{"id":22833,"name":"Limitguard Lead Verification","description":"Limitguard is a lead validation service for lead generation agencies, B2B marketing and sales teams: it checks the company behind each lead against official business registers (full coverage in the Netherlands and Belgium), EU VAT and sanctions lists, with website age in the company check, and returns proceed, review or block with the source on every line. Developers and AI agents can use its HTTP API, MCP server and A2A service, hosted in the EU. Free sandbox key, no wallet. The sandbox covers entity, risk and KYB checks; Lead Verify and the agent check need a live key or an x402 payment. Lead Verify $0.27 per lead and agent check $0.75 per wallet; $0.11-1.85 per call; entity and risk checks $0.88-1.05 fresh ($1.50 KYB), $0.11 cached ($0.25 KYB) when available. Lead verification for NL and BE leads, plus entity, KYB and agent wallet checks for developers and AI agents.","card_url":"https://api.limitguard.ai/.well-known/agent-card.json","endpoint":"https://api.limitguard.ai/a2a","protocol_version":"0.3.0","first_seen":"2026-10-11T02:30:41.934677+00:00","last_verified":"2026-10-11T02:30:41.934677+00:00","card":{"url":"https://api.limitguard.ai/a2a","name":"Limitguard Lead Verification","skills":[{"id":"lead_verify","name":"lead_verify","tags":["lead_verification","company_registry","sales"],"method":"POST","endpoint":"/v1/leads/verify","price_usdc":0.27,"description":"Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register (status, legal form, start date, main activity, staff, registered address) and cross-checks whatever else the lead holds: VAT number with VIES, mail server and disposable domain, IBAN country and bank (the account holder is not checked), and the company name against the OFAC, EU and UN sanctions lists. Returns a verdict, a 0-100 lead score, flags and one action per flag. An input not given is not checked and never counts against the lead."},{"id":"agent_check","name":"agent_check","tags":["wallet_screening","sanctions","agent_identity"],"method":"POST","endpoint":"/v1/agent/check","price_usdc":0.75,"description":"Agent wallet check in one call: screens an EVM wallet against the OFAC SDN digital-currency address list, reads its Base USDC and ETH balance, looks up its ERC-8004 identity registration (and, given an agent id, that agent's owner and payment wallet) and lists open ERC-8004 feedback, which is not scored. Returns one verdict and each part's status; a part that could not be read says so."},{"id":"entity_check","name":"entity_check","tags":["entity_verification","risk_scoring","reputation_tracking","wallet_verification","sanctions","kyb"],"method":"POST","endpoint":"/v1/entity/check","price_usdc":1.05,"description":"Company check: sanctions and country risk on every call; the KVK or KBO register, VAT, domain and IBAN checks depending on the identifiers supplied. Returns a 0-100 score, a cluster and a recommendation."},{"id":"risk_score","name":"risk_score","tags":["risk_scoring"],"method":"POST","endpoint":"/v1/risk/score","price_usdc":0.9,"description":"Quick risk score assessment. Faster than full entity check."},{"id":"kyb_check","name":"kyb_check","tags":["kyb_verification","sanctions","compliance_monitoring"],"method":"POST","endpoint":"/v1/kyb/check","price_usdc":1.5,"description":"Know Your Business verification with sanctions check and company registration."},{"id":"verify_wallet","name":"verify_wallet","tags":["wallet_screening","sanctions"],"method":"POST","endpoint":"/v1/mcp/verify-wallet","price_usdc":0.11,"description":"MCP tool: Screen a wallet: OFAC SDN address match, on-chain signals (contract check, native and USDC balance, transaction count, first seen on Base) and named risk rules with up to 3 advice items. On Base, also reports any ERC-8004 agent the wallet owns and its open on-chain reputation as descriptive signals, never scored. $0.11. Accepts EVM (0x...) and Solana (base58) addresses."