API Development MCP Servers

MCP servers for designing, testing and calling APIs — REST, GraphQL, OpenAPI, webhooks and gateways. Each entry is scanned with the deterministic Capability-Flow Trust Model — grades are computed, never self-reported.

Yahoo Fantasy Baseball Source verified npm
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yahoo-fantasy-baseball-mcp

MCP server for Yahoo Fantasy Baseball — AI-powered roster management, Statcast analytics, and free-agent scouting via natural language.

API Development Score 97/100 0 findings 13/wk Cap. Moderate
Matcher npm
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@lerianstudio/matcher-mcp

Model Context Protocol server for the Matcher reconciliation engine

API Development Score 96/100 0 findings 1.9k/wk Cap. Moderate
Alibabacloud Devops npm
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alibabacloud-devops-mcp-server

MCP Server for using the alibabacloud-devops API: allows AI assistants to directly participate in development collaboration, helping teams optimize development processes and improve efficiency.

API Development Score 96/100 1 finding 1.2k/wk Cap. Moderate
Postmark npm
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@activecampaign/postmark-mcp

Official Postmark MCP server for sending emails via Claude and AI assistants

API Development Score 96/100 0 findings 783/wk Cap. Moderate
Mailtrap npm
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mcp-mailtrap

Official MCP Server for Mailtrap

API Development Score 96/100 1 finding 711/wk Cap. Moderate
Dynamicweb npm
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@degree-as/dynamicweb-mcp

MCP server for DynamicWeb 10 Admin API

API Development Score 96/100 1 finding 456/wk Cap. Moderate
Mantisbt npm
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@dpesch/mantisbt-mcp-server

MCP server for MantisBT REST API – read and manage bug tracker issues

API Development Score 96/100 1 finding 340/wk Cap. Moderate
Cricketstudio npm
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cricketstudio-mcp

CricketStudio MCP server — 57 tools covering IPL 2026, IPL historical (18 seasons), MLC, BBL, PSL (men's), T20 WC (men's), and WPL (women's). Citation-grade atomic claims with provenance. Men's and women's cricket kept separate.

API Development Score 96/100 1 finding 271/wk Cap. Moderate
Zyphr Dev npm
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@zyphr-dev/mcp-server

Model Context Protocol server for Zyphr — wraps the Zyphr API as MCP tools for AI clients

API Development Score 96/100 1 finding 221/wk Cap. Moderate
Mail npm
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@infomaniak/mcp-server-mail

MCP server for interacting with Infomaniak Mail via web API

API Development Score 96/100 1 finding 205/wk Cap. Moderate
One Source npm
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@one-source/mcp

Unified MCP server for OneSource — 30 tools for blockchain data, with x402 (USDC on Base) and MPP (Tempo) pay-per-call payment rails

API Development Score 96/100 2 findings 187/wk Cap. Moderate
Guesty npm
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guesty-mcp-server

MCP server for Guesty property management — 43 production tools + 7 addressable resource templates covering reservations, guests, messaging, pricing, revenue, tasks, webhooks, and IoT/property-health Enterprise tier.

API Development Score 96/100 3 findings 182/wk Cap. Moderate
Pdfmakerapi npm
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@pdfmakerapi/mcp

MCP server for PDFMakerAPI — turn a description into a shareable, editable PDF (invoices, certificates, reports, resumes) from any MCP client (Claude, Cursor, etc.).

API Development Score 96/100 0 findings 171/wk Cap. Moderate
Umami npm
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@mikusnuz/umami-mcp

Full-coverage MCP server for Umami Analytics API v2

API Development Score 96/100 0 findings 169/wk Cap. Moderate
Gtm Suite npm
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@mambalabsdev/mcp-gtm-suite

MCP server for the full Mamba Labs GTM Suite. Exposes all eleven account-intelligence actors as tools in one server via Apify: identity resolution, firmographics, social presence, hiring signals, tech stack, job board scanner, funding and press, change fe

API Development Score 96/100 0 findings 162/wk Cap. Moderate
Canvas 2 implementations
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best: canvas-mcp-server

A comprehensive Model Context Protocol (MCP) server for Canvas LMS with full student functionality and account management

API Development Best score 96/100 1 finding 159/wk Cap. Moderate
Atlas npm
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@urbankitstudio/mcp-atlas

Query 155 verified US county parcel ArcGIS REST endpoints for owner, APN, and address lookup via the Model Context Protocol (MCP).

API Development Score 96/100 0 findings 113/wk Cap. Moderate
Grocy Api npm
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mcp-grocy-api

Model Context Protocol (MCP) wrapper for grocy API

API Development Score 96/100 0 findings 109/wk Cap. Moderate
Tempmail npm
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mcp-server-tempmail

MCP server for temporary email management using ChatTempMail API

API Development Score 96/100 1 finding 97/wk Cap. Moderate
Open Primitive npm
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open-primitive-mcp

MCP server for 33 tools across 30 federal data domains — courts, federal register, education, infrastructure, unclaimed property, entity graph, subscriptions, compliance, plus flights, cars, food, water, drugs, hospitals, health, nutrition, jobs, demograp

API Development Score 96/100 2 findings 95/wk Cap. Moderate
Apisix npm
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apisix-mcp

[![smithery badge](https://smithery.ai/badge/@api7/apisix-mcp)](https://smithery.ai/server/@api7/apisix-mcp)

API Development Score 96/100 0 findings 91/wk Cap. Moderate
Hebline.ai npm
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@hebline.ai/mcp-server

MCP-native API broker — routes agents to the best service at the best price

API Development Score 96/100 9 findings 82/wk Cap. Moderate
Twilio npm
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twilio-mcp

MCP server for Twilio SMS with AI-powered conversation management

API Development Score 96/100 0 findings 80/wk Cap. Moderate
Callwright npm
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callwright

A voice agent that places phone calls (reservations, appointments, inquiries) on your behalf, shaped by LLM direction + grounding. Runs fire-and-forget on Retell; an MCP server lets an LLM shape the grounding before each call.

API Development Score 96/100 2 findings 79/wk Cap. Moderate