bots.st/hearth-x402-pay-safety-discovery
Hearth: x402 Pay-Safety & Discovery
Identify x402 APIs by on-chain usage
511 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 36
- Answered
- 3 of the last 3 calls
How to reach it
- MCP, HTTP
https://138-197-15-135.sslip.io/mcp
What it can do
| Tool | What it says it does |
|---|---|
ai_chat | Cheap LLM chat completion (flat $0.002). One-shot LLM completion for agents: send a prompt (and optional system message), get the answer text. Flat $0.002 per call, no account or API key; cheaper than typical x402 chat proxies. Up to ~2,000 chars of prompt and 600 output tokens. GET or POST JSON… |
ai_extract | Extract structured JSON from a web page (AI). Fetch a public web page and extract the fields you name into clean JSON (e.g. fields=name,price,currency,availability or company,ceo,founded). Missing values come back as null. Up to 20 fields. Example output… |
ai_summarize | Summarize a web page (AI). Fetch a public web page and return a concise summary: title, 3-7 key points, a one-paragraph TL;DR and the page's main entities. Good for research agents that need the gist of a URL cheaply. Example output: {"url":"https://example.com","title":"Example… |
ai_tx_explain | Explain a transaction in plain English (AI). Plain-English explanation of any transaction on Base, Ethereum, Arbitrum or Optimism: what happened, who sent what to whom (decoded token transfers with amounts and symbols), the method called, fee paid, and success/failure. Returns a summary plus the… |
base_erc20_balance | ERC20 token balance on Base. ERC20 balance of any wallet on Base, Ethereum, Arbitrum or Optimism (USDC by default) via balanceOf, with decimals applied. Deterministic, no LLM. Example output… |
base_token_info | ERC20 token metadata on Base. Name, symbol, decimals, total supply and bytecode presence for a token contract on Base, Ethereum, Arbitrum or Optimism. Deterministic, no LLM. Example output: {"chain":"base","address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","name":"USD… |
base_tx_status | Transaction status on Base. Status of a transaction on Base, Ethereum, Arbitrum or Optimism: pending/success/failed, block, confirmations, from/to, gas used, log count. Deterministic, no LLM. Example output… |
base_wallet | Wallet snapshot on Base. Native ETH balance, nonce (tx count) and whether the address is a contract, on Base, Ethereum, Arbitrum or Optimism. Deterministic, no LLM. Example output: {"chain":"base","address":"0x…","ethWei":"0","eth":"0","nonce":0,"isContract":false,"block":1}. Price: $0.0025 USDC… |
base_wallet_profile | Base wallet intelligence: holdings, activity, counterparties, labels. One-call Base wallet profile: ETH and major token holdings (USDC, WETH, USDT, DAI, cbBTC, cbETH, AERO, EURC) with USD values, total USD, nonce (lifetime sent tx count), EOA vs contract (incl. EIP-7702 smart account), recent… |
company_enrich | Company / domain enrichment from its website. Enrich a company domain: name, title, description, social profiles (LinkedIn, X, GitHub, etc.), contact emails and phones found on the homepage, language, tech hints (frameworks, analytics), mail provider from MX records, and key pages (about, pricing… |
contract_abi | Contract verification and ABI. Whether a contract on Base, Ethereum, Arbitrum or Optimism is source-verified (Sourcify), its name, compiler, full ABI, function and event signatures, and its EIP-1967 proxy implementation (also looked up). Deterministic, no LLM. Example output… |
dex_quote | DEX swap quote (Uniswap v3). Best Uniswap v3 single-hop quote for swapping amountIn of tokenIn to tokenOut on Base, Ethereum, Arbitrum or Optimism, checking all fee tiers (0.01/0.05/0.3/1%). Returns amountOut, effective price, best fee tier, gas estimate. Tokens: ETH, USDC, USDT or 0x address… |
