RFC 3161 timestamps with no account, and a signed agent-ledger workspace. Paid per call over x402.
Connect Remote server
claude mcp add --transport http timestamp-receipt https://api.satledger.org/mcp
{
"mcpServers": {
"timestamp-receipt": {
"url": "https://api.satledger.org/mcp"
}
}
}
{
"servers": {
"timestamp-receipt": {
"type": "http",
"url": "https://api.satledger.org/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://api.satledger.org/mcp
Tools 14 found in our last check
timestamp_receiptSubmit 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.…
provision_workspaceBuy 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 (bloc…
top_up_workspaceAdd 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 i…
create_agentCreate 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 wo…
record_actionAppend 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_agentMove 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_usageBurn 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_agentAsk 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…
export_agentBuild 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…
list_agentsEvery agent in your workspace. Free. Authenticate with the workspace key in _meta[satledger/api-key].
describe_agentCurrent state: root id, state hash, event count, balance. Free. Authenticate with the workspace key in _meta[satledger/api-key].
list_actionsThe agent's action log, with its head hash. Free. Authenticate with the workspace key in _meta[satledger/api-key].
list_anchorsEvery anchor commitment recorded for the agent. Free. Authenticate with the workspace key in _meta[satledger/api-key].
workspace_balanceUnits 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].
Details
| Endpoint | https://api.satledger.org/mcp (Streamable HTTP) |
| First published | 27 Oct 2026 |
| Last updated | 27 Oct 2026 |
| Registry name | org.satledger/timestamp-receipt |
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