"Free PostgreSQL Database Solutions" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
The free 9-part video course, Explore The Coin Daily Research, walks through setup and the full workflow — charts, comparisons, news and using the tools in ChatGPT or Claude: https://www.youtube.com/playlist?list=PLKY7CRxbV8Fc Ask your assistant for a chart and it arrives in the conversation — scrub Bitcoin's week, set an A-to-B range, and see the move in numbers. Pull funding, open interest, liquidations and order-book depth. Catch hourly regime shifts. Compare whole sectors, like DeFi against AI tokens. Follow source-linked news and ticker video coverage, or read the latest published Market Update with its chapters. Every figure is grounded in The Coin Daily's own research pipeline: widgets render exactly what was read, missing readings stay visible gaps, and nothing is invented. Editorial market commentary — not investment advice. No trading, wallets or payments, ever. Sign in with OAuth.
Generate and validate Factur-X, CII & UBL invoices. Free demo; 10-operation account trial.
Live AI-generated crypto trading signals for agents. Returns coin, direction and confidence with no API key at all; a free account adds full reasoning and verified outcomes, and Pro unlocks entry, stop-loss, take-profit and leverage plus 30-day history.
Registered agents sell what they measured, anyone buys: validated knowledge and signed datasets. No sign-in needed to connect: searching, dataset listings and free reads work anonymously. Sign in (OAuth) only for selling and account tools.
Real, bindable home & auto insurance quotes via MCP — actual carrier rates, not estimates. Texas today, expanding across the US. AI agents can check eligibility, run a live multi-carrier quote, compare options (carrier names hidden until bind), and hand the customer a secure link where a licensed agent finalizes coverage — never an automated purchase. No sign-up or API key required; optional free partner keys for integrators.
Ledger of AI-agent money on Base: ranked agents, payments, detections, free checks before you pay
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.
Cited exec, director and say-on-pay data for about 3,000 US public companies. Free tier, no card.
Dimensional weight, parcel fit, landed cost and freight class. 4 of 6 tools free.
Market data for AI trading agents: Hyperliquid funding on every dex incl. HIP-3 (history beyond 500h, cross-dex spreads), cross-asset event feed from primary sources, Treasury auctions, stablecoin supply. Pay per call in USDC (x402, from $0.001) or API key. Free trial key at intel.degenscan.io/carry. Not investment advice.
Tools for AI agents preparing Russian business documents: validates INN, KPP, OGRN, BIC and bank accounts by checksum, writes amounts in Russian words with VAT, declines Russian names and job titles by case, and counts working days by the official Russian calendar. Free, no API key.
SPX 0DTE dealer market structure: GEX, walls, gamma flip, regime, flow. Free preview; pay per read.
Crypto cost-basis lots (FIFO/LIFO/HIFO/specific-ID), Form 8949 rows, 1099-DA diff. 5 of 8 free.
Processor fees, charge-to-net, invoice totals and proration. 3 of 6 tools free.
Research US-listed companies and funds with the StockPortfolio.pro MCP server. Tools cover SEC filing-grounded financials, filing timelines, company comparisons, watchlist screens, fund profiles, and cited filing questions. Filed figures include their fiscal period and EDGAR source URL; missing filing data is returned as null. Public tools work without authentication; optional API-key or OAuth access is supported. US-listed, USD-reporting companies only. Keyless access includes 3 free AI questions per rolling 30-day window. To get more now, choose the Dev plan ($19.99/month, 200 credits) at https://www.stockportfolio.pro/register?plan=dev, then follow https://www.stockportfolio.pro/docs/api-mcp to connect with OAuth or an API key. Or wait for the free allowance to renew.
20 inbox, calendar, travel, meals and family-logistics skill products. 7 of 9 free.
30 finance, bookkeeping, legal-ops and SMB operations skill products. 6 of 8 tools free.
Margin, lead time, SKU mapping and price-ladder maths for dropshipping. 4 of 6 free.
Convert dated amounts to a supported target currency with traceable ECB reference rates, or retrieve recent and historical EUR reference exchange rates since 1999. Exact source dates, original decimals, citations and explicit gaps. New practical task: convert_currency_batch accepts rows with a unique id, date, currency and decimal-string amount. It preserves original amounts, source rate decimals and evidence, applies an explicit rounding rule and returns a line-by-line result. Missing, stale or mismatched rates block the complete CSV and total. A weekend date is never silently replaced by a previous working day. Try: convert 125.50 USD dated 2025-09-26 to EUR and explain the rate and rounding. Up to 500 rows, 48,000 UTF-8 argument bytes and eight currency/year snapshots per call. Start small. JSON is the default; output_format=both adds CSV in the same free result. EUR rows use identity, not an external rate. DatoQA processes supplied rows in memory without retaining their content; your client or gateway may keep its own logs. Existing tools still provide exact-date/year history and latest references. Source availability varies by currency and year; no forward filling or interpolation. Original ECB data is free. References and derived conversions are indicative, not live executable prices, transfers or accounting/tax certification. Source/schema checks are not independent factual verification. 7 focused MCP tools. Free during the pilot; no account, API key or wallet required. Same DatoQA source snapshots as the general server; public pilot without an SLA. Setup, examples and limits: https://datoqa.bhazarstudio.workers.dev/docs/fx/ Datoka portal and connection guide: https://datoka.dev/qa.
Fintech funding rounds, companies, investors, daily digest, podcast. Free, keyless, CC BY 4.0.
