Agent Tools

Pay-per-call utilities for AI agents over x402 (USDC on Base). No accounts or API keys.

Skills

• email check
  Email validation for signup forms, lead lists and CRM cleanup: checks syntax, MX mail servers, disposable or temporary domains, role addresses (info@, sales@) and free providers. Returns a deliverable_guess. No SMTP probe, no data stored. GET https://agents.crowdspark.me/v1/email/check. Price $0.001 USDC per call via x402.
  x402get
• email check full
  One call email risk check: everything in email_check plus sender domain health (domain age, registrar, SPF, DMARC, website reachable) and a 0-100 risk score with accept/review/reject verdict. Use for fraud screening, lead qualification and signup gating. GET https://agents.crowdspark.me/v1/email/full. Price $0.004 USDC per call via x402.
  x402get
• pdf to text
  PDF to text or markdown for RAG, summarizing, search indexing and reading reports, papers, contracts and invoices. Give a PDF URL (max 20 MB); returns text per page. format=text or markdown. Not stored. GET https://agents.crowdspark.me/v1/pdf/text. Price $0.006 USDC per call via x402.
  x402get
• pdf to text upload
  PDF to text from uploaded bytes. POST the raw PDF as the body (content-type application/pdf); multipart 'file' or JSON {"base64"} also work. Real PDF only (starts with %PDF), max 20 MB, with a text layer. Optional ?format=text|markdown. Bad files get HTTP 400 with a hint and are not charged. Sample: https://agents.crowdspark.me/samples/sample.pdf POST https://agents.crowdspark.me/v1/pdf/text/upload. Price $0.006 USDC per call via x402.
  x402post
• document extract
  One call document parsing for invoices, receipts, statements, forms and scanned pages: PDF or image URL in, full text plus extracted fields out (dates, money amounts, totals/tax/amount due, invoice or order numbers, key: value pairs, emails, phones, URLs, simple tables). Images and scans use OCR. GET https://agents.crowdspark.me/v1/document/extract. Price $0.012 USDC per call via x402.
  x402get
• document extract upload
  Document parsing from uploaded bytes. POST a raw PDF (max 20 MB, text layer) or PNG/JPEG/WebP image (max 10 MB, OCR) as the body with its content-type; multipart 'file' or JSON {"base64"} also work. Returns text plus dates, amounts, totals, IDs and tables. Bad files get HTTP 400 with a hint and are not charged. Samples: https://agents.crowdspark.me/samples/sample.pdf POST https://agents.crowdspark.me/v1/document/extract/upload. Price $0.012 USDC per call via x402.
  x402post
• domain lookup
  Domain intelligence for due diligence, phishing checks and lead research: registrar, creation and expiry dates (RDAP/WHOIS), A/AAAA/MX/NS/TXT records, SPF, DMARC and HTTPS reachability in one call. GET https://agents.crowdspark.me/v1/domain/lookup. Price $0.003 USDC per call via x402.
  x402get
• image ocr
  OCR: read all text from a screenshot, photo, receipt, sign, scanned page or chart image at a URL (PNG/JPEG, max 10 MB). Keeps line breaks. GET https://agents.crowdspark.me/v1/ocr. Price $0.005 USDC per call via x402.
  x402get
• image ocr upload
  OCR from uploaded bytes. POST the raw image as the body with its content-type (image/png, image/jpeg or image/webp); multipart 'file' or JSON {"base64"} also work. Real PNG, JPEG or WebP only, max 10 MB. Returns {text}. Bad files get HTTP 400 with a hint and are not charged. Sample: https://agents.crowdspark.me/samples/sample.png POST https://agents.crowdspark.me/v1/ocr/upload. Price $0.005 USDC per call via x402.
  x402post
• file convert
  Format conversion for data pipelines and publishing: CSV to JSON, JSON to CSV, HTML to markdown, markdown to HTML, HTML to plain text. JSON body {from, to, input}. POST https://agents.crowdspark.me/v1/convert. Price $0.003 USDC per call via x402.
