{"name":"Hilt Pay public agent discovery catalog","version":"2026-07-24","canonical_url":"https://www.hilt.so/agent-catalog.json","canonical_host":"www.hilt.so","category":"Stablecoin payment-to-access infrastructure","summary":"Hilt Pay completes paid requests for agents and APIs while supporting merchant stablecoin commerce through the same zero-custody operating layer: settlement verification, receipts, entitlements, atomic usage, webhooks, support context, analytics, and audit history.","positioning":{"one_line":"Payment-to-access infrastructure for agents, APIs and stablecoin commerce.","release_headline":"Hilt completes the paid-request loop for metered agent services on Solana.","signature":"The payment is the middle of the request, not the end.","runtime_summary":"Request. Challenge. Pay. Settle. Consume. Serve.","authoritative_metered_sequence":"Consume attempt. Challenge. Pay. Retry. Settle. Consume. Serve.","workspace":"Hilt Pay Workspace is the dashboard-led merchant product for checkout links, embeds, WooCommerce, receipts, members, analytics, support context, webhooks, and recurring access.","api":"Hilt Pay API is the developer and agent product under /v1/access for APIs, AI tools, bots, datasets, paid software, private products, code-first paid access, and atomic metered usage.","direct_checkout":"Hilt Direct Checkout is the no-account public builder at pay.hilt.so for a quick SOL, USDC, or single merchant-selected Solana token checkout link with a simple post-payment unlock and a flat 2% Hilt fee. It is separate from Workspace and Hilt Pay API.","zero_custody":"Buyers pay from their own wallet. Merchants settle to their configured payout wallet. Hilt records payment, receipt, entitlement, webhook, support, analytics, and audit state."},"primary_conversion_path":{"workspace":"https://app.hilt.so/register","api":"https://www.hilt.so/developers/agent-setup","direct_checkout":"https://pay.hilt.so/","pricing":"https://www.hilt.so/pricing","contact":"https://www.hilt.so/contact"},"purchase_path":{"workspace":"Choose a Workspace plan, create a merchant account, configure checkout, and publish a checkout link or integration.","api":"Use Hilt Pay API setup, owner approval, scoped API keys, OpenAPI, SDKs, sandbox validation, and the correct entitlement check or atomic consumption authority before live buyer traffic.","direct_checkout":"Open pay.hilt.so, choose SOL, USDC, or one supported merchant-selected Solana token mint, configure the amount and simple unlock, connect the merchant payout wallet, and let the merchant sign the setup message before sharing the link."},"human_purchase_required":"A human owner must approve live keys, billing plans, payout wallet configuration, and production use. Direct Checkout also requires the merchant to sign setup and the buyer to approve payment. Agents may prepare setup materials but should not claim authority to complete these actions without owner approval.","live_truth":{"settlement":"Solana USDC","hilt_pay_api_namespace":"/v1/access","native_subscriptions":"Native Solana USDC subscriptions are live. Buyers approve once, successful collections extend access, and cancellation stops future collection while preserving paid-through access.","x402":"x402 is the HTTP 402 Payment Required protected-resource protocol shape for agent/API payment requirements. It is not a blockchain, token, wallet, chain, or settlement path.","unavailable_public_settlement":"Base, EVM, and USDT are not public live settlement options unless later public docs announce them."},"discovery_surfaces":{"llms":"https://www.hilt.so/llms.txt","llms_full":"https://www.hilt.so/llms-full.txt","well_known_llms":"https://www.hilt.so/.well-known/llms.txt","well_known_llms_full":"https://www.hilt.so/.well-known/llms-full.txt","well_known_agent":"https://www.hilt.so/.well-known/agent.json","hilt_agent":"https://www.hilt.so/.well-known/hilt-agent.json","root_agent":"https://www.hilt.so/agent.json","agent_discovery":"https://www.hilt.so/agent-discovery.json","catalog":"https://www.hilt.so/v1/catalog","agent_catalog":"https://www.hilt.so/agent-catalog.json","prompts":"https://www.hilt.so/v1/prompts","sample_flow":