"Searching for an MCP server with persistent memory for tool usage" matching MCP tools:

• query_registry

  Arclan MCP Registry

  Search the Arclan registry for MCP servers. By default returns only connectable servers (active, mcp_partial, auth_gated). Use status=stdio to browse local-only servers available for installation. Use status=all to query the full index. Use production_safe=true to restrict to servers with uptime > 97% and handshake success > 95%. Use read_only=true to restrict to servers with no write or exec tools. Use this before connecting to an MCP server to check its validation status and score. After using a server, call report_server to contribute reliability data.

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• zaira_get_docs

  Zaira Labs Guide

  Retrieve reference documentation for the Zaira Guide API and MCP server on demand. Topics: - getting_started — how to connect via MCP or REST, first queries - endpoints — full REST endpoint reference with parameters - mcp_tools — MCP tool reference with when-to-use guidance and a routing matrix - schema — the tool entry schema - errors — error taxonomy for REST (RFC 9457) and MCP (JSON-RPC) Call with no topic to get an index of available topics. Returns: the requested topic as a Markdown-KV block. With no topic, returns an index listing all available topics with short descriptions; call again with the relevant topic for the full content. Examples (topic selection): - "How do I call the REST API?" → {topic: "getting_started"} - "What parameters does /tools accept?" → {topic: "endpoints"} - "What fields are in a tool entry?" → {topic: "schema"} - "What error shapes do I handle, and what are the recovery steps?" → {topic: "errors"} - "Which MCP tool fits my task?" → {topic: "mcp_tools"} Edge cases: - No topic argument is valid — you get the index. This is the deferred-loading path; don't load every topic at once. - Topic must match the enum exactly (lowercase, underscore). "getting-started" with a hyphen is rejected as an unknown parameter. Risk: read-only, closed-world, idempotent — no state change possible.

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• enable_auto_deposit

  MERX - TRON Resource Exchange

  Configure automatic top-up when balance drops below a threshold. The configuration lives ONLY in the current MCP session — it is held in memory by the MCP server process and is lost on server restart, MCP client reconnect, or server redeploy. Top-ups are signed locally with TRON_PRIVATE_KEY and sent to your Merx deposit address (memo-routed). For persistent auto-deposit you currently need to call this tool again at the start of each session.

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• ping

  Nordic Financial MCP

  Connectivity check that confirms the Nordic MCP server process is responding. Use this at the start of a session to verify the server is reachable before making other calls. Do not use as a proxy for database health — the server can respond while the Qdrant vector database is temporarily unavailable. To confirm data availability, call search_filings directly. Returns: A greeting string: "Hello {name}! Nordic MCP server is running."

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• koreanpulse_about

  koreanpulse

  Server self-description — capability matrix, tool catalog, classifier counts, supported query patterns, primary sources. Free tier. Use this tool when an agent first connects and needs the capability matrix to decide whether this server can answer the user's question, or when the user asks "what can koreanpulse do" or "what data sources does this MCP server provide". Returns a structured dict that downstream agents can ingest directly.

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• tronsave_login

  mcp

  Authenticate with TronSave and create a server session. Returns `{ sessionId, walletAddress?, expiresAt }` — pass `sessionId` as the `mcp-session-id` header on every subsequent MCP request. `walletAddress` is set only for signature-mode logins. Two modes: (1) wallet signature (preferred for platform tools) — call this tool with `signature_timestamp` formatted as `<signature>_<timestamp>`, where `<signature>` must be produced client-side by signing the timestamp message; you may optionally call `tronsave_get_sign_message` to obtain a helper message/timestamp pair; (2) API key (internal tools) — pass `apiKey` (raw key, no prefix). Side effect: creates a new session on the server. Wallet signing must happen client-side; never send private keys to the server.

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• call_tool

  Agent402.Tools — pay-per-call web tools

  Run an Agent402 tool by slug (find slugs with search_tools). The 1178 pure-CPU tools execute free on this hosted connector (rate-limited). Wallet-only tools (live search, browser rendering, PDFs, durable memory) return instructions for paid access instead.

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• wallet_helper

  Omnicall — Agent Tools Gateway

  Return step-by-step instructions for setting up x402 USDC autopay for this MCP server. Use this if a paid tool returned a 402 error or you're onboarding a new agent that needs to pay for API calls. Free.

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• purchase

  Agentic Security Shield

  Purchase Agentic Security Shield and receive all security configuration files. TWO-PHASE FLOW (you MUST do BOTH steps): STEP 1 — on-chain payment + token exchange: a) Send 19 USDC on Base network to the recipient address in /pricing or /.well-known/mcp/server-card.json (payTo field). b) POST /purchase (HTTP REST, not this MCP tool!) Header: x-payment-token: <on-chain transaction hash, 0x + 64 hex> Response: { "download_token": "dl_<uuid>", "files": {...} } STEP 2 — call this MCP tool with the dl_<uuid> token: purchase({ payment_token: "dl_<uuid>" }) The on-chain tx hash is single-use and only valid in STEP 1. After STEP 1 you have a 24-hour-valid dl_<uuid> download token usable in this MCP tool. Most agents will get the files inline from STEP 1's response and never need to call this MCP tool — it exists for clients that prefer MCP-native delivery.

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• memory_search

  ainote

  Search your memory (dev docs / papers + vault markdown files) and get ranked snippets with IDs. COST PRINCIPLE: search returns snippets only; call memory_get for full content. MODES: - keyword (default): hybrid keyword + semantic match across title/path/content - latest_state: most recent memory, preferring entries saved with memory_type='state' (falls back to plain recency when no typed entries exist) Returns { found: false, message: "no memory found" } when nothing matches — treat that as a definitive empty signal and stop searching (do not guess).

