BitBooth

The multi-chain x402 payment gateway for AI agents. 38 paid endpoints, up to 8 (network, asset) tuples in every accepts[]. Agents pay in USDC or LINK on Base, XRP/RLUSD/USDC IOU on XRPL native, XLM/USDC on Stellar, or native XRP on XRPL EVM Sidechain. Same endpoint, agent picks. No accounts. No API keys. No signup.

Skills

• echo
  Smallest possible paid endpoint. Pay 0.001 USDC, get a JSON echo back. Reference implementation of the x402 + CDP Facilitator + Bazaar discovery loop.
  x402paidmulti-chainutility
• json-repair
  Take any almost-JSON string (LLM tool output, broken API response, etc.), fix common errors (trailing commas, single quotes, unquoted keys, missing brackets), and optionally validate against a JSON Schema. Built for AI agents that wrap every tool call in defensive parsing.
  x402paidmulti-chainutility
• faker
  Structured synthetic data on demand. Pass a template like { name: "person.fullName", email: "internet.email" } and a count, receive an array of records ready to seed forms, populate test databases, or feed mock data into prompt examples.
  x402paidmulti-chainutility
• render-pro
  Full Playwright JS rendering + Readability extraction. Pay 0.05 USDC, get clean markdown back from any URL including SPAs and JS-heavy sites that naive fetch cannot crawl.
  x402paidmulti-chaindata
• web-diff
  Render any URL with full Playwright JS rendering, then return both the current markdown snapshot AND a structured diff against the previous markdown you supply. Built for monitoring agents tracking competitor sites, docs pages, pricing changes, or any change-detection workflow.
  x402paidmulti-chaindata
• llm-tool-validate
  JSON Schema validation + optional auto-coercion + a confidence score for any LLM tool-call payload. Pair with /v1/cdp/json-repair to fix malformed JSON first, then validate against your tool schema. Built for agents that need a programmatic gate between the model and downstream system calls.
  x402paidmulti-chainutility
• portfolio-scan
  Pay 0.012 USDC, hand in 1..5 EVM addresses, get back per-address native ETH + USDC holdings on Base mainnet plus a top-level totals rollup. Built for agents tracking treasury splits across multiple wallets or pre-flighting a counterparty across known addresses.
  x402paidmulti-chaindata
• rss
  Pay 0.001 USDC, get a normalised JSON view of any RSS 2.0 or Atom 1.0 feed. One shape regardless of protocol: feed metadata plus an items array with HTML-stripped content snippets. Capped at 2MB body and 10s timeout, SSRF-blocked. Built for agents monitoring news, releases, blog updates, GitHub release feeds, status pages, podcasts.
  x402paidmulti-chaindata
• sitemap
  Pay 0.01 USDC, hand in a domain, get back the canonical site URL list discovered via robots.txt + sitemap.xml + sitemapindex chain. Returns a flat deduped list of {loc, lastmod, changefreq, priority} entries capped at 5000 URLs per call, with sitemapindex follow-through capped at 5 child sitemaps. SSRF-blocked, body-capped at 5MB, 10s timeout. Built for crawlers, SEO auditors, and agents that enumerate URLs before paying for the heavier render-pro extraction.
  x402paidmulti-chaindata
• dns
  Pay 0.01 USDC, get DNS records for any hostname. Supports A, AAAA, MX, TXT, NS, CNAME, SOA, SRV, CAA. Built on Node's built-in resolver with a 5s timeout cap; rejects IPv4/IPv6 inputs. Built for agents inspecting infra, debugging delivery, or pre-flighting a target hostname.
  x402paidmulti-chainutility
• whois
  Pay 0.01 USDC, get the parsed whois record for any domain — registrar, creation/updated/expiry dates, name servers, status flags, plus the raw whois text. Two-hop resolution via whois.iana.org then the authoritative registry over TCP port 43. 5s timeout cap per connection. Built for agents auditing domain ownership, monitoring expiry, or pre-flighting a target.
