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Claim Grounding

by io.github.truepointmarketingpartners-dotcom
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Fact-check AI answers with cited sources. Pay per call in USDC on Base via x402.

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Status
Healthy
Last Tested
Transport
Streamable HTTP · MCP 2025-11-25
URL
Repository
truepointmarketingpartners-dotcom/prospect-intelligence
GitHub Stars
0

TDQS

Score is being calculated.

Available Tools

4 tools
check_answerCheck answer
Read-onlyIdempotent
Inspect

Fact-check a whole answer: extracts every checkable claim and verifies each one against public Wikipedia sources, returning a verdict, confidence, quote and source URL per claim plus suggested next actions. Use it to audit chatbot or RAG output before showing it to a user. Price: $1.00 USDC on Base per call via x402; this MCP call returns payment instructions and the paid HTTP route POST /v1/check_answer returns the per-claim results. Read-only.

ParametersJSON Schema
NameRequiredDescriptionDefault
answerYesThe full answer text to fact-check. Each factual sentence is checked separately.

Output Schema

ParametersJSON Schema
NameRequiredDescription
toolYesTool name.
resultNoPaid result: { result_id, mode, claims: [{ text, verdict, confidence, citations[] }], next_actions, receipt }.
statusYespayment_required: pay the HTTP route with x402 to get the result. ok: result is included.
messageYesHuman-readable summary.
paymentNoPayment instructions. MCP tools/call does not charge or run the paid work; call the HTTP route with x402.
deep_verifyDeep verify
Read-onlyIdempotent
Inspect

Multi-source verification of up to three claims in a text against Wikipedia, Wikidata, Google News, Europe PMC (PubMed studies), FRED (US economic data) and SEC EDGAR (US company filings). Returns verdict, confidence, evidence for and against with quotes and URLs, and flags contradiction when sources disagree. Async: the paid call returns a job_id; poll GET /v1/jobs/{job_id} for free until status is succeeded. Price: $0.75 USDC on Base per call via x402; this MCP call returns payment instructions for POST /v1/deep_verify. Read-only. Not legal, medical or compliance advice.

ParametersJSON Schema
NameRequiredDescriptionDefault
answerYesThe claim or short text to verify (up to three claims are checked).

Output Schema

ParametersJSON Schema
NameRequiredDescription
toolYesTool name.
resultNoPaid result: { mode: 'deep', status: 'queued', job_id, receipt }. Poll GET /v1/jobs/{job_id} for { verdict, confidence, contradiction, evidence_for[], evidence_against[], citations[] }.
statusYespayment_required: pay the HTTP route with x402 to get the result. ok: result is included.
messageYesHuman-readable summary.
paymentNoPayment instructions. MCP tools/call does not charge or run the paid work; call the HTTP route with x402.
extract_claimsExtract claims
Read-onlyIdempotent
Inspect

Split a text (for example an AI-generated answer) into atomic factual claims, each with its character span and a grounding_required flag that says whether it is a checkable fact (questions, greetings and opinions are flagged false). Use it before verify_claim to decide what to check. Price: $0.05 USDC on Base per call via x402; this MCP call returns payment instructions and the paid HTTP route POST /v1/extract_claims returns the claims. Read-only, no side effects.

ParametersJSON Schema
NameRequiredDescriptionDefault
textYesThe text to split into claims, for example a chatbot answer. Up to a few thousand characters.

Output Schema

ParametersJSON Schema
NameRequiredDescription
toolYesTool name.
resultNoPaid result: { claims: [{ claim_id, text, span: { start, end }, grounding_required }], priced_usd }.
statusYespayment_required: pay the HTTP route with x402 to get the result. ok: result is included.
messageYesHuman-readable summary.
paymentNoPayment instructions. MCP tools/call does not charge or run the paid work; call the HTTP route with x402.
verify_claimVerify claim
Read-onlyIdempotent
Inspect

Check one factual claim against public Wikipedia sources and return a verdict (supported, contradicted, outdated, mixed or insufficient_evidence), a confidence score, a short reason, the supporting quote and the source URL. Says insufficient_evidence instead of guessing. Price: $1.00 USDC on Base per call via x402; this MCP call returns payment instructions and the paid HTTP route POST /v1/verify_claim returns the verdict. For a multi-source check use deep_verify. Read-only.

ParametersJSON Schema
NameRequiredDescriptionDefault
claimYesOne factual sentence to check.

Output Schema

ParametersJSON Schema
NameRequiredDescription
toolYesTool name.
resultNoPaid result: { mode, claim: { text, verdict, confidence, rationale_short, citations[] }, why, source, receipt }.
statusYespayment_required: pay the HTTP route with x402 to get the result. ok: result is included.
messageYesHuman-readable summary.
paymentNoPayment instructions. MCP tools/call does not charge or run the paid work; call the HTTP route with x402.

Tool Schema Changelog

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

  1. 4 tool updates
    • First observedcheck_answer
    • First observeddeep_verify
    • First observedextract_claims
    • First observedverify_claim

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