openapi MCP Connectors

Delx Protocol + Agent Utilities C

Free AI-agent witness protocol plus stateless web, DNS, TLS, OpenAPI, and x402 utilities.

Autonomous Agents Agent Orchestration

1431

DeltaSignal ATLAS-7 B

SEC/XBRL issuer intelligence for crypto public companies via MCP, OpenAPI, x402, and MPP.

Finance Cryptocurrency

8111

oasdiff A

Detect breaking changes, generate changelogs, diff, and validate OpenAPI specs.

API Testing Developer Tools CI/CD & DevOps

41

surf A

Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.

API Testing Developer Tools

11

htag-docs A

Public HTAG discovery for MCP tools, API endpoints, OpenAPI ops, and agents.

Documentation Access Developer Tools

51

Apis Guru A

APIs.guru MCP — keyless directory of 2,500+ public APIs and their OpenAPI specs.

Developer Tools Documentation Access

341

eyeot ERP C

ERP français avec serveur MCP natif : plus de 1 800 actions métier auto-générées via OpenAPI.

ERP Systems Developer Tools

331

Honeydew AI Documentation A

Honeydew AI Documentation MCP — semantic search and ripgrep-grade filesystem queries over Honeydew AI docs and OpenAPI specs, for AI coding agents.

Documentation Access Search

31

ainote A

Agent-native notes, tasks, dev-docs, vaults, sync & handoffs. MCP + OpenAPI dual surface.

Note Taking Developer Tools Knowledge & Memory

511

Keploy A

End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.

API Testing Testing & QA Tools Developer Tools

7117,094

Agentic Swarm Marketplace (T54 x402 MCP)B

MCP server exposing T54 XRPL x402 seller SKUs (OpenAPI) as tools: structured query, research brief, commerce data, and related routes. HTTP 402 + x402 settlement via broker (XRPL / Base USDC per env). Unified HTTPS host with health at /health.

E-commerce & Retail Blockchain Web3 & Decentralized Tech

121

OpenAI Tools MCP Server B

Focused MCP server for OpenAI image/audio generation (v2.0.0). Wraps endpoints via HAPI CLI.

Image & Video Processing Audio Processing Multimedia Processing

917

adamamer20-paper-search-mcp-openai BOAuth

Search and download academic papers from arXiv, PubMed, bioRxiv, medRxiv, Google Scholar, Semantic…

Search Research & Data Open Data

25114

hail

Phone, SMS & email for AI agents. One remote MCP server (Streamable HTTP, OAuth or API-key auth, no local install) exposing call, sms, email, and event tools; also usable via CLI, Python SDK, and OpenAPI. Self-hostable, AGPLv3.

Communication Email

1

Data APIs SEC Event Intelligence API A

Data APIs SEC Event Intelligence API for SEC API/EDGAR filings, OpenAPI, MCP, A2A at data-apis.com.

Finance Government Data Open Data

1

OpenAI Ads MCP A

OpenAI and ChatGPT Ads tools for campaigns, creatives, audiences, and insights.

Marketing AI & Machine Learning

121

finhay-mcp

Vietnam stock market data & portfolios via Finhay Securities OpenAPI.