MCPFax Macro & Market Intelligence

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

Prices and rates that state when they were observed, so you know what you are trusting.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "MCPFax Macro & Market Intelligence": {
      "url": "https://mcpfax-markets.bowling-anthony.workers.dev/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (18)

• us_macro_indicators read-only

  US macroeconomic indicators from the St. Louis Fed (FRED): effective federal funds rate in percent, CPI and core PCE index levels, unemployment rate in percent, and M2 money stock, each with its own observation date. IMPORTANT: this is a STORED SNAPSHOT, not a live read of FRED at request time — fred.stlouisfed.org blocks Cloudflare Workers (HTTP 520), so the snapshot is refreshed out of band. Every response carries `snapshot.captured_at` and `snapshot.age_hours`; check them before relying on the figures, and read `as_of` for the underlying observation date. CPI/PCE/M2 are index levels, not year-over-year rates. Costs $0.01 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /macro.

  Parameters:

  • as_of — string — Return the stored capture in effect at this UTC date or ISO timestamp instead of the latest one (append-only history; not subject to the freshness limit) Example: '2026-08-11'.

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

• us_treasury_yields read-only

  US Treasury constant-maturity yields for the 2, 10 and 30 year tenors in percent, the computed 10s2s curve spread with an explicit inverted flag, and the 30-year fixed mortgage rate. IMPORTANT: this is a STORED SNAPSHOT, not a live read — the FRED host blocks Cloudflare Workers (HTTP 520), so it is refreshed out of band. Every response carries `snapshot.captured_at` and `snapshot.age_hours`; check them before trading or quoting off these numbers. Costs $0.01 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /rates.

  Parameters:

  • as_of — string — Return the stored capture in effect at this UTC date or ISO timestamp instead of the latest one (append-only history; not subject to the freshness limit) Example: '2026-08-11'.

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

• fx_reference_rates read-only

  European Central Bank reference foreign-exchange rates for a chosen base currency, with the ECB observation date. Refreshed automatically by a Worker cron from Frankfurter. These are daily reference rates, not live tradable quotes, and every response carries `snapshot.captured_at` and `snapshot.age_hours`. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /fx.

  Parameters:

  • base — string — Base currency ISO-4217 (default USD) Example: 'USD'.
  • as_of — string — Return the stored capture in effect at this UTC date or ISO timestamp instead of the latest one (append-only history; not subject to the freshness limit) Example: '2026-08-11'.
  • symbols — string — Comma-separated target currencies Example: 'EUR,GBP,JPY'.

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

• crypto_spot_prices read-only

  Coinbase spot price in USD for up to ten crypto assets. Use this for a current crypto price. Returns an explicit per-symbol error rather than a guessed number when an asset is unavailable. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /crypto.

  Parameters:

  • symbols — string — Comma-separated asset symbols (default BTC,ETH,SOL) Example: 'BTC,ETH'.

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

• stablecoin_peg_deviation read-only

  USDC, USDT and DAI spot price against USD plus each one's peg deviation in basis points. Use this to check whether a stablecoin is holding its dollar peg before settling or holding value in it. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /stablecoin.

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

• base_gas_price read-only

  Current Base mainnet gas price read live from JSON-RPC, in both wei and gwei. Use this to estimate the cost of a Base transaction before submitting it. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /gas.

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

• defi_protocols read-only

  Rank DeFi protocols by total value locked from DefiLlama, filtered by chain, category or name substring, with each protocol's slug, category, chain list, TVL in USD, 1d/7d TVL change and market cap. Use it to size a protocol, find the biggest venues on a chain, or resolve the slug the protocol-detail tool needs. A protocol DefiLlama publishes no TVL for keeps a null figure, never a zero. Read live at request time and held for 5 minutes. Costs $0.008 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /defi/protocols.

  Parameters:

  • chain — string — Only protocols deployed on this chain Example: 'Base'.
  • limit — integer — How many to return, 1-100 (default 20) Example: '20'.
  • search — string — Name or slug substring Example: 'aave'.
  • category — string — Exact DefiLlama category Example: 'Lending'.

