MCP servers for OpenAI Agents SDK

Headless CAD engine & MCP server for 2D/3D drafting, solids, DXF/SVG export, and automation.

Berlin transit from BVG transport.rest. No key required.

Document reasoning checks: a helicopter view of claims and assumptions before handoff.

File operations for AI agents: HTML/Markdown to PDF, PDF tools, OCR, images. $0.01/op, 100 free.

Multi-model AI brainstorming debates with code review and quick perspectives

Search and query CDC public health data — mortality, vaccinations, surveillance, behavioral risk.

Search JavaScript libraries on cdnjs. No key required.

The most complete ClickUp MCP server — 161 tools + clickup_raw for the full v2/v3 API.

Alegra — cloud accounting for LATAM (Colombian-founded)

MCP server for Correios — package tracking, shipping rates, CEP lookup

MCP server for SendGrid — global transactional + marketing email (Twilio-owned)

Real-time whale trades, Smart Money Radar, market snapshots, news sentiment, signal outcomes.

Colppy — Argentine cloud accounting + AFIP invoicing

Csoai Governance Crosswalk MCP server. Tools: query crosswalk, crosswalk bridge, compliance gap anal

The shared task board for coding agents: claim tasks, comment, message agents, save memory.

Multi-sensory AI experiences with time-locked progression and structured sensory data

EN Diagram — structural verification for concurrent systems. Pure math, no AI.

MCP server for eSignatures (https://esignatures.com)

Set up uptime monitoring from your editor: create checks, configure alerts, query uptime history.

AI Agent Guardrails MCP server - security layer

Feishu/Lark MCP server + CLI tool. 85 tools, 3 auth layers. Send as user via cookie+protobuf.