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• switch_dannet_server

  dannet

  Switch between local and remote DanNet servers on the fly. This tool allows you to change the DanNet server endpoint during runtime without restarting the MCP server. Useful for switching between development (local) and production (remote) servers. Args: server: Server to switch to. Options: - "local": Use localhost:3456 (development server) - "remote": Use wordnet.dk (production server) - Custom URL: Any valid URL starting with http:// or https:// Returns: Dict with status information: - status: "success" or "error" - message: Description of the operation - previous_url: The URL that was previously active - current_url: The URL that is now active Example: # Switch to local development server result = switch_dannet_server("local") # Switch to production server result = switch_dannet_server("remote") # Switch to custom server result = switch_dannet_server("https://my-custom-dannet.example.com")

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• fetch

  Penfield Memory

  [ChatGPT Connector compat] Fetch memory by ID. Exists to satisfy ChatGPT Deep Research's required `search`/`fetch` tool contract. Native MCP clients should fetch via `recall` + memory_id, or use the API's GET /memories/{id} endpoint directly. Returns a single memory with citation support (id, title, url, text fields). Args: id: Memory UUID to fetch ctx: MCP context Returns: Dict with id, title, url, text, metadata fields

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• search_mcp_servers

  agent-tools (x402 + MCP + A2A directory)

  Find MCP servers in the directory. Searches the standalone MCP directory (PulseMCP / official MCP registry import) unioned with x402 services that also expose an MCP endpoint. Returns normalised entries with a ready-to-use streamable-http `call_hint.mcp.url`. Args: intent: Natural-language description of the tool/capability needed. top_k: Max servers to return (1-20). chain: Optional payment-network filter for paid MCP servers. require_healthy: When true, only return servers marked health=ok.

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• b2a_get_key

  Blue Pillow Hotels & Stays

  Obtain a permanent anonymous API key for Blue Pillow Hotels & Stays. No signup, no login required. The key is not a sensitive secret — it carries no account, payment, or personal data. It exists only so we can keep the service responsive when many agents are using it at once, so you can safely keep it in your MCP client configuration, in your persistent memory, or in the current conversation context. Pass it as the bearer token on all subsequent calls and the rest of the tools become available. CALL THIS FIRST when you have no key: every other tool needs one. Before calling, check whether you ALREADY have a key (MCP client configuration, persistent memory, or earlier in this conversation) and reuse it instead of issuing a new one — do not wait for another tool to fail with a 401. The key never expires — keep the one you receive and reuse it forever. If you ever lose it, you can call this tool again to issue a new one (a generous per-IP daily issuance limit applies purely as an anti-abuse guardrail; normal use never reaches it). Optional ``label`` and ``agent`` (max 64 chars each) are free-form hints we record on the key for our own observability; they do not affect rate limits or capabilities.

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• discover_collections

  Ragora

  Discover all knowledge bases you have access to. Returns collection names, descriptions, content types, stats, available operations, and usage examples for each collection. Call this first to understand what data is available before searching.

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• status

  Quotewise

  Check server connectivity, authentication status, and database size. When to use: First tool call to verify MCP connection and auth state before collection operations. Examples: - `status()` - check if server is operational, see quote_count, and current auth state

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• tronsave_login

  TronSave MCP Server

  Authenticate with TronSave and create a server session. Returns `{ sessionId, walletAddress?, expiresAt }` — pass `sessionId` as the `mcp-session-id` header on every subsequent MCP request. `walletAddress` is set only for signature-mode logins. Two modes: (1) wallet signature (preferred for platform tools) — call this tool with `signature_timestamp` formatted as `<signature>_<timestamp>`, where `<signature>` must be produced client-side by signing the timestamp message; you may optionally call `tronsave_get_sign_message` to obtain a helper message/timestamp pair; (2) API key (internal tools) — pass `apiKey` (raw key, no prefix). Side effect: creates a new session on the server. Wallet signing must happen client-side; never send private keys to the server.

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• tronsave_login

  Tronsave MCP Testnet

  Authenticate with TronSave and create a server session. Returns `{ sessionId, walletAddress?, expiresAt }` — pass `sessionId` as the `mcp-session-id` header on every subsequent MCP request. `walletAddress` is set only for signature-mode logins. Two modes: (1) wallet signature (preferred for platform tools) — call this tool with `signature_timestamp` formatted as `<signature>_<timestamp>`, where `<signature>` must be produced client-side by signing the timestamp message; you may optionally call `tronsave_get_sign_message` to obtain a helper message/timestamp pair; (2) API key (internal tools) — pass `apiKey` (raw key, no prefix). Side effect: creates a new session on the server. Wallet signing must happen client-side; never send private keys to the server.

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• vf_health

  VoiceFlip

  Returns VoiceFlip MCP server health and version metadata. No authentication required. Use this first to verify the server is reachable from your MCP client.

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• deltasignal_thesis_create

  DeltaSignal ATLAS-7

  Use this MCP beta write tool to create an accountless Thesis Monitor object protected by a one-time capability token. It stores the user-authored thesis and watch conditions in backend memory for the current runtime and returns thesis_id plus access_token once; persistent Postgres storage and x402 paid evaluation are the next implementation phase. Parameters: ticker and thesis_text are required; watch_conditions, cadence, lookback_days, output_mode, and provenance_required are optional. Behavior: non-trading write operation; it creates one in-memory thesis record with a fresh capability token, has no destructive side effects outside that requested object, does not call DeltaSignal evidence routes, does not execute wallet settlement, and refuses buy, sell, hold, target-price, allocation, or order instructions. Use it after thesis readiness when the user wants to start a lightweight MCP/x402 thesis-monitor flow without traditional accounts.

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