Apollo to Smartlead Integration with Make.com (2026)
The cleanest current Apollo → Smartlead architecture is Apollo → Make.com → filtering/deduplication → Smartlead API. For new Apollo contacts, Make provides a Watch New Contacts trigger, so you do not need to invent a sequence webhook that Apollo’s public documentation does not document. For list-based backfills or more controlled synchronization, use Apollo’s documented contact/search APIs on a schedule. Make then batches the qualifying records into Smartlead’s campaign leads endpoint, which currently accepts up to 400 leads per request.
When an Apollo to Smartlead automation actually makes sense
Apollo and Smartlead solve different parts of outbound. Apollo can supply and manage prospect data, while Smartlead is built around email outreach and campaign execution. Make sits between them when you want your own rules for what crosses that boundary.
Prospect data and sales intelligence
Apollo’s current API covers searching, enriching and managing contacts, accounts, sequences and related sales data. It is the upstream system in this architecture.
Outbound campaign execution
Smartlead provides campaign, lead, sending-account, deliverability and webhook capabilities for outbound email operations.
Orchestration and transformation
Make gives you filters, routers, aggregators, data stores, API calls and error handling between the source and destination.
A direct export may be enough
If you only move occasional lists from Apollo into Smartlead and do not need transformation or automation, a middleware layer may add unnecessary complexity.
The commercial use case
The value of this page is not “automation for automation’s sake.” It is showing an operator how to remove repetitive list movement while retaining control over qualification, suppression, routing, deduplication and campaign assignment.
The current Apollo → Make.com → Smartlead architecture
There are two sensible implementations today. Which one you choose depends on the event you actually have available in Apollo.
Recommended event-driven path
Scheduled synchronization path
Why the article uses both
New-contact automation is cleaner with Make’s Apollo trigger. Backfills, periodic reconciliation and custom search criteria are better candidates for a scheduled Apollo API call. Presenting both makes this guide useful to more than one type of Apollo user.
Option A: use Make’s Apollo trigger for new contacts
Make’s current Apollo app exposes Watch New Contacts and Watch Updated Contacts, along with contact search/listing and an arbitrary API-call module. That means the first version of this workflow should use Make’s maintained Apollo integration rather than immediately dropping to custom HTTP.
Important correction
The old version of this article claimed that a general Apollo “contact added to sequence” webhook was required. Apollo’s current public API documentation documents enrichment webhooks and sequence-management APIs, but does not document a general event subscription for that exact sequence-enrollment event. Do not build a workflow around an undocumented webhook.
Use Watch New Contacts when
The operational event you care about is that a prospect has become an Apollo contact and the subsequent filters can be evaluated inside Make.
Use Watch Updated Contacts when
The lead already exists in Apollo and an update to its record is what should trigger downstream automation.
Use API search when
You need to select contacts by Apollo labels, stages, search criteria or a controlled synchronization window rather than simply reacting to newly created contacts.
Use both when necessary
Use the trigger for day-to-day ingestion and a scheduled reconciliation process for backfills or records that should never be missed.
Recommended Make module sequence
Apollo — Watch New Contacts
Connect Apollo using an API key and configure the trigger for the contact stream you actually want to process.
Filter qualification criteria
Check email availability/status, job title, geography, company characteristics, contact stage, labels or your own business rules before the lead reaches Smartlead.
Data Store — idempotency check
Store the Apollo contact ID or another stable source identifier so retries do not unintentionally create another outbound path for the same record.
Array Aggregator
Combine qualifying contacts into a batch before the Smartlead HTTP request instead of making one API call for every person.
HTTP — Add Leads to Smartlead campaign
Send the resulting array to Smartlead’s campaign leads endpoint using the current documented JSON structure.
Option B: scheduled Apollo API synchronization
Scheduled synchronization is still valuable. It is simply not the only architecture. Use it when you need to reconcile a saved contact population, backfill old records, or query Apollo according to specific search criteria.
Saved contacts vs net-new people
Apollo’s current API distinguishes between Search for Contacts and People API Search. Contact search works with people already saved as contacts in your Apollo account. People API Search searches Apollo’s broader prospect database and does not itself return email addresses or phone numbers; enrichment is required when those fields are needed.
| Need | Apollo endpoint / Make approach | Important point |
|---|---|---|
| Saved Apollo contacts | Search for Contacts / Make contact modules | Good for controlled synchronization |
| New prospects from Apollo database | People API Search | Email/phone enrichment may be a separate step |
| Contact event | Make Watch New Contacts | Best for ongoing event-driven flow |
| Periodic reconciliation | Make scheduler + Apollo API | Useful as a backstop or controlled batch process |
Do not hard-code Apollo’s rate limits
Apollo’s current API documentation says limits depend on both the plan and endpoint, and that limits are enforced per team and separately by endpoint. Apollo publishes plan-level limits but also notes that certain search and enrichment endpoints have different ceilings.
