Baseline Labs Schema Generator

Baseline Labs Schema Generator reads a live page, identifies its type, and creates JSON-LD structured data. It supports more than 20 schema.org types, including Article, Product, FAQPage, HowTo, LocalBusiness, and SoftwareApplication. The output is a static snapshot of the page at generation time; users can paste its script tag into the page head without server changes or extra libraries. Rolling Schema is a separate feature that re-crawls pages and regenerates markup on a schedule as often as every 30 minutes. The generator page currently reports that the service is temporarily offline and submitted pages have been queued. An API generates JSON-LD for a URL, uses an X-API-Key header, and is included on Power and above. The Free plan includes single-page generation and Rolling Schema for one domain and five pages. Standard costs €79 a month and has no API access; Power costs €249 a month and includes API access. Ultimate is €749 or more per month. Standard and Power list a seven-day trial for new subscribers.

The generator offers static JSON-LD output and a separate scheduled option, with API access on higher tiers. The stated service outage is an important limitation for anyone planning to generate markup now.

It suits site owners who need JSON-LD for supported page types, either as a one-time snapshot or through scheduled regeneration. The API is available on Power and above; the generator page currently says the service is temporarily offline.

Overview

Baseline Labs Schema Generator turns live pages into JSON-LD for sites that need structured data without adding libraries or changing server code. It suits site owners who want broad schema coverage and an option to keep markup refreshed, though its temporary service outage makes it a poor choice for urgent generation.

Baseline Labs was founded by Chris Mortimer in 2025 and is based in Galway, Ireland. Support is available by email or contact form.

Key features

Generation and installation

The tool identifies a page type and generates JSON-LD across more than 20 schema.org types, including Article, Product, FAQPage, HowTo, LocalBusiness and SoftwareApplication. Its output is a snapshot of the page at generation time, so changes to the source page do not update the markup automatically. Pasting the script tag into the page’s head keeps deployment simple: the markup requires no server changes or extra libraries.

Schema validation, bulk generation, WordPress support and markup monitoring are also supported. The service page currently says generation is temporarily offline and submitted pages are queued for processing; that interruption outweighs the convenience for anyone who needs working output now.

Rolling updates and API

Rolling Schema re-crawls pages and regenerates markup on a schedule as often as every 30 minutes. That is the practical choice for pages that change regularly, while one-time generation is better suited to relatively stable content. The API generates JSON-LD for a URL and is included on Power and above. Requests use an X-API-Key header; insufficient credits and rate limiting are among its error responses, so API users need to account for quotas and request limits.

Users can connect Google Search Console and optionally Google Analytics with read-only access to selected properties. Connected data is used to display measurements in Baseline Labs, not sold, used for advertising or used to train AI models. The company cites HTTPS/TLS encryption in transit, hashed passwords, access controls and network isolation between services. Its core application and database are hosted in the EU; GPU inference and globally distributed object storage may involve processing outside the EEA.

Pricing

The Free plan costs nothing. It includes the schema generator and Rolling Schema for one domain and five pages; single-page generation requires no account or card. That is a useful starting point, but the five-page rolling cap constrains ongoing coverage.

Standard costs €79 a month, billed €79 / month. It covers one domain, 2,500 credits per month and Rolling Schema auto-injection, but has no API access. New subscribers get a 7-day free trial. It fits a single-domain operator who wants scheduled markup without programmatic access.

Power costs €249 a month, billed €249 / month. It expands coverage to 10 domains and 20,000 credits per month, adds a Rolling Schema priority queue and API access with 1,000 requests per day. The 7-day free trial applies to new subscribers. This tier is better suited to multi-domain operations that need API workflows; the daily API limit still matters for high-volume use.

Ultimate costs €749 a month, billed €749+ / month. It offers unlimited domains, dedicated GPU capacity, white-label reporting, an MCP endpoint, custom deployment and an SLA. Its custom deployment and SLA make it the tier for organizations needing tailored infrastructure or service terms, rather than a cost-conscious single-site user.

Platforms

Baseline Labs offers web access and an API. The generator’s static script output suits conventional page integration, while the API is limited to Power and higher tiers.

Who it's for

Choose it if you need several schema types, a no-library installation path, or scheduled regeneration for changing pages. The Free plan gives individual users a low-commitment way to generate one page or cover a small rolling set. It is less suitable for urgent work during the stated outage, or for API use on a budget below Power.

Pros and cons

• Pros: More than 20 schema types and static script output make it adaptable without server changes or extra libraries.
• Pros: Rolling Schema can refresh markup as often as every 30 minutes, with free coverage for one domain and five pages.
• Pros: Read-only analytics connections and stated restrictions on sale, advertising use and AI training give users clear data-use boundaries.
• Cons: The generation service is temporarily offline, delaying users who need immediate output.
• Cons: Standard has no API access; API users must move to Power at €249 a month.
• Cons: The free rolling allowance is limited to five pages, and Power API requests are capped at 1,000 per day.

Alternatives

Schema Markup Tools is the broader category directory for comparing options.

• JSON Schema App SaaS Schema is a web-based freemium option whose free Basic Plan covers Product, Service and Articles, up to 50 URLs, basic structured-data setup, an LLMs.txt Generator and a Schema Markup Checker. Pick it when those types and its stated URL allowance fit better than Baseline Labs’ rolling-page focus.
• Rolling Schema is another freemium web and API option; its free tier includes one domain, 500 credits per month and five rolling-schema pages, with no API access. Consider it when a free rolling allowance with a stated monthly credit quota is the priority.
• SchemaValid is a free, browser-based web tool with no account or installation; choose it when those constraints matter most.
• JSON-LD Generator is a free web tool with 17 schema types and no signup stated; it may suit a user who wants a simpler free option.
• StructuredValidator is a free web tool with no signup stated.
• Schema Markup Generator is free and requires no login or signup.
• Schema Markup Info is a free web option.
• Schema & Structured Data for WP & AMP supports self-hosted and web platforms; its PERSONAL plan costs $99 a year and renews after one year. Consider it when a WordPress-oriented option and annual licensing are a better fit.

Verdict

Baseline Labs Schema Generator is best for site owners who want broad JSON-LD coverage with a path from static markup to scheduled updates, and for teams that need API access on Power or above. The breadth and refresh options are its strongest reasons to choose it; the current outage and the API’s higher entry tier are the clearest reasons to look elsewhere.