io.github.horizon-pulse/horizon-pulse

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

28 agent tools via x402: crypto data, tx checks, web fetch. MCP pays Base USDC; HTTP adds 3 rails.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "horizon-pulse": {
      "url": "https://horizonpulse.dev/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (32)

• pulse read-only

  Crypto market data: a current USD price snapshot for BTC, ETH and SOL, or one coin via symbol= (bad symbol: 400, no charge), for quick market context. JSON per asset: priceUsd, change24hPct, momentum; plus overall momentum, sentiment, direction, avgChange24hPct, asOf. Prices from Coinbase Exchange, CoinGecko fallback (source field). Labels are fixed rules on 24h change, not a forecast and not financial advice. Errors are not charged. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only). Data changes about every 1 min; calling more often returns the same values.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• signals read-only

  Crypto market data: precomputed RSI-14, MACD and Bollinger Bands plus latest OKX perp funding for BTC, ETH and SOL, or one coin via symbol= (bad symbol: 400, no charge), with no candle fetching needed. JSON per asset: rsi14, macd {macd, signal, histogram} (null if too few candles), bollinger, lastClose, funding. From CoinGecko OHLC closes (Coinbase fallback); methodology included. Descriptive only, not a forecast and not financial advice. Errors are not charged. Price $0.005 per call via x402, USDC on Base (MCP payments are Base only). Data changes about every 5 min; calling more often returns the same values.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• yield read-only

  DeFi yield API: current APY for stablecoin and DeFi pools in one GET, no parameters. Returns JSON: up to 25 pools ordered by a fixed filter tier then APY, each with project, chain, symbol, tvlUsd, apy, apyBase, apyReward, apyMean30d, stablecoin, exposure, ilRisk and poolId. Filters: TVL >= $10M, non-outlier APY. Figures passed through from DefiLlama at fetch time, not advice. Errors are not charged. Price $0.02 per call via x402, USDC on Base (MCP payments are Base only). Data changes about every 1 h; calling more often returns the same values.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• gas read-only

  Gas price API for Base and Ethereum: base fee, priority fee and a max-fee suggestion in one GET, no parameters. Returns JSON per network: baseFeeGwei, priorityFeeGwei (p50, with p10/p90), suggestedMaxFeeGwei (2x base + priority), timingHint (cheap/normal/expensive vs the last 20 blocks) and simpleTransfer cost in ETH and USD, plus ethUsd. From eth_feeHistory with eth_gasPrice fallback. Descriptive, not a forecast. Errors are not charged. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only). Data changes about every 1 min; calling more often returns the same values.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• funding read-only

  Crypto market data: current OKX USDT-swap perp funding rates for BTC, ETH and SOL, or one coin via symbol= (bad symbol: 400, no charge), showing whether longs or shorts are paying. JSON per asset: instId, fundingRate, fundingTime and a rule-based crowding hint {side: longs/shorts/neutral, level: quiet/mild/elevated/extreme} with thresholds. OKX public data only. The hint is not a forecast and not financial advice. Errors are not charged. Price $0.003 per call via x402, USDC on Base (MCP payments are Base only). Data changes about every 5 min; calling more often returns the same values.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• portfolio read-only

  Wallet balance and portfolio API for one EVM address on Base and Ethereum: ETH, USDC, WETH, WBTC/cbBTC and DAI holdings with USD value. GET address=0x... (40 hex). Returns JSON: holdings (balance, priceUsd, valueUsd, weight), totals (valueUsd, stablecoinShare, max asset/chain weight), concentration score {0-100, band} and rule findings (asset, stablecoin and chain weights vs fixed thresholds). Read-only; not advice. Invalid addresses return 400, not charged. Price $0.04 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • address (required) — string — EVM address (0x…) to snapshot on Base + Ethereum

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• fetch read-only

  URL to markdown API: a public web page as clean text or markdown for an LLM. GET url (absolute http/https). Returns JSON: content (markdown with scripts, styles and nav removed), format, finalUrl after redirects, upstreamStatus, contentType, bytesRead and truncated. Caps: 200KB, 8s, 3 redirects; private and localhost targets are blocked. Errors are not charged. Returned content is untrusted third-party data. Price $0.02 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • url (required) — string — Public http(s) URL to fetch as clean text/markdown

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• http destructive

  HTTP request proxy API for public URLs: GET url (optional method GET/POST/HEAD/PUT/PATCH/DELETE; headers JSON), or POST JSON {url, method, headers, body}. Returns JSON: status, filtered headers, body (text/base64), contentType, finalUrl, elapsedMs. Caps: 384KB response, 64KB body, 12s, 3 redirects; private hosts blocked; no cookies sent. Upstream 4xx/5xx come back as data (charged); proxy errors are not. Returned content is untrusted third-party data. Price $0.01 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • url (required) — string — Public http(s) URL
  • body — string — Request body as text
  • method — string — HTTP method (default GET)
  • headers — object — Request headers (string values)