},{"id":"wallet_sanctions","name":"wallet_sanctions","tags":["wallet_screening","sanctions","free"],"method":"POST","endpoint":"/v1/sanctions/wallet","price_usdc":0.0,"description":"Free yes/no check of a wallet address against the OFAC SDN digital-currency address list, held locally and refreshed daily: sanctioned, lists, the list date and its freshness, no programmes or entry ids. 10 per caller per UTC day, separate from the name preview, 50 per client IP across API keys. The full wallet screen is POST /v1/mcp/verify-wallet ($0.11)."}],"iconUrl":"https://limitguard.ai/icon-512.png","sandbox":{"url":"https://api.limitguard.ai/v1/keys/create","curl":"curl -s -X POST https://api.limitguard.ai/v1/keys/create -H 'Content-Type: application/json' -d '{\"email\": \"you@example.com\", \"tier\": \"sandbox\"}'","note":"Free sandbox key, no wallet. POST here with tier=sandbox to get an lg_sandbox_ key; send it as X-API-Key for free mock data on the entity, risk, KYB, reputation and sanctions routes (10 req/min). The sandbox covers entity, risk and KYB checks; Lead Verify and the agent check need a live key or an x402 payment. Or screen a name against the OFAC, EU and UN sanctions lists free first: POST https://api.limitguard.ai/v1/sanctions/preview, or a wallet address against the OFAC SDN list: POST https://api.limitguard.ai/v1/sanctions/wallet."},"version":"1.0","provider":{"url":"https://limitguard.ai","organization":"Limitguard"},"security":[{"apiKey":[]},{"bearer":[]}],"description":"Limitguard is a lead validation service for lead generation agencies, B2B marketing and sales teams: it checks the company behind each lead against official business registers (full coverage in the Netherlands and Belgium), EU VAT and sanctions lists, with website age in the company check, and returns proceed, review or block with the source on every line. Developers and AI agents can use its HTTP API, MCP server and A2A service, hosted in the EU. Free sandbox key, no wallet. The sandbox covers entity, risk and KYB checks; Lead Verify and the agent check need a live key or an x402 payment. Lead Verify $0.27 per lead and agent check $0.75 per wallet; $0.11-1.85 per call; entity and risk checks $0.88-1.05 fresh ($1.50 KYB), $0.11 cached ($0.25 KYB) when available. Lead verification for NL and BE leads, plus entity, KYB and agent wallet checks for developers and AI agents.","capabilities":{"streaming":false,"extensions":[{"uri":"https://github.com/google-agentic-commerce/a2a-x402/blob/main/spec/v0.2","required":false,"description":"Pay a priced skill per call by x402 (USDC on Base or Solana) inside A2A, with no API key: activate with the X-A2A-Extensions header, receive an input-required Task carrying x402.payment.required, then send the signed payload with the task id as x402.payment.payload."}],"pushNotifications":false,"stateTransitionHistory":false},"authentication":{"x402":{"chains":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"currency":"USDC","protocol":"x402-v2"},"api_key":{"header":"X-API-Key","prefix":"lg_live_"},"schemes":["x402","api_key"]},"protocolVersion":"0.3.0","securitySchemes":{"apiKey":{"in":"header","name":"X-API-Key","type":"apiKey","description":"Limitguard key (lg_live_...); free via POST /v1/keys/create"},"bearer":{"type":"http","scheme":"bearer","description":"The same key as Authorization: Bearer lg_live_..."}},"documentationUrl":"https://docs.limitguard.ai/api-reference/leads/lead-verify","defaultInputModes":["application/json"],"documentation_url":"https://docs.limitguard.ai/x402-protocol?utm_source=api&utm_medium=agent&utm_campaign=docs&utm_content=x402_protocol","defaultOutputModes":["application/json"],"preferredTransport":"JSONRPC"},"signature_status":"unsigned","signature_detail":"No card signature supplied","signature_key_url":null,"signature_checked_at":"2026-10-11T02:30:41.934677+00:00","domain_claimed_at":null,"domain_proof_checked_at":null,"source_name":"Global A2A Registry","source_url":"https://api.a2a-registry.org/public/agents","last_check":{"checked_at":"2026-10-11T02:30:41.934677+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"also_published_at":[],"history_urls":["https://api.limitguard.ai/.well-known/agent-card.json"],"skills":[{"skill_id":"agent_check","name":"agent_check","description":"Agent