Apollo.io MCP Server (Inferensys/apollo-io-mcp) is an MCP server listed on the M8ven Trust Index. It scores 60 out of 100, grade C. It declares 50 tools. No publisher has claimed this listing.

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C
Caution
60/100

Apollo.io MCP Server

A Model Context Protocol (MCP) server for the Apollo.io API, giving AI coding assistants direct access to Apollo.io's sales intelligence platform for prospecting, enrichment, CRM operations, and outreach.

→ Inferensys/apollo-io-mcp· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

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⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

Inferensys

Source: Glama

Is this your MCP?

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
⚠️
Known vulnerabilities in dependencies: 3 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
🔐
You'll be asked for 1 credential: APOLLO_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// tools this server exposes50 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

search_people
enrich_person
bulk_enrich_people
search_organizations
enrich_organization
get_organization
get_organization_job_postings
create_contact
update_contact
get_contact
search_contacts
delete_contact
bulk_create_contacts
bulk_update_contacts
create_account
update_account
search_accounts
search_sequences
add_contacts_to_sequence
update_sequence_status
search_outreach_emails
get_email_activities
list_email_accounts
list_fields
create_custom_field
list_custom_fields_deprecated
search_news_articles
get_api_usage_stats
list_labels
create_label
update_label
delete_label
list_contact_stages
list_account_stages
list_opportunity_stages
search_opportunities
get_opportunity
create_opportunity
update_opportunity
search_tasks
get_task
create_task
update_task
search_notes
create_note
delete_note
search_users
search_activities
search_phone_calls
health_check
// known CVEs in dependencies3 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.12.1GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.12.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.1GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
🔐 secretAPOLLO_API_KEY"": "your_key_here"
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

50/50 tools missing one or more hints — search_people (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); enrich_person (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); bulk_enrich_people (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +47 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool inputs are validated

Only 0/50 tool handlers declare input schemas (0%)

Declare an inputSchema with zod/joi/yup on every tool definition.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Tests exist

No test files found

Add tests that exercise each declared tool.

Production dependencies are patched

0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 6 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/inferensys/apollo-io-mcp?variant=verified)](https://m8ven.ai/mcp/inferensys/apollo-io-mcp)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: 646c1b5a0274054cf9cdd1e92e386ed3d1b2575b
code hash: 63aeac60b648cab63e224734d2b7ca69dcbd905d1b9ed6deba9b99d3916315da
view raw JSON →
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