  x402paidmulti-chaindata
• webhook-sig-verify
  Pay 0.005 USDC, verify a webhook signature against the provider canonical HMAC scheme. Supports stripe, github, vercel, cdp, slack, and generic HMAC-SHA256. Constant-time compare, clock-skew tolerance on timestamp-bearing providers. Stateless — caller supplies their secret in the request body, BitBooth never stores it. The boring API plumbing primitive every agent reinvents poorly.
  x402paidmulti-chainutility
• jwt-verify
  Pay 0.005 USDC, verify a JWT signature plus the canonical claims (iss / aud / exp / nbf) against an inline publicKey (PEM) or sharedSecret. Supports HS256/384/512 + RS256/384/512. Constant-time HMAC compare, configurable clock-skew tolerance, alg=none rejected. Stateless — caller supplies their key in the request body, BitBooth never stores it. Same plumbing-primitive thesis as webhook-sig-verify, different protocol family.
  x402paidmulti-chainutility
• pii-redact
  Pay 0.008 USDC, strip emails, phones, SSNs, credit cards, IPv4 addresses, and hex-looking secrets from a text blob before passing it to an LLM, log sink, or third-party API. Pure regex — no LLM inference, deterministic output, sub-cent per call. Compliance primitive for agents in regulated industries (health, finance, legal). Byte counts on the response are auditable evidence of redaction for SOC2 / HIPAA logs.
  x402paidmulti-chainutility
• regex-test
  Pay 0.005 USDC, safely compile + run a regex against a corpus with a hard 50ms CPU deadline. Returns structured matches (index, length, full match, capture groups). Supports JS engine flags g/i/m/s/u/y/d. Catastrophic backtracking surfaces as a regex_timeout instead of stalling the caller. The plumbing primitive every agent that consumes user-supplied regex reinvents poorly.
  x402paidmulti-chainutility
• sentiment
  Pay 0.005 USDC, get a VADER-style sentiment score for any English text blob — compound polarity in [-1, 1], a positive|neutral|negative label, a proportional breakdown across the three classes, and the token count. No LLM inference, deterministic output, sub-cent per call. Curated ~180-word lexicon with negation handling (×-0.74 within 3 tokens) and booster amplification (very/really/extremely ×1.293). Input capped at 10000 chars; tokenisation capped at 2000 tokens. Built for agents triaging support tickets, social mentions, review feeds, or chat transcripts before routing.
  x402paidmulti-chaindata
• og-card
  Pay 0.01 USDC, send a URL, get the structured OpenGraph + meta-tag preview every link-preview / social-card / classify-before-scrape pipeline needs. Returns og:title, og:description, og:image, og:type, og:site_name, og:url, the full twitter:* card block, plus standard HTML head fields (title, description, canonical, favicon, lang). Pure JS regex extraction, no LLM, no headless browser. 8s timeout, 512 KB body cap, non-HTML rejected. The lightweight pre-flight before paying for the heavier render-pro extraction.
  x402paidmulti-chaindata
• youtube
  Pay 0.015 USDC, send a YouTube URL (youtube.com or youtu.be), get the full transcript as an array of {start, dur, text} segments in seconds plus total duration and detected language. Optional `lang` (ISO-639-1, e.g. "en", "pt-BR") selects a non-default caption track. InnerTube Android-client path first, classic HTML scrape fallback. No LLM, no headless browser. Errors surface as 502 with reason (captions_disabled, no_captions, language_not_available, video_unavailable, rate_limited). Built for agents that summarise, classify, or search video content before paying for the heavier LLM token cost.
  x402paidmulti-chaindata
• chain-block-number
