
The open, direct alternative to MCP for tool calling
Source month: June 2026 · Source: Similarweb estimate
This is whole-site traffic for utcp.io; it does not measure this feature's usage, users, or customers.
Data status: Valid estimate · Updated: 2026-07-09
Current Estimated Visits
4.2K
Previous Estimated Visits
2.4K
Absolute Gain
+1.8K
Monthly Growth
+75.5%
UTCP (Universal Tool Calling Protocol) is an open standard for AI agents to call tools directly, positioned as a lightweight alternative to MCP. It eliminates the "wrapper tax" for lower latency by using a simple JSON manifest to connect to native APIs.
UTCP (Universal Tool Calling Protocol) is an open standard for AI agents to call tools directly, positioned as a lightweight alternative to MCP. It eliminates the "wrapper tax" for lower latency by using a simple JSON manifest to connect to native APIs.
Similarweb estimates that utcp.io received approximately 4.2K website visits in June 2026. Its estimated global website rank was #4,379,691. This is traffic for the whole parent site, not a measure of UTCP feature usage, users, or customers.
Yes, UTCP is free to use.
These tools share a topic with UTCP: Embedded iPaaS from Albato, Gemini Deep Research Agent, Airtop Auth, Scam AI . Open each profile to review its available information and official site.
Avg. Duration
22s
Pages per Visit
1.68 pages
Bounce Rate
49.4%
Category Rank
N/A
Global Rank
#4.4M
Rank
#2.7M
Domain Created
Jul 2, 2025
Domain Age
1.0 years