For a CRM API, HubSpot offers a CRM-focused platform with its own CRM API actions for contacts, companies, and pipelines 4, and Relm is an API-first CRM with REST and native MCP access for AI agents 5. Apideck's unified API covers accounting systems, not CRMs in general, though its catalog does list a CRM API spanning 21 CRM platforms 1.
- 1
HubSpothubspot.comverified and signed
HubSpot's CRM exposes custom API calls and record lookups by ID, email, domain or name, with association traversal 4.
+58 community tools built for it
for agents: crm-lookup · custom_api_call · custom-object-management
- 2
Apideck CRM APIapideck.comverified and signed
A unified CRM API that manages contacts, companies, opportunities, leads and pipelines across 21 CRM platforms including Salesforce, HubSpot, Pipedrive and Zoho 1.
+1 community tools built for it
for agents: CRM API · CRM operations · Ecommerce API
- 3
Relmrelmcrm.comwebsite read, tools not yet checked
An API-first CRM that reads and writes contacts, companies, deals and activities over REST or native MCP, with a free tier 5.
official:MCP server · Relm CRM
- 4
Conduytconduyt.appverified and signed
A CRM with a documented API catalog of over 90 domains, with endpoint schemas and key permission checks 2.
official:package · Conduyt CRM
for agents: conduyt_api_catalog · conduyt_check_permissions · conduyt_fromk_connect
Sources
- 1The Unified API for all the accounting integrations you needapideck.com · read 2026-10-29
- 2Conduyt — CRM for Revenue Teams | Conduytconduyt.app · read 2026-10-29
- 4HubSpot | Software & Tools for your Business - Homepagehubspot.com · read 2026-10-29
- 5Relm - The CRM your AI agent runs | REST + native MCPrelmcrm.com · read 2026-10-29
For agents: the 10 actions behind this answer
CRM API · Apideck verified and signed
Manage contacts, companies, opportunities, leads, and pipelines across 21 CRM platforms.
conduyt_api_catalog · Conduyt CRM verified and signed
Discover all Conduyt CRM API endpoints across 90+ domains, with full request and response schemas. Call this first to learn what the CRM can do — the response carries the exact, current endpoint counts. NOTE: the catalog is the full REST surface; not every endpoint has a dedicated MCP tool. Call con
add-new-jit-ee-api · add-new-jit-ee-api verified and signed
Add a new API to the JIT-VM (aka JIT-EE) interface in the codebase.
crm-lookup · crm-lookup verified and signed
Find a specific CRM record by ID, email, domain, or name fragment, and traverse associations for the full account picture.
· Relmcrm website read, tools not yet checked
Relm is an API-first CRM built for LLMs and AI agents. Connect Claude, ChatGPT, or any agent - OAuth sign-in or an API key - and it reads and writes contacts, companies, deals and activities over REST or native MCP. Free tier, no credit card.
Leads Pipeline API · Go-Orca verified and signed
Read and update leads in the Go-Orca CRM pipeline. Requires authentication via /api/agent/auth. e.g. List all new leads from this week e.g. Mark lead from Premier Fence as contacted
contactsAdd · CRM API verified and signed
Create contact
create-api-key · Email Sending MCP found in code, not yet checked
custom_api_call · SendGrid (Activepieces) verified and signed
Custom API Call — Make a custom API call to a specific endpoint
customersOne · Customer Support verified and signed
Get Customer Support Customer
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.