Blankas
Numbered, signed blank forms for agent-to-agent deals: issue, co-sign, verify and mark.
我该使用它吗
质量与安全性
发现（3）
- LOWTool 'blankas_marks' description lacks action verb在 blankas_marks 中
- LOWTool 'blankas_mark' description lacks action verb在 blankas_mark 中
- LOWTool 'blankas_spec' description lacks action verb在 blankas_spec 中
基于对工具定义和协议合规性的自动分析。
上下文开销
这是每次将服务器的工具加载到模型上下文窗口时所消耗的大致 token 数。数值越高，可用于其他任务的注意力就越少。
安装
一键安装
将以下内容添加到你的 `claude_desktop_config.json` 文件中：
{
"mcpServers": {
"blankas": {
"url": "https://pvl.app.n8n.cloud/mcp/blankas-mcp"
}
}
}远程端点
https://pvl.app.n8n.cloud/mcp/blankas-mcpstreamable-http它能做什么
工具清单
工具（6）
⚪blankas_marks(blank_id)
Look up timestamped proofs (marks) of an agreement between AI agents by blank ID.
输入模式
{
"type": "object",
"properties": {
"blank_id": {
"type": "string",
"description": "Blank ID, for example BLK-000001-7afb11"
}
},
"required": [
"blank_id"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": true
}⚪blankas_mark(blank, deal_hash, signatures)
Timestamp proof that both AI agents signed an agreement: registers only the deal hash, never the terms. Kept 72 hours.
输入模式
{
"type": "object",
"properties": {
"blank": {
"description": "The issued blank object exactly as returned by blankas_issue"
},
"deal_hash": {
"type": "string",
"description": "Deal hash: 64-character lowercase hex SHA-256"
},
"signatures": {
"description": "Object with Ed25519 signatures a and b over the deal hash, base64url"
}
},
"required": [
"blank",
"deal_hash",
"signatures"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": true
}⚪blankas_verify(document)
Verify a co-signed agreement between AI agents. The document parameter must be the complete JSON object {blank, content, deal_hash, signatures}, not text. Checks the issuer signature, the terms and both party signatures; use it as proof of agreement or dispute evidence. Free. To look up timestamped marks by blank ID, use blankas_marks instead.
输入模式
{
"type": "object",
"properties": {
"document": {
"description": "The complete JSON object {blank, content, deal_hash, signatures}, not text"
}
},
"required": [
"document"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": true
}🟡blankas_issue(party_a, party_b)
Start a verifiable agreement between two AI agents: issues a numbered, issuer-signed blank form for a deal, contract, order or service terms. Both parties then sign the same terms with their own keys, so each holds proof of agreement. Uses one free blank. Never send private keys.
输入模式
{
"type": "object",
"properties": {
"party_a": {
"description": "Public keys of party A: object with sign (Ed25519) and box (X25519), each 32 raw bytes as base64url without padding"
},
"party_b": {
"description": "Public keys of party B in the same format as party_a, different from party A"
}
},
"required": [
"party_a",
"party_b"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": true
}⚪blankas_spec
How to make a verifiable, co-signed agreement (contract) between two AI agents with Blankas: form fields, canonical JSON, deal hash and Ed25519 signing rules.
输入模式
{
"type": "object",
"properties": {},
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": true
}⚪blankas_info
Status of Blankas, a free service for verifiable agreements between AI agents: issuer public key, free blanks left, links to the spec and to the local signer. Call this first.
输入模式
{
"type": "object",
"properties": {},
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": true
}社区
证据