TL;DR
- Warmly is the best Knock AI alternative in 2026 for B2B revenue teams that want person-level visitor identification, an AI Inbound Agent with Live Human Chat handoff, and a TAM Agent orchestrating outbound across email and LinkedIn from a single Context Graph.
- Teams replacing Knock Chat and Knock Agent specifically (rather than the full platform) usually compare Qualified for AI-led website chat and 11x for autonomous AI SDR outbound, both built around AI-driven conversation and qualification.
- For teams that mainly want a focused visitor ID layer or an outbound-first option without the chat surface, the shortlist usually narrows to RB2B, Leadfeeder, Apollo, and Lead Forensics, which sit at lower entry prices but cover narrower slices of what Knock AI does.
What are the best alternatives to Knock AI?
The best alternatives to Knock AI in 2026 are Warmly, Common Room, and 6sense.
Here's the full shortlist of 10, with what each one is best for and where pricing currently lands:
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Tool
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Best For
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Pricing
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Warmly
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B2B revenue teams that want a two-agent platform unifying inbound conversion and outbound orchestration on a shared Context Graph.
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Free plan; paid from $15,000/year.
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Common Room
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Revenue teams running product-led or community-led GTM that need signals from places most B2B platforms can't see.
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Paid from $1,700/month.
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6sense
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Enterprise revenue teams running mature ABM that need third-party intent aggregation and predictive readiness modeling.
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Free plan; paid pricing not public.
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Demandbase
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Enterprise marketers running named-account programs where programmatic advertising sits at the center of the GTM motion.
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Pricing not public.
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Qualified
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Salesforce-native teams that want AI conversational marketing on the website with deep Salesforce reporting.
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Pricing not public.
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11x
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Mid-market and enterprise teams that want an autonomous AI SDR running outbound prospecting and email, plus LinkedIn engagement at scale.
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Pricing not public.
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RB2B
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US-focused B2B teams that want person-level visitor identification routed straight to Slack at a low entry price.
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Free plan; paid from $79/month.
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Leadfeeder (Dealfront)
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EU teams that need GDPR-friendly company-level visitor identification synced to CRM.
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Free plan; Premium from €99/month.
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Apollo
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Teams that primarily need a B2B contact database with built-in sequences for outbound, not on-site engagement.
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Free plan; paid from $49/user/month (annual billing).
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Lead Forensics
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B2B marketing teams that want detailed campaign attribution alongside visitor identification, with native Salesforce integration.
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Pricing not public.
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What are the best multi-product GTM platform alternatives to Knock AI?
The closest replacements for Knock AI's full platform are tools that combine identification, scoring, and engagement under one roof.
These are the picks for teams that want to keep the consolidation Knock AI is built around:
#1: Warmly
Warmly is the best alternative to Knock AI in 2026 for B2B revenue teams that want a single platform handling visitor identification, AI chat with live rep handoff, outbound orchestration, and intent scoring in one place.
The platform is structured around two coordinating AI agents: an Inbound agent (AI chat, person-level ID, smart popups, and retargeting) and a TAM agent (ICP scoring + intent, web researching, buying committee mapping) sitting on top of a shared Context Graph that learns from every interaction.
Heads up: Warmly is our platform. My goal here is an honest comparison and not a one-sided pitch. If a different tool below fits your situation better, that's the recommendation we'd give you.
Let’s go over the features and capabilities that I think make our platform a reasonable alternative to Knock AI:
Person-level website visitor identification
Warmly identifies roughly 15% of website visitors at the person level (name, work email, job title, LinkedIn) and around 65% at the company level, with a sub-3-second pipeline running from pixel fire to enrichment to action.
Our platform goes beyond IP-to-company matching and resolves individuals with name, work email, job title, and LinkedIn profile.
And this is not where it stops: visitor data flows bidirectionally into HubSpot and Salesforce without manual exports, and every identified visitor gets enriched with firmographics, technographics, and third-party intent signals before reaching reps.
Inbound Agent: AI Chat with Live Human Chat handoff
The Inbound Agent runs an autonomous AI chat with full CRM and intent context loaded before the first message, then hands off to humans when the conversation needs one.
