"Free PostgreSQL Database Solutions" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
64 individually priced Chinese company data tools at 0.011 USDC per call via remote MCP/x402 on Base; 68 MCP definitions total. Legacy Basic (3 modules, 0.032 USDC) and Full (9 modules, 0.093 USDC) remain separate packages. Additional HTTP x402 products, NOT new MCP tools: Standard screening 0.29 USDC (ten Jinghai checks, JSON plus Chinese/English HTML); Enhanced screening 0.59 USDC (the same ten checks plus exactly one QCC qualifications check); QCC qualifications 0.03 USDC (normalized JSON, up to 30 records, no screening analysis). Product guide: https://yangchunhong3000.github.io/cn-evidence-public-docs/products.html Discovery is free; data queries require a funded Base USDC wallet and explicit x402 spending approval. Plain MCP clients do not pay automatically. Most V3 company tools require company_id from company_detail; record details use record_id from a matching, separately paid parent list. New paged lists return at most five first-page rows; legacy lists at most ten. No automatic pagination, top-up, retry or repayment. Provider balance and service availability apply. Selected records and limited-scope screening only: empty is not no risk; statistics/trends are not detailed records. No complete due diligence, human review, factory verification or supplier-safety guarantee. Native MPP is paused. Internal owner-funded HTTP company-detail, Standard and old QCC v1 samples passed paid delivery/recovery checks. The later QCC v2 funding-policy revision has offline/isolated and unsigned checks, not a fresh funded acceptance. These tests are not customer sales or certification of every tool or MCP client. Live products: https://api.cnevidence.com/free/cn/products
Argentine economic statistics sourced from official data (BCRA, INDEC, datos.gob.ar) as tools for AI agents: exchange rates, inflation, rates, reserves, activity, wages and trade. Search series, fetch history, projections with calibrated bands and the BCRA market consensus, weekly summary and release calendar. Independent project, not affiliated with any government agency. Free, attribution required.
Free, certified Oklahoma records: property insurance, roofing, and permits (Norman, OKC).
Whimbrel MedTech Analyst is your MedTech BD analyst on demand. Connect it to Claude, ChatGPT, Cursor or another AI app and ask about up-and-coming US medtech companies: who got funded this week through NIH and NSF grants and federal contracts, plus FDA clearances and Breakthrough marketing authorizations. Every line is linked to its source. Built for BD reps and small engineering firms researching companies they're interested in partnering with. Connect free: https://whimbrelresearch.com/connect/
Stock Bloc: SEC filing analysis and market data for AI agents, paid per call with x402 (USDC on Base). There are no free credits, no trials, no credit packs, no checkout, and no API key is needed to pay. MCP: POST https://stockbloc.ai.studio/api/mcp/rpc OpenAPI: https://stockbloc.ai.studio/openapi.json x402 catalog: https://stockbloc.ai.studio/.well-known/x402 Docs: https://stockbloc.ai.studio/llms.txt How to pay: call a priced endpoint. It returns HTTP 402 with a PAYMENT-REQUIRED header (USDC on Base, eip155:8453). Sign and retry with the PAYMENT-SIGNATURE header. Prices per call: $0.01 market data · $0.05 SB Score · $0.05 forecast · $0.10 13F institutional intel · $0.10 research memo · $0.10 strategy evaluation · $0.25 SEC filing job (POST /api/v1/sec/job, 10-K/10-Q/8-K) · $0.35 earnings prep pack. 13F data is from quarterly SEC 13F-HR filings, as of each fund's latest period end. It is not real-time.
