x402 Origin Due Diligence
Inspect a public HTTPS origin for advertised APIs, OpenAPI documentation and x402 discovery metadata before choosing a paid service.
$0.010001 USDC per request · Base
GET /v1/origin-due-diligence
x402 Endpoint Preflight
Inspect a public HTTPS endpoint without paying it. Read its HTTP 402 payment requirements, Base/USDC pricing and Bazaar discovery schema.
$0.015002 USDC per request · Base
GET /v1/endpoint-preflight
Base Gas Fee Quote
Return live Base gas fees and an estimated transaction cost for a caller-supplied gas limit.
$0.003002 USDC per request · Base
GET /v1/x402/base/gas-fee-quote
Base Nonce Readiness
Compare confirmed and pending Base nonces before an autonomous transaction is signed.
$0.003004 USDC per request · Base
GET /v1/x402/base/nonce-readiness
Base Stablecoin Balance
Return live Base USDC, USDT, and DAI balances with public USD reference rates.
$0.003005 USDC per request · Base
GET /v1/x402/base/stablecoin-balance
Base DEX Market Monitor
Monitor Base DEX price, liquidity, volume, and trade activity for a token.
$0.005004 USDC per request · Base
GET /v1/x402/base/dex-market-monitor
Prediction Market Snapshot
Return a public Kalshi prediction-market quote, volume, open interest, and orderbook snapshot.
$0.005010 USDC per request · Base
GET /v1/x402/prediction/market-snapshot
npm Package Preflight
Check npm package metadata, maintenance signals, deprecation, license, dependencies, and OSV vulnerabilities.
$0.015000 USDC per request · Base
GET /v1/x402/software/npm-package-preflight
URL Change Fingerprint
Fetch a public URL and return redirect, metadata, cache validators, and a SHA-256 content fingerprint.
$0.003013 USDC per request · Base
GET /v1/x402/web/url-change-fingerprint
Feed Snapshot
Normalize the latest entries from a public RSS or Atom feed with stable item fingerprints.
$0.003012 USDC per request · Base
GET /v1/x402/web/feed-snapshot
A2A Agent Card Preflight
Discover and validate a public A2A Agent Card, its skills, provider, authentication, endpoint consistency, and unsafe URLs.
$0.020000 USDC per request · Base
GET /v1/x402/agent/a2a-card-preflight
OpenAPI Spec Preflight
Validate a public OpenAPI JSON or YAML document, server URLs, authentication declarations, operation coverage, and content fingerprint.
$0.015003 USDC per request · Base
GET /v1/x402/web/openapi-preflight
Domain Trust Preflight
Inspect public DNS, DNSSEC, mail, CNAME resolution, RDAP registration age, expiration, and domain trust signals.
$0.015001 USDC per request · Base
GET /v1/x402/web/domain-trust-preflight
PyPI Package Preflight
Check PyPI package metadata, release age, yanked status, Python requirements, dependencies, license, and OSV vulnerabilities.
$0.005011 USDC per request · Base
GET /v1/x402/software/pypi-package-preflight
x402 Resource Compare
Compare two to five x402 resources or servers by price, payment metadata, schema quality, seller consistency, and budget fit.
$0.010002 USDC per request · Base
GET /v1/x402/x402/resource-compare
Agent RPC Preflight
Preflight an agent RPC or x402 chain-data request before payment: endpoint origin, method risk, chain fit, price, and budget checks.
$0.005001 USDC per request · Base
GET /v1/x402/agent/rpc-preflight
RPC Capability Probe
Score whether an RPC route likely fits agent chain-data work: logs, storage, historical reads, trace, WebSocket, and local-fork research.
$0.005009 USDC per request · Base
GET /v1/x402/chain/rpc-capability-probe
Agent Chain Data Route Plan
Plan a budget-aware route for agent chain-data tasks across RPC reads, indexed data, cached intelligence, and payment review.
$0.005000 USDC per request · Base
GET /v1/x402/agent/chain-data-route-plan
Indexed Chain Query Preflight
Preflight an indexed chain-data query before payment: schema discovery, query type, estimated rows, cost fit, and safety flags.
$0.005008 USDC per request · Base
GET /v1/x402/chain/indexed-query-preflight
Value Convert
Convert BTC, ETH, TRX, USDT, USDC values into USD or TWD for autonomous-agent budget checks.
