# Services from agents.crowdspark.me on Zero

> agents.crowdspark.me serves 54 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/agents.crowdspark.me
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/agents.crowdspark.me/health.json

## Services

- [Token Contract Inspector (Base/Ethereum/Optimism/Arbitrum/Polygon)](https://www.zero.xyz/c/token-contract-inspector-base-ethereum-optimism-arbitrum-polygon-289ade09/llms.txt): $0.002/call via x402. Inspects a token contract address on Base, Ethereum, Optimism, Arbitrum, or Polygon to detect contract type (ERC20/ERC721/ERC1155), name, symbol, decimals, total supply, owner, and upgradeable-proxy details.
- [ECB Currency Converter (Multi-Target)](https://www.zero.xyz/c/ecb-currency-converter-multi-target-83ed68e3/llms.txt): $0.002/call via x402. Converts a monetary amount from one source currency into up to 10 target currencies using European Central Bank exchange rates, returning rounded amounts, rates, inverse rates, and 7-day change percentages.
- [Agent Tools – Bundle Dependency Audit](https://www.zero.xyz/c/agent-tools-bundle-dependency-audit-a8eaeff7/llms.txt): $0.05/call via x402. Audits an npm (package.json) or PyPI (requirements.txt) manifest for known CVEs, deprecation, and version staleness, optionally screening a README for prompt injection, returning a safe/caution/avoid verdict with prioritized fix recommendations.
- [ENS Lookup (Name-to-Address & Reverse)](https://www.zero.xyz/c/ens-lookup-name-to-address-reverse-aea42516/llms.txt): $0.002/call via x402. Resolves ENS names to Ethereum addresses (with avatar) or reverses an address to its primary ENS name, with forward verification, reading live from Ethereum mainnet.
- [Agent Tools – Multi-Chain Wallet Balance](https://www.zero.xyz/c/agent-tools-multi-chain-wallet-balance-00d8d889/llms.txt): $0.002/call via x402. Fetches native coin balance (with USD value via Chainlink) and up to 10 ERC20 token balances for a wallet address on Base, Ethereum, Optimism, Arbitrum, or Polygon.
- [Agent Tools Domain Lookup](https://www.zero.xyz/c/agent-tools-domain-lookup-de911107/llms.txt): $0.003/call via x402. Returns comprehensive domain intelligence in one call: WHOIS/RDAP registration data, DNS records (A/AAAA/MX/NS/TXT), SPF, DMARC, and HTTPS reachability for any domain.
- [Agent Tools Email Validation](https://www.zero.xyz/c/agent-tools-email-validation-f80dc750/llms.txt): $0.001/call via x402. Validates an email address by checking syntax, MX records, disposable/temporary domain status, role address type, and free provider classification to return a deliverable guess.
- [URL Dossier — Page + Domain + IP Bundle](https://www.zero.xyz/c/url-dossier-page-domain-ip-bundle-d34ef0f0/llms.txt): $0.007/call via x402. Returns a combined dossier on any public URL: clean markdown content, page metadata, outbound links, domain WHOIS/DNS/SPF/DMARC intelligence, and IP/network lookup — all in one call with a trust summary.
- [World Bank Macro Indicators by Country](https://www.zero.xyz/c/world-bank-macro-indicators-by-country-e988f236/llms.txt): $0.003/call via x402. Retrieves World Bank macroeconomic indicators (GDP, inflation, unemployment, etc.) for up to 10 countries across a range of years
- [x402 Readiness Checker](https://www.zero.xyz/c/x402-readiness-checker-c330fe4d/llms.txt): $0.005/call via x402. Probes a paid API URL without paying to verify it correctly implements the x402 payment protocol and reports a readiness score with specific issues.
- [Package Security Advisory Lookup](https://www.zero.xyz/c/package-security-advisory-lookup-c77f8e58/llms.txt): $0.005/call via x402. Returns known vulnerabilities, license, latest version, deprecation status, and a safe/caution/avoid verdict for a given npm, PyPI, cargo, Go, or Maven package version.
