"Free Network Graph Visualization Tools (No Account Required)" matching MCP tools:

• discovery_signup

  Disco

  Create a Disco account and get an API key. Provide an email address to start the signup flow. If email verification is required, returns {"status": "verification_required"} — the user will receive a 6-digit code by email, then call discovery_signup_verify to complete signup and receive the API key. The free tier (10 credits/month, unlimited public runs) is active immediately. No authentication required. Returns 409 if the email is already registered. Args: email: Email address for the new account. name: Display name (optional — defaults to email local part).

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• shippingrates_lines

  FreightGate MCP Server

  List all shipping lines in the ShippingRates database with per-country record counts. Use this to discover which carriers and countries have data before querying specific tools. Returns each carrier's name, slug, SCAC code, and a breakdown of available D&D tariff and local charge records per country. FREE — no payment required. Returns: Array of { line, slug, scac, countries: [{ code, name, dd_records, lc_records }] } Related tools: Use shippingrates_stats for aggregate totals, shippingrates_search for keyword-based discovery.

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• duvera__weather_air_quality

  gateway

  [duvera · risk:low] Current air quality (US AQI, PM2.5, PM10, ozone) for a latitude/longitude. Use geo.geocode first if you only have a place name. No account required.

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• get_sample_score

  x402 Counterparty Score

  Returns a clearly-marked stale sample counterparty score in the exact response schema of score_x402_counterparty (verdict, wash_trading_ratio, real_buyer_count, repeat_buyer_rate, source, updated_at, confidence). Free, no payment required, no input required. Sample data is fixed and expired by design — use it to validate response parsing, then call score_x402_counterparty ($0.02/call) for fresh decision-grade scores.

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• shippingrates_stats

  ShippingRates MCP Server

  Get current statistics for the ShippingRates shipping intelligence database. Use this as a starting point to understand what data is available before calling other tools. Returns record counts for D&D tariffs, local charges, transit schedules, freight rates, surcharges, ports, shipping lines, countries, and the last data refresh timestamp. FREE — no payment required. Returns: { tariff_records, ports, transit_schedules, freight_rates, local_charges, shipping_lines, countries, last_scrape (ISO datetime) } Related tools: Use shippingrates_lines for per-carrier breakdowns, shippingrates_search for keyword discovery.

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• flipr_game_info

  flipr-x402

  Retrieve static game rules, denomination model, pot mechanics, and strategy explanations. Free -- no payment required. Returns: flip cost, randomness source (Chainlink VRF), pot payout rules (2-hour and jackpot), denomination model (pots in ETH, payments in USDC), strategies (match vs beat). Call this first to understand the game before using other tools. [pricing: {"cost":"0","currency":"USDC","type":"free"}]

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• map_to_taxonomy

  aibvf-mcp

  Map everyday business language to the canonical AI BVF values required by the scoring tools. CALL THIS when the user says customer service, procurement, banking, GenAI copilot or bureaucratic and the matching enum is not certain. Pass only the fields written in free text; each returns the canonical value, what it matched on, or null with suggestions. A null result requires the user to choose from the suggestions, because a plausible guess would change the score. Use list_taxonomy when the user needs every permitted value, then pass the mapped values into score_initiative, diagnose_process, get_benchmark or the portfolio tools. Pure deterministic lookup, no network, auth, or side effects.

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• create_payment_link

  Kuwait Payments (Tap Payments — KNET)

  Create a payment link in KWD for Kuwait via Tap Payments. Buyer pays with KNET (the Kuwaiti debit network), cards, Apple Pay — whatever is enabled on the Tap account. Returns a hosted checkout URL the buyer opens to pay — payment completes automatically, no confirm step. Bring your own credentials via HTTP header (x-tap-secret-key; free test credentials from businesses.tap.company never move real money). Money always flows buyer→Tap Payments→merchant; this service never touches funds.

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• get_graph_template_schemas

  RationalBloks

  Get pre-built graph template schemas for common use cases. ⭐ USE THIS FIRST when creating a new graph project! Templates show the CORRECT graph schema format with: proper node definitions (description, flat_labels, schema with flat field definitions), relationship configurations (from, to, cardinality, data_schema), and hierarchical entity nesting. Available templates: Social Network (users, posts, follows), Knowledge Graph (topics, articles, authors), Product Catalog (products, categories, suppliers). You can use these templates directly with create_graph_project or modify them for your needs. TIP: Study these templates to understand the correct graph schema format before creating custom schemas.

