Alternatives to Gripp MCP by usefulapi
Read projects, invoices, hours and contacts; register hours, create tasks in Gripp.
Gripp MCP by usefulapi is tagged API, Productivity. The servers below cover similar ground, ranked by how many tags they share with it, then by GitHub stars.
Able and Agent
by com.ableandagent
Agents commission Humans for real-world tasks. San Diego, invite-only; elsewhere, register interest.
https://mcp.ableandagent.com/Abstract API MCP by usefulapi
by io.usefulapi
Validate emails, phones, IBAN, VAT; look up IPs and companies; rates, holidays, time via Abstract.
https://abstract-api.usefulapi.io/mcpabundance-apis
by com.abundanceapis
Try 26 utility REST APIs keylessly: NAICS classification, IP geo, email validation, currency.
https://abundanceapis.com/mcpAccelo MCP by usefulapi
by io.usefulapi
Manage Accelo companies, contacts, jobs, tasks, tickets and time.
https://accelo.usefulapi.io/mcpAcuity Scheduling MCP by usefulapi
by io.usefulapi
Read appointments, types, calendars and availability; create, cancel or reschedule bookings.
https://acuity-scheduling.usefulapi.io/mcpAddEvent MCP by usefulapi
by io.usefulapi
Read AddEvent calendars, events, RSVPs and subscribers; create and update calendars and events.
https://addevent.usefulapi.io/mcpAgency Handy
by com.agencyhandy
Agency CRM, projects, tasks, invoices and proposals. Sign in with Agency Handy or use an API key.
https://mcp.agencyhandy.com/AgencyBloc MCP by usefulapi
by io.usefulapi
Read and update AgencyBloc individuals, groups, policies and agents; log activities and notes.
https://agencybloc.usefulapi.io/mcpAgent Email List — Free SMTP Relay for AI Agents
by com.agentemaillist.ai
Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.
https://ai.agentemaillist.com/mcpagent-mail
by dev.mailkite
Give an AI agent its own inbox — receive email as a webhook, send over a verified domain.
https://mcp.mailkite.dev/mcp?ref=agent-mailAgentBrink
by com.agentbrink.www
Give your AI agent an identity: its own email, webhook, repo, secrets vault, memory and skills.
https://api.agentbrink.com/mcpAgentContinuity
by net.agentcontinuity
Private memory, scratchpads, context export/restore and task handoff for AI agents.
https://api.agentcontinuity.net/mcp