evm_block | Latest block or block by number. Block number, timestamp, hash, tx count, gas used/limit and base fee for the latest (or given) block on Base, Ethereum, Arbitrum or Optimism. Deterministic, no LLM. Example output… |
evm_blocks | Batch: up to 10 blocks in one call. Batch block lookup: latest block plus up to 10 block numbers (comma-separated) on Base, Ethereum, Arbitrum or Optimism in one paid call. Same fields as /v1/evm/block (number, hash, timestamp, tx count, gas, base fee). Costs less than 10 single calls… |
evm_gas | Gas price and fee estimate. Current gas price, base fee, suggested priority fee and EIP-1559 maxFee for Base, Ethereum, Arbitrum or Optimism, plus a 21000-gas transfer cost in native units. Deterministic, no LLM. Example output… |
github_repo | GitHub repo stats and latest release. GitHub repository snapshot: stars, forks, open issues, watchers, language, license, topics, created/pushed dates, default branch, latest release (tag, date) and archived flag. Deterministic, no LLM. Example output… |
market_overview | Crypto market overview: total cap, dominance, trending. Crypto market snapshot: total market cap and 24h volume (USD), 24h market-cap change, BTC/ETH dominance, active coins, plus the top trending coins (name, symbol, market-cap rank, price, 24h change). Deterministic, no LLM. Example output… |
name_resolve | ENS / Basename resolve. Resolve an ENS name (vitalik.eth) or Basename (jesse.base.eth) to an address, or an address to its verified primary ENS name. On-chain, deterministic, no LLM. Example output… |
nft_metadata | NFT metadata. tokenURI and resolved JSON metadata (name, description, image, attributes) for an ERC-721 or ERC-1155 token on Base, Ethereum, Arbitrum or Optimism. IPFS/Arweave resolved. Deterministic, no LLM. Example output… |
nft_owner | NFT owner (ERC-721). Current owner of an ERC-721 token (ownerOf) on Base, Ethereum, Arbitrum or Optimism. Deterministic, no LLM. Example output: {"chain":"base","contract":"0x…","tokenId":"1","owner":"0x…"}. Price: $0.0025 USDC on Base via x402 (pass the payment in _meta["x402/payment"]). |
report_token | Full token / contract due-diligence report (risk score + AI analyst write-up). One call, full due diligence on an ERC20 on Base, Ethereum, Arbitrum or Optimism before you buy, list, accept or integrate it. Combines: honeypot/tax/mint/blacklist/hidden-owner scan with 0-100 risk score; owner &… |
report_wallet | Wallet / counterparty intelligence dossier (risk flags + AI profile). Know who you're dealing with before you pay, accept funds from, or trade with an EVM address. One call combines: GoPlus security flags on Ethereum and Base (phishing, sanctioned, mixer, theft, fake-token, darkweb links…)… |
route | Buy any x402 API through Hearth (standard: sellers up to $0.008). One call, any capability: describe what you need (q) and optional input (params JSON). Hearth classifies the intent (search, scrape, llm, image, enrich, onchain, price, social, geo, audio, security…), ranks verified x402 sellers by… |
route_plus | Buy any x402 API through Hearth (plus: sellers up to $0.05). One call, any capability: describe what you need (q) and optional input (params JSON). Hearth classifies the intent (search, scrape, llm, image, enrich, onchain, price, social, geo, audio, security…), ranks verified x402 sellers by real… |
social_hn | Hacker News search (stories and comments). Search Hacker News stories or comments by keyword, newest or most relevant first, with points, comment count, author, URL and HN link. Good for tracking mentions of a product, company or topic. Deterministic, no LLM. Example output… |
solana_balance | Solana SOL balance. Native SOL balance (lamports and SOL) for any Solana address. Deterministic, no LLM. Example output: {"chain":"solana","address":"…","lamports":1000000000,"sol":"1","slot":1}. Price: $0.0025 USDC on Base via x402 (pass the payment in _meta["x402/payment"]). |
