hernaninverso/eleata-verify-mcp

A **grounding / hallucination guardrail** for AI agents. Give it a claim and supporting
evidence; it returns whether the evidence **Supports / Refutes / gives Not Enough Evidence**
for the claim (natural-language inference), with a confidence and an abstained flag for
low-confidence cases. Wraps the hosted eleata Claim Verifier.
> Use it as a fact-check / RAG hallucination guard: before an agent trusts or repeats a
> statement, check it against its source. Treat abstained=true (or any verdict other than
> *Supported*) as "do not rely".
Tools
| Tool | What it does |
|------|--------------|
| verify_claim(claim, evidence) | Is the claim supported by the evidence? Verdict + confidence + abstained. |
| check_groundedness(answer, context) | RAG guard: is the model's answer grounded in the retrieved context? |
| verify_strict(claim, evidence) | Same, with a higher abstention threshold — for compliance/legal where a wrong "Supported" is costly. |
Setup
Get a key at (paid channel, sent as Authorization: Bearer).
For the RapidAPI marketplace channel, set EVERIFY_RAPIDAPI=1 and EVERIFY_API_BASE to the RapidAPI host
(the key is then sent as X-RapidAPI-Key).
Notes
Confidence is **uncalibrated** on the public channels (not a probability) — rely on the verdict and the
abstained flag, not the raw number. The engine is a multilingual NLI model (mDeBERTa-v3-mnli-xnli).
verify sends your claim + evidence to the hosted API; see .
MIT licensed.