No. 3 of 24 ·AI Patent Search Software

Patent77

Web · API · paid plans from $49/mo

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Patent77 is ranked #3 of 24 in AI patent search software on Freedom251. It runs on API, Web. There is a free plan. Paid plans start at $49/mo.

Patent77 plans and pricing

All plans

Free Free free forever 3 AI searches/mo · top 5 references · web app only patent77.com · 5 Oct 2026

Pro $49/mo $49/ month 50 searches/mo · 10 reports/mo, then $4/report · API + MCP · 10 monitors · 120 requests/min patent77.com · 5 Oct 2026

Scale $199/mo $199/ month 300 searches/mo · 60 reports/mo, then $2.50/report · 600 requests/min · 100 monitors · priority support & uptime SLA patent77.com · 5 Oct 2026

Compared on AI patent search software

Free plan: Yes
Paid from: $49/mo
Semantic search: Yes
Claim analysis: Yes
Monitoring alerts: Yes

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The record

Purpose: Patent77 searches the live public patent record for prior art based on a plain-English invention description and returns cited references with a knockout-risk read.
Search method: The engine decomposes an invention into claim-style elements, expands synonyms, runs iterated queries, reads candidate documents, and scores relevant references.
Reports: Paid patentability reports include an element-by-reference map, an examiner-style novelty and obviousness narrative, limitations, and PDF export.
Patent lookup: Patent lookups by publication number are never billed.
Integrations: The product offers a JSON API and hosted MCP server, with tools named search_prior_art, get_patent, and assess_patentability.
API trial: Anonymous API calls can search and look up patents without an account, limited to 4 requests per minute, 20 per day, and three references per search.
Data source: Searches query the live Google Patents record, including US and major international patent collections.
Security: Patent descriptions are stored as saved searches scoped to the user's account and are not used to train models, shown to other users, or sold.
Data processing: Search descriptions are sent to an AI provider for query planning and reference reading, while derived queries rather than raw descriptions are sent to the public patent corpus.
Storage and transport: The service says it uses TLS, managed Postgres through Supabase with row-level security, and hashed API keys.
Deletion: Deleting an account removes its searches, reports, monitors, and keys, while backups expire on a fixed schedule.
Limits: Patent77 does not cover non-patent literature, unpublished applications in the 18-month publication window, or collections outside its corpus.
Intended users: The site describes inventors and founders, attorneys and agents at small firms, and AI agents as audiences for the product.
Legal limitation: Patent77 states that it is not legal advice and recommends consulting a registered patent attorney or agent for filing decisions.
Price from: $49/mo

Where it ranks on Freedom251

Best AI Patent Search Software in 2026#3 of 24

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Sources

patent77.com· checked 5 Oct 2026
patent77.com/how-it-works· checked 5 Oct 2026
patent77.com/pricing· checked 5 Oct 2026
patent77.com/developers· checked 5 Oct 2026
patent77.com/security· checked 5 Oct 2026