Probative legal-marketing data

唯讀 MCP 伺服器與開放 API（CC BY 4.0）：美國各州律師廣告規則、律師公會廣告申報、倫理意見、廣告平台政策、律師費上限、多地區訴訟（MDL）案卷，以及按郡分類的加州法院文件。

託管 MCP 伺服器

npx add-mcp 'https://probativegrowth.com/mcp'

可安裝到 Claude Code、Codex、Cursor 等客戶端

文件

Ask your AI assistant about your state’s ad rules

Our library of lawyer advertising rules for every US state and DC is free to use in your own tools. Connect it to Claude, ChatGPT or Cursor and ask about your state’s rules in plain words; the answer comes back with the rule’s source and the date we checked it.

Free · No sign-up · Not legal advice

Who is this for?

Firm owners and marketing staff. Add the connector once and ask your assistant questions like the ones below. It reads our library instead of guessing, and it shows you where each rule comes from.
Developers and legal-tech builders. Read the same data as plain files, or call the MCP server from your own agent. No key and no account.
Journalists and researchers. Every rule has a stable link and a one-sentence citation you can quote.

Questions you can ask once it’s connected

What does a lawyer ad in Texas have to include?
Which states make lawyers file their ads with the bar?
Compare the waiting periods for contacting accident victims in Florida, Georgia and Ohio.
What are New York’s rules on testimonials and past results?
Has anything changed in the rules this month?
What have state bars said about paying a lead generator?
What does Google Ads allow for a bail bond lawyer’s ads?

[!-warn] -warn Not legal advice. The answers summarize public rules and say how each one was checked. They don’t decide whether a particular ad is allowed: the lawyer responsible for the ad, your state bar or your counsel does. Probative is a marketing firm, not a law firm.

Use it in your AI tool

The server address is the same everywhere. There is no sign-in: when an app asks how to authenticate, choose none.

https://probativegrowth.com/mcp

Apps and directories that read server cards find this one at https://probativegrowth.com/mcp/server-card.

One click, if the app is installed: add to VS Code or add to Cursor. The app opens and asks you to confirm.

Claude (the website and the desktop app)

In Claude, open Customize, then Connectors, and add a custom connector. Give it any name, paste the address above, and choose no sign-in. Then ask a question in a new chat. On a Team or Enterprise plan, an owner adds it for the organization first.

Older versions of Claude Desktop that only read a config file can use this in claude_desktop_config.json (it needs Node.js):

{
  "mcpServers": {
    "legal-marketing-data": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://probativegrowth.com/mcp"
      ]
    }
  }
}

Claude Code

claude mcp add --transport http legal-marketing-data https://probativegrowth.com/mcp

ChatGPT

On plans that offer developer mode, turn it on in ChatGPT’s settings, create a connector with the address above, and choose no authentication.

Cursor

Add this to the mcp.json file in Cursor’s settings (or in your project’s .cursor folder):

{
  "mcpServers": {
    "legal-marketing-data": {
      "url": "https://probativegrowth.com/mcp"
    }
  }
}

Or, with Cursor installed, use the one-click install link for Cursor.

VS Code with GitHub Copilot

Add this to .vscode/mcp.json in your project:

{
  "servers": {
    "legal-marketing-data": {
      "type": "http",
      "url": "https://probativegrowth.com/mcp"
    }
  }
}

Or, with VS Code installed, use the one-click install link for VS Code, or run this in a terminal:

code --add-mcp '{"name":"legal-marketing-data","type":"http","url":"https://probativegrowth.com/mcp"}'

Windsurf

In the Cascade panel, open the MCP config file and add:

{
  "mcpServers": {
    "legal-marketing-data": {
      "serverUrl": "https://probativegrowth.com/mcp"
    }
  }
}

Cline

Add this to cline_mcp_settings.json, or paste the address above in the Remote Servers tab. Keep the type line: without it, Cline uses an older transport this server doesn’t offer.

{
  "mcpServers": {
    "legal-marketing-data": {
      "type": "streamableHttp",
      "url": "https://probativegrowth.com/mcp"
    }
  }
}

Microsoft Copilot Studio

In your agent, add a tool, choose Model Context Protocol, paste the address above, and set authentication to none.

