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Fact Verification MCP

by io.github.FoundryNet

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Server Details

Verify claims with verdict, confidence & cited sources; batch verify, source checks, daily brief.

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Status: Unhealthy
Uptime: 0.0% over 63 days
Last Tested: 2026-10-19 20:30
Transport: Streamable HTTP
URL
Server Listing: Fact Check MCP

TDQS

A4.5/5.0

Scored 2026-07-29 14:55 across 6 tools

Disambiguation5/5

Each tool has a clearly distinct purpose: batch and single claim verification, source credibility check, daily briefs (full and summary), and network info. No overlapping functionality.

Naming Consistency5/5

All tool names follow a consistent snake_case verb_noun pattern (e.g., verify_claim, batch_verify, source_check). The convention is uniform and descriptive.

Tool Count5/5

With 6 tools, the set is well-scoped for a fact verification server. Each tool serves a necessary function without redundancy or bloat.

Completeness4/5

The tool set covers core verification workflows: single and batch claims, source credibility, daily briefs, and network info. A minor gap is the lack of a tool to retrieve historical or cached claims individually, but overall it's thorough.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

5 tool updatesJul 16, 2026

Changedbatch_verify1 field changed

changedInput schema / properties / payment_tx / description

Previous value: -"Solana tx signature, when re-calling after a 402."New value: +"payment transaction signature, when re-calling after a 402."

Changedbrief_summary1 field changed

changedInput schema / properties / payment_tx / description

Previous value: -"Solana tx signature, when re-calling after a 402."New value: +"payment transaction signature, when re-calling after a 402."

Changeddaily_brief1 field changed

changedInput schema / properties / payment_tx / description

Previous value: -"Solana tx signature, when re-calling after a 402 (x402 rail)."New value: +"payment transaction signature, when re-calling after a 402."

Changedsource_check1 field changed

changedInput schema / properties / payment_tx / description

Previous value: -"Solana tx signature, when re-calling after a 402."New value: +"payment transaction signature, when re-calling after a 402."

Changedverify_claim1 field changed

changedInput schema / properties / payment_tx / description

Previous value: -"Solana tx signature, when re-calling after a 402."New value: +"payment transaction signature, when re-calling after a 402."

1 tool updateJun 22, 2026
- Addedbrief_summary

1 tool updateJun 21, 2026

Changeddaily_brief2 fields changed

changedInput schema / properties / payment_tx / description

Previous value: -"Solana tx signature, when re-calling after a 402."New value: +"Solana tx signature, when re-calling after a 402 (x402 rail)."

addedInput schema / properties / stripe_token

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "default": null,
+  "description": "Stripe Checkout Session id (cs_…), when re-calling after\npaying the Stripe payment link (alternative to x402). Can also be\nsupplied via the X-Stripe-Token header."
+}

5 tool updatesJun 19, 2026
- First observedbatch_verify
- First observeddaily_brief
- First observedmint_info
- First observedsource_check
- First observedverify_claim

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