  x402post
• web to markdown
  Read a web page as clean LLM-ready markdown (main content, no nav or scripts) for research, RAG and summarization. Respects robots.txt. GET https://agents.crowdspark.me/v1/web/markdown. Price $0.0015 USDC per call via x402.
  x402get
• web read full
  One call page reader: clean markdown plus page metadata (title, description, Open Graph, canonical, favicon), outbound links, word count and extracted dates, prices, emails and phones. Use for research agents, price checks and lead enrichment from public pages. GET https://agents.crowdspark.me/v1/web/read. Price $0.004 USDC per call via x402.
  x402get
• url metadata
  Link preview and unfurl data: title, description, Open Graph image, site name, canonical URL, favicon and final URL after redirects. GET https://agents.crowdspark.me/v1/web/meta. Price $0.001 USDC per call via x402.
  x402get
• timezone convert
  Timezone conversion for scheduling meetings and deadlines across IANA zones, with DST-correct UTC offsets. time=ISO local time or 'now'. GET https://agents.crowdspark.me/v1/time/convert. Price $0.001 USDC per call via x402.
  x402get
• business days
  Business day calculator for SLAs, invoice due dates, shipping and legal deadlines: counts working days between two dates, skipping weekends and national public holidays (ISO country code). GET https://agents.crowdspark.me/v1/time/business-days. Price $0.001 USDC per call via x402.
  x402get
• public holidays
  Public holiday calendar for 100+ countries by year, for scheduling, payroll and delivery planning. GET https://agents.crowdspark.me/v1/time/holidays. Price $0.001 USDC per call via x402.
  x402get
• fx rates
  Currency exchange rates (European Central Bank reference rates) for price conversion, invoicing and travel budgets. Latest or historical by date. GET https://agents.crowdspark.me/v1/fx/rates. Price $0.001 USDC per call via x402.
  x402get
• ip lookup
  IP address lookup for security triage, log analysis and fraud checks: owning network, allocation range, registry country (RDAP) and reverse DNS. GET https://agents.crowdspark.me/v1/ip/lookup. Price $0.003 USDC per call via x402.
  x402get
• token info
  Token contract inspector for Base, Ethereum, Optimism, Arbitrum and Polygon: is it a contract, ERC20/ERC721/ERC1155 detection, name, symbol, decimals, total supply (raw and formatted), owner, and upgradeable-proxy check (EIP-1967, beacon, EIP-1167 clone, legacy zeppelinos) with implementation and admin addresses. Read live from public RPC. Use before quoting, swapping, listing or paying with a token. GET https://agents.crowdspark.me/v1/chain/token. Price $0.002 USDC per call via x402.
  x402get
• gas estimate
  Gas estimate and fee quote for Base, Ethereum, Optimism, Arbitrum and Polygon: eth_estimateGas for your transaction (to, from, value, data) or a plain transfer if no 'to', current base fee, slow/standard/fast priority tips from recent blocks, max fee suggestions, L1 data fee on OP-stack chains and total cost in native coin and USD (Chainlink price). Reports reverts instead of failing. Use before signing or to budget agent transactions. GET https://agents.crowdspark.me/v1/chain/gas. Price $0.002 USDC per call via x402.
  x402get
• x402 endpoint check
  x402 readiness check for any paid API URL: probes it without paying and reports whether it returns a valid 402, where the requirements are (header or body, v1 or v2), network, asset, price in USD, payTo (with EIP-55 checksum check), EIP-712 token domain, timeout, resource URL and Bazaar discovery. Returns ready or needs_fixes with a 0-100 score and a list of specific issues. Use before listing an endpoint or paying it. Never pays. GET https://agents.crowdspark.me/v1/x402/check. Price $0.005 USDC per call via x402.
