All servers · Agent payments (x402) · Utilities · Payments & accounting

satledger timestamp receipt

org.satledger/timestamp-receipt · v0.21.0

Measured by MCP Station

Description written by the publisher, not verified

RFC 3161 timestamps with no account, and a signed agent-ledger workspace. Paid per call over x402.

Connect

claude mcp add --transport http timestamp-receipt https://api.satledger.org/mcp

{
  "mcpServers": {
    "timestamp-receipt": {
      "url": "https://api.satledger.org/mcp"
    }
  }
}

Tools as reported by the server

• timestamp_receipt
  Submit a SHA-256 digest and receive a Time-Stamp Authority's signed RFC 3161 token over it: evidence that the data you hashed existed at that time, verifiable against the authority without trusting or contacting this service. Hash your data yourself - it never leaves your side. Your first 3 each day
• provision_workspace
  Buy a workspace: a tamper-evident usage and action ledger for your agents, every event ed25519-signed and hash-chained, with an export your own customers verify offline. Pay over x402 in _meta[x402/payment]: 0.50 USDC for 2,500 units (starter), 15.00 USDC for 100,000 units (block). Every workspace a
• top_up_workspace
  Add units to a workspace you already hold. Send its API key in _meta[satledger/api-key] (or the api_key argument) and the payment in _meta[x402/payment]: 0.50 USDC for 2,500 units (starter), 15.00 USDC for 100,000 units (block). The units land in that workspace and nothing new is created; buying a w
• create_agent
  Create an agent in your workspace: a named ledger whose every event is ed25519-signed and hash-chained. `initial_credits` mints supply to the workspace issuer, not to the agent - fund_agent moves credits across when you need usage metering. Costs 1 unit. Authenticate with the workspace key in _meta[
• record_action
  Append what an agent did - a tool call, a decision, a message - as a signed, hash-chained entry. This is the thing the workspace is for. Costs 1 unit. Authenticate with the workspace key in _meta[satledger/api-key].
• fund_agent
  Move credits from the workspace issuer to an agent's own account, so record_usage can burn them. Costs 1 unit. Authenticate with the workspace key in _meta[satledger/api-key].
• record_usage
  Burn credits from an agent's account, as a signed ledger event. Costs 1 unit. Authenticate with the workspace key in _meta[satledger/api-key].
• anchor_agent
  Ask a public RFC 3161 Time-Stamp Authority to sign the agent's current state. The one fact here the operator cannot manufacture: a timestamp cannot be issued for a time that has passed. An unchanged state returns the anchor it already has. Costs 100 units. Authenticate with the workspace key in _met
• export_agent
  Build the export bundle, run the customer-side verifier over it and return the summary plus the URL of the archive (HTTP, X-API-Key, free). Pass expect_action_head / expect_action_count from state YOU kept to check completeness. Free, permanently. Authenticate with the workspace key in _meta[satledg
• list_agents
  Every agent in your workspace. Free. Authenticate with the workspace key in _meta[satledger/api-key].
• describe_agent
  Current state: root id, state hash, event count, balance. Free. Authenticate with the workspace key in _meta[satledger/api-key].
• list_actions
  The agent's action log, with its head hash. Free. Authenticate with the workspace key in _meta[satledger/api-key].
• list_anchors
  Every anchor commitment recorded for the agent. Free. Authenticate with the workspace key in _meta[satledger/api-key].
• workspace_balance
  Units remaining and what each operation costs. Free, so you can plan before you are refused. Authenticate with the workspace key in _meta[satledger/api-key].

Tool changes

• 2026-10-21: timestamp_receipt, provision_workspace, top_up_workspace, create_agent, record_action, fund_agent, record_usage, anchor_agent, export_agent, list_agents, describe_agent, list_actions
• 2026-10-20: timestamp_receipt
• 2026-10-19: timestamp_receipt
• 2026-10-16: timestamp_receipt

Website · JSON · Text for agents · Registry updated 2026-10-20