evidence-log
Tamper-evident evidence log: signed heads, proofs, and recording salted digests of your records.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"evidence-log": {
"url": "https://api.riskrouter.eu/mcp"
}
}
}Remote endpoints
https://api.riskrouter.eu/mcpstreamable-httpWhat it can do
Tool inventory
Tools (8)
🟢get_evidence_head
The current signed head of the evidence log: tree size, Merkle root and signature. Save it: any later head must be consistent with it.
Input Schema
{
"type": "object",
"properties": {}
}🟢get_inclusion_proof(leaf_index, tree_size)
Proof that the entry at leaf_index is in the tree, optionally at a given tree_size. Checkable offline with the public verifier.
Input Schema
{
"type": "object",
"properties": {
"leaf_index": {
"type": "integer",
"minimum": 0,
"description": "Position of the entry in the log."
},
"tree_size": {
"type": "integer",
"minimum": 0,
"description": "Optional: the tree size to prove against."
}
},
"required": [
"leaf_index"
]
}🟢get_consistency_proof(first, second)
Proof that the tree at size first is a prefix of the tree at size second (or now): the log never rewrote history.
Input Schema
{
"type": "object",
"properties": {
"first": {
"type": "integer",
"minimum": 0,
"description": "A tree size you hold a head for."
},
"second": {
"type": "integer",
"minimum": 0,
"description": "Optional: a later tree size."
}
},
"required": [
"first"
]
}🟢get_checkpoint
The log's signed checkpoint in the C2SP format witnesses cosign (origin, size, root).
Input Schema
{
"type": "object",
"properties": {}
}🟢get_ledger_attestation
The signed head hash of the hash-chained audit ledger of recorded quotes.
Input Schema
{
"type": "object",
"properties": {}
}🟢get_usage
How much is recorded, and by how many keys that are not ours. Counts only, nothing about anyone.
Input Schema
{
"type": "object",
"properties": {}
}🟡record_evidence(record_digest, kind, chain_tag, chain_seq)
Record the SHA-256 of a decision record you keep yourself, so it can later be shown to be unchanged. Send the digest and a short kind, never the record. Needs your RiskRouter key in the Authorization header of the MCP connection. Entries are permanent.
Input Schema
{
"type": "object",
"properties": {
"record_digest": {
"type": "string",
"pattern": "^[0-9a-f]{64}$",
"description": "SHA-256 of your salted record, lowercase hex. Never the record itself."
},
"kind": {
"type": "string",
"pattern": "^[a-z0-9][a-z0-9.-]{0,39}$",
"description": "A short tag such as ai.decision."
},
"chain_tag": {
"type": "string",
"pattern": "^[0-9a-f]{64}$",
"description": "Optional: the completeness chain this record belongs to (64 hex characters derived from a secret you keep)."
},
"chain_seq": {
"type": "integer",
"minimum": 1,
"description": "Optional, with chain_tag: this record's position in its chain, from 1."
}
},
"required": [
"record_digest",
"kind"
]
}🟢get_chain(chain_tag, from, to)
The log's signed statement of one completeness chain as of the current head: its length and, for each position, the leaf, the time and the digest. A position nobody showed you is a record left out.
Input Schema
{
"type": "object",
"properties": {
"chain_tag": {
"type": "string",
"pattern": "^[0-9a-f]{64}$",
"description": "The chain's 64-hex tag."
},
"from": {
"type": "integer",
"minimum": 0,
"description": "Optional: the first position to list."
},
"to": {
"type": "integer",
"minimum": 0,
"description": "Optional: the last position to list."
}
},
"required": [
"chain_tag"
]
}Community
Evidence