That means the correct implementation is to check the current endpoint limits for your account, not to embed a single “Apollo allows X requests per minute” number into your Make scenario.
API design rule
If you run several Apollo automations under the same team, remember that Apollo’s published limits are team-level rather than independent allowances for every API key. Splitting requests across keys does not magically create separate team capacity.
Build the Apollo to Smartlead workflow step by step
Step 1 — Define the handoff rule
Decide exactly what makes a contact eligible for Smartlead before connecting the API. Examples include job function, seniority, country, company size, email status, Apollo contact stage, label, account ownership or a specific campaign segment.
This matters because the integration is easiest to maintain when Apollo determines who belongs in the prospect universe and Make determines who is allowed to cross into Smartlead.
Step 2 — Connect Apollo to Make
In Make, add the Apollo application and create the connection with your Apollo API key. The current Make Apollo documentation lists Watch New Contacts, Watch Updated Contacts, contact actions/searches, and a generic API-call module.
Build the scenario in Make.com →Step 3 — Apply qualification filters
Filter before touching Smartlead. Typical checks include:
- email exists and meets your own quality criteria;
- contact is in the intended segment or stage;
- company matches your target market;
- the prospect is not already suppressed by your business rules;
- the destination Smartlead campaign is known and active for the intended use.
Step 4 — Build idempotency into the workflow
Smartlead has its own suppression and duplicate-handling controls, but your integration should still have a source-side memory. Make’s Data Store can function as a lightweight database between scenario runs. Store a stable Apollo contact ID, email and destination campaign ID.
Suggested Data Store keyapollo_contact_id + ":" + smartlead_campaign_idStore:
- Apollo contact ID
- Email
- Smartlead campaign ID
- Processed timestamp
- Processing status
- Smartlead response / error summaryThis lets you distinguish a genuine new lead from a retry, replay or duplicate trigger. It also makes troubleshooting far easier than relying only on the destination platform.
Step 5 — Aggregate leads
Do not automatically create one Smartlead API request for every contact. Smartlead’s current API accepts up to 400 leads per campaign request. Build the scenario so eligible contacts can be aggregated into appropriately sized batches.
Step 6 — Send the batch to Smartlead
Smartlead’s current documented endpoint is:
POST
https://server.smartlead.ai/api/v1/campaigns/{campaign_id}/leads?api_key=YOUR_API_KEY
Smartlead documents API-key authentication through the query parameter and requires
email for each lead object. Additional fields include
first name, last name, company name, phone number, website, location,
LinkedIn profile, company URL and custom fields.
Deduplication, validation and suppression
This is where the middleware layer earns its place. A direct import can move data; a properly designed Make scenario can enforce the rules around that data before it enters an outbound campaign.
| Check | What to do in Make | Why it matters |
|---|---|---|
| Email present | Filter records without a usable email | Avoid useless campaign records |
| Email normalization | Trim whitespace and apply your own consistent comparison rule | Improves duplicate detection |
| Apollo contact ID | Check Make Data Store | Stops repeated source processing |
| Destination campaign | Map by segment or routing rule | Prevents sending the right lead to the wrong campaign |
| Suppression | Respect Smartlead block/unsubscribe controls and your own suppression list | Never bypass suppression casually |
Do not bypass suppression just to “make the import work”
Smartlead’s API exposes settings that can ignore block lists, unsubscribes, community bounce lists or duplicate protections. Those options exist for specific controlled cases; they should not be turned on merely to eliminate import errors.
Smartlead API injection: the current payload
Smartlead’s current API documentation uses a lead_list array.
The maximum is 400 leads per request. The documented endpoint also supports
settings controlling global block-list, unsubscribe, community-bounce and cross-campaign
duplicate behavior.
{
"lead_list": [
{
"email": "{{email}}",
"first_name": "{{first_name}}",
"last_name": "{{last_name}}",
"company_name": "{{company_name}}",
"phone_number": "{{phone_number}}",
"website": "{{website}}",
"location": "{{location}}",
"linkedin_profile": "{{linkedin_profile}}",
"company_url": "{{company_url}}",
"custom_fields": {
"job_title": "{{job_title}}",
"industry": "{{industry}}"
}
}
],
"settings": {
"ignore_global_block_list": false,
"ignore_unsubscribe_list": false,
"ignore_community_bounce_list": false,
"ignore_duplicate_leads_in_other_campaign": false
}
}Keep the payload as close as possible to Smartlead’s current documentation. The earlier version of this article mixed in undocumented response-field claims and should not have presented those as guaranteed API behavior.
