Which marketing platforms work with wmcp.sh?

HubSpot and Salesforce CRMs via OpenAPI, Mailchimp and SendGrid for email, and Stripe for revenue attribution. wmcp.sh is not affiliated with HubSpot, Salesforce, Mailchimp, SendGrid, or Stripe.

Can agents send emails directly?

Yes, via the SendGrid or Mailchimp adapters with stored API keys. Tokens stay in the wmcp.sh encrypted credentials vault — agents never see raw keys.

Industry · Marketing

Agents for Multi-Channel Marketing.

Connect HubSpot, Salesforce CRM, Mailchimp, SendGrid, and Stripe revenue data to LLM agents using the Model Context Protocol (MCP). Sub-100ms endpoints for real-time campaign attribution and copy generation.

The Pipeline

Unified Marketing Stack.

Multi-channel execution

Give agents the ability to draft copy, sync audiences in Mailchimp/SendGrid, and update lead statuses in HubSpot—all seamlessly via standard MCP tools.

Revenue attribution

Link campaign deployments with actual Stripe checkout events in real-time. Cloudflare Workers cache queries with a short TTL (~1s) ensuring agents always see fresh performance metrics.

Tools

Marketing capability integrations.

System	Capabilities	API Speed
HubSpot via OpenAPI	Lead lookup, timeline events, list segmentation, contact creation	✅ Under 100ms
Salesforce CRM	Account records, opportunity tracking, custom objects integration	✅ Under 100ms
Mailchimp / SendGrid	Subscriber sync, transactional email dispatch, campaign analytics	✅ Under 100ms
Stripe Revenue	Subscription lifecycle events, payment intents, customer LTV tracking	✅ Under 100ms (short-TTL cache, ~1s)

Why MCP?

Agentic marketing workflows.

Traditional workflows:

Manual copy pasting between ChatGPT, Docs, and CRMs.
Siloed attribution where marketing emails and Stripe conversions sit in separate platforms.
Static API scripts that require constant developer maintenance when endpoints change.

wmcp.sh enabled agents:

Agent drafts copy, pulls real-time LTV from Stripe, and updates the Salesforce contact in one autonomous loop.
Uses our encrypted credentials vault for secure static key storage without exposing tokens.
Auto-updates tool schemas dynamically via /integration/openapi without hardcoding.

Try wmcp.sh

Ingest a CRM spec instantly.

# Pass a public OpenAPI CRM spec to convert all paths into MCP tools
curl 'https://wmcp.sh/api/v1/tools?url=https://api.hubspot.com/openapi/crm/v3/contacts.yaml'

# Example response: Tools for 'create_contact', 'update_contact', 'search_contacts', etc.

FAQ

Common marketing questions.

How do agents authenticate with HubSpot or Mailchimp?

For static service-level integrations (like internal marketing agents), use our encrypted credentials vault to supply API keys safely without passing them to the LLM directly.

Can agents act autonomously on my Salesforce instance?

Agents act only based on the tool schemas provided. We recommend using read-only API keys or strict scoping, combined with human-in-the-loop approvals for destructive actions. Need help configuring this? See our /managed plans starting at $499 one-time.

Disclaimer: wmcp.sh is not affiliated with HubSpot, Salesforce, Mailchimp, SendGrid, Stripe, OpenAI, or Anthropic. All product names and brands are property of their respective owners.