The AI starts by getting to know the visitor’s company, role, page history, and any prior touches, so visitors don't get cold "hi, how can I help you?" openers.
When a conversation needs a human, the handoff comes with the full transcript and context intact, so reps don't start cold.
Qualified visitors can book straight into rep calendars from inside the chat. No form, no SDR triage step, and no "someone will be in touch."
Our smart popups and personalized landing pages also run on that same identity layer:
- Smart popups are triggered by intent signals and are personalized to who's visiting your website to give them the right offer at the right moment.
- Personalized Landing Pages dynamically customize content based on who's visiting, including their company, role, industry, and behavior.
And for the visitors who visited but left, our retargeting follow-up engine triggers personalized email sequences, LinkedIn ad targeting, and nurture campaigns based on their behavior and intent signals.
TAM Agent: outbound orchestration with intent scoring
TAM Agent automates the off-site half of GTM, covering ICP tiering, buying committee identification, intent scoring, multi-vendor enrichment, and outbound orchestration from one configuration.
Here’s what that includes:
- AI ICP Tiering: Trains on your closed-won deals to score every account in your TAM with a transparent, tunable model (Tier 1, 2, 3, or Not ICP).
- Buying Committee Identification: Finds four named persona types (Champion, Decision-maker, Influencer, Approver) using LinkedIn data and org charts, with verified work emails attached.
- ML Intent Scoring: Combines first-party signals (web, chat, email) with third-party (Bombora, G2, job postings, technographics) into one transparent score you can tune.
- Dynamic Audiences and LinkedIn Ads sync: Auto-refreshing audiences push to LinkedIn Matched Audiences, HubSpot, and Outreach in real time as accounts enter or exit segments.
- Outbound modes: Route to reps based on territory and ownership, run autonomous AI SDR sequences, or use a hybrid where AI handles initial touches and reps step in once engagement happens.
The Context Graph: unified data and learning layer
The Context Graph is the data layer that ties both agents together.
It tracks what happened (signals), what you did (actions), why (reasoning), and what came of it (outcomes).
Your inbound and outbound work will work from the same scoring model instead of passing data between three vendors.
Every prospect touchpoint is logged in an activity ledger, which you’ll find is quite useful when a prospect is back in market after a few months of persuading stakeholders to provide them with a bigger budget.
All of this massive context also goes to the AI chatbot. The chatbot would be aware if a visitor visited your pricing page last week and a case study 2 months ago.
How is Warmly different from Knock AI?
The main difference between Warmly and Knock AI comes down to this:
- Warmly is built as two coordinating agents (Inbound for on-site, TAM for off-site) sitting on a shared Context Graph that is the unified data layer.
- Knock AI is built as a suite of modular products, including Reveal, Intent and Score, Enrich, Chat, Scheduling, Outreach, AI Agent, CRM, Routing, and Organic, with Slack-first workflows as a strong design choice that fits teams already running sales conversations through Slack.
What that means in practice is that Warmly's TAM Agent goes deeper on off-site orchestration, with ML-based ICP tiering trained on your closed-won deals, buying committee identification across four persona types, multi-vendor enrichment waterfalls, and direct LinkedIn Matched Audiences sync.
On the other hand, Knock AI's strength lies in its multi-channel chat surface (LinkedIn, WhatsApp, Slack, Telegram, iMessage, and website) and its AI Agent that runs custom qualification flows and books demos autonomously across those channels.
For teams running heavily on Slack as a sales workspace, Knock AI's Slack-native model is genuinely well-fit.
However, if your motion needs outbound orchestration alongside on-site conversion, with a unified data layer feeding both, Warmly's two-agent architecture covers more of that ground.
Warmly's pricing
Warmly's current plans are structured into three tiers plus a free entry point:
- Free: 500 de-anonymized company-level visitors per month, useful for proof-of-concept but not production.
- TAM: starts at $15,000/year. Includes first, second, and third-party signals, AI ICP Tiering, Buying Committee Identification, ML Intent Scoring, full enrichment (email, LinkedIn, phone), Dynamic Audiences, and CRM and LinkedIn Ads sync.