Authentication
Smartlead’s current documentation says API authentication uses an API key passed as
?api_key=YOUR_KEY. Do not copy examples using a fabricated
OAuth flow for this endpoint.
Batching
If 240 contacts qualify, send one batch rather than 240 individual HTTP requests. If 900 qualify, split them into multiple batches within the documented maximum. This reduces request overhead and makes rate limiting easier to control.
Make.com credits: build for the actual cost model
Make’s terminology changed: credits replaced operations as the billing unit. Operations still describe activities inside scenarios, but credits are what Make uses for billing.
| Make behavior | Current documented credit behavior | Impact on this workflow |
|---|---|---|
| Trigger | Generally 1 credit per trigger run for non-AI apps | Frequent schedules can consume credits even when nothing new is found |
| Search | Generally 1 credit per search run | Multiple returned bundles do not automatically mean one credit per returned bundle |
| Aggregator | 1 credit per aggregation | Useful for building a Smartlead batch |
| Iterator | 1 credit for the iterator plus downstream bundle processing | Avoid unnecessary per-contact action chains |
| Router / filters | No credit cost according to Make’s current documentation | Use them to keep routing logic explicit |
The optimization that matters
The expensive design is not “Make.” The expensive design is unnecessary repeated downstream processing. Use filters early, aggregate qualifying records, and send Smartlead in batches instead of performing one complete HTTP chain per contact.
Current Make pricing
Free
1,000 credits/month. 15-minute minimum interval between scheduled runs.
Core
10,000 credits/month at the published price, with scheduling down to the minute.
Pro
10,000 credits/month with additional execution and control features.
Make pricing and included credits can change; verify the current plan before purchase.
API limits, retries and failure handling
Apollo
Apollo’s current rate-limit documentation says limits are determined by both plan and endpoint. Limits are measured per team, separately per endpoint, and across applicable minute, hour and day windows. Search and enrichment endpoints can have different limits.
Do not build a scenario around an old fixed number copied from a blog post. Read the current Apollo plan limits and use the API’s documented usage/rate-limit information when tuning the workflow.
Smartlead
Smartlead’s API documentation currently documents HTTP 429 for rate-limit violations and advises waiting at least two seconds before retrying, with exponential backoff for repeated failures. Its documentation also notes that rate limits can vary by subscription plan, so treat published thresholds as implementation guidance rather than an immortal hard-coded guarantee.
Recommended Make error path
Put the Smartlead HTTP module behind an error handler. On 429, retry with controlled backoff. On authentication errors, stop and alert rather than repeatedly retrying a bad credential. On validation errors, capture the affected payload for diagnosis.
Build an observable workflow
- Record the Apollo contact ID before or during processing.
- Record the destination Smartlead campaign ID.
- Store processing status and timestamp.
- Log failed Smartlead responses.
- Do not mark a contact as successfully delivered until the downstream request has actually succeeded.
Deliverability: the automation is only half the system
Moving leads from Apollo to Smartlead does not make a campaign deliverable. Sender-domain configuration, authentication, mailbox quality, campaign settings, suppression controls, sending patterns and message quality all remain separate operational concerns.
Smartlead protection features
Smartlead currently documents warm-up pools, bounce protection, domain-level rate limiting, unsubscribe handling and campaign webhooks. These are useful controls, but none guarantees inbox placement.
Close the feedback loop
Smartlead’s webhook system can send external events such as replies, bounces, unsubscribes, clicks and campaign-state events. Feed the useful events back into your CRM or automation layer rather than treating the import as a one-way pipeline.
Compliance still belongs to the operator
Automated outbound does not remove applicable privacy, marketing, consent, opt-out or provider-policy obligations. Confirm the rules that apply to the recipients and jurisdictions you target before scaling campaigns.
Current Apollo, Make.com and Smartlead pricing
Pricing changes, so this table is intentionally labeled as a current snapshot rather than a permanent promise.
| Platform | Current published entry point | What matters to this workflow |
|---|---|---|
| Apollo | $0 Free; Basic $49/seat/month billed annually | API access exists across Apollo plans, but specific endpoint eligibility, credits and rate limits vary by plan. |
| Make.com | Free; Core $12/month for 10k credits | Credits, trigger frequency, bundle processing and batching determine actual automation cost. |
| Smartlead | Base $39/month | Current plans scale from 6K sends/month on Base to much higher monthly send allowances on higher tiers. |
Do not optimize on sticker price alone
The real commercial calculation is the complete workflow: Apollo data requirements, Make credit consumption, Smartlead sending volume, verification needs, mailbox infrastructure and the amount of manual work removed.
