Comparison

Relm vs Attio

The modern CRM for teams

Attio nails the UX. Its API is decent but object-heavy — everything is a record with attributes, which is powerful for data modeling and awkward for the 80% of use-cases that just need contacts and deals.

FeatureRelmAttio
Time to first API call< 2 minutes~10 minutes (workspace + object setup)
Sensible defaultsContacts, companies, deals, activities out of the boxYou define everything
MCP serverNative, OAuth 2.1Community-maintained
Idempotency-KeyYesYes
Typed URL filtersYes: filter[stage][eq]=wonJSON body filters
Signed webhooksYes + retry queue + UI replayYes
OpenAPI specPublicPublic
PricingFlat + usagePer-seat