Pricing

All prices are in USDC. Pay per API call via the x402 protocol, or hold a paid-tier API key with a prepaid balance that each priced call is debited from. What it is: 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. Start here: 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.

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Tiered Pricing

Four core endpoints sell two quality tiers. Select with the X-Response-Quality header (default: fresh). enhanced was retired on these four endpoints on 2026-09-24: it ran the same sources as fresh, so X-Response-Quality: enhanced is now quoted, charged and served at the fresh price, and the 402 body’s info.note says so. POST /v1/entity/deep-check keeps its own tiers (see x402 Protocol).

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Quality Tier Definitions

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Flat-Priced Endpoints

These endpoints have a single price regardless of quality tier: POST /v1/reports/entity builds a per-entity report from one real check: registry identity, sanctions and PEP screening, domain signals, risk score, up to 3 findings, a per-source status table (a source that did not answer is shown unavailable, never clean) and an evidence hash. Send identifiers or the check_id of an earlier report’s check. Reading a stored report back with GET /v1/reports/{report_id} is free (?format=pdf for a PDF). Sandbox keys cannot create reports: they are built only from real checks.

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Deep check

POST /v1/entity/deep-check has its own two tiers and no cached tier: deep is its fresh tier (the default) and extended is its enhanced tier.

• deep (fresh): PEP and relative/close-associate matches from OpenSanctions, plus a Dutch Centraal Insolventieregister insolvency screen (NL only).
• extended (enhanced): the same, plus adverse media screening against a global news index.
• credit (Italy only, available when enabled): the same as deep, plus an Italian credit report from Openapi.com.

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MCP Tool Endpoints

The MCP tools are priced per call like the REST API. check_entity and get_risk_score cost the same as the fresh tier of the endpoint they mirror; verify_wallet, get_trust_score (your own most recent stored score for an entity) and sanctions_preview are free; get_compliance_report, sanctions_screen, check_agent_wallet and verify_lead are billed at the price of the REST endpoint they call (POST /v1/reports/entity, POST /v1/sanctions/screen, POST /v1/agent/check and POST /v1/leads/verify, in the tables above). check_agent is an unimplemented placeholder: $0.00, and hidden from the MCP tool list. The REST mirrors:

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API Key Tier Upgrades

Pay via x402 to top up an API key’s prepaid balance (POST /v1/keys/upgrade/{tier} or POST /v1/keys/topup/{usd}). This is the only case where x402 payment is required even if you already hold an API key. See Authentication for the full tier ladder. The balance does not expire or reset. API key top-ups (Indie, Starter, Growth, Pro in USD) are prepaid balances for the API; they are not the dashboard’s monthly or yearly plans.

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Free Endpoints

No payment or API key required:

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Payment Methods

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USDC Amount Reference

For x402 integration, amounts use 6 decimal places (1_000_000 = $1.00):