MCP servers for Perplexity

Rate-limited MCP HTTP proxy: sliding window plus token bucket pacing so long tasks avoid 429 errors.

WCAG 2.1 AA accessibility scanner (Playwright + axe-core) with grounded, browser-verified fixes.

Structured-output enforcer: extract and validate JSON from messy LLM text.

Cross-agent memory over MCP: hybrid recall, knowledge graph, private/shared visibility, redaction.

Agent payments, API key vaulting, and governed mandates. Agents spend within user-defined limits.

Pokemon Champions battle advisor MCP server

Aid and subsidies from Spain (BDNS) and BOE live: counts, deadlines and planned schedule.

Scans MCP servers for tool poisoning, prompt injection and supply chain risks.

MCP server driving real Stata via pystata: data loading/cleaning/modeling/diagnostics/graph export, 75 tools for full econometric workflows.

Andreani — Argentine courier and logistics

Per-tenant bitemporal context graph built from domain events, shared by agents via five tools.

APIAny MCP server for model discovery, pricing, docs, and integration examples.

MCP server for QuickBooks API integration

MCP server for Russian government procurement data (44-FZ / 223-FZ / 615-PP).

Voice Calls, SMS, and WhatsApp for Claude Code with cross-channel context sharing.

Model Context Protocol server for Black Forest Labs FLUX image generation and editing

Blockchain stats from Blockchair. No key required.

Blockchain explorer for BTC, ETH, LTC, DOGE: block info, address balance, transaction details.

MCP server for Braintree (PayPal) — global card processing via GraphQL: charge, refund, vault

BrandPilot brands and design systems for coding agents: tokens, design context, repo rules.

Butterbase MCP server — manage your backend: schemas, auth, functions, storage, RAG, deploys.