# Novarithm Agent Services

> Paid tools for AI agents, x402 micropayments per call: Address Geocode: US street address (Census) or UK postcode (ONS) to coordinates and official areas. No match = not charged. Agent Check: verify a peer agent before you call or pay it (A2A card, MCP server health, x402 offer). Indicative score, not a certification. Email Check: is this address deliverable (syntax, MX, disposable, role) and how healthy is the domain's email authentication (SPF, DMARC, DKIM, MTA-STS, BIMI). DNS + RDAP only, no email sent, addresses not stored. Escrow Evaluator: indicative rule-based pass/partial/fail verdict on an agent deliverable with a signed EIP-712 attestation (ERC-8183 reason). Holds no funds, sends no transaction; evaluator address 0xD999A24d377086a2Fa887491f2986033Bfc3E26C. EU-Ready Pre-Purchase: EU Safety Gate alerts, GPSR responsible person on the page, seller sanctions and ECB price in one call, with a ready/review/block decision. Fragrance Authenticity Check: counterfeit-risk signals for a perfume listing (channel, price per ml, fake words, seller trust, Safety Gate, batch code). FX Rates: official ECB reference rates since 1999 plus 9 official pegs (CFA francs, KMF, CVE, AED, SAR, QAR, BHD, OMR) — 39 currencies; convert, series, latest. Information rates, not transaction rates. Pre-Purchase Check: price/stock + seller trust + product recalls in one call, with an advisory proceed/caution/stop decision. Price Availability: verified price, currency and stock from a product page's structured data (robots.txt respected; blocked pages not charged). Recall Check: is this product recalled? US CPSC + FDA and France RappelConso, by keyword or barcode. Decision aid, not an official verification. Sanctions Screen: one name against OFAC, UN, EU and UK sanctions lists (refreshed every 6 h) plus OFAC crypto addresses. Screening signal for human review, not legal or regulatory advice; names are not stored. Seller Reputation: indicative 0-100 trust score for an online store before paying (domain age, TLS, email auth, policies, phishing lists). Signal, not a guarantee. SEO Audit Shop: live technical SEO, keywords & content, internal links (crawl), local presence (NAP, LocalBusiness, Maps/reviews) and AI-answer visibility (GEO) for any public URL; full audit with weighted score and priority fixes. Rule-based, robots.txt respected. USDC Receipt Verify: proof that a USDC payment on Base matches recipient, amount and confirmations. Read-only; unknown tx = not charged. Invoke each skill through its x402 HTTP endpoint (see skill examples and /catalog) or through the MCP hub (Streamable HTTP, JSON-RPC). No account or API key: pay per call in USDC. LIVE: real USDC on Base mainnet (eip155:8453), settled on-chain via the Coinbase CDP x402 facilitator. Errors and invalid requests are never charged.

- **Domain**: `gogeta2-u35175.vm.elestio.app`
- **Provider**: Novarithm (https://novarithm.com)
- **A2A protocol version**: 0.3.0
- **Kind**: paid_api
- **Live-responds (last probe)**: True
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 100%
- **Payment protocol**: x402 · network `eip155:8453` · ≥ $0.001
- **Wallet**: `0xe414ad5c7542ce63d890526f0e2133ff8da6f22d`

