Privi Anchor
REMOTE · PRIVI-ANCHOR.ONRENDER.COM
Hash anchoring and proof-of-existence on chain for AI agents and apps. Free with an API key.
Available components
Last scanned (9 hours ago)
Scores higher than 64% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Crypto and Web3
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. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation. 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 Usability73
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 506 tokens (~126/item across 4 items; 4 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 Management33
- Stability observed for 10 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
- Structured output schemas are declared (50% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Checks we ran (13)
- TLS certificate
- Authorization
- HTTPS
- HSTS header
- DNSSEC
- Transport
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
Does not apply to this hosted endpoint (2)
- Supply Chain SecurityScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
- Provenance & TransparencyScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
The score does not measure everything. What the score does not measure →
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.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 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.
- 28 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 26 Oct 26 71
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://privi-anchor.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 privi-anchor.onrender.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | Trust anchor | 20326, 38696 | 8, 8 | Verified |
| com. | DS published | 19718 | 13 | Verified |
| onrender.com. | No DS | 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://privi-anchor.onrender.com/mcp | Verified | 200 | |
| http (plaintext) | http://privi-anchor.onrender.com/mcp | HTTPS enforced | 301 | https://privi-anchor.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 →
anchor_hash_text Hash text ~50
SHA-256 of a piece of text, ready to pass to anchor_hashes. Hashing happens here; nothing is stored.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Exact text to fingerprint (UTF-8) |
Structured output declared, but exposes no named fields.
No examples provided.
anchor_hashes Anchor hashes ~110
Anchor up to 100 hashes on chain (Base until the Privi chain mainnet) in one transaction. Returns, for each hash, a receipt (tx_hash, Merkle proof, block, time) that anyone can check with anchor_verify. Requires an API key (Authorization: Bearer).
| Name | Type | Req | Description |
|---|---|---|---|
| hashes | array | yes | 1-100 hex SHA-256 hashes of the content to anchor |
| label | string | – | Optional note kept in this server's index (not on chain) |
No output schema declared.
No examples provided.
anchor_status Anchor status ~28
Which chain anchors go to, the service wallet that signs them, its gas balance, and totals.
Input schema present but exposes no named parameters.
Structured output declared, but exposes no named fields.
No examples provided.
anchor_verify Verify an anchor ~92
Check on the blockchain that a hash was anchored, by whom and when. Free. With tx_hash and proof from a receipt, the check uses only chain data.
| Name | Type | Req | Description |
|---|---|---|---|
| hash | string | yes | The 64-character hex SHA-256 that was anchored |
| proof | – | – | Optional: Merkle proof from the receipt |
| tx_hash | – | – | Optional: transaction from the receipt, to verify without this server's index |
No output schema declared.
No examples provided.
How do I install the Privi Anchor MCP server?
Privi Anchor is a hosted endpoint at https://privi-anchor.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 · privi-anchor.onrender.com
claude mcp add --transport http canoydario847-cloud-privi-anchor 'https://privi-anchor.onrender.com/mcp'
What is the Privi Anchor MCP server?
Privi Anchor is an MCP server listed in the public MCP registry as io.github.canoydario847-cloud/privi-anchor. Hash anchoring and proof-of-existence on chain for AI agents and apps. Free with an API key. This page covers its hosted endpoint (https://privi-anchor.onrender.com/mcp).
Is the Privi Anchor MCP server safe to use?
Privi Anchor scores 75 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 Privi Anchor MCP server expose?
Privi Anchor exposes 4 tools: anchor_status, anchor_hash_text, anchor_verify, anchor_hashes. Their descriptions and schemas cost roughly 280 tokens of context every time the server is loaded.
Does the Privi Anchor MCP server require authentication?
No. We connected to Privi Anchor without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Privi Anchor MCP server still maintained?
Privi Anchor 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.
What did VerifyMCP test on the Privi Anchor MCP server?
VerifyMCP ran 13 checks on Privi Anchor, covering TLS certificate, Authorization, HTTPS, HSTS header and 9 more. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.