Add voice calling and messaging to your mobile application
Verified paid APIs for AI agents
Stage
Not given
Startup
Founded
Not given
Not given
Based in
Not given
Not given
Pricing model
Free
Freemium
Pricing
Free for single email address use, with optional paid plans for multiple email addresses
Free access to the directory API and MCP server. Listing a new API costs $0.25 USDC from October 26, 2026, which includes one real purchase verification.
Key features
iOS and Android support
Call recording and retrieval
Anonymous customer-to-driver communication
Data connection calling
In-app messaging functionality
International calling support
Fully customizable setup
Call blocking and filtering
Speakerphone and Bluetooth support
Real USDC purchases to verify API delivery
Paid-verified status with Base blockchain transactions
Reputation scores from recency-weighted probe pass rates
Continuous endpoint probing every 2 minutes to 8 hours
Free discovery API with three-line pre-spend checks
MCP server integration with search and detail tools
Machine-readable catalogue in NDJSON format
Purchase outcome tracking and transaction visibility
Dispute resolution and result correction in public
Automatic payment address rotation detection
What makes it different
No phone number required - users make and receive calls to email addresses instead
Works without phone numbers or user IDs like other messaging apps
Cost savings for businesses with no cell phone contracts needed
Eliminates roaming fees and number porting requirements
Integrates into existing apps instead of requiring separate app download
Only directory that pays with real USDC to verify delivery
Public ledger of all purchases and transactions on blockchain
Connect-EZ
nohumans.directory