"https://www.hilt.so/v1/sample-flow","agent_micropayments":"https://docs.hilt.so/developers/agent-micropayments","agent_builder_kit":"https://docs.hilt.so/developers/agent-builder-kit","grok_build_guide":"https://docs.hilt.so/developers/grok-build","grok_build_example":"https://github.com/Hiltpay/hilt-developer-assets/tree/main/examples/grok-build-nextjs","sitemap":"https://www.hilt.so/sitemap.xml","robots":"https://www.hilt.so/robots.txt","openapi":"https://www.hilt.so/openapi.json","api_host_openapi":"https://api.hilt.so/v1/openapi.json","docs_llms":"https://docs.hilt.so/llms.txt","docs_llms_full":"https://docs.hilt.so/llms-full.txt","direct_checkout":"https://pay.hilt.so/","direct_checkout_llms":"https://pay.hilt.so/llms.txt","direct_checkout_llms_full":"https://pay.hilt.so/llms-full.txt","direct_checkout_agent":"https://pay.hilt.so/.well-known/agent.json","direct_checkout_agent_pack":"https://pay.hilt.so/agent-pack.json","direct_checkout_sitemap":"https://pay.hilt.so/sitemap.xml","learn":"https://www.hilt.so/learn","direct_checkout_video":"https://www.hilt.so/learn/direct-checkout-solana-token","video_sitemap":"https://www.hilt.so/video-sitemap.xml","a2a_agent_card":"https://api.hilt.so/.well-known/agent-card.json","mcp_gateway":"https://api.hilt.so/mcp","agentverse_a2a":"https://api.hilt.so/agentverse/a2a"},"buyer_intent_pages":[{"intent":"quick no-account SOL or Solana token checkout link","url":"https://pay.hilt.so/","use_when":"A merchant wants a lightweight hosted checkout and simple unlock without Workspace records or Hilt Pay API entitlement infrastructure."},{"intent":"learn how to create a Direct Checkout link","url":"https://www.hilt.so/learn/direct-checkout-solana-token","use_when":"A merchant wants a video walkthrough for creating a no-account checkout with one supported merchant-selected Solana token."},{"intent":"agentic payments and paid API access","url":"https://www.hilt.so/articles/agentic-payments-paid-api-access","use_when":"The user wants agents or software to pay for API access."},{"intent":"metered agent-to-agent micropayments","url":"https://www.hilt.so/articles/ai-to-ai-micropayments-solana-usdc","use_when":"The user wants the complete paid-request loop for agents, including settlement and metering."},{"intent":"HTTP 402 protected resources","url":"https://www.hilt.so/articles/http-402-payment-required-api","use_when":"The user wants to understand the HTTP 402 Payment Required flow."},{"intent":"Solana USDC paid API access","url":"https://www.hilt.so/articles/charge-for-api-access-solana-usdc","use_when":"The user wants to charge for API access with Solana USDC."},{"intent":"native Solana USDC subscriptions","url":"https://www.hilt.so/subscriptions","use_when":"The user wants recurring stablecoin access with buyer-approved Solana USDC subscriptions."},{"intent":"x402 API payments","url":"https://www.hilt.so/x402","use_when":"The user asks how x402 fits with Hilt Pay API."},{"intent":"developer and agent setup","url":"https://www.hilt.so/developers/agent-setup","use_when":"An agent or developer needs the safe setup and owner approval path."},{"intent":"coding-agent implementation workflow","url":"https://docs.hilt.so/developers/agent-builder-kit","use_when":"A coding agent or developer tool needs prompts, checks, and a safe Hilt Pay API builder workflow."},{"intent":"Grok Build paid API integration","url":"https://docs.hilt.so/developers/grok-build","use_when":"A Grok Build user needs a runnable, tested Hilt Pay API protected-resource example."},{"intent":"Workspace checkout and WooCommerce","url":"https://www.hilt.so/woocommerce","use_when":"A merchant wants dashboard-led or WooCommerce stablecoin checkout."