Patent77
Patent77 searches the live public patent record for prior art using a plain-English description of an invention, then returns cited references and a knockout…
What Patent77 is
Patent77 searches the live public patent record for prior art using a plain-English description of an invention, then returns cited references and a knockout-risk read. Its search process breaks an invention into claim-style elements, expands synonyms, iterates queries, examines candidate documents, and scores relevant references. Searches use the live Google Patents record, including US and major international 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 is offered through a web app and API, with a hosted MCP server and tools for prior-art search, patent lookup, and patentability assessment. Anonymous API calls 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 is $49 a month. Patent77 says descriptions are account-scoped and not used to train models, shown to others, or sold. It is not legal advice.
Good
- Searches the live public patent record.
- Publication-number lookups are never billed.
- Free plan includes 3 AI searches monthly.
- Offers a JSON API and hosted MCP server.
- Paid reports include PDF export.
Watch out
- Does not cover non-patent literature.
- Unpublished applications in the 18-month window are not covered.
- Collections outside its corpus are not covered.
- Free plan is web app only.
Who it suits
Patent77 is aimed at inventors and founders, attorneys and agents at small firms, and AI agents. It may help users explore prior art, but the product advises consulting a registered patent attorney or agent for filing decisions.
Verdict
Patent77 offers prior-art search through a web app and API, with paid reports adding structured analysis. Its corpus has stated coverage limits, and the service says it is not legal advice.
Plans and prices
From Patent77's own pricing page, checked 5 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 3 AI searches/mo · top 5 references · web app only · free forever |
| Pro | $49 a month | 50 searches/mo · 10 reports/mo, then $4/report · API + MCP · 10 monitors · 120 requests/min · $49/ month |
| Scale | $199 a month | 300 searches/mo · 60 reports/mo, then $2.50/report · 600 requests/min · 100 monitors · priority support & uptime SLA · $199/ month |
The facts
Each one read from Patent77's own pages, with the date it was checked.
Money
- 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.checked 5 Oct 2026
What it does
- 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.checked 5 Oct 2026
- Data source
- Searches query the live Google Patents record, including US and major international patent collections.checked 5 Oct 2026
- Deletion
- Deleting an account removes its searches, reports, monitors, and keys, while backups expire on a fixed schedule.checked 5 Oct 2026
- Integrations
- The product offers a JSON API and hosted MCP server, with tools named search_prior_art, get_patent, and assess_patentability.checked 5 Oct 2026
- Intended users
- The site describes inventors and founders, attorneys and agents at small firms, and AI agents as audiences for the product.checked 5 Oct 2026
- Legal limitation
- Patent77 states that it is not legal advice and recommends consulting a registered patent attorney or agent for filing decisions.checked 5 Oct 2026
- Limits
- Patent77 does not cover non-patent literature, unpublished applications in the 18-month publication window, or collections outside its corpus.checked 5 Oct 2026
- Patent lookup
- Patent lookups by publication number are never billed.checked 5 Oct 2026
- 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.checked 5 Oct 2026
- Reports
- Paid patentability reports include an element-by-reference map, an examiner-style novelty and obviousness narrative, limitations, and PDF export.checked 5 Oct 2026
- Search method
- The engine decomposes an invention into claim-style elements, expands synonyms, runs iterated queries, reads candidate documents, and scores relevant references.checked 5 Oct 2026
- 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.checked 5 Oct 2026
- Storage and transport
- The service says it uses TLS, managed Postgres through Supabase with row-level security, and hashed API keys.checked 5 Oct 2026
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