"Simple HTTP server or client implementation" matching MCP connectors:

Cello MCP server to launch and manage your User Referral and Partner program — for developers and growth teams.

xmagnet — AI-powered B2B CRM for Claude. 35 tools that turn natural-language prompts into real CRM actions: prospect, enrich, score leads, manage deals, scan buying intent, run email campaigns and sequences, build forms and landing pages, refine ICP, and analyze performance — all directly inside Claude. 🚀 ONE-CLICK INSTALL: https://api.xmagnet.ai/claude The install page guides Claude users through 3 steps in under a minute: open Claude Connectors, paste the connector name, paste the server URL, sign in. A reviewer workspace is auto-provisioned on first sign-in with sample contacts, deals, campaigns, and ICP suggestions, so every tool works end-to-end with zero setup. No 2FA. No paid plan required. Free tier exposes all 35 tools. What you can do: • Prospecting — search_contacts, search_companies, search_investors, find_contacts_at_companies, enrich_contact, validate_email, find_competitors, company_intelligence • Pipeline — get_deals_pipeline, scan_deal_intent, get_ghost_pipeline, create_deal • Campaigns & sequences — create_campaign, generate_campaign_content, get_campaign_stats, get_bounce_stats, get_unsub_stats, create_sequence_draft, list_sequences • Top of funnel — suggest_icp, get_icp, create_form, list_forms, create_landing_page, list_landing_pages, show_suggestions • Operations — analyze_contacts, get_contact_details, update_contact, save_contacts_to_crm, export_contacts, get_dashboard_stats, get_credit_balance Example prompts to try: • "Find C-suite contacts at fintech companies that raised Series A in the last 6 months." • "Scan my open deals for buying intent and prioritize follow-ups." • "Generate a re-engagement campaign for contacts who opened my last newsletter but didn't reply." • "Show me my deals pipeline by stage with weighted value and win rate." • "Generate a landing page for my Q2 webinar with a registration form." Built for founders, SDRs, RevOps, and growth teams who want their CRM to take action — not just store records. Install: https://api.xmagnet.ai/claude · Site: https://xmagnet.ai · Privacy: https://xmagnet.ai/privacy-policy · Terms: https://xmagnet.ai/terms-of-service · Support: ashish.sinha@xmagnet.ai

MCP server for Tomba email finder, verification, and contact enrichment API

Find SMBs by name, city, and business type in the Lead Stampede directory via public MCP tools.

Read calls, contacts, users, teams and numbers; tag calls and create or update contacts.

API-first CRM for LLMs - contacts, companies, deals and activities over a native MCP server.

B2B people and company data for AI agents. Search 700M+ professionals by role, company, and industry. Reveal verified work emails and direct phone numbers inline. Free to search, 1 credit per verified reveal. Supports Claude Desktop, Claude Code, Cursor, and any MCP client.

Scheduling, availability, clients, billing and CRM for appointment-based services.

Behavioral intelligence for client-facing professionals. Know who you're walking into.

Remote MCP server to enrich company profiles with structured B2B data and confidence scores.

Human-in-the-loop LinkedIn outreach and a built-in sales CRM for AI agents. Safety-gated, anti-spam.

Playbook engine: non-dev founders land first paying customer in 60 days or refund

Fuzzy entity resolution and dedupe for names, addresses, and company records — the "is this the same person/company" problem that breaks exact-match joins. Clean CRM exports, merge duplicates, reconcile vendor lists. Pay-per-call via x402 (USDC on Base): $0.008/call, no account or API key. tools/list and /openapi.json are free for discovery.

Search CodeStringers' Zoho & custom-software content and business details, live.

Agent-native CRM + get-booked platform. Operate over MCP, or pay per call via x402. No login.

Marketplace MCP server for live venture-capital raises and agent-mediated dealflow.

Find verified global B2B buyers by category & country. Free anonymous discovery. SGX-listed.

AI-powered MCP server for trade businesses. Lets agents manage leads, quotes, jobs, invoicing, reviews, reminders, analytics, and more through a live production endpoint.

LinkedIn data for AI agents: structured profiles, people search, companies, and posts over MCP or REST. 500 free credits, no card.

WhatsApp (Web + Business API), SMS, contacts, and call records via 2Chat's MCP server.