Signa
Verified vendorA trademark data API that searches, screens and monitors marks across USPTO, EUIPO, WIPO, UKIPO and further national registers.
Signa describes its fuzzy, phonetic and look-alike matching as AI-powered smart matching that surfaces conflicts a keyword search would miss.
- Starting price
- From $99 / month
- Free trial
- Free tier with 10,000 credits on signup and 1,000 credits a month, up to 100 searches, no card required
- API
- Yes, a REST API with webhooks, a TypeScript SDK, agent skills and a hosted MCP server at api.signa.so/mcp
Overview
Signa is a trademark data platform that searches, screens and monitors marks across official registers such as USPTO, EUIPO, WIPO and UKIPO through one REST API. It is built for developers and law firms who put trademark data into their own software, docketing systems or AI assistants, and it also runs a hosted MCP server. It is sold by monthly credits, from a free tier through three paid plans to an Enterprise plan on request.
Our take
Pick Signa if you are wiring register data into your own product or want an AI assistant to query trademarks directly, since the free credits let you try that on real records before paying. If what you need is a clearance opinion, an analyst who reads the hits for you, or coverage of Germany and Asia today, it is the wrong layer: a full-service search provider fits that job instead, and the vendor itself calls its output data rather than legal advice.
Key Facts
| Category | |
|---|---|
| Starting price | From $99 / month Starter, billed yearly, with 20,000 credits a month (up to 2,000 searches) and $10 per 1,000 extra credits. Growth is $399 and Scale $999 a month, also billed yearly. The page offers monthly billing and says annual billing saves up to 25%, without stating the monthly amounts. A search costs 10 credits; credit costs for screening and watches are not yet announced. |
| Free trial | Free tier with 10,000 credits on signup and 1,000 credits a month, up to 100 searches, no card required |
| API | Yes, a REST API with webhooks, a TypeScript SDK, agent skills and a hosted MCP server at api.signa.so/mcp |
| Hosting | Cloud: a web app, a REST API, a hosted MCP server and agent skills |
Features
- Registers and countries covered
- 13 production offices with more than 40 million records: USPTO, EUIPO, WIPO, CIPO (Canada), IP Australia, IPOS (Singapore), UKIPO, INPI (France), Norway, Sweden, Switzerland, Spain and IMPI (Mexico), most synced daily and Canada and France weekly. DPMA, BOIP, JPO, KIPO, CNIPA and further offices are listed as planned.
- Word, phonetic and image search
- Text search through five similarity channels (identical, fuzzy, embedded, phonetic and look-alike characters), each hit labelled with its match tier and the channels that found it. Image search is listed as coming soon.
- Goods, services and Nice classes
- Search and watches filter by Nice class, and classification endpoints list classes and goods and services and suggest and validate goods and services wording
- Clearance and conflict screening
- A documented knockout and full similarity search workflow for clearance, a Compare Marks endpoint that scores a candidate against up to 10 selected conflicts, and a Screening product open to design partners during beta. The vendor states the results are informational data and not legal advice.
- Watch and alerts
- In beta: five watch types (mark, portfolio, owner, class and similarity), alerts typically within a day of office publication by signed webhook or polling, and computed opposition deadlines on alerts in supported jurisdictions. Image watch is listed as coming soon.
- Reports and exports
- JSON responses from every endpoint and a monthly proof-of-monitoring attestation per watch, as a PDF and a JSON file
- Integrations and API
- REST API with webhooks, a TypeScript SDK, and a hosted MCP server for Claude, ChatGPT, Cursor and VS Code; Microsoft Copilot is listed as coming soon
Integrations
- Claude
- ChatGPT
- Gemini
- Cursor
- Visual Studio Code
Deployment and Support
- Deployment
-
- Cloud (SaaS)
- Browser-based
- Onboarding
-
- Documentation and knowledge base
Pros and Cons
Strengths
- Free tier with 10,000 credits on signup and 1,000 a month, no card required
- Hosted MCP server and connectors for Claude, ChatGPT and Gemini
- Thirteen registers in one JSON schema, most of them synced daily
- Watch alerts carry a computed opposition deadline in supported jurisdictions
Limitations
- Screening, listing scans and monitoring are in beta, and image search and image watch are not yet available
- No German, Benelux, Japanese, Korean or Chinese register yet; these are listed as planned
- Paid plans are shown billed yearly; monthly amounts are not stated on the pricing page
- Credit costs for screening and watches are not yet announced
Pricing
-
Free
$0
Per month. 10,000 credits on signup, then 1,000 credits a month, up to 100 searches, no card required.
-
Starter
$99
Per month billed yearly. 20,000 credits a month, up to 2,000 searches, $10 per 1,000 extra credits, 300 requests a minute.
-
Growth
$399
Per month billed yearly. 100,000 credits a month, up to 10,000 searches, $5 per 1,000 extra credits, 1,000 requests a minute.
-
Scale
$999
Per month billed yearly. 500,000 credits a month, up to 50,000 searches, $2.50 per 1,000 extra credits, 3,000 requests a minute.
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Enterprise
Not stated
Contact sales. Custom credits, white-label and data rights, SLA and dedicated support.
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