- Inbound: starts at $30,000/year. Includes the AI Inbound Agent, person-level website visitor de-anonymization, Warm Offers, Warm Experiences, real-time alerts, automated email follow-up, and lead routing.
- Full GTM: custom pricing. Unifies Inbound and TAM with the full Context Graph, full-funnel orchestration, real-time sync, SSO and SAML, and API plus MCP access.
Pros & Cons
✅ Identifies visitors at the person level globally, not just in the US.
✅ One platform covers on-site conversion (Inbound Agent) and off-site orchestration (TAM Agent).
✅ AI Chat hands off cleanly to live reps with full transcript, page history, and CRM context preserved.
✅ Bidirectional native integration with both HubSpot and Salesforce.
✅ Coldly database (220M-plus profiles) comes built in, removing the need for a separate ZoomInfo or Apollo seat.
✅ All paid-tier pricing is public.
❌ All paid tiers run on annual contracts with no monthly option.
#2: Common Room
Best for: Revenue teams running product-led or community-driven GTM that need to capture signals from places most B2B platforms can't see.
Similar to: Warmly, Knock AI.
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Common Room pulls buying signals from sources most B2B tools ignore, including community channels (Slack, Discord), GitHub, social, job changes, and the broader web, and turns them into a single buyer view across people and accounts.
What sets it apart from Knock AI is the breadth of upstream signal sources, particularly for teams whose pipeline starts somewhere other than the website.
Features
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- RoomieAI Capture: AI agent that auto-captures buying signals across product usage, web visits, social, GitHub, community activity, and job changes, then routes them to the right buyer view.
- Person360 identity resolution: AI-powered waterfall enrichment engine that unifies anonymous activity into known person and account profiles across multiple data surfaces.
- Custom signal definitions: Lets teams define their own intent signals using natural language descriptions or rule-based criteria.
- Workflow automation: Triggers Slack alerts, sequence enrollments, or CRM updates when signals cross defined thresholds.
Pricing
Common Room no longer offers a free plan. Three paid tiers:
- Starter: $1,700/month for up to 35,000 contacts and 2 seats, with unlimited workflows and ticketed support.
- Team: Custom pricing for up to 100,000 contacts and 5 seats.
- Enterprise: Custom pricing for up to 200,000 contacts and 10 seats with dedicated support.
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Pros & Cons
✅ Captures signals from community channels (Slack, Discord, GitHub) that most platforms structurally can't see.
✅ Custom signal builder gives teams flexibility for non-standard motions like PLG or developer-led GTM.
✅ Person-level identification spans multiple data surfaces, not just website traffic.
❌ Pricing starts from $1,700/month, which can be high for smaller teams.
#3: 6sense
Best for: Enterprise revenue teams running mature ABM that need multi-source intent aggregation, predictive readiness scoring, and built-in account-based advertising.
Similar to: Demandbase, Warmly.
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Built around third-party intent aggregation and predictive AI, 6sense is an enterprise Revenue AI platform aimed at organizations running structured ABM programs at scale.
Compared to Knock AI, 6sense fits enterprises that want to forecast account readiness rather than react to website behavior, with predictive modeling and multi-vendor intent aggregation as the core capabilities.
Features
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- Multi-source intent aggregation: Pulls signals from Bombora, G2, TrustRadius, and 6sense's proprietary data into one account-level score.
- Predictive readiness modeling: AI estimates each account's stage in the buying journey based on engagement and signal patterns.
- Conversational Email: AI agents that draft and send personalized email outreach using account context and active intent topics.
- Audience builder: Dynamic segmentation across firmographics, intent topics, engagement history, and CRM data.
Pricing
6sense has a free plan with 50 credits/month covering company and people search, sales alerts, and a Chrome extension.
If you need more, you can upgrade to one of 6sense’s plans:
- Sales Intelligence + Data Credits + Predictive AI, which combines enriched company and contact data with predictive AI models and Sales Copilot for advanced, AI-driven selling.
