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Agent Utils (x402)

Part ofAgent Utils (x402)MCP server

Public records, email-auth DNS and OSV package vuln checks for agents: SEC, FDA, trials. x402 USDC

First seen 22 Oct 2026. Evidence as of 5 Nov 2026.

21
Tools
From an anonymous probe
1
Source listings
Each with its own history
35
Recorded changes
Since first seen

Tools

ToolDescriptionBehaviour
caller_avoidance_scoreCaller Avoidance Score (callers-avoid-0.1, outcome-only; honesty deferred): toxicity / avoid grade for a Crypto Twitter handle from public-call follower sim (post+5m, fees). Returns avoid_score 0-100, band, components with receipts (sim_mean, sim_win_rate, rug_rate, hit_2x_24h + Wilson CI), verdict (copy_buy_loses|insufficient_sample|mixed), and public post id links — not full post text. Free when n_scored<4 via GET /v0/callers/score. Not financial advice. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/callers/score.Read-only
climate_dayDaily high and low temperature for a US weather station from NWS: running provisional high/low over the station's climate day (midnight-midnight local standard time) and the official NWS Daily Climate Report (CLI) high/low once issued, flagged preliminary or final. Useful for temperature settlement, weather prediction markets and climate records. Optional temperature buckets (width/offset or explicit edges). Errors: 400 JSON {error} for invalid input. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/weather/climate-day.Read-only
clinical_trial_studyClinicalTrials.gov study lookup by NCT ID (official v2 API). Useful when an agent needs the facts of one trial. Returns titles, sponsor and collaborators, status and why stopped, key dates, phases, design, enrollment, conditions, interventions, primary outcomes, eligibility (ages, sex, criteria text), summary, site count, countries and up to 25 sites, plus results link, source URL and retrievedAt. Errors: 400 bad NCT ID, 404 not found. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/clinical-trials/study.Read-only
clinical_trials_searchClinicalTrials.gov study search (official v2 API) by condition, intervention/drug, sponsor, location, keyword, recruitment status and phase. Useful for trial finding, pipeline and competitive research. Returns total count, NCT IDs, titles, status, phases, conditions, interventions, sponsor, enrollment, key dates, has-results flag and study links, with paging token, source URL and retrievedAt. Errors: 400 invalid input. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/clinical-trials/search.Read-only
email_auth_auditEmail authentication DNS audit for a domain or email address: SPF with recursive 10-lookup count and all qualifier, DMARC policy, pct and report addresses, DKIM selector probe, MTA-STS with policy file, TLS-RPT, BIMI and MX. Useful for deliverability checks, Google/Yahoo bulk-sender readiness and spoofing risk. Returns grade A-F, score, spoofable flag, parsed records and plain-language issues. Errors: 400 invalid domain, 404 NXDOMAIN. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/dns/email-auth.Read-only
fda_adverse_eventsFDA adverse event report counts (FAERS via openFDA) for a drug by generic or brand name, optionally filtered by reaction, date range or serious reports only. Useful for drug safety signal checks and pharmacovigilance research. Returns total, serious, non-serious and death report counts and the top reported reactions, with source URL, FDA data date and retrievedAt. Reports do not prove causation. Errors: 400 invalid input. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/fda/adverse-events.Read-only
fda_drug_labelFDA drug label (package insert, SPL) lookup via openFDA by brand or generic name, NDC or set ID; prefers the original packager's latest label. Useful for indications, dosing, boxed warnings, contraindications, interactions and adverse reactions. Returns label metadata (brand, generic, manufacturer, application number, NDCs, RxCUI) and selected sections trimmed to max_chars, plus DailyMed link and retrievedAt. Errors: 400 invalid input, 404 no label. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/fda/drug-label.Read-only
fda_ndc_lookupFDA National Drug Code (NDC) directory lookup via openFDA by product or package NDC (dashed, or 10/11-digit billing format) or by drug name. Useful for pharmacy, claims and inventory data. Returns product NDC, brand and generic names, labeler, dosage form, route, active ingredients and strengths, marketing category and dates, application number, DEA schedule and packages, with DailyMed link and retrievedAt. Errors: 400 invalid input, 404 no match. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/fda/ndc.Read-only
federal_register_searchFederal Register search for US rules, proposed rules, notices and presidential documents by keyword, agency, type and publication date, or one document by number. Useful for regulatory monitoring and compliance research. Returns title, type, action, abstract, agencies, effective and comment-close dates, docket IDs, RINs, CFR parts, citation and official HTML/PDF links, with source URL and retrievedAt. Errors: 400 invalid input, 404 unknown document. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/federal-register/search.Read-only
injection_scanPrompt-injection detection for untrusted text (web pages, emails, documents, tool output) before it reaches an LLM; a guardrail for agent pipelines. Flags instruction overrides, role spoofing, secret/system-prompt exfiltration, image beacons, tool-call markup, hidden Unicode, hidden HTML and base64 payloads. Returns a 0-100 risk score, risk level and matched rules. Deterministic rules, no LLM. JSON body {text}, max 32 KB. Errors: 400 missing text, 413 too large. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: POST /v1/text/injection-scan.Read-only