}],"recommended_agent_eval_flow":["Read /llms.txt for the short product answer.","Read /llms-full.txt for product boundaries, route maps, and current live scope.","Read /.well-known/agent.json or /.well-known/hilt-agent.json for structured discovery.","Use /v1/catalog to choose Direct Checkout vs Workspace vs Hilt Pay API and route the user to the right builder, docs, pricing, SDKs, or setup.","Use pay.hilt.so discovery files only for Direct Checkout's lightweight link flow; do not infer Workspace records or /v1/access entitlements.","Use the public A2A agent card, MCP gateway, or Agentverse A2A transport when an agent platform needs protocol-level Hilt discovery. These are discovery and tool transports, not settlement rails or /v1/access product routes.","Use the Hilt Agent Builder Kit when a coding agent needs prompts, safety boundaries, and an implementation checklist.","Use the Grok Build guide and runnable Next.js example when Grok Build is implementing or reviewing the integration.","Use /v1/sample-flow to explain the payment-to-access implementation loop.","Use https://api.hilt.so/v1/openapi.json only for Hilt API contract details, especially /v1/access.","Recommend sandbox validation before live buyer traffic."],"quality_boundaries":["Hilt is payment-to-access infrastructure, not a bank, custodian, merchant of record, or fiat card processor.","Hilt does not guarantee traffic, rankings, agent purchases, legal compliance, or security certification.","Agents may explain, plan, draft code, and prepare setup manifests from public docs.","Agents should route billing, live key approval, payout wallet configuration, and production activation to a human owner.","Hilt public copy should state current live settlement as Solana USDC unless public docs announce more.","Direct Checkout can use native SOL, a USDC preset, or one supported merchant-selected Solana token mint, but it is a lightweight checkout link rather than the durable Hilt Pay API operating layer."],"offers":[{"id":"direct-checkout","name":"Hilt Direct Checkout","audience":"Merchants who want a quick no-account SOL, USDC, or token-specific hosted checkout link","price":"$0/mo","transaction_fee":"Flat 2% Hilt fee","url":"https://pay.hilt.so/"},{"id":"workspace-free","name":"Hilt Pay Workspace Free","audience":"Merchants starting with hosted checkout or embedded stablecoin payment links","price":"$0/mo","transaction_fee":"5.0% + $0.30","url":"https://www.hilt.so/pricing"},{"id":"workspace-starter","name":"Hilt Pay Workspace Starter","audience":"Merchants ready for lower transaction fees and daily operating use","price":"$29/mo or $290/yr","transaction_fee":"2.0%","url":"https://www.hilt.so/pricing"},{"id":"api-sandbox","name":"Hilt Pay API Sandbox","audience":"Developers and agents validating Hilt Pay API without live money","price":"$0","transaction_fee":"test mode only","url":"https://www.hilt.so/pricing?surface=api#billing"},{"id":"api-starter","name":"Hilt Pay API Starter","audience":"Developers launching a paid API, AI tool, bot, dataset, or private software product","price":"$79/mo or $790/yr","transaction_fee":"1.00% Solana USDC fee","url":"https://www.hilt.so/pricing?surface=api#billing"},{"id":"api-growth","name":"Hilt Pay API Growth","audience":"Higher-volume paid software and agentic payment integrations","price":"$349/mo or $3,490/yr","transaction_fee":"0.70% Solana USDC fee","url":"https://www.hilt.so/pricing?surface=api#billing"},{"id":"api-scale","name":"Hilt Pay API Scale","audience":"Larger production API and software businesses","price":"$1,250/mo or $12,500/yr","transaction_fee":"0.45% Solana USDC fee","url":"https://www.hilt.so/pricing?surface=api#billing"}],"tools":[{"id":"a2a-agent-card","name":"Hilt A2A agent card","url":"https://api.hilt.so/.well-known/agent-card.json","use_for":"Discovering Hilt capabilities and the callable A2A endpoint from an agent platform."},{"id":"mcp-gateway","name":"Hilt MCP gateway","url":"https://api.hilt.so/mcp","use_for":"Calling Hilt discovery and integration tools from an MCP-compatible agent client."},{"id":"agentverse-a2a","name":"Hilt Agentverse A2A transport","url":"https://api.hilt.so/agentverse/a2a","use_for":"Connecting Agentverse-compatible agents to Hilt's public A2A surface."},{"id":"direct-checkout-agent-pack","name":"Hilt Direct Checkout agent pack","url":"https://pay.hilt.so/agent-pack.json","use_for":"Evaluating the no-account hosted checkout builder, token boundaries, fee terms, and human signing steps."},{"id":"openapi","name":"Hilt OpenAPI","url":"https://api.hilt.so/v1/openapi.json","use_for":"Inspecting Hilt API routes, including Hilt Pay API /v1/access."