Nooks
The protocol work is the real story — a 37-tool MCP server and an MCP client, both directions, permission-scoped — wrapped around a €4,600-a-seat dialer whose core trick still puts two seconds of dead air in front of every prospect who answers.
PRICING
| Quote only | ~$4,000-5,000/user/yr | Annual contract, commonly reported five-seat minimum, free trial available only after a demo. Seats are per product (Sequencing, AI Coaching) and MCP access requires one of those seats. Twilio phone numbers billed separately. |
Nooks publishes no rate card — the pricing page is a contact form. The band above is assembled from independent buyer guides and procurement reports; several of those guides are run by competing dialer vendors, so treat it as a budgeting range rather than a quote. Confirm seat type, number provisioning, implementation and renewal uplift in writing before comparing against Orum, Koncert or a sequencing incumbent.
checked 2026-08-19 · vendor pricing page
Element scores
Strengths
Nooks ships the most complete MCP implementation in sales software right now, and it runs both ways. The server at mcp.nooks.in exposes 37 tools across accounts, prospects, sequences, enrollments, tasks, calls, emails, mailboxes, users, teams and coaching transcripts — with real write actions, OAuth 2.0 with PKCE, granular scopes, and access that inherits your Nooks role and permission profile rather than a workspace-wide key. It works with any MCP client, not just the two big chat apps. In the other direction, admins add custom MCP connectors as data sources for the AI Assistant and scheduled agents, shared or per-user, with Dynamic Client Registration handled for you, plus a built-in Notion connector that puts your playbooks and battlecards inside the drafting loop. Underneath that sits the best context layer in outbound: CRM, call transcripts, email history, web and intent signals and LinkedIn resolved into one account memory that reps and agents share. Nooks names its stack publicly — OpenAI and Anthropic frontier models on Temporal, Vercel's Agents SDK and Elastic — which almost nobody in GTM does. Security posture is genuinely enterprise: SOC 2 Type 2, SOC 3, ISO/IEC 27001:2022, GDPR, CCPA and EU-US Data Privacy Framework, with an AI governance policy, third-party AI diligence and a Bugcrowd disclosure programme published in the trust center, and no model training on customer data. The dialer itself does the boring thing well: AI answer detection drops voicemail greetings and IVRs silently so the rep only hears humans, and named customers report concrete numbers — Pendo says a third of meetings now come from AI signals, Drata a 25% lift in meetings booked.
Honest dings
The core mechanic has a physics problem the marketing does not mention. Parallel dialing means the prospect says hello and then waits one to three seconds while the system bridges a rep onto the line, and that pause reads as a robocall before anyone speaks. It is the single most common complaint in independent reviews and user forums, and no amount of AI fixes it — it is what dialing five lines at once costs. Two knock-on effects follow. Connect rates are widely reported to decline within three to six months as the reachable list gets burned through and numbers pick up carrier spam flags, so the pilot number is not the year-two number; build that into the business case. And the telephony is Twilio underneath, so the spam controls are number rotation and reputation monitoring rather than anything structural. At roughly €3,700-4,600 per seat per year with a five-seat minimum, every one of those seats is still a human SDR with ramp time and management overhead — Nooks makes reps faster, it does not replace them, and dialing five times faster makes a bad list fail five times faster. Two documented settings deserve a look on day one: call recording retention is off by default, meaning recordings and transcripts are kept indefinitely until an admin sets a retention window, which is the wrong default for a European deployment; and custom MCP connectors expose every tool the external server offers with no scope curation, which the docs themselves flag as a trust decision. Native CRM coverage is Salesforce and HubSpot only — anything else is CSV upload. There is no public developer API reference or SDK, so integration means MCP or the CRM connectors, nothing else. And for all the agent language, there is no eval harness for the agents, no regression testing when the underlying models change, and no published accuracy figure for the answer detection the entire dialer depends on.
Sources (17) — every claim traceable
Every audit lists the research it rests on — transparency and traceability are the product. Tools evolve: each audit is a snapshot of its audit date, and re-audits supersede older versions (kept below for reference).