- Sales Intelligence + Data Credits, which adds scalable data acquisition and enrichment tools, without predictive AI.
- Sales Intelligence + Predictive AI, which is combining predictive analytics with Sales Copilot, without requiring data credit add-ons.
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Paid pricing isn't disclosed publicly.
Vendr lists the average 6sense contract value at around $123,711.
Pros & Cons
✅ Built-in B2B advertising orchestration tied directly to intent and account scoring.
✅ Long-running platform with mature deployment patterns and a deep partner ecosystem.
✅ Intent coverage is wider than single-source providers thanks to multi-vendor aggregation.
❌ One drawback of 6sense Revenue Marketing is inconsistency in data accuracy, particularly with intent signals and account identification, according to a G2 review, which is one reason why you might look for 6sense alternatives.
#4: Demandbase
Best for: Enterprise marketers running named-account programs where programmatic advertising sits at the center of the GTM motion.
Similar to: 6sense, Warmly.
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Demandbase brings together account intelligence, programmatic ad orchestration, and on-site personalization into one stack for named-account go-to-market.
The advertising-first orientation is the main divergence from Knock AI, with built-in DSP capabilities that go beyond what Knock AI currently includes.
Features
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- Account intelligence layer: Firmographics, technographics, and intent data on accounts you've named for ABM, sourced from Demandbase's own data plus partner feeds.
- Programmatic ad orchestration: Display advertising directed at specific accounts and buying groups across the open web, with attribution back to engagement.
- Agentbase: AI agents that surface buying-group signals and recommended next moves for sales reps.
- Site personalization: Dynamic content adapting headlines, hero sections, and CTAs based on which named account is on the page.
Pricing
Demandbase does not disclose pricing publicly; you'll need to contact their team for a quote. Their model includes a platform fee plus a flat user fee that scales with usage.
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Pros & Cons
✅ Programmatic advertising is part of the platform, not a separate ad-tech bolt-on.
✅ Combined sales and marketing surface for named-account programs running across both teams.
✅ Built for enterprise scale with mature governance, SSO, and reporting.
❌ Pricing is not disclosed.
What are the best AI chat and AI agent alternatives to Knock AI?
For Knock Chat and Knock Agent replacements specifically, the category to look at is AI-led conversation and qualification.
The tools below build their products around AI agents handling either inbound chat or autonomous outbound, rather than full-stack GTM consolidation:
#1: Qualified
Best for: Salesforce-native B2B teams that want AI conversational marketing on the website with deep Salesforce reporting and pipeline attribution.
Similar to: Knock Chat, Drift (legacy).
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Qualified runs as a Salesforce-native conversational marketing platform, with Piper as the AI SDR engaging visitors directly on the website.
Versus Knock AI, the Salesforce-only orientation is the obvious distinction, making Qualified a strong fit for organizations already running Salesforce as the system of record.
Features
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- Piper AI SDR: Engages website visitors and qualifies them autonomously through chat conversations.
- Live chat and routing: Routes high-value visitors to the right rep based on Salesforce account ownership.
- Meeting booking: Direct calendar booking integrated with rep availability rules.
- Salesforce-native reporting: Pipeline and attribution tracking lives inside Salesforce dashboards directly.
Pricing
Qualified does not disclose pricing publicly; you'll need to contact their team for a quote.
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Pros & Cons
✅ Tight Salesforce integration, with reporting that lives where Salesforce admins already work.
✅ Piper AI SDR is well-developed for autonomous qualification and meeting booking.
✅ Mature platform with a strong enterprise customer base.
❌ One G2 review mentions that routing rules have to be set up entirely within Qualified, instead of using what they already had configured in Salesforce.
#2: 11x
Best for: Mid-market and enterprise revenue teams that want to scale outbound prospecting and email-plus-LinkedIn engagement through an autonomous AI SDR rather than adding headcount.
Similar to: AiSDR, Artisan, Regie.ai.
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11x runs an AI SDR called Alice that autonomously handles outbound prospecting, personalized email and LinkedIn outreach, reply classification, and meeting booking, alongside an AI phone agent that learns from every call and adapts to your needs.
