Web & software development

Foresee what git commands and multi-step changes will do, as calibrated probabilities

Elasticsearch MCP Server for ES 5.x-9.x with a query harness, field validation and full API access

Validate, generate, convert and extract EN 16931 e-invoices for businesses.

Real-time electricity prices for AI agents. 40+ countries, 100+ zones. No auth required.

A sample MCP server for testing

Independent verifier for AI agents: checks agent claims and doc promises against the code.

Capture a web source, or seal a hash you hold, into a signed receipt anyone can verify offline.

EmailOctopus email newsletter marketing MCP server: list campaigns, get campaign report.

Analyze, audit, fix and diff HTML, MJML, Maizzle and React Email across 21 email clients.

70-tool MCP server for TouchDesigner: build, wire and debug live networks from an AI agent.

Run crypto trading strategy backtests through EmidLabs's Backtesting API.

EmojiHub MCP — wraps EmojiHub API (free, no auth)

Cognitive memory for coding agents: hybrid recall, remember/forget, knowledge graph, nightly dreams.

Context for coding agents: checks a GitHub or Linear issue is ready before your agent starts it.

Free — no API key required. Enrich by domain or name. Country, contacts, social profiles.

Spec-driven development for AI coding agents: live requirements, stories and traceability over MCP

French Companies MCP — recherche-entreprises.api.gouv.fr

EPA Emissions MCP — wraps EPA Envirofacts REST API (free, no auth)

What is known to be broken in an MCP server or API operation, with the check that found it.

Sandbox-verified fixes where AI models write outdated code for PyPI and npm libraries

ErzyCall lets an agent or app make and take real phone calls through MCP or API.

XBRL filings index MCP — wraps the filings.xbrl.org JSON:API index run by XBRL International, plus…

Guardrails for AI coding agents: verified claims, reviews bound to exact commits, gated merges.

EstimateOne construction tendering marketplace MCP server: search tenders, get tender details.

Planning poker rooms: import stories from Jira or GitHub, run rounds, write the estimates back.

AI cycling coach — training plans and beginner guidance via the Etapa API.

No-KYC managed MCP for AI agents: sandboxed TypeScript trading SDK, isolated sub-accounts, futures.

Etherscan MCP — multichain block-explorer API (Etherscan V2)

Eurostat MCP — wraps Eurostat Statistical Data API (no auth required)

Pay-per-call AI evaluation MCP server. Score LLM outputs against benchmark rubrics via Workers AI.

Find business leads with emails from Google Maps, Apollo.io and LinkedIn. Prepaid, API key.

Resolve prediction market events. Price checks, claim verification, outcome confidence.

Eventbrite event ticketing MCP server: list events, list orders, list attendees, check in attendees.

Everfit personal trainer coaching MCP server: list clients, get client overview, assign program.

Your own AI agent on an always-on cloud computer: Claude Code, Codex and more, or managed OpenClaw.

Start and track a US eviction case in any state or DC; a licensed attorney reviews each real case.

Catch TypeScript API and OpenAPI contract drift in AI-generated code, then revalidate it in CI.

Evite event invitations and rsvps MCP server: create event, add guests, get RSVPs, message guests.

Send and read WhatsApp messages, send media and manage instances via the Evolution API.

Persistent long-term memory for Claude Desktop / Claude Code, backed by EvolutionDB.

Exact Online small business accounting MCP server: create sales invoice, send invoice.

Exchange MCP — wraps the Frankfurter currency exchange API (free, no auth)

Real-time & historical exchange rates for 160+ currencies, mid-market (Reuters/Refinitiv).

ExchangeRate MCP — wraps open.er-api.com (free, no auth)

Single exec tool running caller Python in a network-isolated locked-down sandbox.

Catches what reading the code misses: AI agents check running React Native apps

Gives AI agents eyes and hands into running React Native apps: logs, REPL, tap, screenshots

Premium agentic endpoint for api-key-load-balancer-mcp.

Premium agentic endpoint for api-quota-balancer-mcp.

Premium agentic endpoint for api-rate-limit-enforcer-mcp.