Best G2 Software Review APIs for Developers (2026)

Why G2 Review Data APIs Matter

G2 is the world's largest B2B software review platform, with over 2 million verified reviews influencing billions in software purchasing decisions. For developers and businesses, programmatic access to G2 review data enables:

• Competitive Intelligence: Monitor competitor ratings, review trends, and sentiment shifts in real time
• Sales Enablement: Surface G2 ratings and reviews in sales workflows to build buyer confidence
• Product Analytics: Analyze review content to identify feature gaps, strengths, and user pain points
• Market Mapping: Discover top-rated products in any G2 category with detailed rating breakdowns
• Lead Scoring: Enrich lead data with the software stack and review activity of target accounts
• Content Strategy: Build data-driven comparison pages, reports, and competitive battle cards

1. Netrows

G2 Data Coverage

• Product Reviews: Full review content with reviewer details, star ratings, and submission dates
• Rating Breakdowns: Individual scores for ease of use, quality of support, ease of setup, and more
• Pagination: Retrieve large review sets with built-in pagination support
• Review Metadata: Reviewer company size, industry, role, and usage duration

Pros

• G2 reviews endpoint with full pagination and detailed rating breakdowns
• 5 credits per call — predictable, transparent pricing
• Combined with 30+ other data sources (LinkedIn, X, GitHub, etc.) in one API
• Returns structured JSON with review content, ratings, and reviewer metadata
• Interactive API documentation with OpenAPI spec
• No annual contracts or enterprise partnership required

Cons

• No Python/Node SDK yet (REST API only)
• Single endpoint focused on reviews (no product search or category browsing)

Pricing

The G2 reviews endpoint costs 5 credits per call. Subscriptions start at €49/month for 10,000 credits. No hidden fees or per-seat pricing.

2. G2 API (Official)

Pros

• Official data source with the most comprehensive G2 coverage
• Buyer intent signals showing which companies are researching your category
• Deep CRM integrations (Salesforce, HubSpot, Marketo)
• Category and comparison report data
• Review syndication and widget embedding

Cons

• Requires enterprise partnership — not available for self-serve developers
• Custom pricing only, typically thousands per month
• Long sales cycle (weeks to months) to get API access
• G2 data only — no cross-platform review aggregation
• Not suitable for individual developers or startups

3. Capterra

Pros

• Large database of verified reviews, especially for SMB software
• Part of Gartner Digital Markets (includes GetApp and Software Advice)
• Strong brand recognition among software buyers
• Detailed category taxonomy

Cons

• No public API for developers
• Data access limited to website and vendor dashboard
• Enterprise data partnerships only through Gartner sales
• Cannot programmatically access review content or ratings

4. TrustRadius

Pros

• Known for high-quality, in-depth reviews (average 400+ words)
• Strong review verification process
• TrustMaps for visual competitive positioning
• Review syndication for vendors

Cons

• No public developer API
• Smaller review database compared to G2
• Vendor-focused tools, not developer-friendly
• Custom pricing through sales team only

5. PeerSpot

Pros

• Deep focus on enterprise IT, cybersecurity, and infrastructure
• Detailed comparison reports between enterprise products
• Verified reviewer identities with job titles and company names
• Strong in categories like SIEM, EDR, cloud infrastructure

Cons

• No public API for developers
• Enterprise-only focus — limited SaaS and SMB coverage
• Smaller overall review volume compared to G2
• Custom pricing, not self-serve

Pricing Comparison

Which G2 Review API Should You Choose?

For Multi-Platform Data Pipelines

Recommendation: Netrows — If you need G2 review data alongside LinkedIn, X, GitHub, or other platforms, Netrows gives you everything in one API with consistent pricing at 5 credits per call. No enterprise partnership required.

For Enterprise Sales Teams

Recommendation: G2 API (Official) — If you're an enterprise team that needs buyer intent signals, CRM integrations, and the full G2 ecosystem, the official API is the most comprehensive option — but expect custom pricing and a sales process.

For Competitive Analysis

Recommendation: Netrows — With paginated reviews and detailed rating breakdowns, Netrows makes it easy to build competitive dashboards, track sentiment trends, and automate review monitoring without enterprise contracts.

For Enterprise IT Reviews

Recommendation: PeerSpot — For deep enterprise IT and cybersecurity product reviews, PeerSpot offers the most specialized coverage, though you'll need to work with their sales team for data access.

Frequently Asked Questions