- nooks.ai — Official homepage: agent workspace positioning, product surfaces (AI Dialer, AI Sequencing, Virtual Salesfloor, AI Coaching), the AI Reasoning and unified data layer, customer logos, and the vendor-cited G2 4.8 across 1,500+ reviews (accessed 2026-08-19)
- nooks.ai/pricing — Official pricing page — a contact form, no published rates. Also the source for the product feature breakdown and the FAQ confirming native CRM coverage is HubSpot and Salesforce only, with CSV upload for anything else (accessed 2026-08-19)
- nooks.ai/ai-dialer — Official product page: parallel and multi-line dialing, AI answer detection, spam protection via automated number rotation, reputation monitoring and carrier registration, bi-directional CRM sync, and the integration list (Salesforce, HubSpot, Apollo, Groove, Cognism and others) (accessed 2026-08-19)
- nooks.ai/ai-coaching — Official product page: automatic call scoring, live battlecards triggered on objections, manager coaching feed, and AI roleplay bots generated from real call insights (accessed 2026-08-19)
- support.nooks.ai/articles/1983758998-how-to-integra… — Official docs (updated 20/07/2026) and the primary evidence for the Protocols score: the Nooks MCP server exposes 37 tools with read and write actions, OAuth 2.0 with PKCE, per-scope permissions, seat gating, HTTPS-only transport with origin/CORS enforcement, no training on returned data, and mcp.nooks.in working with any MCP client including Claude Code and the Anthropic API (accessed 2026-08-19)
- support.nooks.ai/articles/5044912372-custom-mcp-con… — Official docs (updated 30/07/2026): Nooks as an MCP client — admin-managed custom connectors, shared vs per-user connection modes, Dynamic Client Registration, use inside Agent Builder and scheduled agents, and the explicit warning that every tool the external server offers becomes available with no scope selector (accessed 2026-08-19)
- support.nooks.ai/articles/2726404221-recording-rete… — Official docs: call recording retention is off by default and recordings and transcripts are stored indefinitely until a workspace manager enables a retention window; lists exactly which fields are purged and confirms deletion is irreversible (accessed 2026-08-19)
- trust.nooks.ai — Official SafeBase trust center: SOC 2 Type 2, SOC 3, ISO/IEC 27001:2022, GDPR, CCPA and EU-US Data Privacy Framework, plus AI governance policy, AI internal use policy, third-party AI diligence, pentest attestation and subprocessor list (accessed 2026-08-19)
- nooks.ai/blog-posts/introducing-nooks-ai-assistant-… — Official launch post 20/05/2026: AI Assistant as the conversational interface, deep account research, sequence building, scheduled long-running agents producing overnight work and morning digests, and the named infrastructure stack — Temporal, Vercel and the Agents SDK, Elastic, and the latest OpenAI and Anthropic models (accessed 2026-08-19)
- nooks.ai/blog-posts/introducing-ai-sequencing-the-e… — Official launch post 24/02/2026: AI Sequencing, the unified context layer argument against isolated agents, CRM-native sync with no shadow CRM, deliverability controls, multichannel analytics and turnkey migration from Outreach, Salesloft and Apollo (accessed 2026-08-19)
- nooks.ai/blog-posts/series-b — Official announcement 24/10/2024: $43M Series B led by Kleiner Perkins, bringing total funding to $70M, and the launch of the Dialing, Coaching and Prospecting assistants (accessed 2026-08-19)
- prnewswire.com/news-releases/nooks-announces-43m-se… — Official press release corroborating the Series B and the assistant lineup, including the vendor claim that most teams see a 2-3x increase in call volume and conversations (accessed 2026-08-19)
- pipeline.zoominfo.com/sales/nooks-ai-zoominfo-gtm-a… — ZoomInfo official announcement 20/05/2026: two-way Nooks integration over GTM.AI, ZoomInfo's headless context layer exposed through API and Model Context Protocol — independent corroboration that Nooks is wired into the MCP ecosystem in both directions (accessed 2026-08-19)
- titanx.io/news/full-review-nooks-ai-dialer — Third-party review — note the publisher sells in an adjacent category, so treat the comparison as interested: documents the dead-air problem, Twilio as the underlying telephony, list burnout within three to six months, spam-flag risk and the ~$5,000 per seat figure (accessed 2026-08-19)
- marketbetter.ai/blog/nooks-review-2026 — Third-party 2026 review from a competing vendor, used only for the recurring-complaint pattern it aggregates: connection lag as the number-one complaint across G2 and user forums, reported connection-rate declines, and its own 7/10 verdict (accessed 2026-08-19)
- thoughtly.com/blog/best-ai-outbound-dialer-platforms — Third-party dialer comparison (competing vendor) citing G2 review-mention counts of 212 for call issues and 110 for dialer issues, plus the observation that Nooks augments rather than replaces human SDRs (accessed 2026-08-19)
- saleshive.com/vendors/nooks — Independent vendor directory, research updated December 2025: founded 2020, San Francisco HQ, 51-200 employees, 200+ customers, $200+/month entry, and a feature inventory covering waterfall enrichment, smartlists, whisper coaching and AI training bots (accessed 2026-08-19)