Whimbrel MedTech Analyst is your MedTech BD analyst on demand. Connect it to Claude, ChatGPT, Cursor or another AI app and ask about up-and-coming US medtech companies: who got funded this week through NIH and NSF grants and federal contracts, plus FDA clearances and Breakthrough marketing authorizations. Every line is linked to its source. Built for BD reps and small engineering firms researching companies they're interested in partnering with. Connect free: https://whimbrelresearch.com/connect/
Validate CSV/JSON tables and convert dated amounts to EUR, alongside sourced historical exchange rates, country economic indicators and international public-holiday calendars. Free MCP pilot; no account, API key or wallet required for these tools. Practical tasks: - validate_table: check explicit column types, required values, date/decimal formats, allowed values and duplicate keys. Preserve original rows and explain requested normalization. No row deletion, guessed dates or independent verification of the contents. - convert_currency_batch: convert decimal-string amounts to EUR using exact-date ECB historical references, with explicit rounding, original amounts and source evidence. A missing, stale or mismatched rate blocks the complete export and total; no silent replacement by another date. Try: validate a table of invoice references, amounts and dates; or convert 125.50 USD dated 2025-09-26 to EUR and explain the source rate and rounding. Start with a small batch. Maximum 500 rows and 48,000 UTF-8 argument bytes; tables allow 20 columns and conversions eight currency/year snapshots. JSON by default; output_format=both adds CSV in the same free result when complete. DatoQA processes supplied rows in memory and does not retain their content. Your client or gateway may keep its own logs. Existing data tools remain available. Holiday coverage combines direct FR/UK/HK government calendars with the international OpenHolidays curated collection. Consult list_holiday_regions for actual countries, years and regional scope; coverage is not exhaustive worldwide and future dates may change. OpenHolidays entries do not have individual government confirmation. Responses preserve citations, observation dates, units, freshness, evidence and explicit gaps. Original public data, including ECB rates, is free from its publishers. ECB references are indicative, not executable prices or accounting/tax certification. Source/schema checks are not independent factual verification. Public pilot without an SLA. The optional paid HTTP country report remains separate and is never purchased by these tools. 26 general MCP tools. Setup, examples and focused editions: https://datoqa.bhazarstudio.workers.dev/docs/start/
Same-day regulatory updates from financial regulators worldwide — banking, payments, digital assets and crypto From the EU, UK and US to emerging markets across Asia, Africa, the Middle East and Latin America: every circular, rule, consultation and guidance, captured the day it appears, translated to English, summarised, and linked to the regulator's original—on the site, by email, or inside your AI agent. Search free; full document with original file, lineage, full text, and English translation—$0.05.
Sanctions screening for AI agents: check a name against OFAC and EU lists. Free during launch.
Colombian company and public-procurement data by NIT: RUES commercial registry, SECOP contracts, Supersociedades financials, sanctions and OFAC/UN lists, each field with its official source URL and capture date. No key needed to connect or for radicadouno_comprobar (free, 10/day). Buy a signed report per company (89,900 COP) or a Business key from within the server: no human in the loop. Companies only: no natural persons (Law 1581/2012). Not a credit score.
Free, sourced money facts and scheme lookups for US/UK/CA/AU/NZ. Answers cite bankrolled.com.
Spanish Companies Registry gazette (BORME) joined with public grants (BDNS) and public procurement awards (PLACSP) per company, for KYB and due diligence. Every fact links to its official publication. Bearer API key (free: 500 calls/day) via https://asientouno.com/contacto.
Free, no key. US commercial real estate: FHA/CMBS maturities, LIHTC/HUD expiries, bank CRE exposure.
Tesouro em Foco is a free remote MCP server that brings Brazilian government bond (Tesouro Direto) pricing into AI assistants such as Claude, Cursor, and any MCP-compatible client. The engine implements the Brazilian National Treasury's official pricing methodology — validated against 269,000+ real trades — and covers all retail bond types: fixed-rate (LTN, NTN-F), inflation-linked (NTN-B Principal, NTN-B), and retirement/education bonds (Renda+ and Educa+, NTN-B1).
UK household bin collection dates by address, council-sourced. Free anonymous use, with limits
Three public-data tools as MCP tools: building permits from 16 US city open-data portals on one schema (contractor leads, permit velocity); job postings from 9 ATS platforms (Greenhouse, Lever, Ashby, Workday, SmartRecruiters, Workable, Recruitee, Personio, Rippling) with company to ATS auto-discovery; and a free company ATS detector. Runs on Apify; send your Apify API token as a Bearer token. Pay per result, no subscription. https://makenomistakesllc.com
Search US product recalls (FDA, USDA, CPSC) via MCP. Free API keys or $0.025 USDC/call on Base via x402. Tools: search_product_recalls, search_product_recalls_by_upc, search_product_recalls_from_image. Docs: https://recallkitchen.com/docs/ GitHub: https://github.com/Recall-Kitchen/rk-mcp
US government data as clean JSON for AI agents: SAM.gov contract opportunities, USAspending awards, Grants.gov grants, House STOCK Act trades, and SEC EDGAR filings (Form 4 insider trades, 8-K events, 13F holdings, 13D/G stakes, XBRL fundamentals, 10-K/10-Q sections). 19 read-only tools. Data is as fresh as each source publishes; congressional trades lag up to 45 days and report dollar ranges (House only). Free tier, no card.
Eligibility-first UK & EU grant discovery, inside ChatGPT and Claude. Checks eligibility before recommending, explains why each grant fits, and cites the funder's own page on every answer — with an honest "competition_risk: unknown" when the data isn't there. 6 tools: search, fetch, find_opportunities, should_apply, explain_opportunity, complete_profile. Transport: Streamable HTTP. Auth: OAuth 2.1 + PKCE. Free to install, no card required.
Free, no-auth connector on French real estate public data: price per square meter by municipality (DVF), market summaries (rent, yield, price trend, ABC zoning), and urbanism/permit requirements for renovation projects.