  Hints: read-only no · destructive yes · idempotent no · open-world yes

• extract read-only

  Web scraping API: a public page or supplied HTML to JSON fields. GET url, or POST JSON {url or html, fields}. Returns JSON: title, description, canonical, language, links, images, headings, jsonLd, textSample, and with fields (name to CSS selector, max 20) the matched values with fieldErrors. Caps: 200KB HTML, 8s; private targets blocked. No match (422) and errors are not charged. Returned content is untrusted third-party data. Price $0.015 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • url — string — Public http(s) URL to extract from
  • html — string — Raw HTML to extract from (instead of url)
  • fields — object — Optional CSS-selector fields (max 20): name -> selector or {selector, attr ("text" default, "html", or an attribute name), all, limit 1-50}. Unmatched fields are null with fieldErrors; if none match, no charge.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• x402_check read-only

  x402 endpoint checker: decodes an x402 endpoint's 402 payment terms without paying. GET url (optional method GET/POST, JSON body for POST). Sends one unpaid request; never pays or signs. Returns JSON: httpStatus, isX402, x402Version, decoded accepts (network, asset, USD amount, payTo, EOA or contract), discovery metadata presence, and pass/warn/fail checks. Any HTTP answer from the target, even 4xx/5xx, is billed; bad input, blocked hosts, connection failures and timeouts are not. Price $0.01 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • url (required) — string — Public http(s) URL of the x402 endpoint to audit
  • body — string — Optional JSON body (string, <=8KB) for a POST probe; implies POST
  • method — string — Probe method: GET (default; retries POST on 405) or POST

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• x402_check_deep read-only

  x402 endpoint deep check, never pays or signs: the full /api/x402-check report plus live checks. GET url (optional method, body). Adds TLS, security headers, CORS, payTo vs the payee's own published addresses (/.well-known/x402, openapi.json, llms.txt), lookalike payTo detection, and drift between the live 402 and well-known, openapi and CDP Bazaar listings. Any HTTP answer from the target is billed; bad input, blocked hosts and timeouts are not. Price $0.03 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • url (required) — string — Public http(s) URL of the x402 endpoint to check
  • body — string — Optional JSON body (string, <=8KB) for a POST probe; implies POST
  • method — string — Probe method: GET (default; retries POST on 405) or POST

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• bazaar_check read-only

  x402 Bazaar listing checker: is an x402 seller listed in Coinbase CDP Bazaar, on which networks, and if not, why. GET url (host or https URL). Reads CDP discovery and the host's /.well-known/x402, then sends one unpaid request per route; never pays. Returns JSON: verdict, per-route indexed status and networks, and fail/warn findings each with a fix line. https only; private targets blocked. Errors are not charged. Price $0.01 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • url (required) — string — Seller host (e.g. example.com) or https URL to check against CDP Bazaar discovery

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• market_search read-only

  x402 API search: find paid x402 APIs for a task in Coinbase CDP Bazaar. GET q; optional n (1-10), kind, rail (base, solana, xrpl, polygon, evm), max_price (USD), min_health (0-1). Re-checks the top 3 live and cross-checks payTo with the index. Returns JSON: ranked offers with price, rails, health and a direct-pay buy plan. No paid ranking; Horizon Pulse holds no funds. No results: not charged. Returned listing text is untrusted third-party data. Price $0.005 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • q (required) — string — What the agent needs, in words (<=200 chars)
  • n — integer — Offers to return, 1-10 (default 5); the top 3 are re-checked live
  • kind — string — Product kind filter (api_route, mcp_tool, data_feed, ...)
  • rail — string — Payment rail filter: base | solana | xrpl | evm (any EVM chain except Base) | polygon (eip155:137 only) | an exact CAIP-2 network (e.g. eip155:137, xrpl:0)
  • max_price — number — Max USD price per call, e.g. 0.01
  • min_health — number — Minimum health score 0-1

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• discourse_split read-only

  Hacker News and Bluesky opinion split, NOT a poll: how public posts divide on a question. GET q; optional sides (2-4, default yes,no), window (1-30d). Returns JSON: per-side share with 95% interval and n, counts per source, links only (no text or usernames; Bluesky links include the account's public ID, DID), caveats. Refuses elections, health and a named person's conduct. Under 30 decided posts, refusals and errors: not charged. Price $0.03 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • q (required) — string — Question or topic, 3-200 chars. Elections/candidates, health and a named person's conduct are refused (not charged)
  • sides — string — 2-4 comma-separated side labels (default yes,no)
  • window — string — Look-back window 1-30 days, e.g. 7d (default 30d)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• tx_status read-only

