Seamless.AI Review, Pricing & Alternatives (2026)

Seamless.AI is a B2B sales intelligence platform from Seamless Contacts Inc., founded in 2015 and based in Columbus, Ohio. CB Insights lists $3.38 million in total funding. Founder and CEO Brandon Bornancin remains the public face of the company. The business announced a rebrand to Seamless on February 10, 2026, while keeping seamless.ai as its website. Company figures point to rapid expansion: more than 500,000 sales teams in a June 2025 announcement, then more than 1,000,000 in the rebrand announcement. Its 2025 review reported 70 million contact searches and 13 million company searches. Those figures describe company-reported activity, not independently audited customer totals, but they show the product's intended scale and commercial focus clearly.

A normal workflow begins with filters for title, industry, geography, company size, and related company or contact fields. Users can research a person, save the record, enrich an uploaded list, or send contacts into outreach workflows. The product includes a Chrome extension, Job Change Enrich, Buyer Intent, org charts, AI Assistant, Autopilot, AI Campaigns, and CRM connections. Developers use a separate search and research sequence. They authenticate with an API key or OAuth, search contacts or companies, submit selected results for research, then retrieve results through polling or webhooks. The API also offers MCP access for Cursor, Claude, and ChatGPT. That gives technical teams a path to build CRM, warehouse, or agent workflows around the same contact data.

Seamless describes the platform as an AI Data Engine that searches for and verifies business contact and company information. AI Data Engine 4.0 arrived on December 9, 2024, followed by the Universal API in May 2025. The company's 2025 coverage also described deeper Chrome side-panel insights and redesigned contact and company profiles. Recent releases include a Job Changes filter on December 19, 2025, the Connect platform revamp in January and February 2026, AI Campaigns in June 2026, and API access across every plan in May 2026. Published documentation does not identify a third-party foundation model behind these features. API traffic has a default organization-level limit of 60 requests per minute per endpoint, with all users and keys sharing that quota.

Seamless uses Universal Credits across search, enrichment, AI features, automation, and API activity. The free license costs $0 and supplies 50 credits once, with no replenishment. Basic provides 250 credits monthly, while Pro provides 10,000 monthly credits. Both paid plans use custom pricing. Contact research and app enrichment cost one credit per contact or row. AI Assistant interactions cost 0.2 credits, and AI-generated campaign messages cost 0.2 credits. API search costs one credit per 10 returned results, rounded up, while API research costs one credit per submitted record. Search and research draw from the same balance. Bulk pools and enterprise packages are custom quoted, and legacy Standard Credit Pro licenses are closed to new buyers.

Credit accounting is the main constraint. Search, enrichment, research, AI actions, and automation use overlapping balances, and inaccurate records can still consume credits. Paid prices are not public, and API terms prohibit spam, resale, unauthorized aggregation, sensitive personal information, and unapproved caching. ZoomInfo is stronger for enterprise account intelligence and intent programs, while Seamless offers a free test and a prospecting workflow. Apollo.io presents a more explicit multichannel sequencing model, whereas Seamless emphasizes data discovery and enrichment. Lusha suits smaller contact lookups with fewer automation surfaces. Seamless is the better pick for B2B prospecting and API enrichment when a team can monitor credit use.