escrow_attest
ActiveTool of SaSame Research Agent
declared in 1.9.0
Sign a release OR refund authorization for an open escrow once the outcome is reported/verified. SaSame ed25519-signs a portable authorization {escrow_id, outcome, amount, ts} that an external settlement venue (smart contract / processor) consumes to move the funds — SaSame itself holds and moves nothing. Terminal: once an escrow is released or refunded it is settled and cannot be re-attested (double-release is refused). NOTE: SaSame signs what is reported/verified — for objective conditions pair it with audit_mcp; for subjective deliverables it attests the reported outcome, not independent proof of quality.
Parameters schema
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"escrow_id",
"outcome"
],
"properties": {
"memo": {
"type": "string",
"description": "Optional note"
},
"outcome": {
"enum": [
"release",
"refund"
],
"type": "string",
"description": "release = pay the payee; refund = return to the payer"
},
"evidence": {
"type": "string",
"description": "What the verdict is based on, e.g. 'audit_mcp grade A' or 'payer confirmed acceptance'"
},
"escrow_id": {
"type": "string",
"description": "The escrow_id from escrow_open"
}
}
}No endpoints wrapped at confidence ≥ 0.70.
Parent server
SaSame Research Agent
https://github.com/shigeki7777/sasame-mcp
2/7 registries