## Skills
- **us_geocode (address-geocode)** — Geocode one US street address with the U.S. Census Bureau: standardised address, lat/lon, state, county, census tract, block group, ZCTA, metro area, congressio
- **uk_postcode (address-geocode)** — UK postcode lookup (ONS Postcode Directory via postcodes.io): lat/lon, country, region, local authority, ward, parliamentary constituency, NHS ICB, police force
- **a2a_card_check (agent-check)** — Fetch and validate a peer agent's A2A Agent Card (v1.0 / v0.3): fields, skills, interfaces, auth, signature, reachability. Score 0-100 + issues. Price: $0.01 US
- **mcp_probe (agent-check)** — Real MCP Streamable HTTP handshake (initialize + tools/list, no tool call): reachability, protocol version, tools, schemas, latency, OAuth metadata. Price: $0.0
- **x402_probe (agent-check)** — Pre-payment check of an x402 endpoint: one unpaid request, decodes the 402 offer (v1/v2): network, USDC or not, USD price, payTo, testnet, red flags. Price: $0.
- **email_check (email-check)** — Validate one email address without sending mail: syntax, MX, disposable, free webmail, role account, SPF/DMARC. Returns deliverable/risky/undeliverable/invalid 
- **domain_email_health (email-check)** — Audit a domain's email authentication: MX, SPF, DMARC, DKIM (20 selectors), MTA-STS, TLS-RPT, BIMI and domain age. Returns an A-F grade with concrete fixes. Pri
- **evaluate_deliverable (escrow-evaluator)** — Evaluate a deliverable (text, JSON or URL) against a job spec (free text or JSON criteria): verdict pass/partial/fail, score, checked criteria, and a signed EIP
- **verify_attestation (escrow-evaluator)** — Verify an attestation token issued by evaluate_deliverable: recovers the EIP-712 signer, checks it is our evaluator, returns verdict, score, jobId and the bytes
- **eu_ready_check (eu-ready-check)** — Before buying or selling a product in the EU: Safety Gate alerts (barcode or brand+words), GPSR manufacturer / EU responsible person on the page, seller sanctio
- **fragrance_check (fragrance-check)** — Counterfeit-risk signals for a perfume listing: sales channel, price per ml vs indicative floor, fake-listing words, misspelled brand, seller domain trust, EU S
- **fx_convert (fx-rates)** — Convert an amount between two currencies at the official ECB reference rate, today or any date since 1999, incl. CFA franc and Gulf pegs. Returns rate, amount, 
- **fx_timeseries (fx-rates)** — Daily official ECB exchange rates for a currency pair over up to 366 days, with min, max, mean and % change. Useful for invoicing, hedging checks and reporting.
- **fx_latest (fx-rates)** — All official ECB reference rates for any base currency on the latest or a given fixing date, including pegged currencies (XOF, XAF, AED, SAR). One call, full ra
- **pre_purchase_check (pre-purchase-check)** — Bundle before paying: verified price/stock (schema.org), seller trust score (RDAP, TLS, DMARC, policies, phishing lists) and recall status (CPSC, openFDA, Rappe
- **price_availability (price-availability)** — Verified price, currency, availability and seller of a product page URL from its schema.org JSON-LD / microdata / OpenGraph data. robots.txt respected; blocked 
- **recall_search (recall-check)** — Search official recall notices (CPSC, openFDA food/drug/device, RappelConso FR) by product, brand or model; filter by market and period. Price: $0.01 USDC per c
- **gtin_recall (recall-check)** — Exact recall check for one EAN/UPC/GTIN barcode (check digit validated) across RappelConso, CPSC and openFDA. Price: $0.01 USDC per call (x402). Endpoint: GET h
- **sanctions_screen (sanctions-screen)** — Screen a person or company name against OFAC SDN, UN, EU and UK sanctions lists in one call (fuzzy, aliases). Returns matches with score, list, programs, countr
- **sanctions_crypto_address (sanctions-screen)** — Check a crypto address (BTC, ETH/EVM, TRON, LTC, XMR, SOL and more) against OFAC SDN digital currency addresses. Returns listed true/false and the sanctioned en
- **seller_reputation (seller-reputation)** — Trust score 0-100 for an online store domain or URL: domain age (RDAP), HTTPS, MX/SPF/DMARC, return policy and contact, Tranco rank, phishing lists, scam patter
- **seo_technical_audit (seo-audit)** — Technical SEO audit of a URL: HTTPS and redirects, www duplicate, canonical, noindex, title/meta/H1, viewport, hreflang, Open Graph, sitemap and robots.txt, sof
- **seo_keywords_content (seo-audit)** — On-page keyword and content analysis: focus keyword (given or detected) placement in title/H1/meta/first 100 words/URL, density, top terms and phrases, headings
- **seo_internal_links (seo-audit)** — Internal linking audit: crawls up to max_pages same-site pages (robots.txt respected, 30 s cap): broken internal links, orphan pages vs XML sitemap, click depth
- **seo_local_presence (seo-audit)** — Local SEO / listings readiness from the website: phone (tel: links), postal address, e-mail, Organization/LocalBusiness JSON-LD (address, telephone, geo, hours,
- **geo_ai_visibility (seo-audit)** — GEO audit - can ChatGPT, Claude, Perplexity, Gemini cite this site? AI search/user/training bots allowed in robots.txt, text readable without JavaScript, schema
- **seo_full_audit (seo-audit)** — Full SEO + GEO audit in one call: technical, keywords and content, internal links (12-page crawl), local presence and AI visibility, weighted 0-100 score and th
- **verify_usdc_payment (usdc-receipt)** — Verify a USDC payment on Base: tx succeeded, USDC sent to the expected recipient (and from the expected sender), at least min_amount, enough confirmations. Retu
- **usdc_balance (usdc-receipt)** — Current USDC balance of an address on Base or Base Sepolia (balanceOf on the official Circle contract). Price: $0.001 USDC per call (x402). Endpoint: GET https:

## URLs
- Agent card: https://gogeta2-u35175.vm.elestio.app/agents/.well-known/agent-card.json
- Page (HTML): https://agenstry.com/agents/gogeta2-u35175.vm.elestio.app
- Documentation: https://gogeta2-u35175.vm.elestio.app/agents/llms.txt