Pricing

All prices are in USDC. No subscription required — pay per API call via x402 protocol or use an API key for subscription billing.

Tiered Pricing

Five core endpoints support three quality tiers. Select with the X-Response-Quality header (default: fresh).

Endpoint	Cached	Fresh (default)	Enhanced
`POST /v1/entity/check`	$0.01	$0.05	$0.15
`POST /v1/risk/score`	$0.005	$0.01	$0.05
`POST /v1/reputation/score`	$0.01	$0.03	$0.10
`GET /v1/compliance/report/{id}`	$0.10	$0.50	$1.50
`POST /v1/kyb/check`	$0.25	$1.25	$2.50

Quality Tier Definitions

Cached — Cheapest

Return Redis-cached result if available. Use when freshness isn’t critical and you want the lowest cost. Set X-Response-Quality: cached.

Fresh — Default

Always run full data source fan-out. This is the default behavior when no header is sent. Set X-Response-Quality: fresh.

Enhanced — Most Comprehensive

Full fan-out plus premium data sources. Use for high-value transactions requiring maximum confidence. Set X-Response-Quality: enhanced.

Flat-Priced Endpoints

These endpoints have a single price regardless of quality tier:

Endpoint	Price
`GET /v1/reputation/history/{entity_hash}`	$0.02
`GET /v1/wallet/balance`	$0.01
`GET /v1/compliance/alerts`	$0.02
`GET /v1/compliance/readiness/{entity_id}`	$0.03

Free Endpoints

No payment or API key required:

Category	Endpoints
Health	`GET /health`
Key provisioning	`POST /v1/keys/create`
Discovery	`/.well-known/x402.json`, `/.well-known/agent.json`, `/.well-known/mcp.json`
Transparency	`/v1/self-verify`, `/v1/methodology`, `/v1/self-verify/signals`
Trust badges	`/v1/badge/{id}`, `/v1/badge/{id}.json`, `/v1/verify/{id}`
Certificates	`/v1/certificate/{hash}` (verification only)
Legal	`/v1/legal/privacy`, `/v1/legal/terms`, `/v1/legal/dpa`
LLM	`/llms.txt`, `/llms-full.txt`

Payment Methods

x402 USDC Micropayments

AI agents and anonymous callers pay per request via x402 V2 protocol. No subscription required.Networks: Base Mainnet, Base Sepolia, Solana Mainnet, Solana Devnet.Learn more →

API Key Subscription

API key holders bypass x402 — pay via subscription. Monthly quotas apply based on tier.Tiers: Free (500/mo), Starter, Pro, Enterprise.Learn more →

USDC Amount Reference

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

Price	USDC 6-decimal	x402 `amount` field
$0.005	5,000	`"5000"`
$0.01	10,000	`"10000"`
$0.02	20,000	`"20000"`
$0.03	30,000	`"30000"`
$0.05	50,000	`"50000"`
$0.10	100,000	`"100000"`
$0.15	150,000	`"150000"`
$0.25	250,000	`"250000"`
$0.50	500,000	`"500000"`
$1.25	1,250,000	`"1250000"`
$1.50	1,500,000	`"1500000"`
$2.50	2,500,000	`"2500000"`

Dynamic Pricing

Pricing can adjust based on volume. Query current prices:

# All endpoint prices with volume discount
curl "https://api.limitguard.ai/v1/sales/pricing?monthly_calls=1000"

# Specific endpoint price
curl "https://api.limitguard.ai/v1/sales/pricing/v1%2Fentity%2Fcheck?monthly_calls=1000"

Volume discounts are applied automatically based on your monthly_calls parameter.

Get Started

Core Concepts

Guides

Tiered Pricing

Quality Tier Definitions

Flat-Priced Endpoints

Free Endpoints

Payment Methods

x402 USDC Micropayments

API Key Subscription

USDC Amount Reference

Dynamic Pricing

​Tiered Pricing

​Quality Tier Definitions

​Flat-Priced Endpoints

​Free Endpoints

​Payment Methods

x402 USDC Micropayments

API Key Subscription

​USDC Amount Reference

​Dynamic Pricing

Tiered Pricing

Quality Tier Definitions

Flat-Priced Endpoints

Free Endpoints

Payment Methods

USDC Amount Reference

Dynamic Pricing