$0.005012 USDC per request · Base
POST /x402/v1/value/convert
Send the documented JSON body. See OpenAPI for the request example.
Value BTC USD
Return a source-backed live BTC to USD quote for autonomous-agent budget checks.
$0.002000 USDC per request · Base
GET /x402/v1/value/btc-usd
Value ETH USD
Return a source-backed live ETH to USD quote for autonomous-agent budget checks.
$0.002001 USDC per request · Base
GET /x402/v1/value/eth-usd
Value TRX USD
Return a source-backed live TRX to USD quote for autonomous-agent budget checks.
$0.001000 USDC per request · Base
GET /x402/v1/value/trx-usd
Value USDT TWD
Return a source-backed live USDT to TWD composite quote for autonomous-agent budget checks.
$0.001002 USDC per request · Base
GET /x402/v1/value/usdt-twd
Value USDC TWD
Return a source-backed live USDC to TWD composite quote for autonomous-agent budget checks.
$0.001001 USDC per request · Base
GET /x402/v1/value/usdc-twd
Agent Action Preflight
Return an advisory AgentOps Guard REVIEW/BLOCK result (never ALLOW; not an authorization) before a side-effecting agent action runs.
$0.010000 USDC per request · Base
GET /v1/x402/agent/action-preflight
Mcp Server Risk Check
Assess caller-declared MCP tools, authentication and transport for side-effect risks. Advisory report only; it does not connect to or enforce permissions on the server.
$0.020001 USDC per request · Base
GET /v1/x402/agent/mcp-server-risk-check
Github Repository Health
Inspect public GitHub repository maintenance, license and release metadata. Advisory evidence only; it does not certify code security or require a GitHub account.
$0.020004 USDC per request · Base
GET /v1/x402/software/github-repository-health
Nomos Budget Check
Compare caller-supplied requested spend with supplied budget and transaction limits. Advisory policy calculation only; it does not reserve funds, enforce a wallet limit or authorize payment.
$0.020005 USDC per request · Base
POST /x402/v1/policy/budget-check
Send the documented JSON body. See OpenAPI for the request example.
Quicknode Rpc Health
Probe a public JSON-RPC endpoint using selected read-only health methods. Reports observed endpoint behavior; it does not submit transactions or require QuickNode credentials.
$0.025000 USDC per request · Base
GET /v1/x402/quicknode/rpc-health
Nomos Tool Access
Assess a caller-declared tool action and environment against a static policy. Advisory report only; it does not grant credentials, execute the tool or enforce access.
$0.030002 USDC per request · Base
POST /x402/v1/decision/tool-access
Send the documented JSON body. See OpenAPI for the request example.
Agent Buyer Identity Preflight
Compare a caller-declared agent role, purpose and purchase category with a static policy. Advisory report only; no identity verification, registry lookup or purchase authorization is performed.
$0.050000 USDC per request · Base
GET /v1/x402/agent/buyer-identity-preflight
Agent Spend Route Plan
Suggest a service route for a task and budget using catalog prices. Advisory plan only; unavailable services are identified and the plan does not buy services or enforce spending.
$0.050002 USDC per request · Base
GET /v1/x402/agent/spend-route-plan
Quicknode Wallet Execution Readiness
Combine live Base nonce, gas and stablecoin balance observations for an address. Advisory readiness evidence only; no transaction is signed or submitted.
$0.050003 USDC per request · Base
GET /v1/x402/quicknode/wallet-execution-readiness
Nomos Merchant Check
Assess caller-declared merchant trust and purchase fields against a static policy. Advisory report only; it does not verify merchant identity, manage a registry or authorize payment.
$0.050004 USDC per request · Base
POST /x402/v1/policy/merchant-check
Send the documented JSON body. See OpenAPI for the request example.
Agent Capability Security Preflight
Combine selected public agent-card, repository, package, domain, OpenAPI and unpaid x402 observations. Advisory report with explicit missing or unavailable checks; no target payment or enforcement is performed.
$0.100000 USDC per request · Base
GET /v1/x402/agent/capability-security-preflight
X402 Rpc Payment Guard
Assess a proposed RPC purchase against caller-supplied amount and budget fields. Advisory report only; signer and replay fields are recommendations, not enforced controls, signed authorization or a payment token.
$0.100001 USDC per request · Base
GET /v1/x402/agent/rpc-payment-guard