RSL DECLARATIONS · SIGNED EVIDENCE · HTTP X402
Rights evidence in an agent workflow
Choose the purpose, preserve evidence and keep the ingestion decision in your application. Framework-neutral examples use the same bounded buyer adapter.
Rights Gateway: select the paid operation
LIVE Base USDC pricing: Secure Preflight 0.02 fresh / 0.05 deep per prepared settled report; Ingestion Gate 0.04 + 0.02 per distinct URL fresh or 0.06 + 0.04 per URL deep (1–4 eligible public HTTPS URLs); Revalidation 0.03 fresh / 0.06 deep. Stock x402 stays fresh-only 0.02 and reviewed-only. No new subscription, prepaid, API-key billing or invoicing plan is active.
A Secure Preflight may offer a disclosed paid UNKNOWN or no-declaration diagnostic after meaningful public-source observation. An outage with no usable source observation, invalid URL or exhausted safety budget is not billable Preflight. Gateway pricing covers a bounded observation attempt after verified authorization. UNKNOWN never authorizes content use.
SUPPORTED SECURE MODE: tested official TypeScript/Node x402 2.25.0 and Python x402 2.22.0 with the AcqPath SIWX adapter on /v1/rights/preflight; unchanged signer and random nonce, recommended when payer-signed request binding is required. SUPPORTED STOCK WIRE MODE: the same official stock clients without SIWX, custom nonce, signer or buyer hook on /v1/rights/preflight/x402, fresh only, 0.02 USDC. Stock binds one request atomically at first valid use; it does not sign the POST body in advance. Zero-config compatibility outside this fixed stock endpoint, stock SIWX-only hooks, Payments MCP and generic paid proxies are not supported by this integration.
Current supported buyer integration
SUPPORTED SECURE MODE: tested official TypeScript/Node x402 2.25.0 and Python x402 2.22.0 with the AcqPath SIWX adapter on /v1/rights/preflight; unchanged signer and random nonce, recommended when payer-signed request binding is required. SUPPORTED STOCK WIRE MODE: the same official stock clients without SIWX, custom nonce, signer or buyer hook on /v1/rights/preflight/x402, fresh only, 0.02 USDC. Stock binds one request atomically at first valid use; it does not sign the POST body in advance. Zero-config compatibility outside this fixed stock endpoint, stock SIWX-only hooks, Payments MCP and generic paid proxies are not supported by this integration.
Fresh 0.02 USDC; deep 0.05 USDC on Base eip155:8453. Pin the exact recipient, USDC asset, fee and Ed25519 verification key. The adapter verifies offer, report, receipt and delivery binding. Private checkpoint files retain bearer authorizations and are not application-level encrypted; protect them with private ACLs and encrypted storage.
RAG and ingestion gates
Call before adding selected supported URLs to a corpus. Use ai-index for indexing, then separately ai-input for model context if needed. UNKNOWN or unsupported results hold ingestion.
Research agents
Evaluate selected sources before summarization or model context with ai-input. Store the verified resource, purpose and evaluation time alongside provenance. Do not quote every search result.
Crawlers
Crawl authorization is separate. Use your robots/access policy before retrieval, then the actual downstream paid purpose before ingestion. Do not send crawl as a paid quote purpose.
One reusable buyer adapter
Check live coverage → call POST /v1/rights/preflight through the AcqPath SIWX adapter → verify the prepared signed offer → preserve the unchanged official payment authorization privately → complete SIWX prebinding/authorization → receive the verified report. Use the same operation ID, input and private store after ambiguity; never create a replacement payment.
The examples expose no wallet key interface and make no payment when imported or run in read-only mode. Supply your own bounded signer only in a private buyer application.