BlitzAPI vs SoloTools
Side-by-side comparison to help you choose the right product.
BlitzAPI
BlitzAPI powers your GTM playbooks with instant, clean B2B data APIs.
Last updated: February 28, 2026
SoloTools
SoloTools instantly creates polished client proposals with AI in seconds.
Last updated: March 4, 2026
Visual Comparison
BlitzAPI

SoloTools

Feature Comparison
BlitzAPI
Smart ICP Targeting & People Search
Find your ideal customer profile in seconds. BlitzAPI's powerful search algorithm instantly surfaces and ranks decision-makers based on your specific criteria like role, seniority, industry, and company size. This eliminates guesswork and delivers a prioritized list of high-intent prospects directly to your workflow, accelerating the top of your funnel.
Verified Email & Phone Enrichment
Get accurate, direct contact information every time. BlitzAPI's enrichment APIs append verified work emails and direct-dial phone numbers to your lead records in real-time. This ensures your outreach hits the right inbox and phone line, dramatically increasing connection rates and the efficiency of your sales and marketing campaigns.
Catch-All Email Validation with >98% Accuracy
Stop wasting credits on undeliverable leads. BlitzAPI's advanced validation engine specializes in identifying catch-all domain emails with industry-leading accuracy. This real-time verification protects your sender reputation, improves deliverability, and guarantees you're only paying for contacts that can actually be reached.
Unlimited Data Enrichment via API
Enrich at scale with simple, flexible API calls. Seamlessly integrate BlitzAPI into your existing CRM, marketing automation, or custom tools. Enrich leads with comprehensive data—from LinkedIn profiles and company details to technographics—all through a clean, developer-friendly API built for unlimited, reliable scaling.
SoloTools
AI-Powered Proposal Generation
This is the core engine of SoloTools. Go from a few basic inputs to a fully-structured proposal in about 12 seconds. The AI doesn't just fill templates; it intelligently writes persuasive executive summaries, detailed scope breakdowns, professional pricing tables, and tailored terms specific to your project type, ensuring every proposal is unique and client-ready.
AI Section-Level Editing & Refinement
Maintain full creative control with intelligent editing commands. For any section of your generated proposal, you can instruct the AI to "Make more persuasive," "Make shorter," "Make more detailed," or "Rewrite in formal tone." This allows for rapid, precise refinement without starting from scratch, ensuring the final document perfectly matches your voice and goals.
Complete Client Workflow & E-Signatures
Manage the entire proposal lifecycle within SoloTools. Send proposals directly to clients via email with a personalized message, track real-time view notifications, and collect legally-binding e-signatures where clients can draw their signature directly on the document. Set expiry dates for urgency and automate follow-up reminders to eliminate awkward chasing.
Proposal Analytics & Tracking
Gain valuable insights into your business performance. Track your conversion funnel from sent to viewed to accepted/declined. See your win rate, average close time, and total proposal value. Get instant email alerts the moment a client opens your proposal for the first time, enabling perfectly timed follow-ups to increase your close rate.
Use Cases
BlitzAPI
Automating Outbound Sales Prospecting
Supercharge your SDR team by automating lead list building. Integrate BlitzAPI to automatically enrich inbound leads or build targeted prospect lists from scratch with verified emails and phones. This creates a seamless, high-velocity outbound engine that fills calendars faster and reduces manual data entry by over 80%.
Building Scalable Account-Based Marketing (ABM) Campaigns
Execute precise ABM plays at scale. Use the Company and People Search APIs to identify all key stakeholders within your target accounts. Enrich their profiles with accurate data to personalize campaigns effectively, ensuring your marketing messages resonate with the entire buying committee for maximum impact.
Cleansing and Augmenting CRM Data
Instantly upgrade your existing database. Run your stale CRM contacts through BlitzAPI's enrichment endpoints to verify email addresses, update job titles, append phone numbers, and refresh company information. This revitalizes old leads, improves segmentation, and ensures your team is working with actionable, current data.
Powering Recruitment and Talent Sourcing Pipelines
Accelerate talent acquisition by sourcing qualified candidates efficiently. Recruiters can use the people search API to find professionals by skill, title, and company, then enrich profiles with contact details and LinkedIn URLs. This streamlines outreach and builds robust pipelines for hard-to-fill roles.
SoloTools
Freelance Web Designers & Developers
Quickly generate detailed proposals for website redesigns or development projects. The AI can include technical scopes, phased timelines (like Discovery, UI/UX, Development), and professional investment tables. Track client engagement on proposals and secure e-signatures fast to move from discussion to project kickoff in record time.
Independent Marketing & SEO Consultants
Create compelling proposals for marketing campaigns, SEO audits, or content strategy packages. Use the AI to craft persuasive executive summaries that focus on ROI and business outcomes. Leverage the analytics to see which service offerings get the most views and approvals, refining your pitches based on real data.
Solo Business & Strategy Consultants
Impress high-value clients with professionally structured project proposals for business analysis, process improvement, or strategic planning. Utilize the AI's ability to write in a formal, persuasive tone and the smart pricing suggestions to ensure your rates are competitive and justified by the detailed scope provided.
Creative Freelancers (Writers, Designers, Video Editors)
Streamline proposal creation for creative projects like branding, video production, or copywriting packages. Input the project scope and budget, and in seconds have a proposal that outlines deliverables, revisions, and usage rights. The shareable link and PDF export make it easy to present polished proposals to creative agencies or direct clients.