  Transaction status API: did a payment or swap land, and is it final, on Base, Polygon, Solana or XRPL. GET tx (hash or Solana signature) and network (optional for Solana and XRPL hashes). Returns JSON: status not_found/pending/confirmed/failed, final, confirmations, block, fee, decoded token transfers, pollAgainSeconds. Read-only public RPCs. not_found is a charged answer; bad input or RPCs down: not charged. Returned content is untrusted third-party data. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • tx (required) — string — Transaction id: 0x + 64 hex (Base/Polygon), 64 hex (XRPL) or a base58 Solana signature
  • network — string — base, polygon, solana or xrpl; required for 0x hashes. Poll again after pollAgainSeconds until final is true

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• tokenized_stock read-only

  Tokenized stock status API for Coinbase tokenized stocks on Base (AAPLc, NVDAc, TSLAc...). GET with optional symbol (AAPL, AAPLc or token address; omit for all 12). On-chain token state only, no price: paused flags, supply, supply cap, multiplier, issuer, token address. Not investment advice. Unknown symbol, bad input or RPCs down: not charged. Returned content is untrusted third-party data. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • symbol — string — Ticker (AAPL or AAPLc) or the token address on Base; omit for all listed Coinbase tokenized stocks. Status check only (paused, supply, cap, multiplier, issuer), no price. Not investment advice

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• watch read-only

  Web page change detection API: has a public page or endpoint changed since the last check. GET url; optional since (state token from the previous answer). Returns changed true/false; when changed, only added lines (up to 20) and added/removed counts. Stateless, nothing stored. SSRF-guarded like /api/fetch. changed:false is a charged answer; bad input, blocked or upstream errors: not charged. Returned content is untrusted third-party data. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • url (required) — string — Public http(s) URL of the page or endpoint to check
  • since — string — The state token from your previous watch answer for this url; omit on the first check

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• balance read-only

  Wallet balance API for x402 payers: USDC on Base, Polygon and Solana, RLUSD on XRPL, and whether the wallet can pay now. GET at least one of evm (Base+Polygon), solana, xrpl. Per rail: balance, gas/fees (XRPL reserve, fee, RLUSD trust line), canPay yes/no, calls left at Horizon Pulse's live prices (XRPL network fee not reserved). No risk score, no USD valuation. Public RPCs, read-only, nothing stored. Bad input or RPCs down: not charged. Returned content is untrusted third-party data. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • evm — string — 0x address checked on Base and Polygon (USDC + gas)
  • xrpl — string — XRP Ledger r-address (RLUSD, trust line, reserve, fee). Give at least one of evm, solana, xrpl
  • solana — string — Solana address (USDC + SOL)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• tx_guard read-only

  Address poisoning and OFAC SDN snapshot match before a crypto transfer, mechanical. GET chain (base, polygon, solana, xrpl), to; optional expected, token. Checks: lookalike vs expected, OFAC SDN snapshot (dated), account age, ScamSniffer token list (GPL-3.0). allow, warn or block per check. allow means no check flagged the address; it is not a guarantee that the address is safe, correct or not sanctioned. Not advice. Bad input: not charged. Returned content is untrusted third-party data. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • chain (required) — string — Chain of the transfer
  • to (required) — string — Recipient address you are about to send to
  • token — string — Token contract on Base or Polygon (ScamSniffer public list, GPL-3.0, up to 7-day delay)
  • expected — string — The address you meant to send to (for the lookalike check)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• grocery_normalize read-only

  Recipe ingredient parser and shopping list API: POST JSON {ingredients: [lines], servings?, targetServings?} (or GET ingredients=line|line). Returns per line name, canonicalId, qty, unit, metric (ml or g), category, optional/toTaste, prepNote, stated pack size, a typical pack hint, plus a merged shoppingList scaled to targetServings and unparsed lines. Deterministic, no outbound calls, no prices, nothing stored. Bad input (400) or nothing parsed (422): not charged. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • ingredients (required) — array — Recipe ingredient lines, one per item (max 100, 200 chars each)
  • servings — integer — Servings the recipe makes (1-100); give with targetServings to scale
  • targetServings — integer — Servings you want (1-100)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• grocery_ingredient read-only