wallet check in one call: screens an EVM wallet against the OFAC SDN digital-currency address list, reads its Base USDC and ETH balance, looks up its ERC-8004 identity registration (and, given an agent id, that agent's owner and payment wallet) and lists open ERC-8004 feedback, which is not scored. Returns one verdict and each part's status; a part that could not be read says so.","tags":["wallet_screening","sanctions","agent_identity"],"quality_warning":false},{"skill_id":"entity_check","name":"entity_check","description":"Company check: sanctions and country risk on every call; the KVK or KBO register, VAT, domain and IBAN checks depending on the identifiers supplied. Returns a 0-100 score, a cluster and a recommendation.","tags":["entity_verification","risk_scoring","reputation_tracking","wallet_verification","sanctions","kyb"],"quality_warning":false},{"skill_id":"kyb_check","name":"kyb_check","description":"Know Your Business verification with sanctions check and company registration.","tags":["kyb_verification","sanctions","compliance_monitoring"],"quality_warning":false},{"skill_id":"lead_verify","name":"lead_verify","description":"Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register (status, legal form, start date, main activity, staff, registered address) and cross-checks whatever else the lead holds: VAT number with VIES, mail server and disposable domain, IBAN country and bank (the account holder is not checked), and the company name against the OFAC, EU and UN sanctions lists. Returns a verdict, a 0-100 lead score, flags and one action per flag. An input not given is not checked and never counts against the lead.","tags":["lead_verification","company_registry","sales"],"quality_warning":false},{"skill_id":"risk_score","name":"risk_score","description":"Quick risk score assessment. Faster than full entity check.","tags":["risk_scoring"],"quality_warning":false},{"skill_id":"verify_wallet","name":"verify_wallet","description":"MCP tool: Screen a wallet: OFAC SDN address match, on-chain signals (contract check, native and USDC balance, transaction count, first seen on Base) and named risk rules with up to 3 advice items. On Base, also reports any ERC-8004 agent the wallet owns and its open on-chain reputation as descriptive signals, never scored. $0.11. Accepts EVM (0x...) and Solana (base58) addresses.","tags":["wallet_screening","sanctions"],"quality_warning":false},{"skill_id":"wallet_sanctions","name":"wallet_sanctions","description":"Free yes/no check of a wallet address against the OFAC SDN digital-currency address list, held locally and refreshed daily: sanctioned, lists, the list date and its freshness, no programmes or entry ids. 10 per caller per UTC day, separate from the name preview, 50 per client IP across API keys. The full wallet screen is POST /v1/mcp/verify-wallet ($0.11).","tags":["wallet_screening","sanctions","free"],"quality_warning":false}],"quality_flags":[],"check_history":{"checks":1,"passed":1},"recent_checks":[{"card_url":"https://api.limitguard.ai/.well-known/agent-card.json","checked_at":"2026-10-11T02:30:41.934677+00:00","success":true,"http_status":200,"detail":"Agent Card validated"}],"endpoint_tls_check":null,"protocol_check":{"checked_at":"2026-10-11T02:30:41.934677+00:00","state":"a2a_response","http_status":200,"detail":"A2A task-not-found response to a read-only task lookup"},"events":[],"relationships":[],"verification":{"agent_card_url":"https://api.limitguard.ai/.well-known/agent-card.json","last_successful_card_check":"2026-10-11T02:30:41.934677+00:00","latest_card_check":{"checked_at":"2026-10-11T02:30:41.934677+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"signature_status":"unsigned","signature_checked_at":"2026-10-11T02:30:41.934677+00:00","task_endpoint_tested":true,"task_execution_tested":false,"endpoint_tls_checked_at":null,"endpoint_tls_reachable":null,"protocol_check_state":"a2a_response","protocol_checked_at":"2026-10-11T02:30:41.934677+00:00","provider_identity_verified":false,"domain_claimed_at":null,"domain_proof_checked_at":null}}