Glasser

Apollo vs ZoomInfo: choose discovery and enrichment for your sales workflow

What can Apollo and ZoomInfo do?

Limits & data comparison

Compare by
Apollo
Glasser endpoints
ZoomInfo
Glasser endpoints
Limits

People Search: 10 people/page.

Match: one person/call. Direct rate limits vary by endpoint, plan and time window.

People Finder: up to 25 rows/page.

Enrichment: up to 5 contacts/call. Direct API default: 25 requests/second.

Fields & data

Search omits emails and phones.

Match adds available business contact details and match confidence.

Search shows identity, job and contact-availability flags.

Enrichment adds available contact channels and company context.

Execution & reliability

Synchronous search and match; 20-second Run timeout.

Unmatched person is free; require_email makes missing email a free miss.

Synchronous search/enrichment; 25-second Run timeout.

Partial matched records can be billed without contact details.

Access & scope

A low-confidence match may still be charged.

Review identity and employer before using contact details.

Glasser data endpoints do not include ZoomInfo seats, CRM orchestration or intent packages.

Check each returned identity.

Apollo vs ZoomInfo pricing

Apollo

Paid plan starts at

$65/ seat / month

Basic · billed monthly

Commitment
$65 / seat, billed monthly
Included
2,500 credits / seat / month
Person enrichment
1 credit for demographics / email
Free tier
Available; excluded from paid example

ZoomInfo

Top-ups start at

$20/ top-up

GTM AI · prepaid balance

Subscription
$0 · no seat fee
Data credits
$0.45 / credit at the base tier
100-credit purchase
$45 before promotions
Credit expiry
12 months

Task-based cost example

100 Apollo enrichments + 100 ZoomInfo records · no free credits or promotions

Monthly usageDirect purchaseGlasser usage
Apollo: 100 person enrichments, no phone reveal$65.001 Basic seat, monthly billing · 100 of 2,500 credits used$1.98100 successful matches × $0.01975
ZoomInfo: 100 billable contact records$45.00100 data credits × $0.45 · no signup credit or launch discount$49.50100 billable contact records × $0.495
Total for this paid setup$110.00$51.48

Inputs and outputs

Apollo

  1. InputLinkedIn URL or name + employer domain
  2. ProcessMatch one person
  3. OutputPerson, employer and available business email

ZoomInfo

  1. InputNames and employers or ZoomInfo person IDs
  2. ProcessEnrich a contact batch
  3. OutputMatched contact records with available channels

Still unsure? Choose based on your task

Why use Apollo and ZoomInfo through Glasser?

One API Key

Use one key for both listed providers.

One Balance

Fund supported endpoint usage from one shared balance.

Pay as You Go

Pay per use, with no Glasser subscription.

Agent-Ready Integration

Connect your agent via Skill, MCP or CLI.

Questions before you choose

Does a successful enrichment guarantee a usable email or phone?

No. Apollo can return uncertain matches; ZoomInfo can bill partial records without contact details. Inspect identity and available channels, and use Apollo require_email when an email is essential.

When should I choose Apollo over ZoomInfo?

Use Apollo People Search to find candidates, then match selected identities when you need business email. Use ZoomInfo Contact Enrichment for known people and inspect the matched person, employer and available contact channels.

Can I use Apollo and ZoomInfo together in one AI agent?

Yes, for the listed Apollo and ZoomInfo operations. One Glasser key and balance can access both; your agent still needs to choose and sequence the tools.

Can my agent automatically choose the right provider?

Give the agent explicit rules based on the task, required fields and budget. Apollo: Finding people by role and employer, then enriching a shortlist for outreach. ZoomInfo: Filtering target accounts and enriching known contacts with organizational context. Tool routing is configured in your agent; an API key alone does not decide.

How do I control API spending through Glasser?

Inspect the current endpoint price before running it. Limit returned rows and batch sizes, deduplicate inputs and start with a small sample. Give your agent a spending ceiling and review Run charges; a prompt instruction is not a server-enforced budget cap. Separately connected services bill separately.

Can I use Glasser with Claude Code, Codex and ChatGPT?

Use the Glasser Skill in an agent that can follow skill instructions, or configure the supported MCP connection in your client. CLI access is also available. Client setup and tool permissions still apply; the prompt above starts with the listed Glasser operations.

Get the data you need with Glasser.