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Adversus

Dial, manage, and close from one place

Outreach
For AI agents
APICapable readiness
About

What is Adversus

Adversus combines a browser-based auto dialer with a built-in CRM, letting outbound teams run predictive, progressive, or manual calling campaigns without switching between tools. It's aimed at SDR and BDR teams, RevOps operators, and contact center managers at SMBs and mid-market companies running high-volume call operations. The standout capability is the Journey module, which lets teams build automated call-flow workflows with triggers and scheduling logic — moving leads through sequences without manual intervention. AI is applied to sales optimization and performance tracking, with custom dashboards and real-time agent monitoring rounding out the ops layer. Where it falls short is native third-party CRM integration — teams already running HubSpot or Salesforce as their system of record will need to rely on the API rather than a native connector.

OutreachAI Sales OpsCRM
Capabilities

Key features

Phone dialer

outbound calling with click-to-call and tracking

AI capabilities

call transcription + summary

Workflow

multi-step sequences, email + LinkedIn + phone, event-driven triggers

Outbound webhooks

event-driven integrations

Our verdict

Vanderbuild take

Adversus is a focused phone dialer and CRM built for outbound-heavy teams — SDRs, BDRs, and the RevOps operators who support them — and it does that job without requiring a separate dialer and a separate CRM stitched together. On the agentic readiness front, the API is available and the architecture is capable enough that you can wrap it into your own orchestration layer or MCP setup when you need programmatic control over call flows and lead routing. At €169/user/month on annual billing, it's affordable for small teams, though seat-based pricing adds up quickly once you're staffing a full contact center floor. The honest gap here is native CRM integrations — if your team lives in Salesforce or HubSpot, you're building that bridge yourself via API, which adds implementation overhead that not every growth-stage team has bandwidth for.

Mateusz Sekta
Founder, vanderbuild
Learn more

Our Resources

The wedge

Agentic stack profile

API
REST

Programmatic access available.

REST API — straightforward to call from any agent or workflow tool. Rate limits and auth vary by plan.

API docs →
Agentic readiness
Capable

Solid API access — wraps cleanly for agent use.

Solid REST or SDK access. No MCP server yet, but easy to wrap in custom agent tooling. Most modern SaaS tools land here.

Stack role
Sequencer · CRM

Where this tool slots into an agentic pipeline.

Plays the role of Sequencer + CRM in an agentic pipeline. Use it to send and track multi-step outbound cadences across channels; be the system of record for contacts, deals, and pipeline.

Compare

Adversus alternatives

Tools that solve a similar problem — compared at a glance.

Adversus(this tool)
Pricing
Seat-based
Budget
$$
Best for
SDR / BDR, RevOps
Readiness
Capable
API
REST
CallHippo
Pricing
Freemium
Budget
$
Best for
SDR / BDR, Account Executive
Readiness
Capable
API
REST
CloudTalk
Pricing
Seat-based
Budget
$
Best for
SDR / BDR
Readiness
Capable
API
REST
Answers

Frequently asked questions

Does Adversus have a public API?

Yes — Adversus ships a REST API. Docs: https://solutions.adversus.io/api.

How much does Adversus cost?

Adversus: pricing is seat-based, expect mid tier ($$) spend. Full pricing page: https://www.adversus.io/pricing.

Who is Adversus best for?

Adversus is built for SDR / BDR, RevOps. Fits SMB (1-50), Mid-market (50-500)-sized teams.

How well does Adversus fit an agentic sales stack?

Tier: Capable. Solid public API, no MCP yet — straightforward to wrap in your own agent tooling.