  Latest block height for Ethereum or Base mainnet via eth_blockNumber. Pay 0.001 USDC, get the current chain tip as decimal + hex.
  x402paidmulti-chaindata
• chain-chain-id
  Chain ID (EIP-155) via eth_chainId — confirm which network an RPC is on. Pay 0.001 USDC. Supports Ethereum and Base mainnet.
  x402paidmulti-chaindata
• chain-gas-price
  Current gas price via eth_gasPrice for Ethereum or Base mainnet — wei, gwei, and a human label. Pay 0.001 USDC.
  x402paidmulti-chaindata
• chain-network-info
  Chain ID, latest block height, and gas price in one batched call for Ethereum or Base mainnet. Pay 0.002 USDC — three RPC reads, one receipt.
  x402paidmulti-chaindata
• chain-native-balance
  Native ETH balance of any address on Ethereum or Base mainnet via eth_getBalance — wei + decimal ETH. Pay 0.002 USDC.
  x402paidmulti-chaindata
• chain-erc20-balance
  ERC-20 token balance for any wallet — USDC, USDT, DAI, or any token contract — via balanceOf eth_call, with decimals applied. Ethereum or Base mainnet. Pay 0.003 USDC.
  x402paidmulti-chaindata
• chain-erc1155-balance
  ERC-1155 balance via balanceOf(owner, id) eth_call — how many copies of a token_id a wallet holds. Ethereum or Base mainnet. Pay 0.003 USDC.
  x402paidmulti-chaindata
• chain-allowance
  ERC-20 allowance via allowance(owner, spender) eth_call — how much a spender is approved to move. Ethereum or Base mainnet. Pay 0.003 USDC.
  x402paidmulti-chaindata
• chain-total-supply
  totalSupply() of an ERC-20 or ERC-721 contract via eth_call, with decimals applied when the contract exposes them. Ethereum or Base mainnet. Pay 0.003 USDC.
  x402paidmulti-chaindata
• chain-nft-owner
  Current owner of an ERC-721 token via ownerOf(tokenId) eth_call. Ethereum or Base mainnet. Pay 0.003 USDC.
  x402paidmulti-chaindata
• chain-code
  Is an address a contract? eth_getCode — returns isContract, bytecode size, and keccak hash of the code. Ethereum or Base mainnet. Pay 0.003 USDC.
  x402paidmulti-chaindata
• chain-storage
  Read a raw storage slot from any contract via eth_getStorageAt. Ethereum or Base mainnet. Pay 0.005 USDC.
  x402paidmulti-chaindata
• chain-nonce
  Next transaction nonce for any wallet via eth_getTransactionCount (latest + pending). Ethereum or Base mainnet. Pay 0.003 USDC.
  x402paidmulti-chaindata
• chain-tx
  Full transaction by hash via eth_getTransactionByHash — from, to, value, input, gas fields. Ethereum or Base mainnet. Pay 0.008 USDC.
  x402paidmulti-chaindata
• chain-receipt
  Transaction receipt via eth_getTransactionReceipt — status, gas used, logs (decoded count), contractAddress. Ethereum or Base mainnet. Pay 0.005 USDC.
  x402paidmulti-chaindata
• chain-block
  Block header + transaction hashes by number, hex, or tag (latest/safe/finalized) via eth_getBlockByNumber. Ethereum or Base mainnet. Pay 0.003 USDC.
  x402paidmulti-chaindata
• chain-call
  Simulate a read-only contract call via eth_call — to + data (+ optional from/value), returns raw return data. No transaction sent. Ethereum or Base mainnet. Pay 0.005 USDC.
  x402paidmulti-chaindata
• chain-estimate-gas
  Estimate gas for a transaction via eth_estimateGas before signing it — to/data/value/from supported. Ethereum or Base mainnet. Pay 0.004 USDC.
  x402paidmulti-chaindata
• chain-erc20-transfers
  Decoded ERC-20 Transfer logs for a token via eth_getLogs — sender, recipient, amount per event, filterable by address and block range (max 2,000 blocks). Ethereum or Base mainnet. Pay 0.005 USDC.
  x402paidmulti-chaindata
• chain-contract
  Contract introspection via batched eth_call — name, symbol, decimals, totalSupply, and ERC-165 interface probes (ERC-20/721/1155 detection). Ethereum or Base mainnet. Pay 0.005 USDC.
  x402paidmulti-chaindata

How to call

https://app.heinrichstech.com

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