PredictLeads vs StackDetect
PredictLeads
predictleads.comStackDetect
stackdetect.ioSide by side
| Figure | PredictLeads | StackDetect |
|---|---|---|
| Price from | $0.01/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 11 | 1 |
| Spec score · Technographic Data Software | 9.0 (#3) | 7.6 (#22) |
| Integrations | Official integrations include Postman, n8n, Make, Clay, ActivePieces, Apify, Pipedream, Claude, ChatGPT, Polytomic and other automation, MCP and reverse-ETL tools. | Business and Enterprise plans offer CRM enrichment, and the StackDetect API can enrich CRM records with technographic data. |
| Product | PredictLeads offers structured company intelligence for AI agents through MCP, APIs, webhooks, and flat files. | StackDetect detects and catalogs website technologies, then lets users search, filter, and export prospect lists based on the tools websites use. |
| Support | The pricing page lists 24/7 support for full flat file access and for usage tiers above 10,000 calls. | StackDetect says its support team typically replies within a couple of hours during business days. |
Plans
PredictLeads
- 100,001-500,000 API CallsFree
- 100,001–500,000 API CallsFree
- 100 API credits FreeFree
- 500,001+ API CallsFree
- 10,001-100,000 API Calls$0.01 a month
- 10,001–100,000 API Calls$0.01 a month
- 5,001-10,000 API Calls$0.02 a month
- 5,001–10,000 API Calls$0.02 a month
- 101–5,000 API Calls$40 a month
- 101-5,000 API Calls$400.04 a month
In their own words
PredictLeads
PredictLeads provides structured company intelligence for AI agents through MCP, APIs, webhooks, and flat files. Its firmographic dataset covers 120M+ companies and may include descriptions, tickers, locations, and corporate hierarchies. News data spans 20M+ PR sites, news outlets, and blogs, with events sorted into 37 types. Job-posting data covers 2.7M+ companies and includes full descriptions, ONET codes, and salary details. Other datasets cover technographics, financing events, products, key customers, and similar companies. Delivery options include REST APIs, downloadable flat files, MCP, and real-time webhooks; listed integrations include Postman, n8n, Make.com, Clay, ActivePieces, Apify, ChatGPT, Claude, and Polytomic. The service has API, self-hosted, and web platforms. PredictLeads lists a free plan with up to 100 free API calls per month and paid access from $40/mo. Unused credits expire each billing period, and requests beyond the monthly credit limit return a 402 error. The company says it maintains SOC 2 Type II certification and encrypts customer data in transit.
StackDetect
StackDetect detects and catalogs technologies used by websites, then lets users search, filter, and export prospect lists based on those technologies. It covers CMS platforms, WordPress plugins, ecommerce apps, analytics, advertising pixels, JavaScript frameworks, CDNs, payment gateways, CRMs, and more. Lead lists group websites by the tools they use for outreach, enrichment, or analysis. Each record includes a hostname, detected technologies and categories, confidence, HTTPS status, and last-seen date. Data comes from public pages through a browser extension and proprietary crawler; private or authenticated content is not accessed. The extension collects visited hostnames and detected technologies, not page content, form data, passwords, or personally identifiable information. Detection depends on public fingerprints and varies by technology; less-visited sites may have data weeks old. The free plan costs nothing and includes 50 technology lookups per month and sample lead lists. Paid plans include bulk exports and advanced filters; Business and Enterprise add CRM enrichment and API keys. Each API lookup uses one credit. Included API credits expire after 60 days; purchased top-ups do not.