Gemini CLI

Run this, or add the JSON below to your Gemini CLI settings.json:

gemini mcp add --transport http legal-marketing-data https://probativegrowth.com/mcp

{
  "mcpServers": {
    "legal-marketing-data": {
      "httpUrl": "https://probativegrowth.com/mcp"
    }
  }
}

OpenAI Codex

Add this to ~/.codex/config.toml:

[mcp_servers.legal-marketing-data]
url = "https://probativegrowth.com/mcp"

Kiro

Add this to .kiro/settings/mcp.json in your project (or ~/.kiro/settings/mcp.json for every project):

{
  "mcpServers": {
    "legal-marketing-data": {
      "url": "https://probativegrowth.com/mcp"
    }
  }
}

Goose

Start a Goose session with the server:

goose session --with-streamable-http-extension "https://probativegrowth.com/mcp"

To keep it, run goose configure, choose to add an extension, pick the remote (streamable HTTP) type and paste the address above.

Zed

Add this to Zed’s settings.json:

{
  "context_servers": {
    "legal-marketing-data": {
      "url": "https://probativegrowth.com/mcp"
    }
  }
}

Poke

Run this in a terminal, or add the address above as a new integration in Poke:

npx poke@latest mcp add https://probativegrowth.com/mcp -n "legal-marketing-data"

OpenAI Responses API

Pass the server as a tool in Python (the same tool entry works in any language):

from openai import OpenAI

client = OpenAI()

resp = client.responses.create(
    model="gpt-6-astra",
    tools=[{
        "type": "mcp",
        "server_label": "legal-marketing-data",
        "server_url": "https://probativegrowth.com/mcp",
        "require_approval": "never",
    }],
    input="¿Qué exige Florida en un anuncio de abogados?",
)
print(resp.output_text)

OpenAI Agents SDK

Connect the server to an agent in Python:

import asyncio
from agents import Agent, Runner
from agents.mcp import MCPServerStreamableHttp

async def main():
    async with MCPServerStreamableHttp(
        name="legal-marketing-data",
        params={"url": "https://probativegrowth.com/mcp"},
    ) as server:
        agent = Agent(
            name="Asistente de reglas",
            instructions="Responde con el texto de la regla y su fuente.",
            mcp_servers=[server],
        )
        result = await Runner.run(agent, "¿Qué exige Florida en un anuncio de abogados?")
        print(result.final_output)

asyncio.run(main())

What the assistant can look up

Each tool only reads our data. None of them can change anything, send anything or see your files.

get_state_rules

Every rule we track for one state or DC.

get_rule

One state’s rule on one topic, with the sentence to cite.

compare_states

One topic side by side across the states you name, or all of them.

search_rules

A plain keyword search, such as “Florida filing fee” or “testimonials in New York”. No AI runs on our side.

list_rule_changes

Confirmed changes to the rules, newest first.

get_ad_filing_requirements

Whether a state bar wants your ads filed, when, the fee and how to file.

get_attorney_fee_caps

Legal limits on lawyer fees: workers’ comp in every state, and Social Security, FTCA and VA fees.

list_mdl_dockets

Federal mass-tort dockets, largest first, with the change over the past year. Ask for one docket to get its monthly history.

search_ethics_opinions

Bar ethics opinions on lawyer marketing, such as paying for leads, online reviews or trade names, by state or topic.

get_ad_platform_policies

The ad policies of Google, Microsoft, Meta, LinkedIn, YouTube and ChatGPT that touch law-firm ads, quoted with the day we read them.

get_spanish_demand_supply

Spanish speakers with limited English for each Spanish-speaking lawyer, in a state or a metro area.

get_ca_court_filings

Cases filed in each California county’s superior court, by case type, with the year before.

check_ad_elements

Which of a state’s ad rules your ad touches: name what it contains (testimonials, results, “expert” claims, Spanish and more) or paste the copy, and get each rule with its source and the state’s filing rule. It points to rules to read, never to a verdict.