The model points at a different problem than Knock AI's: 11x is built to replace the outbound SDR motion rather than engage visitors who land on the site.
Features
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- Alice (AI SDR): Autonomous outbound across email and LinkedIn, including prospect research, personalized message drafting, follow-up sequencing, and direct calendar booking.
- AI phone agent: Julian responds within seconds to inbound leads, and aims to qualify prospects using your qualification criteria before routing them to your team.
- Reply handling and routing: AI classifies inbound replies and routes them based on intent and engagement signals.
- CRM and outbound integrations: Connects with HubSpot, Salesforce, and standard outbound stacks like Outreach and SalesLoft for sequence handoff.
💡 Pro tip: You can combine Warmly’s website visitor data with 11x’s AI SDR agents for a 24/7 meeting booking system that identifies your warmest leads and prospects them automatically.
Pricing
11x does not disclose pricing publicly; you'll need to contact their team for a quote.
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Pros & Cons
✅ Autonomous AI SDR removes manual lift from outbound prospecting and follow-up.
✅ Handles the full top-of-funnel motion (prospect identification through to meeting booking) without requiring an SDR headcount.
✅ Integrates with Warmly to help you identify your warmest leads and then book meetings automatically.
❌ Pricing is not disclosed.
What are the best specialized visitor ID and outbound alternatives to Knock AI?
When Knock AI is being used mostly for one capability (visitor identification, contact data, or outbound), a focused point tool might give you the same outcome at a lower entry price:
#1: RB2B
Best for: US-focused B2B teams that want person-level visitor identification piped straight to Slack at a low entry price.
Similar to: Common Room, Warmly.
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RB2B keeps the scope deliberately narrow: person-level identification of US-based website visitors, delivered to Slack, with no chat layer or AI agent attached.
Against Knock AI, that narrowness is the whole point; RB2B doesn't try to be a chat tool, AI agent, or outbound platform on top of identification.
Features
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- Person-level identification: Reveals individual US visitors with their LinkedIn profile, name, title, and company.
- Slack delivery: Visitor profiles arrive in a configured Slack channel in real-time, no separate dashboard required.
- ICP filtering: Set rules so only accounts matching ICP criteria trigger alerts to your team.
- Outbound stack integrations: Send identified visitors into sequences inside Outreach, SalesLoft, Apollo, and similar tools.
Pricing
RB2B has a free plan with 150 monthly resolution credits (Slack-only, no person-level on the free tier anymore). Paid plans:
- Starter: $79/month for 300 monthly resolutions plus LinkedIn URLs to Slack.
- Pro: From $140/month for 600 monthly resolutions, business emails, and integrations.
- Pro+: From $199/month for 600 resolutions plus increased coverage for company and contact-level identification.
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Pros & Cons
✅ Lowest entry price in the person-level category, making it accessible for early-stage teams.
✅ Demandbase partnership now adds global company-level coverage on top of the US person-level layer.
✅ Setup is genuinely fast: one pixel, one Slack connection, done.
❌ The paid versions are expensive for a solo founder, according to a G2 review.
#2: Leadfeeder (Dealfront)
Best for: EU teams that need GDPR-friendly company-level visitor identification connected to CRM, with basic intent enrichment.
Similar to: RB2B, Lead Forensics.
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Now part of Dealfront, Leadfeeder focuses on company-level visitor identification with strong GDPR compliance and native integrations across HubSpot, Salesforce, and Pipedrive.
Leadfeeder stays focused on company-level identification, without the chat or AI agent layers that Knock AI builds in alongside.
Features
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- Company-level visitor identification: IP-based matching to identify which companies visit your site.
- CRM sync: Native integrations with HubSpot, Salesforce, Pipedrive, and other major CRMs.
- Custom feeds: Build segmented lists of visitors based on behavior, firmographics, or page activity.
- GDPR compliance: Designed around EU data privacy requirements, useful for European GTM teams.
