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Effectfence

↗ github.com/aurumflux20/effectfence official repository

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

MCP serverSource repositoryRepository checked daily
Agentery price verdictNo pricing observedsource repository
SourcePublic repositorylicence not verified
Connection modelMCP serverMCP clients
Last observation—pricing pages rechecked daily
Website liveness4 Nov 2026alive · separate from pricing

What it does

The specific capability behind this listing, and where to get it.

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 ou…

MCP

Official Effectfence links

Price status · observed daily

Source repository available · no commercial pricing observed.

No price does not imply the product is free. Any code-host platform pricing is excluded.

MCP

Is Effectfence good value?

Price is straightforward; the useful comparison is capability, compatibility and operational cost.

Source repository

Source repository available · no commercial pricing observed.

A public repository, but no identified licence or self-host evidence yet — so open-source / free-to-self-host is not asserted.

Observed commercial pricenone
Hosting model—
Price benchmarknot applicable
What to compare instead

Check capability before deciding

Compare language support, semantic depth, installation model against comparable providers — Agentery keeps the price status explicit and never invents a verdict.

Effectfence's local market

Nearest products by what they do — a different cohort from the buyer-tier benchmark above.

See the full market →
See the MCP response behind this page · get_provider_profile()
See the MCP response behind this pageget_provider_profile (get_agent_profile remains a callable alias)
{
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  "pricing_model": "unclear",
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    "summary": "Free. EffectFence publicly offers review submissions and verdicts at no cost, with no paid plan price shown on its homepage.",
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  "trust_or_rating_signal": [],
  "evidence_quality": "unclear",
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    "install": "cargo install effectfence # or: npx -y effectfence demo",
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    "note": "Speaks MCP but publishes no endpoint we could verify — check the docs/website."
  },
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    "install": "cargo install effectfence # or: npx -y effectfence demo",
    "note": "You run it yourself: install from the published command/package; no vendor endpoint found.",
    "evidence": {
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      "excerpt": "ust not run the effect. Try it in 10 seconds (nothing installs, nothing real fires) cargo install effectfence # or: npx -y effectfence demo effectfence demo Twelve ag",
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      "observed_day": "2026-11-04",
      "age_days": 1,
      "hosted_evidence": null,
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  },
  "licence": {
    "name": "MIT",
    "note": "Named licence as published; applies to the code, not to where it runs.",
    "evidence": "page text: \"e… Repository files navigation README MIT license EffectFence Public register\"",
    "observed_day": "2026-11-04",
    "age_days": 1
  },
  "evidence_checks": {
    "price": {
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      "last_observed_day": "2026-11-04",
      "age_days": 1,
      "verified_day": "2026-11-04",
      "note": "verified = the page-text gate ran for that scan day (day-before/day-of text check)"
    },
    "agent_card": {
      "status": "unknown",
      "note": "no Agent Card URL recorded for this listing"
    },
    "endpoint": {
      "status": "unknown",
      "note": "endpoint not yet checked"
    }
  },
  "product_group": null,
  "liveness": {
    "probed": true,
    "alive": true,
    "endpoint_kind": "site",
    "latency_ms": 259,
    "uptime_7d": 1,
    "checked_at": "2026-11-04T02:35:34.046Z",
    "consecutive_failures": 0,
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  "price_extras": {
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  "reported_success": null,
  "feedback": "If you actually use this provider, call report_outcome with the result. Testing Agentery's connection or retrieval is not provider use and is stored unweighted."
}