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

• defi_protocol read-only

  Full DefiLlama detail for one protocol by slug: current TVL in USD with its observation time, per-chain TVL breakdown, category, token symbol, chain list, description and links. Use it after finding a slug with the protocols list. An unknown slug returns an honest not_found and is not billed. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /defi/protocol.

  Parameters:

  • slug — string — DefiLlama protocol slug (required) Example: 'aave-v3'.

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

• defi_chains read-only

  Total value locked per blockchain from DefiLlama, ranked high to low, with each chain's native token symbol and EVM chain id plus the summed cross-chain total. Use it to compare chains by capital deployed or to check where a chain sits. A chain with no published TVL keeps a null figure and is excluded from the total rather than counted as zero. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /defi/chains.

  Parameters:

  • limit — integer — How many to return, 1-100 (default 25) Example: '25'.
  • search — string — Chain name substring Example: 'Base'.

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

• defi_yields read-only

  Screen DefiLlama's yield-pool universe by chain, project, token symbol, minimum TVL and stablecoin-only, ranked by APY, returning each pool's stable pool_id, chain, project, symbol, TVL in USD, total/base/reward APY, 30-day mean APY, impermanent-loss risk and exposure. Use it to find where a given asset earns yield. An unpublished APY stays null, never zero. Costs $0.008 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /defi/yields.

  Parameters:

  • chain — string — Only pools on this chain Example: 'Base'.
  • limit — integer — How many to return, 1-100 (default 20) Example: '20'.
  • symbol — string — Token symbol substring Example: 'USDC'.
  • project — string — Only pools from this DefiLlama project Example: 'aave-v3'.
  • min_tvl_usd — number — Minimum pool TVL in USD (default 1000000) Example: '1000000'.
  • stablecoin_only — boolean — Only stablecoin pools Example: 'true'.

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

• defi_token_prices read-only

  Price arbitrary on-chain tokens with DefiLlama's coins API, addressed as chain:address (or coingecko:id), returning price in USD, symbol, decimals, a confidence score and the pricing timestamp for each. Use it to value a DeFi position holding tokens no exchange lists. This is NOT the exchange spot-price tool: use the crypto spot tool for a plain price of a major asset. A token DefiLlama cannot price inside search_width returns null, never a substituted price. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /defi/token-prices.

  Parameters:

  • coins — string — Comma-separated DefiLlama coin ids as chain:address or coingecko:id, up to 20 (required) Example: 'base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913,coingecko:ethereum'.
  • search_width — string — How far back a price may be taken from (default 6h) Example: '6h'.

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

• polymarket_markets read-only

  List live Polymarket markets ordered by volume or liquidity, each with its question, Gamma id, condition id, every outcome with its USDC price and CLOB token id, best bid/ask, last trade price, volume, liquidity and end date. Use it to see what the largest real-money prediction markets are pricing right now. Prices are probabilities between 0 and 1. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /polymarket/markets.

  Parameters:

  • limit — integer — How many markets, 1-50 (default 10) Example: '10'.
  • order — string — volumeNum, liquidityNum, startDate or endDate Example: 'volumeNum'.
  • closed — boolean — Return closed markets instead of open ones Example: 'false'.
  • ascending — boolean — Sort ascending instead of descending Example: 'false'.

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

• polymarket_events read-only

  List Polymarket events — the grouped questions such as an election or a rate decision — ordered by volume, each with title, slug, end date, volume, 24h volume, liquidity, open interest, its full market count and the priced member markets themselves. Use it when a question has many candidate outcomes and you want them together rather than one at a time. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /polymarket/events.

  Parameters:

  • limit — integer — How many events, 1-25 (default 5) Example: '5'.
  • closed — boolean — Return closed events instead of open ones Example: 'false'.
  • ascending — boolean — Sort ascending instead of descending Example: 'false'.
  • markets_per_event — integer — Member markets per event, 1-25 (default 5) Example: '5'.