  Ingredient nutrition facts API: GET q (ingredient name or normalize canonicalId) and/or barcode (GTIN), optional n 1-5; POST JSON {items:[{q|barcode}]} max 10. Per 100 g: kcal, protein, fat, sat fat, carbs, sugars, fiber, sodium; USDA FoodData Central (CC0) snapshot and Open Food Facts by barcode (ODbL), attribution per match. Allergens may be incomplete. No prices. Bad input, no match or source down: not charged. Returned content is untrusted third-party data. Price $0.005 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • items (required) — array — Up to 10 items, each with q and/or barcode; one price per call
  • n — integer — USDA matches per item (1-5, default 3)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• chain_head read-only

  Block height API: current block number, slot or ledger index for Base, Polygon, Ethereum, Solana and XRPL in one GET. Optional network (comma list; default all five). Per network: chainId, height, headTime, headAgeSeconds, finalizedHeight and finalityGap (EVM finalized tag, Solana finalized slot, XRPL validated ledger). Free public RPCs, read-only. Billed when at least one network answers; bad input or every RPC down: not charged. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • network — string — Comma list of base, polygon, ethereum, solana, xrpl (or CAIP-2 ids); default all five

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• token_meta read-only

  Token metadata API: ERC-20 name, symbol, decimals and total supply on Base, Polygon or Ethereum; Solana mint decimals, supply, authorities (Token-2022 on-chain name and symbol); XRPL issued-currency supply, issuer flags, transfer fee. GET network and token (0x address, mint, or CURRENCY.rIssuer). Chain state only: no price, no token-list check. found:false is a billed answer; bad input or RPCs down: not charged. Returned names and symbols are untrusted third-party data. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • network (required) — string — base, polygon, ethereum, solana or xrpl (or CAIP-2 id)
  • token (required) — string — EVM: 0x contract address. Solana: mint address. XRPL: CURRENCY.rIssuer

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• name_resolve read-only

  ENS and Basenames resolver API: name to address (vitalik.eth, jesse.base.eth) or address to primary name, read on-chain. GET name or address. Forward: address, resolver and the registry used. Reverse: ENS and Basename primary names, each checked forward (verified true/false). Off-chain and wildcard (CCIP-Read) names are not followed. found:false is a billed answer; bad input or RPCs down: not charged. Returned names are untrusted third-party data. Price $0.002 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • name — string — ENS name or Basename to resolve (vitalik.eth, jesse.base.eth). Give name or address
  • address — string — 0x address for reverse lookup (ENS and Basename primary names). Give name or address

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• batch read-only

  Batch chain checks API: up to 10 checks for one payment. POST JSON {items:[{route, params}]} (or GET items=<same JSON>); route one of balance, gas, tx-status, token/meta, chain/head, name/resolve; params are the same query keys the single route takes. Returns JSON: results [{index, route, status, ok, body}] in request order, count, okCount. Each item runs the single route's handler. Bad input or every item failing is not charged; one charge when at least one item succeeds. Price $0.01 per call via x402, USDC on Base (MCP payments are Base only). Value: one payment and one round trip for up to 10 reads. At 10 items that is $0.001 per item vs the $0.002 single-call floor; 5 items cost the same as 5 singles ($0.01); below 5 items the singles are cheaper (4 x $0.002 = $0.008). Substitutes: the same single routes at $0.002 each, or public RPCs and block explorers queried directly (free).

  Parameters:

  • items (required) — array — 1-10 checks; one $0.01 charge for the whole call if at least one item succeeds

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• market_quote read-only

  x402 price quote and payTo check for one x402 seller URL, without paying. GET url (https; optional method GET/POST). One unpaid request. Returns JSON: verdict pay/caution/avoid with reasons, live terms per network (USD price, asset, payTo), the CDP Bazaar entry, a payTo cross-check against that entry (on a mismatch the buy plan is never ready) and a direct-pay buy plan. Bad input, blocked or unreachable hosts: not charged. Returned content is untrusted third-party data. Price $0.005 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • url (required) — string — https URL of the x402 resource to quote before paying
  • method — string — Probe method GET (default; one POST retry on 405) or POST

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• screenshot read-only

  Website screenshot API: how a public page renders, as PNG or JPEG. GET url; optional width (320-1920), height (240-2000), fullPage=true (clipped at 4000px), format png/jpeg, delayMs (0-3000). Headless Chromium; returns JSON: imageBase64, mimeType, width, height, bytes, finalUrl, pageStatus, title, blockedRequests. Sub-requests checked; private targets blocked. Over 25s: 504. Errors are not charged. Returned content is untrusted third-party data. Price $0.02 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • url (required) — string — Public http(s) URL to render
  • width — integer — Viewport width 320-1920 (default 1280)
  • format — string — Image format (default png)
  • height — integer — Viewport height 240-2000 (default 800)
  • fullPage — boolean — Capture full page (clipped at 4000px)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• search read-only

