FindIP From $45/mo · Free plan 9.3 Visit Patent77
patent77.com
What it is
Patent77 searches public patent records for prior art from a plain-English description of an invention, then returns cited references and a knockout-risk read. Its engine breaks the description into claim-style elements, expands synonyms, iterates searches, examines candidate documents and scores relevant references. Searches query the live Google Patents record, including US and major international patent collections. Paid patentability reports add an element-by-reference map, a novelty and obviousness narrative, limitations and PDF export. Lookups by publication number are never billed. Patent77 offers a web app, JSON API and hosted MCP server with tools for prior-art search, patent lookup and patentability assessment. Anonymous API requests need no account, but are limited to 4 requests per minute, 20 per day and three references per search. The Free plan is free and includes 3 AI searches per month and the top 5 references. Pro costs $49 a month; Scale costs $199 a month. Patent77 says descriptions are account-scoped and not used to train models, shown to others or sold, while descriptions are sent to an AI provider for query planning and reference reading. It does not cover non-patent literature, unpublished applications in the 18-month publication window or collections outside its corpus, and it is not legal advice.
Spec sheet
- 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.Read 5 Oct 2026 · patent77.com
- Intended users
- The site describes inventors and founders, attorneys and agents at small firms, and AI agents as audiences for the product.Read 5 Oct 2026 · patent77.com
- Integrations
- The product offers a JSON API and hosted MCP server, with tools named search_prior_art, get_patent, and assess_patentability.Read 5 Oct 2026 · patent77.com
- 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.Read 5 Oct 2026 · patent77.com
- 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.Read 5 Oct 2026 · patent77.com
- 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.Read 5 Oct 2026 · patent77.com
- Data source
- Searches query the live Google Patents record, including US and major international patent collections.Read 5 Oct 2026 · patent77.com
- Deletion
- Deleting an account removes its searches, reports, monitors, and keys, while backups expire on a fixed schedule.Read 5 Oct 2026 · patent77.com
- Legal limitation
- Patent77 states that it is not legal advice and recommends consulting a registered patent attorney or agent for filing decisions.Read 5 Oct 2026 · patent77.com
- Limits
- Patent77 does not cover non-patent literature, unpublished applications in the 18-month publication window, or collections outside its corpus.Read 5 Oct 2026 · patent77.com
- Patent lookup
- Patent lookups by publication number are never billed.Read 5 Oct 2026 · patent77.com
- Reports
- Paid patentability reports include an element-by-reference map, an examiner-style novelty and obviousness narrative, limitations, and PDF export.Read 5 Oct 2026 · patent77.com
- Search method
- The engine decomposes an invention into claim-style elements, expands synonyms, runs iterated queries, reads candidate documents, and scores relevant references.Read 5 Oct 2026 · patent77.com
- Storage and transport
- The service says it uses TLS, managed Postgres through Supabase with row-level security, and hashed API keys.Read 5 Oct 2026 · patent77.com
Plans and prices
Free Free free forever 3 AI searches/mo · top 5 references · web app only Read 5 Oct 2026 · patent77.com
Pro $49 a month $49/ month 50 searches/mo · 10 reports/mo, then $4/report · API + MCP · 10 monitors · 120 requests/min Read 5 Oct 2026 · patent77.com
Scale $199 a month $199/ month 300 searches/mo · 60 reports/mo, then $2.50/report · 600 requests/min · 100 monitors · priority support & uptime SLA Read 5 Oct 2026 · patent77.com
Strong points and limits
Strong points
- Plain-English invention descriptions start prior-art searches.
- Paid reports include reference mapping and PDF export.
- Publication-number lookups are never billed.
- Anonymous API calls are available without an account.
- Account deletion removes searches, reports, monitors and keys.
Limits
- Free plan includes only 3 AI searches per month.
- No free trial is offered.
- Search excludes non-patent literature and some unpublished applications.
- It does not provide legal advice.
Who it suits
Patent77 is aimed at inventors and founders, attorneys and agents at small firms, and AI agents. It may help people seeking an initial patentability read, but filing decisions should be discussed with a registered patent attorney or agent.
Verdict
Patent77 offers structured prior-art searching, with broader reports and API/MCP access on paid tiers. Its corpus limits and legal disclaimer make it a research aid rather than a substitute for filing advice.
Where Specifiction places it
- AI Patent Search Software#7 of 248.0