Overview
About BlitzAPI
BlitzAPI is the high-speed API engine built to power every modern GTM playbook. It delivers instant, programmatic access to a massive database of clean, verified B2B data, enabling growth, sales, and revenue operations teams to automate and scale their prospecting workflows at lightning speed. Forget manual research and unreliable data—BlitzAPI provides powerful, single-endpoint APIs for people search, email and phone enrichment, LinkedIn matching, and company profiling. It's designed for GTM agencies, outbound sales teams, and RevOps professionals who demand accuracy and scalability. The core value proposition is twofold: prioritize quality over noise with deliverability-first data, and integrate seamlessly so you pay only for verified results. With over 360 million contacts and 60 million company profiles, BlitzAPI transforms raw leads into targeted, actionable intelligence, empowering teams to execute repeatable playbooks with precision and efficiency, ultimately driving more pipeline with less effort.
About SoloTools
SoloTools is the lightning-fast AI proposal generator built for freelancers and independent consultants who need to win clients, not waste time. It transforms the tedious, hours-long process of drafting proposals into a task that takes about 30 seconds. You simply input core project details like the client name, project type, budget, and scope notes. In roughly 12 seconds, the powerful AI engine crafts a complete, polished, and client-ready proposal document. This includes a compelling executive summary, a detailed scope of work, professional itemized pricing, a clear project timeline, and standard terms and conditions. It's designed for busy solo professionals who want to appear more professional, save countless hours, and close deals faster. Beyond generation, SoloTools streamlines the entire client workflow: send proposals directly via email, track when they're viewed, and collect legally-binding e-signatures, all from one dashboard. With a forever-free plan offering 3 proposals per month, it's the fastest way to elevate your proposal game from blank page to signed contract.
Frequently Asked Questions
BlitzAPI FAQ
What makes BlitzAPI different from other data providers?
BlitzAPI is built on an API-first architecture designed for integration and scale, not just data delivery. We prioritize verified, deliverability-first data (especially on catch-all domains) and operate on a pay-for-results model. This means you integrate our engine into your workflow and only pay for accurate, usable data, not noisy leads.
How do you ensure such high email accuracy and deliverability?
Our >98% deliverability rate is achieved through a multi-layered validation process. We combine real-time SMTP checks, domain pattern analysis, and proprietary algorithms specifically tuned to identify and validate catch-all email servers. This rigorous system ensures the contacts you get are current and reachable.
Is BlitzAPI easy to integrate with our existing tech stack?
Absolutely. BlitzAPI is built for developers and no-code platforms alike. We offer clean, well-documented REST APIs that can be plugged into any CRM (like Salesforce, HubSpot), marketing automation tool, or custom internal system in minutes. The focus is on adapting to your workflow, not forcing you to change it.
What is your pricing model?
BlitzAPI uses a transparent credit-based system. You purchase credits and consume them only for successful API queries that return verified data (e.g., a found email, a validated phone number). This "pay for performance" approach ensures you never waste budget on bad leads. Start with 1,000 free credits to test the speed and accuracy yourself.
SoloTools FAQ
How long does it take to generate a proposal?
From the moment you input your basic project details, SoloTools' AI generates a complete, polished proposal in approximately 12 seconds. The entire process, from a blank screen to a review-ready document, takes about 30 seconds of your time.
Is there a free plan?
Yes. SoloTools offers a completely free plan that allows you to create and send up to 3 proposals every month. It includes core features like AI generation, PDF download, and shareable links. No credit card is required to start, and you can cancel anytime.
How does the AI editing work?
You can edit any section of your generated proposal using simple text commands. Click on a section (like the Executive Summary) and you'll see options like "Make more persuasive" or "Make shorter." The AI will instantly rewrite that specific section according to your instruction, allowing for fast, targeted refinements.
Are the e-signatures legally binding?
Yes, the e-signatures collected through SoloTools are legally binding. The platform provides a clear audit trail showing the client's drawn signature, the date and time of signing, and the final accepted proposal document, which serves as a valid agreement between you and your client.
Alternatives
BlitzAPI Alternatives
BlitzAPI is a powerful B2B data API platform designed for go-to-market teams. It delivers clean, verified contact and company data to fuel prospecting, email validation, and outbound workflows with a focus on quality and deliverability. Users often explore alternatives for various reasons. These can include budget constraints, the need for different feature sets, specific integration requirements, or simply evaluating the competitive landscape to ensure they have the best tool for their unique operational scale and strategy. When choosing an alternative, prioritize accuracy and data freshness. Look for platforms that emphasize verified, deliverable data over sheer volume. Ensure the solution integrates smoothly with your existing tech stack and scales with your team's growth, all while maintaining transparent and flexible pricing.
SoloTools Alternatives
SoloTools is an AI-powered proposal generator in the business and finance category, built to help freelancers and consultants create client-ready documents in seconds. Users often seek alternatives for various reasons, such as needing different pricing models, more advanced features, integration with other platforms, or simply exploring other options in a competitive market. When evaluating other tools, key factors to consider include the core AI capabilities for generating quality content, the flexibility to edit and customize outputs, and the availability of professional features like branding and analytics. Your choice should ultimately align with your specific workflow needs, budget, and the level of polish you require to win more business efficiently.