MCP servers for ChatGPT

Unified analytics MCP server for GA4, Mixpanel, and PostHog.

MCP server for the EntraX Payment API (HMAC-SHA256). Exposes create/status/refund/rates as AI tools.

Read-only analysis of intracortical BCI recordings (NWB, DANDI, WAV): spikes, PSTHs, decoding, plots

EnergyPlus weather files (EPW, DDY, STAT) and design conditions for any site, OpenStudio-MCP ready.

ESP-IDF Documentation Explorer MCP Server

MCP server for ESPN Fantasy Sports API

🛡️ Make AI interrupt itself and challenge your thinking. Turns Claude into a philosophical sparring partner who actively contradicts

Personal Expense Tracker MCP Server — expenses, income, budgets & savings goals

Expose your Express endpoints as MCP tools with zero configuration, schema preservation, and streaming support

MCP server exposing the FACEIT Data API v4 as typed tools.

Spanish e-invoicing MCP server: VERI*FACTU, Facturae/FACe, SII, Crea y Crece B2B.

Invisible per-recipient image watermarks. Mark one copy per recipient, then identify a leaked copy.

Glass-box statistical analysis for agents: 19 methods, cited findings, measured error rates.

OCR scanned PDFs and images into text or searchable PDFs with the FastOCR API.

Italian e-invoicing with Fatture in Cloud. Create, send to SDI, manage clients.

MCP server for creating and editing draw.io diagrams through intent-level commands

MCP server for the feriados.io API — Latin American holidays & business days

MCP server that extracts complete knowledge from any codebase — architecture, patterns, dependencies, API surface

Read-only grades for publicly observable FHIR endpoints, served from the published dataset.

Optical ops MCP for AI DCs — gNMI, ML RUL, Digital Twin, NCCL, SPARQL semantic

Figma Comments MCP: an MCP server that fetches and filters Figma file comments for triage in Claude Code