apps
Authenticate Affinity and Firebase with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Affinity
connected
Firebase
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Affinity and Firebase objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.
objects · Affinity ⇄ FirebaseCustomers 12,480Sales Orders 8,213Invoices 5,902Items 1,344 - 03
Map fields
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Affinity FirebaseCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Affinity and Firebase integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Affinity and Firebase: authenticate both systems, choose the objects to sync (such as Affinity's List Entries and Persons), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.
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Common patterns for Affinity and Firebase: Internal tools without API code; Trigger workflows from CRM changes; Query the CRM like a database. Back-office apps read and write the synced tables; Stacksync handles the Affinity API, limits, and retries.
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Affinity: REST API. Authentication: API key. Firebase: REST and gRPC APIs, typically accessed through the Firebase Admin SDK. Authentication: Google service account credentials (IAM) for server-side access; Firebase Auth tokens for client contexts. Stacksync manages authentication, retries, and rate limits on both sides.
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Affinity: The data model centers on lists: a person, organization, or opportunity gains list-specific field values only through its list entry, so syncs must address both the entity and the entry. Firebase: Firestore documents are schemaless and support nested maps and arrays, so syncs define field mappings per document path rather than from a fixed schema. Stacksync's field mapping accounts for these differences between Affinity and Firebase without custom code.
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Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means Affinity and Firebase records are not retained after a sync operation.
SECURITY
Security teams love Stacksync
As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.
SOC 2 type II
ISO 27001
HIPAA BAA
GDPR
CCPA
CSA STAR
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS
SSO & SCIM
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Alerts
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Secure connection options
Securely connects to your systems with:
Related integrations
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Affinity and Firebase.
Popular · 8 of 386
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Affinity ⇄ AWS Aurora PostgreSQL -
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Firebase ⇄ Vtiger CRM -
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No integrations match .