  x402get
• x402 seller audit
  Will my paid API get listed? Audits any x402 endpoint URL: runs the readiness check, flags the 500 character description limit, then checks the Coinbase Bazaar listing, OpenAPI x-payment-info, 402 Index entry, favicon, llms.txt and /.well-known/x402. Returns a 0-100 score, verdict and an ordered fix list. Never sends a payment. GET https://agents.crowdspark.me/v1/x402/audit. Price $0.01 USDC per call via x402.
  x402get
• email check batch
  Batch email validation for list cleaning: up to 10 addresses per call, 40% cheaper than 10 single calls. JSON body {emails:[...]}. Each item gets syntax, MX, disposable, role and free-provider checks and a deliverable_guess. Bad items return per-item errors, not a failed call. POST https://agents.crowdspark.me/v1/email/check/batch. Price $0.006 USDC per call via x402.
  x402post
• ip lookup batch
  Batch IP lookup for log analysis and fraud review: up to 10 IPv4 or IPv6 addresses per call, 40% cheaper than singles. JSON body {ips:[...]}. Each item returns the owning network, range, country (RDAP) and reverse DNS. Bad items return per-item errors. POST https://agents.crowdspark.me/v1/ip/lookup/batch. Price $0.012 USDC per call via x402.
  x402post
• domain lookup batch
  Batch domain intelligence for due diligence and lead lists: up to 10 domains per call, 60% cheaper than singles. JSON body {domains:[...]}. Each item returns registrar, dates, DNS, SPF, DMARC and HTTPS reachability. Bad items return per-item errors. POST https://agents.crowdspark.me/v1/domain/lookup/batch. Price $0.012 USDC per call via x402.
  x402post
• url dossier
  One call dossier on a web page and its host: clean markdown, page metadata, outbound links and extracted fields, plus domain intelligence (registrar, age, DNS, SPF, DMARC) and IP network lookup for the host, with a short trust summary. Replaces three calls. GET https://agents.crowdspark.me/v1/bundle/url-dossier. Price $0.007 USDC per call via x402.
  x402get
• invoice intake
  Invoice intake for AP agents: PDF or image URL in, one decision-ready JSON out. Extracts text, number, total, dates and vendor contact, then runs an email risk check and domain lookup on the vendor and returns accept, review or reject with reasons. Heuristic triage, not bank verification. GET https://agents.crowdspark.me/v1/bundle/invoice-intake. Price $0.012 USDC per call via x402.
  x402get
• invoice intake upload
  Invoice intake from uploaded bytes. POST a raw PDF (max 20 MB, text layer) or PNG/JPEG/WebP (max 10 MB) with its content-type; multipart 'file' or JSON {"base64"} also work. Returns extracted fields, vendor email and domain checks and an accept, review or reject verdict. Bad files get HTTP 400 and are not charged. POST https://agents.crowdspark.me/v1/bundle/invoice-intake/upload. Price $0.012 USDC per call via x402.
  x402post
• token preflight
  Token preflight for agents about to swap, list or pay with a token on Base, Ethereum, Optimism, Arbitrum or Polygon: contract and standard check, name, symbol, supply, proxy and owner flags, a 0-100 structural risk score with reasons, plus a simulated ERC20 transfer gas cost in USD. Not a honeypot audit. GET https://agents.crowdspark.me/v1/bundle/token-preflight. Price $0.004 USDC per call via x402.
  x402get
• ens resolve
  ENS lookup: name to address (with avatar) or address to primary name, with forward verification. Read live from Ethereum mainnet. Use name=vitalik.eth or address=0x... Use before sending funds to a human readable name. GET https://agents.crowdspark.me/v1/chain/ens. Price $0.002 USDC per call via x402.
  x402get
• wallet balance
  Wallet balance on Base, Ethereum, Optimism, Arbitrum or Polygon: native coin balance with USD value (Chainlink) plus up to 10 ERC20 token balances with symbol and decimals. Pass tokens=0xA,0xB. Read live from public RPC. Use before funding, swapping or paying from a wallet. GET https://agents.crowdspark.me/v1/chain/balance. Price $0.002 USDC per call via x402.
