SCRIPTMASTERLABS — ClaimGate
REMOTE · CLAIMGATE.ONRENDER.COM
Fact-check claims against live web sources: verbatim evidence, coherence-gated verdict.
Available components
Last scanned (5 hours ago)
Scores higher than 55% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Search and Retrieval
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security74
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability67
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 729 tokens (~145/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management13
- Stability observed for 4 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 0
- Tool “fact_check_claim” rewrote its description, which is the text the model reads security
- Schema quality: 128 → 145 ▼ functional
- 2 Nov 26 0
- Stability: unverified → 0.03 ▲ functional
- 1 Nov 26 69
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://claimgate.onrender.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=onrender.com | CN=WE1,O=Google Trust Services,C=US | 21 Sept 2026 | 20 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 6eb1e3fe7d0631ea1337bfa4a321c137 |
| SANs: onrender.com, *.onrender.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of claimgate.onrender.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| onrender.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://claimgate.onrender.com/mcp | Verified | 200 | |
| http (plaintext) | http://claimgate.onrender.com/mcp | HTTPS enforced | 301 | https://claimgate.onrender.com/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
fact_check_claim Fact Check Claim ~373
PAID tool ($0.25 USDC via x402 — pay in USDC on Base, USDC on Arc, USDC on Solana, XRP on XRPL at the live spot rate, or XAH on Xahau at the live spot rate). Fact-check a claim against live web sources: the claim is decomposed into sub-claims, sources are fetched live, Jev jurors judge per-source-family entailment with verbatim-quote evidence that must pass an anti-hallucination substring gate, and the verdict is coherence-gated (coherence = |sum(w*d)| / sum(w) over source families, weights 3/2/1 by source class) and sealed as a stored receipt. Send the x402 PAYMENT-SIGNATURE header on the /mcp request; without payment the call returns the canonical x402 challenge (HTTP 402 with five accepts: Base USDC amount 250000 = $0.25, Solana USDC amount 250000, XRPL XRP in drops at the live spot rate, Arc USDC amount 250000, and Xahau XAH in drops at the live spot rate, each to that rail canonical SML receiver). If the jury is not configured the call fails before any payment is requested, so nobody pays for a check that cannot run.
| Name | Type | Req | Description |
|---|---|---|---|
| claim | string | yes | The claim to fact-check, as a single statement or a short paragraph. |
| sources | array | – | Optional public HTTPS source URLs to check against (max 8). When omitted or fewer than 2 are usable, ClaimGate searches the live web. |
| sub_claims | array | – | Optional caller-provided decomposition of the claim into sub-claims (max 4). When omitted, the claim text is split into sentences. |
No output schema declared.
No examples provided.
fact_check_methodology Fact Check Methodology ~57
The full public ClaimGate methodology: coherence formula, source-class weights, verdict thresholds, the anti-hallucination verbatim-quote gate, family independence rules, and honest limits. calibrated:false — thresholds are stated, not fitted.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
fact_check_preview Fact Check Preview ~120
Free preview: decompose a claim into sub-claims, fetch the sources live (or search for them), classify each source and group sources into independent families, and show exactly what a paid fact_check_claim would check. No verdict, no jury calls, no payment.
| Name | Type | Req | Description |
|---|---|---|---|
| claim | string | yes | The claim to fact-check, as a single statement or a short paragraph. |
| sources | array | – | Optional public HTTPS source URLs to check against (max 8). When omitted or fewer than 2 are usable, ClaimGate searches the live web. |
No output schema declared.
No examples provided.
fact_check_receipt Fact Check Receipt ~76
Fetch a stored ClaimGate receipt by receipt_id (the sealed record of a paid fact check: sub-claims, sources, per-family verdicts with validated verbatim quotes, coherence, verdict, and payment).
| Name | Type | Req | Description |
|---|---|---|---|
| receipt_id | string | yes | Receipt id returned by fact_check_claim, e.g. cg_..._........ |
No output schema declared.
No examples provided.
fact_check_status Fact Check Status ~43
Check whether ClaimGate is live, whether the Jev jury is configured, which x402 facilitator is selected, how many receipts are stored, and the paid-check price.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the SCRIPTMASTERLABS — ClaimGate MCP server?
SCRIPTMASTERLABS — ClaimGate is a hosted endpoint at https://claimgate.onrender.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · claimgate.onrender.com
claude mcp add --transport http com-scriptmasterlabs-claimgate 'https://claimgate.onrender.com/mcp'
What is the SCRIPTMASTERLABS — ClaimGate MCP server?
SCRIPTMASTERLABS — ClaimGate is an MCP server listed in the public MCP registry as com.scriptmasterlabs/claimgate. Fact-check claims against live web sources: verbatim evidence, coherence-gated verdict. This page covers its hosted endpoint (https://claimgate.onrender.com/mcp).
Is the SCRIPTMASTERLABS — ClaimGate MCP server safe to use?
SCRIPTMASTERLABS — ClaimGate scores 70 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the SCRIPTMASTERLABS — ClaimGate MCP server expose?
SCRIPTMASTERLABS — ClaimGate exposes 5 tools: fact_check_claim, fact_check_preview, fact_check_status, fact_check_methodology, fact_check_receipt. Their descriptions and schemas cost roughly 669 tokens of context every time the server is loaded.
Does the SCRIPTMASTERLABS — ClaimGate MCP server require authentication?
No. We connected to SCRIPTMASTERLABS — ClaimGate without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the SCRIPTMASTERLABS — ClaimGate MCP server still maintained?
SCRIPTMASTERLABS — ClaimGate is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.