Warmer

Enrich cold prospect lists and write personalized outreach at scale

Intermediate API
Screenshot of Warmer, Enrich cold prospect lists and write personalized outreach at scale

What is Warmer?

Warmer turns a plain CSV of leads into enriched prospect profiles and AI-written personalized outreach. It combines social scraping, company research, message generation, email validation and API or CSV export in one credit-based platform aimed at SDRs, agencies and small sales teams.

Warmer is a B2B sales enrichment platform built around a simple premise: generic templates no longer earn replies, and manual research does not scale. The workflow starts with a CSV of basic lead data (names and companies are enough). Warmer then scrapes social profiles for job titles, company details and recent activity, layers on company intelligence such as size, industry, funding and news, and uses a custom AI sales agent model to draft a distinct message for each prospect. Optional email validation checks deliverability before anything is sent, and the enriched records can be exported back out as CSV or JSON or pushed through the REST API. The homepage also advertises a social enrichment API for custom pipelines. The product is aimed at sales development reps, SDR managers, agencies running outbound for multiple clients and small revenue teams without a dedicated research function. In practice it replaces the block of a rep's day spent opening LinkedIn tabs and rewriting the same first line. A campaign view tracks total leads, how many are enriched, what is still processing and remaining credits, so volume and cost stay visible while a batch runs. Against alternatives, Warmer competes with standalone enrichment tools and with personalization layers that sit on top of an existing sequencer. Its pitch is breadth in one place: scraping, company research, message generation, verification and export behind one credit balance, plus direct connections to CRM and outreach stacks rather than a single native sender. The credit model means spend tracks lead volume rather than seats, which suits campaigns that swing between quiet and heavy months. Claims on the homepage are vendor-reported: 87% higher response rate, 3x reply rates in testimonials and roughly 92% time saved on research. Treat those as marketing benchmarks and validate with your own cohort. Delivery is browser-based through a web app, with API access from the Professional tier upward, so teams wanting programmatic enrichment should budget accordingly.

How do you use Warmer?

  1. 1Create an account and start the trial
    Register on the Warmer signup page. The trial is advertised as free with no credit card required, and every plan includes a monthly credit allowance that the dashboard tracks against your lead volume.
    Warmer — Create an account and start the trial
  2. 2Upload your prospect CSV
    Prepare a list with at least names and company names, then upload it as a campaign. Credits are consumed per lead processed, so start with a small batch to gauge output quality.
  3. 3Let enrichment run
    Warmer scrapes social profiles and gathers company details such as size, industry, funding and recent news. The campaign view shows which leads are complete and which are still processing.
  4. 4Review the AI-generated messages
    Each enriched lead gets a contextual draft built from profile, company and activity data. Open individual records to inspect the personalization and spot-check tone before anything reaches a prospect.
  5. 5Validate and export or connect
    Run email validation to reduce bounces, then export as CSV or JSON. Professional and Scale plans can also push data programmatically through the REST API into your CRM or email platform.

Pros and cons

Pros

  • One workflow covers enrichment, personalization and verification, so reps avoid stitching three tools togetherAI
  • Credit-based pricing keeps cost tied to lead volume rather than per-seat licencesAI
  • Direct CSV and JSON export plus a REST API mean output can feed almost any CRM or sequencerAI
  • Campaign dashboard shows enriched, processing and remaining credit counts while batches runAI
  • Entry Growth tier at $59 per month with 500 credits makes small pilot tests cheapAI

Cons

  • Public pricing stops at 10,000 credits per month; heavy enterprise volume needs a custom quoteAI
  • No native sequencer is described, so sending still depends on another outreach toolAI
  • Homepage performance figures (87% higher response, 4.2x meetings) are vendor claims without published methodologyAI
  • API access and email validation are gated to Professional and above, so Growth users hit limits earlyAI
  • No dedicated help centre or documentation page is linked, which makes troubleshooting depend on account supportAI

How much does Warmer cost?

Free trial

A free trial is promoted with no credit card required and cancel anytime terms, though the homepage does not state its length or how many credits it includes.

Learn more

Pricing

Three credit-based tiers billed monthly or annually through Stripe. Growth: $59 per month for 500 credits (about $0.12 per lead). Professional: $119 per month for 2,500 credits (about $0.05 per lead) with email validation and API access. Scale: $249 per month for 10,000 credits (about $0.02 per lead) with priority support and a dedicated manager. Annual plans save between $118 and $498.

Learn more

Support

Priority support and a dedicated account manager are listed on the Scale plan only. No public help centre, documentation portal or support contact page is linked from the homepage.

Integrations

Enriched data exports in a universal CSV or JSON format and the REST API connects to CRMs and outreach tools. Salesforce, HubSpot, Pipedrive, Outreach, Salesloft and Zapier are named as compatible.

Features

CSV upload and processing, social profile scraping for titles and activity, company intelligence covering size, industry, news and funding, AI message generation per prospect, email validation and deliverability checks, plus CSV, JSON and REST API export. A social enrichment API is also offered.

Frequently asked questions about Warmer

  • How much does Warmer cost?
    Three credit-based tiers billed monthly or annually through Stripe. Growth: $59 per month for 500 credits (about $0.12 per lead). Professional: $119 per month for 2,500 credits (about $0.05 per lead) with email validation and API access. Scale: $249 per month for 10,000 credits (about $0.02 per lead) with priority support and a dedicated manager. Annual plans save between $118 and $498.
  • Does Warmer offer a free trial?
    A free trial is promoted with no credit card required and cancel anytime terms, though the homepage does not state its length or how many credits it includes.
  • Does Warmer have an API?
    Yes, Warmer offers an API.
  • How do you use Warmer?
    The walkthrough on this page covers 5 steps: 1. Create an account and start the trial 2. Upload your prospect CSV 3. Let enrichment run 4. Review the AI-generated messages 5. Validate and export or connect.
  • What platforms does Warmer support?
    Warmer is available on Web App.
  • What does Warmer integrate with?
    Enriched data exports in a universal CSV or JSON format and the REST API connects to CRMs and outreach tools. Salesforce, HubSpot, Pipedrive, Outreach, Salesloft and Zapier are named as compatible.

Status

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Added10/21/2026

Platforms

Web App

Pricing

Free TrialSubscription