osv_package_vulnsOpen-source package vulnerability check via OSV.dev for npm, PyPI, Go, crates.io, Maven, RubyGems, NuGet, Packagist and more, by ecosystem+name+version, purl, or up to 10 purls. Useful before installing or upgrading a dependency. Returns vulnerable flag, count, CVE/GHSA aliases, CVSS score and severity, fixed versions and a verified upgradeTo version. Errors: 400 invalid input, 502 OSV unavailable. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/osv/package.Read-only
recall_checkProduct and vehicle recall lookup across US agencies in one call: NHTSA (cars, by VIN or make/model/year), CPSC (consumer products, by UPC or product name) and FDA enforcement reports (food, drugs, medical devices). Useful for safety checks before buying, selling or using a product or vehicle. Returns normalized recalls (number, date, hazard/reason, remedy, link), newest first, plus anyRecall. Errors: 400 JSON {error} for invalid input. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/recalls/check.Read-only
sanctions_address_checkOFAC sanctions screening for crypto wallet addresses: exact match against every digital currency address on the U.S. Treasury OFAC SDN list (BTC, ETH, USDT, USDC, TRX, SOL, LTC, XMR and more). Useful for compliance and AML checks before paying a counterparty or an x402 payTo. Up to 20 comma-separated addresses; returns sanctioned true/false, SDN name, programs, official link and list freshness. Errors: 400 JSON {error} for invalid input. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/sanctions/address.Read-only
sec_13f_holdingsSEC 13F-HR institutional holdings for a filer by CIK or ticker (latest quarter or a given accession), parsed from the EDGAR information table. Useful for tracking what funds like Berkshire Hathaway hold. Returns period, holdings ranked by value with issuer, CUSIP, class, shares, put/call and portfolio percent, totals checked against the cover page, recent 13F filings and source URLs. Tables over 1.5 MB return 422. Errors: 400, 404 no 13F. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/sec/13f.Read-only
sec_8k_filingsSEC 8-K current reports from EDGAR: one company's 8-Ks by ticker or CIK, or the latest 8-Ks market-wide, optionally by item code (2.02 earnings, 5.02 officer changes, 1.01 agreements) or full-text phrase. Useful for event monitoring and research. Returns company, CIK, tickers, filing date, accession number, decoded items and document and index URLs, with retrievedAt. Errors: 400 invalid input, 503 SEC rate limit busy. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/sec/8k.Read-only
sec_filingsSEC EDGAR company filings and financials for a stock ticker or CIK in one call: latest 10-K, 10-Q, 8-K and other forms with dates, accession numbers, primary document and index URLs, plus optional XBRL facts (revenue, net income, shares outstanding). Useful for company research, due diligence and earnings monitoring. Errors: 400 JSON {error} for an unknown ticker; 503 while the shared SEC rate limit is busy. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/sec/filings.Read-only
solana_pre_promoPre-promo tape lookup for a Solana token when we hold a locked [-60m,0] window around its DexScreener paid-promo timestamp (specialty covered shelf, not a universal catalog). Returns raw aggregates only: net buy USD, unique buyers, largest buyer share, and the same stats vs a matched-null mean from other covered tokens (intensity-tercile leave-one-out). Uncovered token -> 404 with coverage:false and the live coverage rate — never fabricated numbers. Free coverage probe: GET /v0/solana/pre-promo-coverage. Not financial advice; no wallet-to-person attribution. PAID: $0.01 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/solana/pre-promo.Read-only
us_business_daysUS business days calculator: counts working days between two dates (inclusive), excluding weekends and observed US federal holidays per 5 U.S.C. 6103 and OPM rules. Useful for deadlines, SLAs, shipping and payment due dates. Returns the count and lists the holidays skipped. Errors: 400 JSON {error} for invalid input. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/calendar/us-business-days.Read-only
us_federal_holidaysFREE. US federal holidays (observed dates) for a year, per 5 U.S.C. 6103. Useful to test the connection before paying.Read-only
us_weatherUS weather forecast, current conditions and severe-weather alerts for a latitude/longitude from the National Weather Service (NWS) in one call. Useful when an agent needs local temperature, a forecast or active alerts for a US location. Returns the latest station observation, next 12 hourly periods, 6-period forecast and active alerts as normalized JSON. Errors: 400 JSON {error} for invalid input. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/weather/us.Read-only
x402_checkx402 endpoint validator and payment-readiness checker, useful for sellers debugging a paywall or buyers vetting an endpoint before paying. Fetches the URL unpaid, decodes the 402 challenge and grades network, USDC asset, payTo, price vs facilitator fees, EIP-712 domain, CORS and Bazaar metadata. Returns a 0-100 score and a fix list. Never pays the target. Errors: 400 JSON {error} for invalid input. PAID: $0.002 USDC per call on Base via x402 (MCP transport: retry with params._meta["x402/payment"]). Same tool over plain HTTP: GET /v1/x402/check.Read-only

