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Market around effectfence

Rust library and stdio MCP server that prevents duplicate side effects in multi-agent tool calls using causal fencing, intent tracking, leases, and replayed outcomes.

Visit github.com ↗Pricing page ↗

Explore the market

Prices and medians update for the tier you select.

Compare at
effectfence · Pro
No Pro plan
—
Pro-MCP server median
—
insufficient comparable pricing
vs Pro MCP servers
No comparison
effectfence doesn't sell Pro
ⓘ Comparisons are same provider type (MCP server) and same buyer tier (Pro). Never across tiers.
Market density
0th pctile
0 strong substitutes
Price momentum · 31d
+111.1%
MCP servers · Pro median
$7.9/mo
1 priced · $7.9–$7.9 mid 50%
Platforms · Pro median
$15.5/mo
2 priced · $13.75–$17.25 mid 50%
Frameworks · Pro median
$19/mo
1 priced · $19–$19 mid 50%
Price spectrum · Pro plans · 4 of 7 providers priced · log scale · $7.9 → $19/mo
MCP servers Platforms Frameworks◻ shaded = middle 50% · line = median (all types)effectfence has no comparable Pro price — not plotted

Products in this market

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

MMCP servers10Ranked by relevance
effectfencethis listing
● MCP · relevance 100%
no public price
hythe
● MCP · relevance 65%
no public price
retasc
● MCP · relevance 63%
no public price
AG
agent_surety
● MCP · relevance 62%
no Pro plan
entry $10/mo
linklore
● MCP · relevance 62%
$7.9/mo Pro
bothread
● MCP · relevance 62%
no public price
forkit
● MCP · relevance 61%
no public price
MandateGuard
● MCP · relevance 61%
no public price
rust_mcp_server
● MCP · relevance 61%
no public price
agentic_ecos
● MCP · relevance 61%
no public price
FFrameworks21Ranked by relevance
Kungfu
● FRAMEWORK · relevance 67%
no public price
causal_continuity_engine
● FRAMEWORK · relevance 65%
no public price
overmind
● FRAMEWORK · relevance 64%
no public price
opencode_raven
● FRAMEWORK · relevance 63%
no public price
ethos_agent
● FRAMEWORK · relevance 63%
no public price
Longtime
● FRAMEWORK · relevance 63%
no public price
skelegent
● FRAMEWORK · relevance 63%
no public price
turnloop
● FRAMEWORK · relevance 62%
no public price
mcp_framework
● FRAMEWORK · relevance 62%
no public price
tanstack_ai
● FRAMEWORK · relevance 62%
no public price
AgentGuard SDK
● FRAMEWORK · relevance 62%
no public price
assay
● FRAMEWORK · relevance 62%
no public price
actionrail
● FRAMEWORK · relevance 62%
no public price
agents_pack
● FRAMEWORK · relevance 62%
no public price
unlost
● FRAMEWORK · relevance 61%
no public price
liz
● FRAMEWORK · relevance 61%
no public price
boucle_framework
● FRAMEWORK · relevance 61%
no public price
awaken
● FRAMEWORK · relevance 61%
no public price
firstmate
● FRAMEWORK · relevance 61%
no public price
thumbgate
● FRAMEWORK · relevance 61%
$19/mo Pro
agent_coherence
● FRAMEWORK · relevance 61%
no public price
OOther9Ranked by relevance
paradox_engine
● OTHER · relevance 64%
no public price
refactor_autonomous_agent_exec
● OTHER · relevance 63%
no public price
ai_agent_workflow
● OTHER · relevance 63%
no public price
Enozunu
● OTHER · relevance 62%
no public price
invock
● OTHER · relevance 62%
no public price
LOCUS Engine
● OTHER · relevance 62%
no public price
docmancer
● OTHER · relevance 61%
no public price
loom_vcs
● OTHER · relevance 61%
no public price
dibs
● OTHER · relevance 61%
no public price
PPlatforms9Ranked by relevance
opencode_solo
● PLATFORM · relevance 63%
no public price
Parley
● PLATFORM · relevance 63%
$19/mo Pro
+23% vs Pro median
Muster
● PLATFORM · relevance 62%
no public price
tura
● PLATFORM · relevance 62%
no public price
Flocker
● PLATFORM · relevance 62%
$12/mo Pro
-23% vs Pro median
willder
● PLATFORM · relevance 62%
no Pro plan
entry $99/mo
railwarden
● PLATFORM · relevance 62%
no public price
Bernstein
● PLATFORM · relevance 61%
$25 one-time Pro
not monthly-comparable
flock
● PLATFORM · relevance 61%
no public price
AAgents1Ranked by relevance
hermes_agent_rust
● AGENT · relevance 62%
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.