calculate_fee_cap

The most a lawyer may charge on one award under a fee limit we track, such as Social Security, FTCA, VA or a workers’ comp scale, with the formula and where it comes from.

get_state_market_brief

One state’s market in one call: law offices, legal deserts, Spanish-speaking demand, ad filing, referral-fee rules, the injury deadline and new lawyers, each with its source.

get_benchmark

The law-firm marketing benchmarks from our data, as bands and tiers, with the methods page to cite.

data_lookup

One state, platform, metro or court docket in any of our datasets, by its dataset name.

data_compare

The same, side by side for up to 10.

data_search

A plain keyword search across those datasets, such as “Google Ads bail bonds” or “lead generator opinion”.

list_datasets

What data the server holds, with the version and DOI of each set.

cite

The citation and credit line for the whole dataset, a state or one rule.

whats_new

What changed recently, across every dataset.

search

Finds records across every dataset by keyword and returns their ids, for ChatGPT deep research and other apps that expect search and fetch.

fetch

The full text of one record found with search, with its source, the day we checked it and the citation.

The topics are: ad filing or review, what each ad must include, waiting period for targeted injury contact, results, testimonials and “specialist” claims, referral services and lead generators, ads in Spanish and other languages, call-recording consent, texting and telemarketing law and privacy and health-data law. Every answer carries the rule text, the primary source we read, the sources with the dates we read them and, in full detail, the words quoted from each official source (from version 1.3.0), and a link to the rule on its state page.

Every answer also carries a provenance note: who first published the information (the state bar, court, agency or ad platform) and its link, the day we last checked it, the dataset and version with its DOI, the record’s id and the time the answer was sent. Answers are short by default: each record comes with its id, a sentence or two, its status, the day we checked it, one source link and the page to cite, and long lists come back a few at a time. Ask for full detail (response_format: "detailed"; the older detail: "full" still works) to get every field, every source and the provenance note on each record.

There are also ready-made prompts for apps that show them: “Check an ad against a state’s advertising rules”, a bar ad filing checklist, a digest of recent rule changes, a brief on one mass-tort docket and a Spanish-language market brief. The first loads your state’s rules and asks the assistant to point out which ones your ad touches, as questions for your lawyer, never as a verdict. Apps that suggest values as you type get state, topic, docket and area names from the server.

More servers, one for each dataset

The server above keeps the core tools. Each dataset also has its own server, with only that dataset’s tools (plus list_datasets, cite and whats_new), so an assistant can connect to just the one it needs. They work the same way: no sign-in, read-only, and the same connect steps as above with the server’s own address. The list is also the probative://servers resource on the main server, and every dataset in the catalog carries its server address as mcp.