- [Business Day Date Calculator](https://www.zero.xyz/c/business-day-date-calculator-13d5caf4/llms.txt): $0.001/call via x402. Adds or subtracts N business days from a given date, skipping weekends and public holidays for a specified country, returning the result date, weekday, skipped holidays, and working-day status.
- [Agent Tools Web Screenshot](https://www.zero.xyz/c/agent-tools-web-screenshot-f2494899/llms.txt): $0.015/call via x402. Captures a screenshot of any public web page using headless Chrome and returns the image as base64-encoded PNG or JPEG along with metadata like title, HTTP status, and final URL.
- [Agent Tools Web Page Reader](https://www.zero.xyz/c/agent-tools-web-page-reader-4df24ee9/llms.txt): $0.004/call via x402. Fetches a public URL and returns clean markdown content plus structured metadata including title, description, Open Graph tags, outbound links, word count, and extracted dates, prices, emails, and phones.
- [Agent Tools – Prompt Injection Screener](https://www.zero.xyz/c/agent-tools-prompt-injection-screener-852ce246/llms.txt): $0.005/call via x402. Screens text for prompt-injection attacks, returning a safe/suspicious/malicious verdict, a 0-100 risk score, and matched spans with categories.
- [Blockchain Transaction Decoder](https://www.zero.xyz/c/blockchain-transaction-decoder-4da256c5/llms.txt): $0.003/call via x402. Decodes and explains a blockchain transaction on Base, Ethereum, Optimism, Arbitrum, or Polygon — returning status, parties, value, gas, fees, method name, ERC20 transfers, and approvals.
- [Agent Tools Batch Email Validation](https://www.zero.xyz/c/agent-tools-batch-email-validation-265de088/llms.txt): $0.006/call via x402. Validates up to 10 email addresses in a single call, checking syntax, MX records, disposable/role/free-provider status, and returning a deliverability guess per address.
- [Token Preflight Risk Check](https://www.zero.xyz/c/token-preflight-risk-check-7b4471de/llms.txt): $0.004/call via x402. Checks a token contract on Base/Ethereum/Optimism/Arbitrum/Polygon for structure, risk score, and simulated ERC20 transfer gas cost before swapping, listing, or paying with it.
- [SEC EDGAR Filings Lookup](https://www.zero.xyz/c/sec-edgar-filings-lookup-7d4525f0/llms.txt): $0.005/call via x402. Retrieves recent SEC EDGAR filings for a US-listed company by ticker or CIK, with form type, dates, 8-K item codes, accession numbers, and direct document links.
- [ClinicalTrials.gov Search](https://www.zero.xyz/c/clinicaltrials-gov-search-4cdac6d7/llms.txt): $0.005/call via x402. Searches ClinicalTrials.gov for clinical studies by keyword, condition, or intervention, returning structured trial metadata including NCT ID, status, phases, enrollment, sponsors, and site counts.
- [Agent Tools OCR – Read Text from Image URL](https://www.zero.xyz/c/agent-tools-ocr-read-text-from-image-url-6a0e0c1a/llms.txt): $0.005/call via x402. Performs OCR on a public image URL (PNG/JPEG) and returns all extracted text with line breaks preserved
- [IP Address Lookup (Security Triage & RDAP)](https://www.zero.xyz/c/ip-address-lookup-security-triage-rdap-d051fd05/llms.txt): $0.003/call via x402. Returns owning network, allocation range, registry country (RDAP), and reverse DNS for any IPv4 or IPv6 address.
- [Gas Estimate & Fee Quote API (Multi-Chain EVM)](https://www.zero.xyz/c/gas-estimate-fee-quote-api-multi-chain-evm-8b3d156b/llms.txt): $0.002/call via x402. Estimates gas units and returns slow/standard/fast fee tiers with USD cost for a transaction on Base, Ethereum, Optimism, Arbitrum, or Polygon — including L1 data fees for OP-stack chains and revert detection.
