Real-time
Two-way sync
Changes in Apollo.io or MongoDB instantly reflect in both systems. No stale data, no manual imports.
CRM ⇄ Database
Apollo.io to MongoDB integration — real-time, two-way sync
Keep Apollo.io and MongoDB 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
Case study
Migrated from Mulesoft
Case study
Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
Case study
Migrated from Fivetran
Case study
Migrated from Celigo
Why teams connect Apollo.io and MongoDB
Treat Apollo.io like part of your database: its records live in MongoDB 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 MongoDB, where it can be queried and joined like everything else.
Stacksync mirrors Contacts, Accounts, People (database records), Sequences from Apollo.io into Indexes, Views, Change streams, GridFS files in MongoDB with real-time, bi-directional sync. Read CRM records with plain queries; write updates from your application and they appear in Apollo.io 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
- Land sequence enrollment status and outcomes in a warehouse for outbound performance reporting.
- Deduplicate contacts across Apollo and the CRM by syncing on email as the match key.
- Replicate operational MongoDB data into a relational database, flattening nested documents into normalized tables for SQL reporting.
- Capture change stream events and propagate them to SaaS tools in near real time instead of running batch exports.
Internal tools without API code
Back-office apps read and write the synced tables; Stacksync handles the Apollo.io API, limits, and retries.
Trigger workflows from CRM changes
Field and stage updates in Apollo.io arrive as row changes in MongoDB, ready to drive jobs and notifications.
Query the CRM like a database
Accounts, contacts, and custom objects from Apollo.io become tables in MongoDB you can join with application data directly.
What you can sync between Apollo.io and MongoDB
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.
| Apollo.io objects | MongoDB objects | |
|---|---|---|
| Custom fields Account- and contact-level custom attributes mapped field-by-field in a sync. | Indexes Keep lookups by sync key fast on large collections. | |
| Contacts People saved to your Apollo account, synced with emails, phone numbers, and enrichment fields. | Views Read-only aggregation-defined sources for filtered sync datasets. | |
| Accounts Company records with firmographic attributes, matched to CRM accounts during sync. | Change streams The oplog-backed event feed that powers real-time change capture. | |
| People (database records) Prospects from Apollo's global database, pulled into downstream systems once enriched or saved. | GridFS files Chunked file storage whose metadata can be referenced by synced documents. | |
| Sequences Outreach cadences (emailer campaigns in the API); enrollment status is read to track which contacts are being worked. | Databases Logical groupings of collections that scope a sync connection. | |
| Deals (Opportunities) Pipeline records that can be read and written to keep Apollo aligned with the CRM of record. | Collections The table-like sync unit; each collection maps to a table or object in the paired system. |
What ships with Apollo.io ⇄ MongoDB
Connect Apollo.io and MongoDB for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–MongoDB connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Apollo.io or MongoDB 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 Apollo.io or MongoDB record.
Observability
Monitoring
Track your Apollo.io ⇄ MongoDB sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Apollo.io and MongoDB.
How the Apollo.io and MongoDB connectors work
Apollo.io
- Integration surface
- REST API
- Authentication
- API key (passed in request headers); master keys unlock account-wide endpoints
- Change detection
- Polling on updated-at timestamps; webhook callbacks exist only for delivering asynchronous enrichment results, not as a general change-event stream
- Capabilities
- read · write
- Rate limits
- Rate limits and enrichment credits vary by plan; bulk endpoints are throttled separately from single-record calls
MongoDB
- Integration surface
- MongoDB wire protocol via official drivers; Atlas additionally offers an administration REST API for cluster management
- Authentication
- Database credentials (username/password) or TLS/SSL X.509 certificate (.pem upload), entered individually or via a MongoDB connection string (SRV or standard); Stacksync IP allowlisting required
- Change detection
- MongoDB oplog and change streams (requires the database to run as a replica set — even single-node); Stacksync leverages these built-in tools to track changes in real time
- Capabilities
- read · write · CDC
How it works
How to connect Apollo.io to MongoDB — 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 Apollo.io and MongoDB with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Apollo.io
connected
MongoDB
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Apollo.io and MongoDB 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 · Apollo.io ⇄ MongoDBCustomers 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.
Apollo.io MongoDBCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Apollo.io and MongoDB integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Apollo.io and MongoDB: authenticate both systems, choose the objects to sync (such as Apollo.io's Custom fields and Contacts), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Common patterns for Apollo.io and MongoDB: 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 Apollo.io API, limits, and retries.
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Apollo.io: REST API. Authentication: API key (passed in request headers); master keys unlock account-wide endpoints. MongoDB: MongoDB wire protocol via official drivers; Atlas additionally offers an administration REST API for cluster management. Authentication: Database credentials (username/password) or TLS/SSL X.509 certificate (.pem upload), entered individually or via a MongoDB connection string (SRV or standard); Stacksync IP allowlisting required. Stacksync manages authentication, retries, and rate limits on both sides.
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Apollo.io: Enrichment endpoints consume plan credits, so sync jobs that trigger enrichment have a cost dimension beyond rate limits. MongoDB: Replica set configuration is required even for a single node — standalone MongoDB cannot be change-tracked. Stacksync's field mapping accounts for these differences between Apollo.io and MongoDB 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 Apollo.io and MongoDB records are not retained after a sync operation.
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Stacksync pricing is usage-based and starts at $1,000/month, including the managed Apollo.io and MongoDB connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Apollo.io–MongoDB integration in-house.
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 Apollo.io and MongoDB.
Popular · 8 of 386
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Apollo.io ⇄ MariaDB -
Apollo.io ⇄ SQL Server -
Apollo.io ⇄ Postgres Heroku -
Apollo.io ⇄ Airtable -
MongoDB ⇄ Freshsales -
MongoDB ⇄ Freshworks CRM -
MongoDB ⇄ Gladly -
MongoDB ⇄ Gorgias
No integrations match .
