Mnemos — memory as a service

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Bi-temporal memory-as-a-service and paid agent labor. Pay-per-call USDC via x402; signed receipts.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Mnemos — memory as a service": {
      "url": "https://memory.virohanalife.com/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (15)

• agora_catalog

  FREE. Discover the full Agora x402 service catalog: every buyable tool, its price in USDC on Base, and the x402 settlement parameters (network, asset, payTo). Call this first to see what you can buy and how to pay.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• summarize_demo

  FREE. A working demo of the paid `summarize` tool: returns a tiny deterministic extractive summary (first + most-salient sentences, capped ~280 chars) so agents can verify the connector end-to-end before buying. No payment, no auth required.

  Parameters:

  • text (required) — string — The text to summarize (any length; only a short preview is returned).

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• summarize

  PAID (0.03 USDC). Full-quality document summarization. Returns an x402 quote + payment instructions; the summary is delivered after payment settles.

  Parameters:

  • text (required) — string — The document to summarize.
  • max_words — integer — Target maximum length of the summary in words.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• fact_verify

  PAID (0.25 USDC). Verify a factual claim and return a supported/refuted verdict with reasoning and citations. Returns an x402 quote + payment instructions.

  Parameters:

  • claim (required) — string — The claim to verify.
  • sources — Optional list of source URLs/texts to check against.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• code_review

  PAID (0.05 USDC). Review a code snippet for correctness, security, and clarity; returns a severity-ranked findings report after payment. Returns an x402 quote.

  Parameters:

  • code (required) — string — The source code to review.
  • language — string — Programming language (or 'auto' to detect).

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• research_brief

  PAID (0.10 USDC). Structured synthesis brief on a topic, from local model knowledge only. This tool does NO live web research and returns NO citations -- claims are not sourced. The delivered brief carries in-band caveats stating its knowledge cutoff and limits. If you need cited, web-researched output, that is a different product (research-brief-pro on the HTTP rail), not this one. Returns an x402 quote + payment instructions; the brief is delivered after settlement.

  Parameters:

  • topic (required) — string — The research topic or question.
  • depth — string — 'quick' | 'standard' | 'deep'.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• notarize

  PAID (0.10 USDC). Produce a tamper-evident notarization record (sha256 digest + signed timestamp) for a piece of content. The quote preview already includes the sha256 digest so you can verify integrity; the signed record follows payment.

  Parameters:

  • content (required) — string — The content to notarize.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• trust_check

  PAID (0.05 USDC). Combined Trust Oracle probe: aggregate bazaar-index stats (reachable/valid-402 counts, median latency) + a watchtower attestation for one URL (reachable, returns_402, latency, score). Returns an x402 quote + payment instructions; the combined result is delivered after payment settles.

  Parameters:

  • url (required) — string — The https URL to probe (watchtower).

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• embed_batch

  PAID (0.005 USDC). Text embeddings via local Jetson Ollama (nomic-embed-text, 6000-char truncation, up to 32 texts per batch). Returns an x402 quote + payment instructions; {model, dims, vectors} is delivered after payment settles.

  Parameters:

  • texts (required) — array — List of strings to embed (max 32).

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• mnemos_saas_info

  FREE. Learn how Mnemos-as-a-Service works before buying: the BI-TEMPORAL contract (two independent time axes per memory), the tenant-isolation model, limits, pricing, and a worked example showing four different correct answers for one key. No payment, no tenant data. Call this first.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• mnemos_provision

  PAID (0.50 USDC, monthly floor). Mint your own fully isolated bi-temporal memory namespace. Payment IS the identity -- no signup, no email: settling the x402 quote issues a tenant key, shown exactly once. Returns an x402 quote.

  Parameters:

  • label — string — A human label for your tenant (e.g. your agent's name).

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• mnemos_store

  PAID (0.01 USDC). Store a memory in your isolated bi-temporal namespace. Append-only: `supersedes` marks a prior belief as no longer held WITHOUT destroying it, so it stays queryable via mnemos_as_of. `valid_from`/`valid_to` describe when the fact is true IN THE WORLD and may be backdated; the system's own knowledge timestamps are server-stamped and cannot be forged. Returns an x402 quote; requires header X-TENANT-KEY once settled.

  Parameters:

  • key (required) — string — Stable identifier for this fact (e.g. 'ACME.runway').
  • value (required) — string — The memory content (max 6000 chars).
  • valid_to — ISO8601 -- when it stopped being true (omit if still true).
  • supersedes — memory_id of the prior belief this replaces.
  • valid_from — ISO8601 -- when the fact became true in the world.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• mnemos_search

  PAID (0.005 USDC). Semantic search over your CURRENT beliefs, ranked by cosine similarity (nomic-embed-text, computed locally). Raw embedding vectors are never returned. Returns an x402 quote; send X-TENANT-KEY once settled.

  Parameters:

  • query (required) — string — Natural-language search query.
  • k — integer — Number of results (max 25).
  • kind — Optional filter on the memory `kind`.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• mnemos_get_context

  PAID (0.005 USDC). The endpoint to call right before a completion: searches your memories, dedupes to the most-recent belief per key, budget-packs them into `max_chars`, and returns a ready-to-paste context block plus structured provenance. Content flagged as prompt-injection is excluded from the block. Optionally assembled AS OF a past time. Returns an x402 quote.

  Parameters:

  • query (required) — string — What the upcoming completion is about.
  • k — integer — Max memories to consider (max 25).
  • as_of — ISO8601 -- assemble context as it stood at this time.
  • max_chars — integer — Character budget for the assembled block.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• mnemos_as_of

  PAID (0.005 USDC). THE BI-TEMPORAL READ -- the thing no other memory service on this mesh sells. Answers: "what did the store BELIEVE at `tx_time` about what was TRUE at `valid_time`?" Use it to replay an agent's decision with only the knowledge it had at the time (no hindsight leakage), to audit corrections, and to distinguish "we were wrong" from "the world changed". Returns an x402 quote.

  Parameters:

  • k — integer — Number of results (max 25).
  • key — Exact key to look up (or use `query`).
  • query — Semantic query (or use `key`).
  • tx_time — ISO8601 -- point on the SYSTEM-BELIEF axis. Defaults to now.
  • valid_time — ISO8601 -- point on the WORLD-TRUTH axis. Defaults to now.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

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