Server	What it answers	Its own tools
`/mcp/markets`	Legal-market research for one place and practice area: demand (court filings, crashes, complaints, enforcement), lawyer supply, Spanish-language demand and ad rules, joined from every open dataset by county, state and practice, each figure with its source, version and DOI. Methods and limits.	`resolve, market_profile, compare_markets, rank_markets, supply_gap, demand_trend, supply_trend, rules_check`
`/mcp/rules`	Lawyer advertising rules for all 50 states and DC, each with its source and status.	`get_state_rules, get_rule, compare_states, search_rules, list_rule_changes`
`/mcp/attorneys`	Attorneys by county for OH, CA, MI, ID, AZ, WA and PA from each bar's public counts, per 10,000 residents, with status and as-of date.	`attorneys_lookup, attorneys_search`
`/mcp/aviation-accidents`	NTSB civil aviation accidents by state and year, 2008 to 2026: accidents, deaths, injuries and type of operation.	`aviation_lookup, aviation_compare, aviation_search`
`/mcp/bankruptcy`	Bankruptcy filings by chapter, court district, state and county, quarterly from U.S. Courts tables F-5A, F-2 and F.	`bankruptcy_lookup, bankruptcy_compare, bankruptcy_search`
`/mcp/bar-pipeline`	New lawyers by jurisdiction: bar exam pass rates and admissions, 2025.	`barpipeline_lookup, barpipeline_compare, barpipeline_search`
`/mcp/benchmarks`	Probative's law-firm marketing benchmarks, aggregated and rounded.	`benchmarks_lookup, benchmarks_compare, benchmarks_search`
`/mcp/boating-accidents`	USCG recreational boating incidents by state and year, 2019 to 2024: incidents, deaths, injuries and damage in dollars.	`boating_lookup, boating_compare, boating_search`
`/mcp/business-applications`	Census new business applications by county, 2005-2025: latest count, change over a year and since 2019, state sums.	`bfs_lookup, bfs_compare, bfs_search`
`/mcp/ca-courts`	Cases filed in each California county's superior court, by case type.	`cacourts_lookup, cacourts_compare`
`/mcp/charge-deadlines`	Deadlines to file an employment-discrimination charge, federal and by state, with the statute and verbatim quote.	`chargedeadlines_lookup, chargedeadlines_compare, chargedeadlines_search`
`/mcp/civil-filings`	Federal civil filings by nature of suit and district since 2018.	`civilfilings_lookup, civilfilings_compare, civilfilings_search`
`/mcp/consumer-complaints`	CFPB complaints about debt collection, credit reporting and debt management, by state and month since 2018.	`cfpb_lookup, cfpb_compare, cfpb_search`
`/mcp/consumer-sentinel`	FTC Consumer Sentinel reports by state: fraud, identity theft and imposter scams per 100,000 people (2024 Data Book).	`sentinel_lookup, sentinel_compare, sentinel_search`
`/mcp/county-income`	IRS income and migration by county: returns, adjusted gross income, change per return, net moves in and out of other states.	`countyincome_lookup, countyincome_compare, countyincome_search`
`/mcp/court-fees`	Small-claims dollar limits by state, with the statute or court page and the verbatim quote.	`courtfees_lookup, courtfees_compare, courtfees_search`
`/mcp/crime-data`	FBI violent and property crime, DUI and drug arrests by county and state, five years, with how many agencies reported.	`crimedata_lookup, crimedata_compare, crimedata_search`
`/mcp/criminal-filings`	Federal criminal defendants by offense and district, U.S. Courts Tables D-1 to D-3, every half-year since 2017.	`criminalfilings_lookup, criminalfilings_compare, criminalfilings_search`
`/mcp/crosswalks`	Join keys for every dataset: practice areas, federal case codes, states, federal districts and counties.	`crosswalks_lookup, crosswalks_compare, crosswalks_search`
`/mcp/deserts`	Law offices and lawyers per resident in every US county (legal deserts).	`deserts_lookup, deserts_compare, deserts_search`
`/mcp/device-events`	FDA medical device adverse event reports by product code and quarter: reports, deaths, injuries, malfunctions (top 300 codes).	`deviceevents_lookup, deviceevents_compare, deviceevents_search`
`/mcp/disability-hearings`	SSA disability hearing waits, cases pending and processing times by hearing office.	`ssahearings_lookup, ssahearings_compare, ssahearings_search`
`/mcp/drug-events`	FDA FAERS drug adverse event reports by active ingredient and quarter: serious, deaths, top reactions, MDL tags.	`drugevents_lookup, drugevents_compare, drugevents_search`
`/mcp/eeoc-charges`	EEOC workplace-discrimination charges by state and basis, FY2009 to FY2025.	`eeoc_lookup, eeoc_compare, eeoc_search`
`/mcp/eviction-laws`	Eviction laws of every state, DC and five territories (Jan. 2021): notice, cure, just cause, late fees, timing, with the statute.	`evictionlaws_lookup, evictionlaws_compare, evictionlaws_search`
