"Spec-WorkFlow documentation or implementation" matching MCP servers:

Per-call billing and metering proxy for MCP tool servers. Providers set pricing via the open MCP Billing Spec (MIT), consumers pay through Stripe Connect with signed receipts and SLA monitoring.

Pay-per-call MCP server for market data with USDC micro-payments, featuring unique ML market-regime forecasts, news catalyst radar, and a live-verified algorithmic trading track record.

Description: AI-powered Polymarket prediction market analysis via Bitcoin Lightning. Get edge opportunities, analyze specific markets, and find ranked signals. Pay per analysis in sats.

Enables AI agents to perform grounded equity research by analyzing tickers from SEC filings and market data, producing citation-guarded memos with pre-computed fundamentals.

Enables read and execution access to multiple MetaTrader 5 accounts, allowing an AI assistant to manage positions, P&L, prices, indicators, history, logs, and trades across accounts.

Enables users to manage wedding preparation tasks including timeline generation, budget review, vendor quote comparison, role assignment briefs, and drafting messages for family, vendors, and friends.

Enables agencies to generate deterministic, ranked operational briefs by combining delivery status, financial performance, and recent client communication from ClickUp, QuickBooks, and Gmail.

Estimates French social benefits (RSA and prime d'activité) locally from household details like salary, rent, housing status, children, and couple status.

Local MCP for Australian accountants: ATO benchmarks, Payday Super timing, limited Division 7A reviews, 7 bounded tax worksheets and cited legislation search, plus synthetic CTR/BAS test data. Experimental reviews need professional judgement. No advice or lodgements.

A read-only MCP server so AI agents can query the corpus or the live site.

IBAN validation across 89 countries, BIC/SWIFT and Swiss clearing lookup, batch validation, payment-reference, postal-address and Swiss QR-bill checks for AI agents. Connect via MCP or the REST API. Includes free quotas, paid credits and a Pro subscription. SEPA and country-risk indicators support payment-data checks; they do not confirm account ownership or replace beneficiary AML/KYC screening.

Integrates the Metis FCA Handbook AI Harness into Claude Desktop to analyze FCA Handbook applicability for financial products, services, or firms, returning structured compliance reasoning with verbatim citations.

MCP server for the Gravv payments API that lets AI assistants onboard customers, run KYC, open accounts, move money, issue cards, and exchange currency, with built-in documentation search and safety confirmations for money-moving operations.

Enables currency conversion and exchange rate lookups using real ECB reference rates, free and without an API key. Supports natural language queries like 'convert 100 USD to EUR' or 'what's the exchange rate between GBP and JPY?'.

Compares AI coding tool spend before and after a migration -- Cursor, Claude Code, GitHub Copilot, OpenCode, Codex CLI -- via an MCP server, real numbers from each vendor's own API or local logs.

Free MCP server for real-time cryptocurrency data. Get token prices, market overview, top movers, historical charts, and detailed token info directly in Claude Code, Cursor, or any MCP-compatible AI tool. Powered by CoinGecko with 70+ token mappings and built-in caching.

Provides complete FreshBooks integration with 87 tools covering accounting, invoicing, time tracking, expense management, client/project management, and financial reporting through OAuth2 authentication.

Automates GSTR-1 filing through Sandbox.co APIs, enabling seamless integration with Claude Desktop or API for GST return submission.

Enables read-only, bounded quantitative-research workflows with schema compatibility checking and server capability discovery, without exposing market data or live trading.

Enables Claude clients to score borrower default risk, explain predictions with SHAP, compare applicants, and inspect model metadata through natural conversation. Serves a trained XGBoost model locally over stdio or remotely over HTTP with API-key authentication, keeping confidence transparent by reporting which inputs fell back to training-set defaults.