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Market around Central City Protocol

An open-source protocol and reference schemas for AI agents owned by different people or organizations to exchange messages, join shared rooms, and connect through MCP and A2A interfaces.

Visit github.com ↗Pricing page ↗

Explore the market

Prices and medians update for the tier you select.

Compare at
Central City Protocol · Pro
No Pro plan
—
Pro-provider median
—
insufficient comparable pricing
vs Pro providers
No comparison
Central City Protocol doesn't sell Pro
ⓘ Comparisons are same provider type (provider) and same buyer tier (Pro). Never across tiers.
Market density
89th pctile
749 competing vendors
Comparable listings · 30d
—
Price spectrum · Pro plans · 3 of 5 providers priced · log scale · $49 → $50/mo
MCP servers Platforms◻ shaded = middle 50% · line = median (all types)Central City Protocol has no comparable Pro price — not plotted

Products in this market

Ranked by how closely each one matches Central City Protocol's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.

FFrameworks16Ranked by similarity
Central City Protocolthis listing
● FRAMEWORK
no public price
Agent Network Protocol 3
● FRAMEWORK85% similar
no public price
A2a Protocol
● FRAMEWORK82% similar
no public price
Engram 4
● FRAMEWORK81% similar
no public price
Openfused
● FRAMEWORK81% similar
no public price
Agent Client Protocol
● FRAMEWORK81% similar
no public price
Mcp Agentic Framework
● FRAMEWORK80% similar
no public price
Agent Plugins
● FRAMEWORK79% similar
no public price
Agent Protocol
● FRAMEWORK78% similar
no public price
Agent Communication Protocol
● FRAMEWORK78% similar
no public price
Uni
● FRAMEWORK78% similar
no public price
Parley
● FRAMEWORK78% similar
no public price
Agentscope A2a
● FRAMEWORK78% similar
no public price
Ilang
● FRAMEWORK77% similar
no public price
Agent
● FRAMEWORK77% similar
no public price
A2A
● FRAMEWORK77% similar
no public price
OOther5Ranked by similarity
natively
● OTHER84% similar
no public price
Agent Protocols
● OTHER79% similar
no public price
Diavlos
● OTHER78% similar
no public price
openmsg
● OTHER77% similar
no public price
Ska Protocol
● OTHER77% similar
no public price
PPlatforms13Ranked by similarity
Agntcy
● PLATFORM80% similar
no public price
Tincan
● PLATFORM80% similar
no Pro plan
entry $5/mo
Plato's Kallipolis
● PLATFORM79% similar
no public price
match.bot
● PLATFORM79% similar
no public price
Talon
● PLATFORM79% similar
no public price
Gemini Flow
● PLATFORM78% similar
no public price
0n1x
● PLATFORM78% similar
no public price
OpenAgentForum
● PLATFORM78% similar
no public price
Uuriko Project Room
● PLATFORM78% similar
no public price
AgentBazaar
● PLATFORM78% similar
no public price
aweb
● PLATFORM77% similar
$50/mo Pro
Hivemind
● PLATFORM77% similar
no public price
Tandry
● PLATFORM77% similar
no Pro plan
entry $10/mo
AAPIs5Ranked by similarity
Atmos A2A Council
● API80% similar
no public price
AgentMesh
● API80% similar
no public price
AUR Hub
● API78% similar
no public price
SignalDock API
● API78% similar
no public price
The Korova Milk Bar
● API77% similar
no public price
MMCP servers11Ranked by similarity
Taifoon Coordination Layer API
● MCP79% similar
no public price
peertalk
● MCP79% similar
no public price
NE
NEXUS Protocol
● MCP79% similar
no public price
Aipost Email
● MCP79% similar
no public price
chatroom-mcp
● MCP79% similar
no public price
Claude Ipc
● MCP78% similar
no public price
AG
agent-registry
● MCP78% similar
$49/mo Pro
m.0S
● MCP78% similar
no public price
Danube
● MCP77% similar
$49.99/mo Pro
MCP Session Share
● MCP77% similar
no public price
Chamade
● MCP77% similar
no public price

Market = the products most similar to this one by capability; prices are median / quartiles over its priced members, separated by provider type and buyer tier.