`/mcp/evictions`	Eviction filings by county and year from LSC's Civil Court Data Initiative, with filings per 100 renter households.	`evictions_lookup, evictions_compare, evictions_search`
`/mcp/fair-housing`	HUD fair housing cases filed 2006 to June 2020 by state, county and basis (race, disability, familial status and more).	`fairhousing_lookup, fairhousing_compare, fairhousing_search`
`/mcp/fatal-crashes`	NHTSA fatal crashes by county since 2019: trucks, motorcycles, pedestrians and bicyclists.	`crashes_lookup, crashes_compare, crashes_search`
`/mcp/federal-filings-county`	Federal civil cases filed by plaintiff county, state, district and case type, ten years, with out-of-state totals.	`fedfilings_lookup, fedfilings_compare, fedfilings_search`
`/mcp/fees`	Attorney fee caps and contingency-fee limits by state and federal program, plus a fee-cap calculator.	`fees_lookup, fees_compare, fees_search`
`/mcp/filing`	What each state bar charges and requires to file or review lawyer ads.	`filing_lookup, filing_compare, filing_search`
`/mcp/findings`	Headline US legal-market counts, each with its denominator, limits and source dataset DOI.	`findings_lookup, findings_search`
`/mcp/firm-web-census`	US law firms by state, county and practice: firms per practice, Spanish pages, 24/7 intake, coverage vs Census counts.	`firmcensus_lookup, firmcensus_compare, firmcensus_search`
`/mcp/green-cards`	New green cards (lawful permanent residents) in the top 200 counties by class of admission and country of birth, with state totals.	`greencards_lookup, greencards_compare, greencards_search`
`/mcp/hospital-safety`	CMS Care Compare hospital patient-safety (PSI 90) and infection ratings by state and county, rated against the national benchmark.	`hospitalsafety_lookup, hospitalsafety_compare, hospitalsafety_search`
`/mcp/idb-civil`	Federal civil case outcomes (FJC IDB): time to disposition, how cases end, class actions and pro se share, by district and type.	`idb_lookup, idb_compare, idb_search`
`/mcp/immigration-courts`	Immigration court backlog, representation and asylum outcomes by state and court, from EOIR workload statistics and case data.	`eoir_lookup, eoir_compare, eoir_search`
`/mcp/irs-databook`	IRS Data Book by state, fiscal years 2019 to 2025: returns filed, gross collections and refunds issued.	`irsdatabook_lookup, irsdatabook_compare, irsdatabook_search`
`/mcp/language`	Spanish speakers with limited English per Spanish-speaking lawyer, by state and metro.	`language_lookup, language_compare, language_search`
`/mcp/law-firm-economy`	Law firms by size and state (Census SUSB, Nonemployer Statistics, Economic Census): firm counts, receipts and solo practices.	`lawfirms_lookup, lawfirms_compare, lawfirms_search`
`/mcp/law-offices`	Law offices, jobs and pay by county, with solo-practice counts (BLS, Census).	`lawoffices_lookup, lawoffices_compare, lawoffices_search`
`/mcp/lawyer-wages`	Lawyer and paralegal pay by state and metro from BLS OEWS: employment, mean and median wages and percentiles.	`wages_lookup, wages_compare, wages_search`
`/mcp/legal-aid-orgs`	Legal-aid, public-interest-law and civil-rights nonprofits per county, state and US, by type and revenue band (IRS EO BMF).	`legalaidorgs_lookup, legalaidorgs_compare, legalaidorgs_search`
`/mcp/legal-need`	Who may need a lawyer in every US county (Census ACS): 65+, noncitizens, LEP, divorced, veterans, renters.	`legalneed_lookup, legalneed_compare, legalneed_search`
`/mcp/legal-prices`	Legal-services prices and jobs, monthly from BLS: the CPI and PPI legal-services indexes and legal-services employment.	`legalprices_lookup, legalprices_compare, legalprices_search`
`/mcp/limitations`	Statutes of limitations by state for five kinds of civil claim, quoted from the code.	`limitations_lookup, limitations_compare, limitations_search`
`/mcp/mdl`	Pending actions in every federal MDL, monthly since 2019.	`mdl_lookup, mdl_search, mdl_compare`
`/mcp/mine-accidents`	MSHA mine accident, injury and illness reports by state, county and degree of injury, 2000 to 2026, coal and metal/nonmetal.	`mineaccidents_lookup, mineaccidents_compare, mineaccidents_search`
`/mcp/mortgage-lending`	HMDA home-purchase and refinance applications, loans, dollars and denial rates by county, state and US.	`mortgages_lookup, mortgages_compare, mortgages_search`
`/mcp/nursing-homes`	Nursing home fines, harm and abuse citations by county and state, from CMS, monthly.	`nursinghomes_lookup, nursinghomes_compare, nursinghomes_search`