- [Agent Tools Document Extract (URL)](https://www.zero.xyz/c/agent-tools-document-extract-url-7dfdd7c2/llms.txt): $0.012/call via x402. Parses a PDF or image URL using OCR and extracts full text plus structured fields (dates, amounts, totals, identifiers, tables, key-value pairs, emails, phones, URLs)
- [Agent Tools – Full Email Risk Check](https://www.zero.xyz/c/agent-tools-full-email-risk-check-2bc02cbf/llms.txt): $0.004/call via x402. Performs a comprehensive email risk assessment combining address validation, disposable detection, MX checks, sender domain health signals (age, registrar, SPF, DMARC, website reachability), and a 0–100 risk score with an accept/review/reject verdict.
- [Agent Tools FX Rates (European Central Bank)](https://www.zero.xyz/c/agent-tools-fx-rates-european-central-bank-c5d36455/llms.txt): $0.001/call via x402. Returns ECB reference exchange rates for a given base currency, optionally filtered by symbols and date, covering latest or historical rates.
- [CrowdSpark Agent Tools – OCR from Uploaded Image](https://www.zero.xyz/c/crowdspark-agent-tools-ocr-from-uploaded-image-5291ffa7/llms.txt): $0.005/call via x402. Extracts text from an uploaded PNG, JPEG, or WebP image using OCR, returning the recognized text as a string
- [Business Day Calculator](https://www.zero.xyz/c/business-day-calculator-6ef8dea2/llms.txt): $0.001/call via x402. Counts working days between two dates, skipping weekends and national public holidays for a given country.
- [Agent Tools – Timezone Conversion](https://www.zero.xyz/c/agent-tools-timezone-conversion-902b6c1c/llms.txt): $0.001/call via x402. Converts a local time from one IANA timezone to another with DST-correct UTC offsets, or converts the current time between zones.
- [Public Holiday Calendar API](https://www.zero.xyz/c/public-holiday-calendar-api-41b64b2b/llms.txt): $0.001/call via x402. Returns the list of public holidays for a given country and year, covering 100+ countries, for use in scheduling, payroll, and delivery planning.
- [Agent Tools: Web Page to Markdown](https://www.zero.xyz/c/agent-tools-web-page-to-markdown-7efad007/llms.txt): $0.0015/call via x402. Fetches a public web page URL and returns its main content as clean, LLM-ready markdown, stripping navigation, scripts, and boilerplate.
- [Agent Tools Web Meta Extractor](https://www.zero.xyz/c/agent-tools-web-meta-extractor-ca5db57f/llms.txt): $0.001/call via x402. Fetches link preview and unfurl data for a given URL, including title, description, Open Graph image, site name, canonical URL, favicon, and final URL after redirects.
- [PII Redaction API](https://www.zero.xyz/c/pii-redaction-api-271cb4ad/llms.txt): $0.003/call via x402. Scrubs personally identifiable information (emails, phones, SSNs, credit cards, IBANs, IPs, MACs, API keys, JWTs, private keys, wallet addresses) from text using label, hash, or star masking
- [Agent Tools – Safe Web Read with Prompt Injection Detection](https://www.zero.xyz/c/agent-tools-safe-web-read-with-prompt-injection-detection-f1d134f4/llms.txt): $0.005/call via x402. Fetches a public web page, converts it to clean markdown, and screens it for prompt injection attacks, returning a safety verdict, score, and matched spans.
- [CrowdSpark Agent Tools – Audio Transcription (Whisper)](https://www.zero.xyz/c/crowdspark-agent-tools-audio-transcription-whisper-c1f5836c/llms.txt): $0.02/call via x402. Transcribes or translates an audio file from a public URL using Whisper large v3 turbo, returning full text, detected language, duration, timestamped segments, and WebVTT captions.
- [Agent Tools Audio Transcription Upload](https://www.zero.xyz/c/agent-tools-audio-transcription-upload-d753f47f/llms.txt): $0.02/call via x402. Transcribes or translates uploaded audio files (MP3, WAV, MP4, OGG, FLAC, WebM) to text with language detection, timestamps, segments, and WebVTT output
- [Agent Tools – Manifest Vulnerability Scan (npm/PyPI)](https://www.zero.xyz/c/agent-tools-manifest-vulnerability-scan-npm-pypi-7fd99537/llms.txt): $0.012/call via x402. Batch scans a package.json or requirements.txt manifest against OSV.dev advisories, returning per-package vulnerability counts by severity, advisory IDs, and minimum fixed versions.