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• shippingrates_lines

  freightgate-mcp-server

  List all shipping lines in the ShippingRates database with per-country record counts. Use this to discover which carriers and countries have data before querying specific tools. Returns each carrier's name, slug, SCAC code, and a breakdown of available D&D tariff and local charge records per country. FREE — no payment required. Returns: Array of { line, slug, scac, countries: [{ code, name, dd_records, lc_records }] } Related tools: Use shippingrates_stats for aggregate totals, shippingrates_search for keyword-based discovery.

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• shippingrates_lines

  ShippingRates MCP Server

  List all shipping lines in the ShippingRates database with per-country record counts. Use this to discover which carriers and countries have data before querying specific tools. Returns each carrier's name, slug, SCAC code, and a breakdown of available D&D tariff and local charge records per country. FREE — no payment required. Returns: Array of { line, slug, scac, countries: [{ code, name, dd_records, lc_records }] } Related tools: Use shippingrates_stats for aggregate totals, shippingrates_search for keyword-based discovery.

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• shippingrates_stats

  FreightGate MCP Server

  Get current statistics for the ShippingRates shipping intelligence database. Use this as a starting point to understand what data is available before calling other tools. Returns record counts for D&D tariffs, local charges, transit schedules, freight rates, surcharges, ports, shipping lines, countries, and the last data refresh timestamp. FREE — no payment required. Returns: { tariff_records, ports, transit_schedules, freight_rates, local_charges, shipping_lines, countries, last_scrape (ISO datetime) } Related tools: Use shippingrates_lines for per-carrier breakdowns, shippingrates_search for keyword discovery.

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• list_capabilities

  Axcess — Design Accessibility Evaluation

  Returns available evaluation tools, what they check, and their pricing. Call this first to understand what Axcess can evaluate and how much each evaluation costs. This tool is FREE. All evaluation tools require USDC payment on Base network. Returns: JSON with tool descriptions, pricing, and rubric categories.

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• deltasignal_spectra_field_map

  DeltaSignal ATLAS-7

  Use this read-only tool to retrieve the SPECTRA historical field-map contract for one crypto public company ticker. It returns issuer-specific filing choreography and pressure-map context used by DeltaSignal report and visualization workflows. Parameters: ticker is required and must be one public-company symbol such as RIOT, MARA, COIN, MSTR, HUT, or CLSK. Behavior: read-only and idempotent; it performs one HTTPS read, has no destructive side effects, and does not write files, wallets, orders, or account state. Use it when the user asks for SPECTRA, field-map, historical pressure, filing choreography, or report-visualization context for a named issuer.

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• get_treasury_yield_current

  LastLook Data

  Returns the most recent 30-year US Treasury constant maturity yield (DGS30) from FRED. Free — no payment required. For other series use get_current_value or get_series.

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• list_currencies

  Payram

  Lists every blockchain currency PayRam supports on this node (chain code, network, currency code). Public endpoint — works with only PAYRAM_BASE_URL set, no API key or JWT required. Use this to discover valid blockchainCode/currencyCode values before creating payments or payouts.

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• market_pulse

  AgentsPrice

  The AgentsPrice hive-mind pulse — a FREE, no-key, real-time aggregate of what agents are doing across the network right now: trending searches, the steepest live discounts found, open buy-side wants, and active marketplace listings. Real data only, never fabricated; richer the more agents use it. Use it to see demand, spot deals, or find what to list. No API key required.

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• bitcoin_network

  dynamic-feed

  Live Bitcoin NETWORK telemetry — infrastructure metrics only, NO price data. `metric` = "overview" (default, full digest) | "fees" (recommended fee tiers sat/vB) | "mempool" (unconfirmed tx count + vsize + pending fees) | "difficulty" (current + next adjustment % + blocks until retarget) | "hashrate" (3-day average EH/s) | "halving" (blocks remaining + estimated date + current/post-halving block subsidy). Overview returns all sections in one call. Source: mempool.space public REST API (open-source, AGPL-3.0) with Blockstream Esplora (MIT) as block-height fallback. Keyless, 60 s cache. HARD CONSTRAINT: no BTC/USD or any fiat price — Bitcoin NETWORK mechanics only. Not financial advice. Every value is returned in an Ed25519-signed, provenance-stamped envelope (source and observation time) you can verify offline against /.well-known/keys, no account required.

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• alter_resolve_handle

  ~Alter Identity

  Resolve a ~handle (~alter's identity address, like '~example') to its canonical form and kind. Use this as your first call when you have a handle and need to confirm it exists before calling other tools. Returns canonical handle, kind (system/personal/role_alias), and addressability. Never returns PII; use verify_identity for that. Free L0, no authentication required.

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• duvera__wiki_summary

  gateway

  [duvera · risk:low] Get the lead summary of a Wikipedia article by title (e.g. "Zero_trust_architecture"). Use wiki.search first to find the exact page key. No account required.

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