Backend and APIs MCP servers

grulex/grpc-invoke-mcp

MCP server Claude CodeCodexCursor +2

MCP server for describing and invoking gRPC methods. Runs locally from the @grulex/grpc-invoke-mcp npm package.

hans6883/cert-atlas

MCP server Claude CodeCodexCursor +2

Search 1,580 certification exam blueprints: domains, scoring, prerequisites, compare. No API key. Runs locally from the cert-atlas-mcp npm package.

BullrunData/market-intelligence-mcp

MCP server Claude CodeCodexCursor +2

Recession probability, capital rotation scoring, and economic data API. Runs locally from the @bullrundata/market-intelligence npm package. Needs 1 environment variable to run.

kozmos-tech/contactapi

MCP server Claude CodeCodexCursor +2

An open-source API for collecting and managing contacts and signups. Runs locally from the @kozmos-tech/contactapi npm package.

malkreide/global-education-mcp

MCP server Claude CodeCodexCursor +2

MCP Server für internationale Bildungsdaten – UNESCO UIS (4000+ Indikatoren) und OECD Education at a Glance (SDMX API). Runs locally from the global-education-mcp Python package.

malkreide/swiss-academic-libraries-mcp

MCP server Claude CodeCodexCursor +2

MCP Server für Schweizer Wissenschaftsbibliotheken: swisscovery (SRU), e-rara/e-periodica/e-manuscripta (OAI-PMH) und Open-Access-Rechtsliteratur (sui generis, ex/ante, Repositorium.ch). Kein API-Key erforderlich. Runs locally from the swiss-academic-libraries-mcp Python package.

mrz1880/mcp-keycloak-admin

MCP server Claude CodeCodexCursor +2

Administer Keycloak via its Admin REST API: users, roles, clients, groups, IdP, events. Runs locally from the mcp-keycloak-admin npm package. Needs 10 environment variables to run.

nexusrun/nexusai

MCP server Claude CodeCodexCursor +2

Deploy full-stack apps (Postgres, Redis, S3, workers, backups) from Claude or curl. 59 MCP tools. Remote server at api.zollo.live.

rationalbloks/rationalbloks-mcp

MCP server Claude CodeCodexCursor +2

RationalBloks MCP Server - Deploy production REST APIs and Neo4j Graph APIs in minutes. 45 infrastructure tools for projects, schemas, and graph data. Runs locally from the rationalbloks-mcp Python package. Needs 1 environment variable to run.

NerveNetwork/nerve-agent

MCP server Claude CodeCodexCursor +2

MCP server for Nerve blockchain JSON-RPC & REST API for AI Agents. Runs locally from the nerve-rpc-mcp npm package.

pricewatcha/pricewatcha-api

MCP server Claude CodeCodexCursor +2

Track prices & price history on any online shop, with alerts and an API. Remote server at mcp.pricewatcha.com.

saurav61091/mcp-openapi

MCP server Claude CodeCodexCursor +2

Turn any OpenAPI 3.x spec into callable MCP tools for Claude. No custom integration code needed. Runs locally from the mcp-openapi-runner npm package.

sani-savaliya/agentify

MCP server Claude CodeCodexCursor +2

Turn any OpenAPI/Swagger spec into an MCP server - every API operation becomes an agent tool. Runs locally from the agentify-openapi npm package. Needs 6 environment variables to run.

sebastienrousseau/camt-exceptions

MCP server Claude CodeCodexCursor +2

Generate and validate ISO 20022 Exceptions & Investigations (E&I) camt messages -- camt.056 Payment Cancellation Request and camt.029 Resolution of Investigation -- with an MCP server. Runs locally from the camt-exceptions Python package.

sebastienrousseau/acmt001-mcp

MCP server Claude CodeCodexCursor +2

Model Context Protocol (MCP) server exposing the acmt001 ISO 20022 Account Management library as agent tools. Runs locally from the acmt001-mcp Python package.

sebastienrousseau/iso20022-mcp

MCP server Claude CodeCodexCursor +2

Unified Model Context Protocol (MCP) gateway for ISO 20022: one small set of meta-tools (search, describe, validate, generate, parse) routing across the pain, pacs, camt and acmt message families. Runs locally from the iso20022-mcp Python package.

theYahia/elma365-mcp

MCP server Claude CodeCodexCursor +2

MCP server for ELMA365 API — app items, BPM tasks. 3 tools. Runs locally from the @theyahia/elma365-mcp npm package. Needs 1 environment variable to run.

ssm82/full-vk-mcp

MCP server Claude CodeCodexCursor +2

MCP server for VK API with 180+ tools: users, wall, groups, friends, photos, messages. Runs locally from the full-vk-mcp npm package.

tambo-labs/charming-mcp

MCP server Claude CodeCodexCursor +2

Build personal interactive apps with real URLs and persistent storage, using any AI. Remote server at charm.ing.

var-raphael/QUOREL

MCP server Claude CodeCodexCursor +2

Turn any public website into a clean, versioned, queryable API — with native MCP support. Remote server at quorel.onrender.com.

vncent786/bounty-api

MCP server Claude CodeCodexCursor +2

Singapore property & financial data APIs for AI agents. 27 MCP tools. x402 micropayments. Runs locally from the bountyapi-mcp npm package. Needs 1 environment variable to run.

x402node/x402-mcp

MCP server Claude CodeCodexCursor +2

Hundreds of x402-paid APIs as MCP tools, auto-discovered from Coinbase Bazaar. USDC on Base+Solana. Runs locally from the x402node-mcp npm package. Needs 1 environment variable to run.

virgilvox/discord-furlow

MCP server Claude CodeCodexCursor +2

Author FURLOW Discord bot YAML: validate specs, list actions/events/builtins, scaffold bots. Runs locally from the @furlow/mcp npm package.

webtoolbox/websitetoolbox-mcp

MCP server Claude CodeCodexCursor +2

Community forum management — posts, users, search, and moderation via the Website Toolbox API. Runs locally from the websitetoolbox-mcp npm package.