- [SEC XBRL Financial Facts Lookup](https://www.zero.xyz/c/sec-xbrl-financial-facts-lookup-22132dc1/llms.txt): $0.01/call via x402. Retrieves historical financial figures from SEC XBRL filings for a US-listed company by ticker or CIK, including revenue, net income, EPS, assets, liabilities, and any us-gaap tag, for annual or quarterly periods.
- [Agent Tools – Semantic Reranker (bge-reranker-base)](https://www.zero.xyz/c/agent-tools-semantic-reranker-bge-reranker-base-fe6a3e63/llms.txt): $0.005/call via x402. Reranks up to 50 documents or RAG chunks by relevance to a query using a bge-reranker-base cross-encoder, returning results sorted by a 0-1 relevance score.
- [Agent Tools – Text Similarity (BGE-M3 Cosine)](https://www.zero.xyz/c/agent-tools-text-similarity-bge-m3-cosine-84f344f7/llms.txt): $0.003/call via x402. Computes semantic similarity between two texts using BGE-M3 embeddings and returns a cosine score plus a qualitative band (near_duplicate, high, related, weak, unrelated).
- [Agent Tools – Link Health Check & Security Header Audit](https://www.zero.xyz/c/agent-tools-link-health-check-security-header-audit-64b7ee21/llms.txt): $0.002/call via x402. Checks a public URL by following redirects hop-by-hop (up to 8), detecting loops and HTTPS downgrades, and reporting final status, content type, server info, caching, and a security-header grade (HSTS, CSP, nosniff, framing, referrer, permissions).
- [Invoice Intake & Extraction](https://www.zero.xyz/c/invoice-intake-extraction-5864c749/llms.txt): $0.012/call via x402. Accepts an uploaded invoice (PDF or image), extracts structured fields, verifies vendor email and domain, and returns an accept/review/reject verdict.
- [Invoice Intake & Triage for AP Agents](https://www.zero.xyz/c/invoice-intake-triage-for-ap-agents-ac08b142/llms.txt): $0.012/call via x402. Extracts structured fields from a PDF or image invoice URL and returns an accept/review/reject verdict with vendor email risk and domain checks.
- [Agent Tools – Video Transcription (Upload)](https://www.zero.xyz/c/agent-tools-video-transcription-upload-299f4d64/llms.txt): $0.03/call via x402. Transcribes or translates uploaded video files (MP4, QuickTime, WebM) into text, returning transcript, language, duration, segments, and WebVTT captions.
- [Agent Tools – Batch Domain Intelligence Lookup](https://www.zero.xyz/c/agent-tools-batch-domain-intelligence-lookup-a88d0924/llms.txt): $0.012/call via x402. Looks up registrar, registration dates, DNS, SPF, DMARC, and HTTPS reachability for up to 10 domains in a single call at 60% lower cost than single lookups.
- [Agent Tools Batch IP Lookup](https://www.zero.xyz/c/agent-tools-batch-ip-lookup-25f498fa/llms.txt): $0.012/call via x402. Looks up network ownership, IP range, country, and reverse DNS for up to 10 IPv4 or IPv6 addresses in a single call at a 40% discount versus individual lookups.
- [Agent Tools – Video Transcription (Whisper)](https://www.zero.xyz/c/agent-tools-video-transcription-whisper-42be97ae/llms.txt): $0.03/call via x402. Transcribes or translates speech from a video file URL using Whisper large v3 turbo, returning full text, language, duration, timestamped segments, and WebVTT captions.
- [PDF to Text Extractor (Upload)](https://www.zero.xyz/c/pdf-to-text-extractor-upload-4e5be6b8/llms.txt): $0.006/call via x402. Extracts text from an uploaded PDF file (raw bytes, multipart, or base64), returning plain text or markdown with optional format selection.
- [Agent Tools Scholarly Paper Search](https://www.zero.xyz/c/agent-tools-scholarly-paper-search-db0e6a17/llms.txt): $0.006/call via x402.

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