solana_wallet_profile | Solana wallet intelligence: holdings, activity, counterparties, programs. One-call Solana wallet profile: SOL and SPL/Token-2022 holdings with USD values (top 25 by value), total USD, recent activity (last 100 signatures: count, failure rate, first/last seen, tx per day), programs used with labels… |
token_price | Token USD price. Current USD price for a token contract on Base, Ethereum, Arbitrum or Optimism (or the chain's native ETH if no address), with symbol, decimals and confidence. Aggregated from public DeFi price feeds. Deterministic, no LLM. Example output… |
token_safety | Token safety / honeypot / rug-risk check. Scam check for an ERC20 on Base, Ethereum, Arbitrum or Optimism: honeypot, buy/sell tax, mintable, owner can change balances, proxy, blacklist, open source, holder concentration, LP lock. Returns a 0-100 risk score, a verdict (low/medium/high) and the… |
token_transfers | Recent ERC20 transfers for a token or wallet. Recent ERC20 Transfer events (decoded: from, to, amount with decimals, symbol, tx hash, block) for a token contract, a wallet, or both, over the last ~2,000 blocks on Base, Arbitrum or Optimism (~500 on Ethereum). Up to 50 newest. Deterministic, no… |
wallet_portfolio | Multi-chain wallet portfolio with USD values. One call: ETH, WETH, USDC and USDT balances for an address across Base, Ethereum, Arbitrum and Optimism, each with a USD value, plus the total USD value and per-chain subtotals. Deterministic, no LLM. Example output… |
x402_discover | Find the best x402 API for a task (ranked by real paying usage). Describe what you need (e.g. 'token holder analysis on base', 'web search', 'flight prices') and get the top x402 endpoints ranked by relevance and REAL payer quality: 30-day unique paying wallets, calls per payer (repeat usage)… |
x402_precheck | x402 pre-payment safety check: pay / caution / avoid. Before your agent pays an unknown x402 endpoint, check it ($0.005). Give an x402 URL and/or payTo; optional maxPrice to catch bait-and-switch. Live unpaid probe (GET then POST) parsing x402 v1 body AND v2 header; canonical USDC contract… |
x402_precheck_batch | Batch x402 precheck: up to 10 URLs in one call. Run the full hearth.precheck.v2 check on up to 10 x402 URLs at once ($0.025, i.e. $0.0025 each). Pass urls as a comma-separated list (or JSON body {"urls": "a,b"}). Returns one result per URL plus a summary of pay/caution/avoid counts. Example… |
x402_seller_audit | x402 seller listing audit: spec compliance, discoverability, buyer-trust score + prioritized fixes. For people who SELL x402 endpoints. Give your endpoint URL; Hearth probes it unpaid (GET, falls back to POST) and grades it 0-100 (A-F) on 23 checks that decide whether agents can find, trust and… |
x402_seller_scores | Ranked x402 seller quality scores by category. Hearth's seller ranking data, per category (search, scrape, llm, image, enrich, onchain, price, social, weather, geo, audio, security) or free-text q: blended rank score with its parts, 30d paying usage, Hearth's own purchase outcomes (valid-response… |
In its maker's words
Check x402 APIs before paying (pay/caution/avoid); find x402 APIs by real paid usage.
- Website
- 138-197-15-135.sslip.io/llms.txt
- Publisher
- 138-197-15-135.sslip.io
- Listed from
- the official MCP Registry as
io.sslip.138-197-15-135/hearth-onchain - Version
- 1.2.0, updated 29 Oct 2026
- Kinds of work
- Security and trust, Search and research, Crypto and web3
The domain it lives on
- sslip.io
- registered 15 Aug 2015 (11 years ago), at NAMECHEAP INC, its home page is a working site
From our own crawl of domain names: registry records and the home page as our crawler last saw it.
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 511 ms | |
| Answered | 2108 ms | |
| Answered | 1194 ms |
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