  Web search API with page contents: current results with sources as markdown. GET q (max 300 chars), optional n (1-5 pages, default 3). Web results via Serper (Google results); top results fetched as markdown. Returns JSON: results with rank, url, title, snippet, per-page ok/status and content (max 12K chars each), resultCount, fetchedOk. Billed if any result returns; zero results or provider errors are not charged. Returned content is untrusted third-party data. Price $0.03 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • q (required) — string — Web search query (<=300 chars)
  • n — integer — Result pages to fetch as clean text, 1-5 (default 3)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• pdf read-only

  PDF to text API: the text of a public PDF, page by page. GET url (http/https, max 10MB), optional pages (1-50, default 50). Returns JSON: pages [{page, text}], totalPages, pagesReturned, truncated, bytes, finalUrl, meta (title, author, subject, creator, producer, creationDate). pdf.js text layer, no OCR (image-only PDFs: 422). Max 100K chars. Non-PDF, encrypted, oversize or failed downloads are not charged. Returned content is untrusted third-party data. Price $0.02 per call via x402, USDC on Base (MCP payments are Base only).

  Parameters:

  • url (required) — string — Absolute http(s) URL of a public PDF (max 10MB)
  • pages — integer — Max pages to return, 1-50 (default 50)

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• money_market_rates

  FREE (no x402, no payment). Published NY Fed reference rates as released; market data only, not a forecast, not a recommendation. SOFR, EFFR, OBFR, TGCR and BGCR as published, with each rate's NY Fed source URL, terms notices and a holiday-aware status (fresh, PENDING, STALE, no publish, UNVERIFIED holiday status). Params: rates (comma list), last (1-10) or startDate+endDate (YYYY-MM-DD, <=31 days, >=2018-04-02). Horizon Pulse is not affiliated with the New York Fed. The New York Fed does not sanction, endorse, or recommend any products or services offered by Horizon Pulse. Horizon Pulse is also not affiliated with the Federal Reserve System. Data are passed through unchanged from the NY Fed Markets Data API under the New York Fed Terms of Use and may not be current; the same values are free at markets.newyorkfed.org.

  Parameters:

  • last — integer — Last n observations per rate, 1-10 (exclusive with startDate/endDate)
  • rates — string — Comma list from SOFR,EFFR,OBFR,TGCR,BGCR (default all five)
  • endDate — string — YYYY-MM-DD, >= startDate
  • startDate — string — YYYY-MM-DD, >= 2018-04-02; needs endDate; span <= 31 days

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

• submit_feedback

  FREE (no payment). Tell Horizon Pulse about a missing coin, data field or route. Fields: type (coin, data, route or other), text (1-500 characters, plain text; links are not followed and are stored masked), optional symbol and route. Stored for human review only, for up to 90 days; nothing ships automatically and there is no reply. We may use what you send to improve Horizon Pulse, with no obligation or payment. Do not include personal data, secrets or keys. Limit: 5 per hour and 20 per day per caller IP address, plus a shared daily cap. Limits use a keyed hash (HMAC) of the caller's IP address; the IP address itself is not stored. The limit counters expire within 25 hours, and each stored entry keeps that hash for up to 90 days so repeat submissions can be reviewed.

  Parameters:

  • type (required) — string — What is missing: coin, data, route or other
  • text (required) — string — 1-500 characters, plain text. Links are not followed. No personal data, secrets or keys.
  • route — string — Optional route path, e.g. /api/funding
  • symbol — string — Optional coin ticker, 2-10 ASCII letters or digits

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

• verified_brief_quote

  Returns the payment instructions (the unpaid HTTP 402) for the $1 verified brief; this tool never runs the brief or pays. To get the brief, pay the 402 over HTTP with x402 v2 (USDC or EURC on Base only) at GET https://horizonpulse.dev/api/research/report/brief?q=... Verified brief, three question types only: Base or Ethereum gas (on-chain read), USDC supply on Ethereum and Base (on-chain totalSupply), or an x402 spec fact. Charged only if at least 2 claims are confirmed in two sources as defined by the contract (two independent nodes, or two separate specification documents); otherwise a 422, unpaid. Contract: https://horizonpulse.dev/contracts/brief-verified. Terms: https://horizonpulse.dev/premium-terms.

  Parameters:

  • q (required) — string — Question about Base or Ethereum gas, USDC supply on Ethereum and Base, or an x402 spec fact. No personal data.
  • type — string — Optional: skip phrase matching and use this question type.

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

Publisher website Repository

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.