Change history

  1. solana_pre_promo: tool added
  2. osv_package_vulns: tool added
  3. server instructions changed (+"checks, email-auth DNS audits, open-source package vulnerability checks (OSV.dev)." -"checks.")
  4. Description changed (registry)
  5. email_auth_audit: tool added
  6. Description changed (registry)
  7. Description changed (registry)
  8. x402_check: description changed (+"$0.002" -"$0.02")
  9. us_weather: description changed (+"$0.002" -"$0.01")
  10. us_business_days: description changed (+"$0.002" -"$0.01")
  11. sec_filings: description changed (+"$0.002" -"$0.003")
  12. sec_8k_filings: tool added
  13. sec_13f_holdings: tool added
  14. recall_check: description changed (+"$0.002" -"$0.005")
  15. federal_register_search: tool added
  16. fda_ndc_lookup: tool added
  17. fda_drug_label: tool added
  18. fda_adverse_events: tool added
  19. clinical_trials_search: tool added
  20. clinical_trial_study: tool added
  21. climate_day: description changed (+"$0.002" -"$0.01")
  22. caller_avoidance_score: description changed (+"$0.002" -"$0.02")
  23. server instructions changed (+"$0.002" -"$0.002-$0.02")
  24. x402_check: description changed (+"x402 endpoint validator and payment-readiness checker, useful" +"sellers debugging a paywall or buyers vetting" +"endpoint before paying. Fetches")
  25. us_weather: description changed (+"forecast, current conditions and severe-weather alerts" +"latitude/longitude" +"(NWS)")
  26. us_business_days: description changed (+"calculator: counts working days" +"US" +"Useful for deadlines, SLAs, shipping and payment due dates. Returns the count and lists")
  27. sec_filings: description changed (+"company filings and financials for a stock ticker or CIK" +"10-K, 10-Q, 8-K and other forms with" +"accession numbers,")
  28. sanctions_address_check: description changed (+"screening" +"digital currency address" +"USDC,")
  29. recall_check: description changed (+"Product and vehicle recall lookup across" +"agencies" +"call:")
  30. injection_scan: description changed (+"Prompt-injection detection" +"documents," +"LLM; a guardrail for agent pipelines. Flags")
  31. climate_day: description changed (+"Daily high and low temperature" +"weather station from NWS:" +"time)")
  32. caller_avoidance_score: tool added
  33. sanctions_address_check: tool added
  34. server instructions changed (+"OFAC sanctions checks for crypto addresses,")
  35. Listed (registry)
Source listings
SourceListingFirst seenLast seenVersions
Official MCP Registrydev.workers.revenue-agent-jw.agent-utils-x402-production/agent-utils22 Oct 20265 Nov 20264