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

• polymarket_market read-only

  One Polymarket market by Gamma id, slug or condition id, with its full outcome pricing and the LIVE CLOB order book for each outcome token: best bid, best ask, midpoint, spread and the top price levels with sizes. Use it before taking a position, to see real depth rather than only a last price. An outcome with no order book returns a null book rather than a fabricated price; an unknown identifier returns not_found and is not billed. Costs $0.008 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /polymarket/market.

  Parameters:

  • id — string — Polymarket Gamma market id Example: '908713'.
  • slug — string — Market slug, if you have no id Example: 'fed-rate-hike-in-2026'.
  • depth — integer — Order-book levels per side, 1-20 (default 5) Example: '5'.
  • condition_id — string — Full 0x-prefixed 32-byte condition id (66 chars), as returned by the markets/events/search tools Example: '0xf708d6652a477c59d7da116df8ff3d393b993e7037367b96cc33aa519cb48354'.

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

• polymarket_trades read-only

  Recent public trade prints for one Polymarket market, addressed by its condition id: timestamp, side, outcome, price, size, notional in USD, the trader's published pseudonym and wallet, and the transaction hash. Use it to see whether a quoted price is actually trading and who is behind the flow. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /polymarket/trades.

  Parameters:

  • limit — integer — How many trades, 1-100 (default 20) Example: '20'.
  • market — string — Full 0x-prefixed 32-byte condition id (66 chars) of the market, as returned by the markets/events/search tools (required) Example: '0xf708d6652a477c59d7da116df8ff3d393b993e7037367b96cc33aa519cb48354'.

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

• polymarket_leaderboard read-only

  Polymarket's public trader leaderboard by traded volume or realised profit over a 1d, 7d, 30d or all-time window, returning each trader's rank, published pseudonym and display name, wallet address and USDC amount. Use it to find who is moving size on the venue. A trader who publishes no name stays null; no name is inferred. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /polymarket/leaderboard.

  Parameters:

  • limit — integer — How many traders, 1-50 (default 10) Example: '10'.
  • metric — string — volume or profit (default volume) Example: 'volume'.
  • window — string — 1d, 7d, 30d or all (default 7d) Example: '7d'.

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

• manifold_markets read-only

  Search or browse Manifold Markets questions, returning each one's probability, outcome type, volume, liquidity, unique bettor count, close time, creator and resolution state. Manifold is a PLAY-money venue denominated in MANA, so treat a probability as a crowd forecast rather than a real-money price; every response says so and reports the token. Costs $0.005 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /manifold/markets.

  Parameters:

  • sort — string — score, newest, liquidity, close-date or most-popular Example: 'score'.
  • limit — integer — How many markets, 1-50 (default 10) Example: '10'.
  • filter — string — all, open, closed or resolved (default open) Example: 'open'.
  • search — string — Question text to search for Example: 'bitcoin'.

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

• prediction_market_search read-only

  Find a prediction market by question text across two venues at once — Polymarket (USDC, real money) and Manifold (MANA, play money) — returning a single normalised list with the venue, its currency, the question, the YES probability, volume, end date and a direct URL, plus a per-venue status so a venue that failed is visible rather than silently dropped. Use it when you know the question but not the venue or the id. Kalshi is deliberately not included: its API answers Cloudflare Workers with HTTP 429 on every attempt. Costs $0.008 USDC per call via x402 on Base; an unpaid call returns the payment challenge instead of data, and a call that returns no data is never settled so it costs nothing. Equivalent HTTP route: GET /prediction-markets/search.

  Parameters:

  • q — string — Question text to search for (required) Example: 'fed rate'.
  • venues — string — Comma-separated subset of polymarket,manifold Example: 'polymarket,manifold'.
  • limit_per_venue — integer — Results per venue, 1-20 (default 5) Example: '5'.

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

Publisher website

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