`/mcp/ny-attorneys`	New York attorneys by county of office, registration status and admission decade, per 10,000 residents, from the court registry.	`nyattorneys_lookup, nyattorneys_search`
`/mcp/ny-workers-comp`	New York workers' compensation claims by county and accident year: attorney share, controverted, hearings, permanent disability.	`nywc_lookup, nywc_compare, nywc_search`
`/mcp/opinions`	State and ABA ethics opinions on lawyer advertising and marketing, 2015 to 2026.	`opinions_lookup, opinions_compare, opinions_search`
`/mcp/platforms`	Ad-platform policies that touch law-firm ads: Google, Microsoft, Meta, LinkedIn, YouTube, ChatGPT.	`platforms_lookup, platforms_compare, platforms_search`
`/mcp/practice-official`	Official statistics (U.S. Courts, EEOC, EOIR, NHTSA FARS) quoted on the practice x state pages, one sourced sentence per record.	`practiceofficial_lookup, practiceofficial_compare, practiceofficial_search`
`/mcp/product-recalls`	CPSC consumer product recalls by year and hazard class, with the notices that report an injury or a death.	`recalls_lookup, recalls_compare, recalls_search`
`/mcp/rail-casualties`	Railroad casualties, crossing incidents and train accidents by county from FRA Forms 55a, 57 and 54, by who was hurt.	`railcasualties_lookup, railcasualties_compare, railcasualties_search`
`/mcp/referral`	Referral-fee and fee-splitting rules for lawyers, by state.	`referral_lookup`
`/mcp/robocall-complaints`	FCC complaints about unwanted calls and texts, by state and month.	`robocalls_lookup, robocalls_compare, robocalls_search`
`/mcp/state-civil-rights`	State civil-rights agency complaint and charge counts with the source document and quote for each figure.	`civilrights_lookup, civilrights_compare, civilrights_search`
`/mcp/state-courts`	State trial-court case filings by county and case type (TX WA MD IN WI VA PA OR WV NE ME CA LA HI), by practice area, with county FIPS.	`statecourts_lookup, statecourts_compare, statecourts_search`
`/mcp/state-wage-claims`	State labor agency wage claim counts with the source document and quote for each figure.	`wageclaims_lookup, wageclaims_compare, wageclaims_search`
`/mcp/toxic-releases`	EPA TRI toxic chemical releases by county: facilities, pounds on site, carcinogens, PFAS, benzene, lead, ethylene oxide.	`toxicreleases_lookup, toxicreleases_compare, toxicreleases_search`
`/mcp/truck-crashes`	FMCSA truck and bus crashes by county, state and year: fatal and injury crashes, deaths and injuries, ten years.	`truckcrashes_lookup, truckcrashes_compare, truckcrashes_search`
`/mcp/tx-nonsubscribers`	Texas employers with no workers' compensation coverage (DWC Form-005 filings), counted by county, 2024 to 2026.	`txnonsub_lookup, txnonsub_compare, txnonsub_search`
`/mcp/unemployment`	BLS county and state unemployment rate, unemployed and labor force, annual averages and the latest month.	`unemployment_lookup, unemployment_compare, unemployment_search`
`/mcp/uscis-offices`	USCIS naturalization (N-400) and green card (I-485) applications received, decided and pending, by field office and quarter.	`uscisoffices_lookup, uscisoffices_compare, uscisoffices_search`
`/mcp/va-compensation`	VA disability compensation recipients by county and combined rating (0-20% to 100%), age, sex, FY2025 vs FY2024.	`vacomp_lookup, vacomp_compare, vacomp_search`
`/mcp/va-spending`	VA compensation, pension and survivor benefit dollars by county, FY2025, with the year-earlier change.	`vaspending_lookup, vaspending_compare, vaspending_search`
`/mcp/vehicle-complaints`	NHTSA vehicle safety complaints by state, make, model year and component: crashes, fires, injuries, deaths, recalls.	`vehiclecomplaints_lookup, vehiclecomplaints_compare, vehiclecomplaints_search`
`/mcp/veterans-representation`	VA-accredited attorneys and claims agents per veteran by state, county counts, and appeals outcomes by representation.	`varep_lookup, varep_compare, varep_search`
`/mcp/wage-enforcement`	DOL wage-and-hour back wages and OSHA inspections, violations and penalties by county, state, law and industry, ten years.	`wageenforcement_lookup, wageenforcement_compare, wageenforcement_search`
`/mcp/warn-layoffs`	WARN layoff and closure notices and employees by county and month for California and Texas.	`warn_lookup, warn_compare, warn_search`
`/mcp/wc-benefits`	Workers' compensation maximum weekly benefit by state, with the period, the agency source and the verbatim quote.	`wcbenefits_lookup, wcbenefits_compare, wcbenefits_search`
`/mcp/work-injuries`	Workplace injuries and fatal work injuries by state and industry, from BLS SOII and CFOI: rates, case counts and the riskiest sectors.	`workinjuries_lookup, workinjuries_compare, workinjuries_search`

