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Use for any crypto data question — token/coin prices, FX, commodities, stocks, OHLC history, DEX pairs and liquidity, DeFi TVL, yield/APY pools, on-chain SQL, wallet labels and net worth, social mindshare, news, or raw JSON-RPC against a chain. Routes across five tools that overlap heavily, so it also says which one to use and which are FREE — blockrun_price (crypto/FX/commodities free, Pyth), blockrun_dex (free, DexScreener), blockrun_defi (DefiLlama TVL + yields), blockrun_surf (83 endpoints —
Passed 9 of 14 test cases with the skill, and 2 of 14 without it.
and 17 more in the full report
12 fixed2 passed either way7 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 12 test cases the skill fixed. Same model, same prompt, with and without the skill.
I want to search DexScreener pair data for WETH specifically filtered to Base chain. Provide the tool parameters and state the cost.
| Checked | Without skill | With skill |
|---|---|---|
| uses blockrun_dex for chain-scoped pair searching | Missed | Passed |
| confirms that DEX pair queries carry no API charge | Passed | Passed |
The instructions your model reads when the skill loads.
Four live tools cover crypto data and they overlap. Pick by cost first — two of them are free, and paying for a quote you could get for nothing is the most common mistake here.
A fifth tool, blockrun_surf, was removed in 0.49.0: the gateway has answered every Surf path with HTTP 410 since 2026-09-06. Do not name it; the surf skill maps each former Surf capability to where it lives now — and lists the ones (on-chain SQL, cross-chain wallet labels, social mindshare, CEX order books) that have no BlockRun source yet.
| Question | Tool | Cost |
|---|---|---|
| What's BTC/ETH/any coin worth right now? | blockrun_price action:"price" category:"crypto" | FREE |
| Crypto OHLC history | blockrun_price action:"history" category:"crypto" | FREE |
| FX rate / commodity (gold, oil) | blockrun_price category:"fx" or "commodity" | FREE |
| Which symbols exist? | blockrun_price action:"list" | FREE |
| DEX pair, liquidity, volume, contract | blockrun_dex | FREE |
| Stock ticker catalog (12 markets) | blockrun_price action:"list" category:"stocks" | FREE — quotes/history withdrawn 2026-09-05 (501) |
| Token price by contract address | blockrun_defi path:"prices/{coins}" | $0.0020 |
| Raw JSON-RPC on 40 chains | blockrun_rpc | $0.0030 |
| Protocol TVL, chain TVL, yields/APY | blockrun_defi | $0.0060 |
| Who a Polymarket wallet is, and which wallets are linked to it | blockrun_markets polymarket/wallet/identity/{w}, .../cluster | $0.0085 |
| On-chain SQL, cross-chain wallet labels / net worth, social mindshare, CEX order books, ETF flows, unlocks | nothing on BlockRun yet — Surf retired 2026-09-06; say so | — |
Every price below is what x402 actually charges on Base (the base plus the gateway's $0.001 flat fee), verified against live payment-required headers — not the base you may see in a 402 body. The Solana gateway quotes the base alone; the account rail charges no fee.
The rule: a plain crypto price or a DEX pair is free. When the question needs something the four live tools do not have — labels, SQL, social, news, unlocks — tell the user BlockRun does not serve it right now. The tool that used to (blockrun_surf) was removed in 0.49.0.
Prediction markets go to blockrun_markets (Predexon): Polymarket, Kalshi, Limitless, Opinion and Predict.Fun, plus wallet clustering, smart money and UMA. For sports odds use markets/search with { q: "NBA" } or polymarket/events with { search: "NBA" } — the dedicated sports/* routes are degraded upstream, and the bare markets route with a league filter was removed on 2026-08-04 and 404s. Route odds, positions and market history to skills/prediction-markets/SKILL.md.
Free for crypto, FX and commodities. Equity is catalog-only: since 2026-09-05 the gateway answers stocks price/history with a pre-payment 501 ("We do not currently serve equity prices") — nothing is charged, retrying does not help, and the user should contact [email protected] for equity coverage. action:"list" still returns the ticker catalog for free.
blockrun_price({ action: "price", category: "crypto", symbol: "BTC-USD" }) // FREE
blockrun_price({ action: "history", category: "crypto", symbol: "ETH-USD",
resolution: "1h", from: 1750000000, to: 1750086400 }) // FREE
blockrun_price({ action: "price", category: "fx", symbol: "EUR-USD" }) // FREE
blockrun_price({ action: "price", category: "commodity", symbol: "XAU-USD" }) // FREE — gold
blockrun_price({ action: "list", category: "crypto" }) // FREE — discovery
blockrun_price({ action: "list", category: "stocks", market: "us", query: "AAPL" }) // FREE — catalog only; price/history → 501
test cases passed, vs 2 / 14 without
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