Which Apollo to Smartlead architecture should you use?
| Situation | Recommended architecture | Why |
|---|---|---|
| New Apollo contacts should enter Smartlead automatically | Apollo Watch New Contacts → Make → Smartlead | Simple event-driven design |
| Need to backfill an existing Apollo list | Scheduled Apollo search → Make → Smartlead | Controlled batch synchronization |
| Need custom qualification rules | Apollo → Make filters → Smartlead | Business logic stays visible before sending |
| Need several Smartlead destinations | Apollo → Make Router → multiple campaigns | Centralizes campaign-routing logic |
| Occasional manual list movement | Manual CSV/API import | Automation may not justify its maintenance overhead |
The key distinction is not whether Make is “better” than a native connector. It is whether you need a policy layer between your source data and your sending system.
Build the pipeline without the CSV loop
Start with Apollo as the prospect-data layer, Make as the routing and transformation layer, and Smartlead as the campaign execution layer. Add complexity only where the workflow needs it.
Frequently asked questions
Can Apollo connect to Smartlead with Make.com?
Yes. A practical architecture is Apollo as the source, Make.com as the orchestration layer, and Smartlead as the campaign destination. Make currently provides Apollo contact triggers and modules, while Smartlead exposes a documented campaign leads API.
Do I need to poll Apollo every few minutes?
Not necessarily. Make’s current Apollo integration includes Watch New Contacts and Watch Updated Contacts triggers. Scheduled API synchronization is still useful for backfills, reconciliation and workflows based on specific search criteria.
Does Apollo have a webhook for “contact added to sequence”?
Apollo’s current public API documentation does not document a general-purpose outbound webhook event for that exact sequence-enrollment event. Apollo does document webhook delivery for enrichment workflows. For automation based on contact creation, use Make’s Apollo trigger; for sequence-specific synchronization, use the currently documented Apollo API capabilities rather than an assumed webhook.
How many leads can Smartlead accept in one API call?
Smartlead’s current API documentation states a maximum of 400 leads per
POST /campaigns/{campaign_id}/leads request.
Does Smartlead require OAuth for the leads API?
Smartlead’s current API documentation specifies API-key authentication through
the api_key query parameter for this endpoint.
Should I send one Smartlead API request per lead?
No. When your workflow produces multiple qualifying leads, aggregate them into batches and stay within Smartlead’s documented request-size limit. This reduces request overhead and makes rate-limit management simpler.
Can Make prevent duplicate Apollo leads?
Yes. A Make Data Store can retain processed Apollo contact IDs and destination campaign information. You should still respect Smartlead’s own duplicate, unsubscribe and suppression controls.
Does Apollo’s Free plan have API access?
Apollo currently lists API Access among its plan features, while individual API endpoints can have separate eligibility requirements. Apollo’s current People API documentation, for example, requires a work-email-registered account for free access and notes additional eligibility conditions.
What are Smartlead’s current plans?
Smartlead currently lists Base from $39/month, Pro from $94/month, Unlimited Smart from $174/month and Unlimited Prime from $379/month. Check the current pricing page before purchasing because plan details can change.
Is Make.com automatically cheaper than Zapier for Apollo and Smartlead?
There is no honest universal answer. Make now bills in credits and actual usage depends on triggers, searches, bundles, aggregators, iterators and actions. Compare the actual scenario architecture rather than relying on a generic “Make is cheaper” claim.
Related CreatorOpsMatrix guides
Official documentation used for this guide
API behavior, pricing and product interfaces change. These are the primary references used when updating this article.
Current API overview, authentication, endpoint categories and usage guidance.
Current prospect-search endpoint and enrichment requirements.
Current saved-contact search endpoint and available filters.
Current plan and endpoint-specific API limits.
Current Apollo modules including Watch New Contacts and Watch Updated Contacts.
Current credit model and billing terminology.
Current trigger, search, action, iterator, aggregator, router and filter behavior.
Current published Make plans and included credits.
Current campaign-lead endpoint, authentication, payload fields and API errors.
Current Base, Pro, Unlimited Smart and Unlimited Prime pricing.
Current event types and webhook delivery behavior.
Smartlead’s current affiliate/partner information.