  x402get
• tx decode
  Transaction decoder for Base, Ethereum, Optimism, Arbitrum and Polygon: status, from, to, value, gas used, fee in native coin and USD, method name and arguments for common ERC20 calls, ERC20 transfers with symbols and amounts, and approvals. Use to confirm a payment landed or explain what a transaction did. GET https://agents.crowdspark.me/v1/chain/tx. Price $0.003 USDC per call via x402.
  x402get
• business day add
  Due-date calculator: add or subtract N business days from a date, skipping weekends and nationwide public holidays for a country (ISO code). Returns the result date and weekday, which holidays were skipped and whether the start day is a working day. For SLAs, invoice terms, shipping and legal deadlines. GET https://agents.crowdspark.me/v1/time/add-business-days. Price $0.001 USDC per call via x402.
  x402get
• fx convert
  Currency converter for invoices, quotes and budgets: convert an amount from one currency into up to 10 others using European Central Bank rates (latest or a past date). Returns rounded amounts, rate, inverse rate and the 7 day change in percent for each target. GET https://agents.crowdspark.me/v1/fx/convert. Price $0.002 USDC per call via x402.
  x402get
• url check
  Link health check: follows redirects hop by hop (max 8) with status and timing, flags loops and https downgrades, then reports final status, content type and size, server, caching and a security-header grade (HSTS, CSP, nosniff, frame, referrer, permissions). Public hosts only. GET https://agents.crowdspark.me/v1/web/check. Price $0.002 USDC per call via x402.
  x402get
• package advisories
  Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Check a package before installing it: known vulnerabilities for one npm, PyPI, cargo, Go or Maven package version (OSV.dev), fixed-in version, latest version and release date, licence, deprecated flag, and a safe, caution or avoid verdict with reasons. Version defaults to latest. GET https://agents.crowdspark.me/v1/dev/package-advisories. Price $0.005 USDC per call via x402.
  x402get
• prompt injection check
  Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Rule-based prompt-injection screen for untrusted text such as scraped web pages, emails and tool output. JSON body {text} (max 50,000 chars). Detects instruction-override phrasing, role-spoofing tags, data-leak links and hidden Unicode in 6 languages. Returns verdict safe, suspicious or malicious, a 0-100 score and matched spans. Text is not stored. POST https://agents.crowdspark.me/v1/text/injection-check. Price $0.005 USDC per call via x402.
  x402post
• pii redact
  Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Scrub text before it goes to a model or a log: JSON body {text, mask} (max 100,000 chars). Finds emails, phones, SSNs, cards (Luhn), IBANs, IPs, MAC addresses, API keys, JWTs, private keys, wallet addresses. mask is label, hash or star. Returns redacted text and counts. Not stored. POST https://agents.crowdspark.me/v1/text/pii-redact. Price $0.003 USDC per call via x402.
  x402post
• federal register search
  Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Search the US Federal Register: final rules, proposed rules, notices and presidential documents with title, agencies, publication date, effective date, comment deadline, docket IDs, abstract and links. Filter by keyword, type, agency slug and date range. Public domain data, no legal advice. GET https://agents.crowdspark.me/v1/gov/federal-register. Price $0.005 USDC per call via x402.
  x402get
• sec filings
  Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Recent SEC EDGAR filings for a US-listed company by ticker or CIK: form type, filing and report dates, 8-K item codes with plain labels, accession number and direct document links. Filter by form (8-K, 10-K, 10-Q, 4, 13F-HR, comma list), since date and limit. Raw public data, not investment advice. GET https://agents.crowdspark.me/v1/finance/sec-filings. Price $0.005 USDC per call via x402.
