com.novarithm.www/agent-hub

None of its 30 tools are described as changing anything. For 30 the reading was uncertain, so no mark is shown.

• pricingon 25 other servers

  “Free.”

  Takes no inputs.

• us_geocode

  “[PAID $0.003 USDC/call, x402, eip155:8453] Geocode one US street address with the U.S.”

  1 input, 1 required

  • addressstringrequired“One-line US address with house number, e.g.”
• uk_postcode

  “[PAID $0.002 USDC/call, x402, eip155:8453] UK postcode lookup (ONS Postcode Directory via postcodes.io): lat/lon, country, region, local authority, ward, parliamentary constituency, NHS ICB, police f…”

  1 input, 1 required

  • postcodestringrequired“UK postcode, e.g.”
• a2a_card_check

  “[PAID $0.01 USDC/call, x402, eip155:8453] Fetch and validate a peer agent's A2A Agent Card (v1.0 / v0.3): fields, skills, interfaces, auth, signature, reachability.”

  1 input, 1 required

  • urlstringrequired“Agent base URL/domain or direct card URL, e.g.”
• mcp_probe

  “[PAID $0.01 USDC/call, x402, eip155:8453] Real MCP Streamable HTTP handshake (initialize + tools/list, no tool call): reachability, protocol version, tools, schemas, latency, OAuth metadata.”

  1 input, 1 required

  • urlstringrequired“Remote MCP endpoint, e.g.”
• x402_probe

  “[PAID $0.01 USDC/call, x402, eip155:8453] 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.”

  2 inputs, 1 required

  • urlstringrequired“Paid endpoint URL”
  • methodstring“HTTP method the endpoint expects (default GET)”
• email_checkon 9 other servers

  “[PAID $0.003 USDC/call, x402, eip155:8453] Validate one email address without sending mail: syntax, MX, disposable, free webmail, role account, SPF/DMARC.”

  1 input, 1 required

  • emailstringrequired“Email address to check”
• domain_email_health

  “[PAID $0.01 USDC/call, x402, eip155:8453] Audit a domain's email authentication: MX, SPF, DMARC, DKIM (20 selectors), MTA-STS, TLS-RPT, BIMI and domain age.”

  1 input, 1 required

  • domainstringrequired“Domain, e.g.”
• evaluate_deliverable

  “[PAID $0.25 USDC/call, x402, eip155:8453] 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 …”

  6 inputs, 2 required

  • specstringrequired“Job spec: free text with measurable requirements, or JSON {"criteria":[{"type":"min_words","value":300},...]}”
  • deliverablestringrequired“Deliverable text or JSON, or a public URL to fetch”
  • job_idstring“ERC-8183 jobId (uint256, default 0)”
  • contractstring“ERC-8183 job contract address (0x…, default zero address)”
  • chain_idinteger“8453 Base mainnet (default), 84532 Base Sepolia, 1 Ethereum, 11155111 Sepolia”
  • thresholdinteger“Pass score (default 80)”
• verify_attestationon 21 other servers

  “[PAID $0.001 USDC/call, x402, eip155:8453] Verify an attestation token issued by evaluate_deliverable: recovers the EIP-712 signer, checks it is our evaluator, returns verdict, score, jobId and the b…”

  1 input, 1 required

  • tokenstringrequired“attestation.token from evaluate_deliverable”
• eu_ready_check

  “[PAID $0.12 USDC/call, x402, eip155:8453] 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 sanc…”

  7 inputs

  • urlstring“Product page URL (optional if gtin or query + seller are given)”
  • gtinstring“EAN/UPC/GTIN barcode for an exact Safety Gate match”
  • querystring“Product name / brand words when there is no page or barcode”
  • sellerstring“Seller or brand legal name to screen (default: seller found on the page)”
  • pricenumber“Price to convert when there is no page”
  • currencystring“ISO 4217 currency of price”
  • tostring“Target currency (default EUR)”
• fragrance_check

  “[PAID $0.15 USDC/call, x402, eip155:8453] Counterfeit-risk signals for a perfume listing: sales channel, price per ml vs indicative floor, fake-listing words, misspelled brand, seller domain trust, E…”

  8 inputs

  • urlstring“Listing / product page URL”
  • brandstring“Brand (when no url)”
  • productstring“Product title as listed, e.g.”
  • seller_domainstring“Seller website domain (when no url)”
  • pricenumber“Listed price”
  • currencystring“ISO 4217 currency of price”
  • size_mlnumber“Bottle size in ml (else read from the title)”
  • batch_codestring“Batch code printed on box/bottle”

Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. Read 2026-10-24.

The registry verifies a package once, when it is published, and does not re-check it. A difference below is about the listing, not a judgement of the publisher.