claude mcp add --transport http probative-limitations https://probativegrowth.com/mcp/limitations

The same data as plain files

No server call needed: these are static files, open to any website or script, with no key and no usage cap. Each file starts with the credit line, the citation, the license and the link to the page to cite.

Every dataset, for people (with how to cite each one) /data/
Every dataset /data/v1/index.json
The rules, by state (Texas shown) /data/v1/rules/states/tx.json
One topic across every state (filing shown) /data/v1/rules/topics/filing.json
Confirmed changes /data/v1/rules/changes.json
Everything, as a spreadsheet file /data/v1/rules/rules.csv
State laws on drug and medical-device ads /data/v1/rules/drug-device-ads.json
The credit line and the column guide for that file /data/v1/rules/README.txt
The machine-readable description (OpenAPI) /data/v1/openapi.json
Every file of the API, one by one (the API reference) /resources/rules-api/reference/
Ready prompts for AI assistants, by persona (MCP recipes) /resources/mcp-recipes/
Example sessions recorded from the live MCP server /resources/ai-answers/
Every data change, week by week, with a feed /resources/market-changes/
Confirmed changes across every dataset (Atom feed) /data/changes.xml
The same changes (JSON Feed) /data/changes.json

The library page has the same data as a table, and each state page has the full text of every rule with its sources.

Credit and license

You can reuse, adapt and republish the data, including commercially, under the Creative Commons Attribution license. The one condition is credit with a link. Paste this line under any chart, table or article that uses it:

Source: Probative, Lawyer advertising rules by state (50 states and DC), version 1.4.0, https://doi.org/10.5281/zenodo.23750572, licensed CC BY 4.0.

To cite a single rule, use the “Cite this” line under that rule on its state page, or ask the assistant to cite it. The dataset’s permanent record is on Zenodo: https://doi.org/10.5281/zenodo.23750572.

What we keep when you use it

Nothing that identifies you or your firm. We count how many times each tool is used per day, and which kind of app called it, such as Claude or Cursor. We don’t store your questions, the text of your ads, your IP address or any account details. There is no sign-up, so there are no accounts to keep.

To keep the server fast for everyone, very heavy use from one connection is slowed for a minute at a time. The plain files above have no such limit.

Your AI app sends us only the tool name and the words it fills in, such as a state or a search phrase. We use them to answer and then discard them. The server runs on Cloudflare, which carries the traffic. The daily counts are kept for as long as they are useful to us and hold nothing about you. Our full privacy notice covers the rest of the website.

Where to go next

Want to see the rules first? Browse the library of lawyer advertising rules by state, or follow changes on Rule Watch. When you’re ready to talk about your own firm’s ads and search, start with the free review below: we handle your state’s ad rules for you.

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