"Accessing the OpenAI API" matching MCP servers:

Real human judgment as agent tools -- an AI agent can ask a question and get back a structured, schema-validated JSON answer from a real quality-scored human. 16 response types (yes/no, ratings, rankings, A/B tests, sentiment, image/video/audio review, voice/video/photo capture). Fully programmatic signup with a $5 free trial credit, no card required.

Enables coding agents to query AI model API prices, including historical point-in-time lookups with cited sources, using a bundled dated dataset and requiring no API keys.

An MCP server for searching and accessing RNA sequencing datasets from the European Nucleotide Archive (ENA), supporting bulk, single-cell, and spatial transcriptomics with advanced filtering and download capabilities.

Enables listing, reading, and searching daily AI news from AI Daily Insights with structured tools and no API key required.

Provides AI agents with Korean national fiscal data (budgets, settlements, and fiscal programs) from multiple government APIs through 7 tools, enabling natural language queries.

Gateway connector between LLM agents and world data, providing access to financial market prices, macroeconomic indicators, and news through a bundled endpoint catalog.

MCP server for accessing Jsearch API to search jobs, get job details, and retrieve salary estimates.

40-tool colour intelligence API for AI agents. Cultural risk, archive-verified colour naming, palette generation, WCAG accessibility, material physics, ecommerce copy, and image generation briefs. 16,682+ named colours across 43 cultural archives.

An unofficial MCP server for accessing Swiss Federal Statistical Office (BFS) data.

MCP server for the Infobel GetData API, enabling AI agents to search businesses, retrieve records, and browse categories and locations.

Provides read-only access to the Handigraphs Stats API v1, enabling discovery of sports resources and querying of protected sports statistics.

Enables agents to verify whether citations exist and match canonical records, and whether URLs resolve and contain expected content, with evidence-backed confirmed, contradicted, or unknown verdicts.

Provides AI assistants with real-time web search, reasoning, and research capabilities through Perplexity's Sonar models and Search API. Supports quick searches, deep research, advanced reasoning, and direct web search with ranked results.

MCP server that extracts structured JSON from public URLs for AI agents using schemas like product, article, and company.

Enables scholarly metadata lookups from the Crossref REST API, including works, members, journals, funders, types, licenses, and prefixes, as tools for LLM clients.

This server allows users to interact with their Zotero library through the Model Context Protocol, providing tools for searching items, retrieving metadata, and accessing full text using natural language queries.

A comprehensive Model Context Protocol (MCP) server for accessing the SureChEMBL chemical patent database.

Enables exploration and computation of mathematical integer sequences from OEIS using the LODA assembly language. Supports sequence discovery, program execution, algorithmic mining, and real-time computation of mathematical sequences.

Enables searching and accessing academic papers from 23+ sources (including arXiv, PubMed, Google Scholar) through the Model Context Protocol, with unified tools for search, download, and text extraction.

Enables sentiment analysis of text blocks using the Api Ninjas API, returning sentiment scores and overall sentiment classification for up to 2000 characters of text.