Pricing
Leadfeeder has a free plan and 2 paid plans that you can choose from:
- Lite: Free forever for up to 100 company identifications per month, 20 contacts, and a 7-day view of company visits.
- Website Visitor Identification: From €99/month (paid annually, priced by companies identified) for unlimited company reveals, CRM sync, alerts, and ad campaign lists.
- Platform: From €399/month (paid annually, priced by seats and credits) for access to a 60M company and 400M contact database, AI enrichment, and embedded CRM profiles.
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Pros & Cons
✅ GDPR-friendly out of the box, an advantage for EU-headquartered teams.
✅ CRM integration spans HubSpot, Salesforce, and Pipedrive, broader than most visitor ID tools at this price.
✅ Free tier lowers the barrier for evaluation versus paid-only competitors.
❌ Company-level identification only, no person-level.
#3: Apollo
Best for: Teams that primarily need a B2B contact database with built-in email sequences for outbound, not on-site engagement.
Similar to: ZoomInfo, Lusha.
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Apollo combines a 230M-plus contact database with native sequencing, dialer, visitor identification, and intent data, all in one outbound-first platform.
The product model points in the opposite direction from Knock AI's: Apollo is built for finding and reaching prospects, not engaging visitors who land on your site.
Features
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- Contact database: 230M-plus contacts with verified emails and direct dials.
- Sequence builder: Multi-touch email and call sequences with A/B testing.
- Built-in dialer: Click-to-call from the platform with recording and transcription.
- Intent data: Buying signals layered on top of the contact records.
Pricing
Apollo has a free plan with limited credits and 3 paid tiers:
- Basic: $49/user/month (annual) for entry-level sales teams.
- Professional: $79/user/month (annual) with sequences, A/B testing, and call recordings.
- Organization: $119/user/month (annual) with advanced security, dialer add-ons, and custom analytics.
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Pros & Cons
✅ Large contact database with verified emails at a low entry price.
✅ Built-in sequencer and dialer reduce the need for a separate Outreach or SalesLoft license.
✅ Generous free tier for evaluating the database before committing to paid.
❌ The data accuracy is the biggest frustration with some users on G2.
#4: Lead Forensics
Best for: B2B marketing teams that want detailed campaign attribution alongside visitor identification, with native Salesforce integration.
Similar to: Leadfeeder, ZoomInfo.
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One of the longest-running B2B visitor identification tools, Lead Forensics combines visitor reveal with deep marketing performance reporting and a native Salesforce sync.
What separates it from Knock AI is the analytics-first orientation, which positions Lead Forensics closer to a marketing intelligence tool than an engagement platform.
Features
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- Visitor reveal: Surfaces the company, industry, location, and behavioral data behind anonymous traffic.
- Triggered alerts: Notifies your team when target accounts hit defined pages or take specific actions on the site.
- Marketing attribution: Cross-references identified-visitor data with campaign and channel performance to show which marketing actually drives pipeline.
- Salesforce sync: Native AppExchange integration that pushes identified accounts and visit data directly into Salesforce as leads.
Pricing
Lead Forensics does not disclose pricing publicly; you'll need to contact their team for a quote. Plans are listed as Essential and Automate, both with custom pricing.
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Pros & Cons
✅ Reporting layer is deeper than most visitor ID tools, useful for marketing teams measuring channel ROI.
✅ Recovery feature for visitors who abandon forms partway through the submission flow.
✅ Strong native Salesforce integration via AppExchange, with leads flowing directly into Salesforce.
❌ Pricing is custom.
Generate more qualified pipeline with Warmly
For B2B revenue teams that want both inbound conversion and outbound orchestration running off the same data layer, Warmly is built for that motion.
Two coordinating agents share one Context Graph that scores every account the same way regardless of channel, so inbound activity informs outbound and vice versa.
And there’s no need for integrations to maintain separate tools.
You can start with Warmly's free plan to identify your first 500 visitors, or book a demo if your team needs the full Inbound and TAM agent setup.
⚠️ Disclaimer: This article was last updated on the 9th of May, 2026, and if there's any misinterpretation of the information, please contact us, and we will fact-check it.