  x402get
• sec facts
  Financial figures over time from SEC XBRL filings for a US-listed company by ticker or CIK: revenue, net income, EPS, assets, liabilities, cash, operating income, equity, shares, or any us-gaap tag. Annual or quarterly series with period dates, fiscal year, form, filing date and accession number, latest filing per period. Pairs with sec_filings. Raw public data, not investment advice. GET https://agents.crowdspark.me/v1/finance/sec-facts. Price $0.01 USDC per call via x402.
  x402get
• manifest scan
  Batch vulnerability scan of a whole package.json (npm) or requirements.txt (PyPI): JSON body {manifest}. Checks up to 50 dependencies against OSV.dev known advisories and returns, per package, the version checked, vulnerability count by severity, advisory IDs and the minimum fixed version, with vulnerable packages listed first. Cheaper batch form of package_advisories. POST https://agents.crowdspark.me/v1/dev/manifest-scan. Price $0.012 USDC per call via x402.
  x402post
• clinical trials search
  Search ClinicalTrials.gov for health-research agents: keyword, condition or intervention in; trials out with NCT ID, title, status, phases, study type, enrollment, conditions, interventions, lead sponsor, start and completion dates, results flag, site count and link. Filter by status (e.g. RECRUITING), phase and location. Registry data only, not medical advice. GET https://agents.crowdspark.me/v1/gov/clinical-trials. Price $0.005 USDC per call via x402.
  x402get
• macro indicators
  Macro indicators by country and year from the World Bank: GDP, GDP growth, GDP per capita, inflation, unemployment, population, debt to GDP, real interest rate, exports, imports, current account, FDI, or any World Bank indicator code. Up to 10 countries per call (ISO2 or ISO3, joined with ;), newest year first. Pairs with fx_rates. GET https://agents.crowdspark.me/v1/data/macro. Price $0.003 USDC per call via x402.
  x402get
• web screenshot
  Screenshot any public web page with a real headless Chrome: url in, PNG or JPEG out as base64 in JSON, plus final URL after redirects, HTTP status, page title and size. Set viewport width and height, or full_page=true for the whole page. For agents that need to see a page, check a layout or keep visual proof. GET https://agents.crowdspark.me/v1/web/screenshot. Price $0.015 USDC per call via x402.
  x402get
• papers search
  Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Scholarly paper search for research agents: keywords or a DOI in, matching papers out with title, authors, year, venue, DOI, citation count, open access PDF or page link, retraction flag and abstract. Filter by year range and open access, sort by relevance, citations or newest. Source OpenAlex, Crossref fallback. GET https://agents.crowdspark.me/v1/research/papers. Price $0.006 USDC per call via x402.
  x402get
• dependency audit
  Audit a whole project before an agent installs or runs it: JSON body {manifest, type, readme}. manifest is package.json (npm) or requirements.txt (PyPI) text. Checks up to 25 dependencies against OSV.dev advisories, deprecation and latest versions, and screens the optional README for prompt injection. Returns one safe, caution or avoid verdict plus a ranked fix list (upgrade to version X). POST https://agents.crowdspark.me/v1/bundle/dependency-audit. Price $0.05 USDC per call via x402.
  x402post
• text similarity
  Semantic similarity of two texts for RAG, dedupe and matching: JSON body {a, b}, each up to 8,000 chars, any language. Returns a cosine score from bge-m3 embeddings plus a rough band (near_duplicate, high, related, weak, unrelated). Texts are not stored. POST https://agents.crowdspark.me/v1/text/similarity. Price $0.003 USDC per call via x402.
  x402post
• text rerank
  Rerank search results or RAG chunks by relevance to a query: JSON body {query, documents, top_k}. Up to 50 documents (strings or {id, text}), each up to 2,000 chars. Returns the documents sorted by a 0-1 relevance score from the bge-reranker-base cross-encoder. Texts are not stored. POST https://agents.crowdspark.me/v1/text/rerank. Price $0.005 USDC per call via x402.
  x402post

How to call

https://agents.crowdspark.me

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