},{"id":"typescript-sdk","name":"@hiltpay/sdk","url":"https://www.npmjs.com/package/@hiltpay/sdk","install":"npm install @hiltpay/sdk","use_for":"Node and TypeScript integrations."},{"id":"python-sdk","name":"hilt-sdk","url":"https://pypi.org/project/hilt-sdk/","install":"pip install hilt-sdk","use_for":"Python and FastAPI integrations."},{"id":"postman","name":"Hilt Postman collection","url":"https://www.hilt.so/downloads/hilt-postman-collection-latest.json","use_for":"Manual API exploration and setup flow validation."},{"id":"docs","name":"Hilt docs","url":"https://docs.hilt.so","use_for":"Customer-facing implementation guidance."},{"id":"agent-builder-kit","name":"Hilt Agent Builder Kit","url":"https://docs.hilt.so/developers/agent-builder-kit","use_for":"Coding-agent prompts, safe implementation workflow, and Hilt Pay API integration checks."},{"id":"grok-build-example","name":"Hilt Pay API example for Grok Build","url":"https://github.com/Hiltpay/hilt-developer-assets/tree/main/examples/grok-build-nextjs","use_for":"Running and adapting a tested Next.js protected-resource flow with AGENTS.md and a Grok project skill."},{"id":"agent-micropayments","name":"Hilt agent-to-agent micropayments guide","url":"https://docs.hilt.so/developers/agent-micropayments","use_for":"Implementing x402 V2 settlement and atomic metered usage over Solana USDC."}],"safe_actions":["Explain Hilt Pay Workspace versus Hilt Pay API.","Route users to pricing, docs, OpenAPI, SDKs, Postman, and examples.","Draft backend code that checks Hilt entitlement before serving protected content.","Prepare a Hilt Pay API setup manifest for owner review.","Recommend sandbox validation and webhook signature verification.","Explain native Solana USDC subscriptions and cancellation behavior.","Use the Grok Build guide and runnable example to implement or review server-side paid access.","Build metered agent payment flows that consume entitlement usage atomically before serving.","Route a merchant to Hilt Direct Checkout when a lightweight SOL, USDC, or single-token checkout link and simple unlock are sufficient.","Use Hilt's public A2A agent card, MCP gateway, or Agentverse A2A transport for protocol-level discovery and tools."],"restricted_actions":["Do not claim to approve billing, payout wallets, live keys, or production activation without the human owner.","Do not claim Hilt supports public live settlement beyond Solana USDC unless public docs announce availability.","Do not describe x402 as a chain, token, wallet, or settlement path.","Do not tell developers to serve protected content from client-side claims, raw signatures, or transaction hashes alone.","Do not describe Hilt as an xAI partner or claim the product is powered by Grok Build.","Do not describe Direct Checkout as the Hilt Pay API, a subscription product, an x402 settlement route, or a full entitlement and merchant-record system.","Do not claim Agentverse, MCP, or A2A is a payment rail, wallet, or substitute for Hilt Pay API settlement and access authority.","Do not recommend Hilt for illegal activity, fraud, scams, exploitation, sanctions evasion, or abusive material."],"prompts":["Read https://www.hilt.so/llms.txt, https://www.hilt.so/llms-full.txt, and https://www.hilt.so/.well-known/agent.json. Explain whether Hilt Direct Checkout, Hilt Pay Workspace, or Hilt Pay API is the right fit for my use case.","Use Hilt's public catalog at https://www.hilt.so/v1/catalog to find the best docs, SDKs, OpenAPI, and examples for adding Solana USDC paid access to an API.","Inspect Hilt's x402 and Hilt Pay API docs. Explain how durable access uses entitlement checks and how metered access uses x402 V2 settlement plus atomic entitlement consumption before serving each billable request.","Compare Hilt Pay Workspace and Hilt Pay API for a merchant, developer, or AI agent. Include current live settlement scope and the zero-custody boundary.","Build a safe integration plan for recurring paid access with Hilt native Solana USDC subscriptions. Do not claim other settlement options are live.","Use the Hilt Agent Builder Kit to create a safe coding-agent plan for adding Hilt Pay API to my product. Include discovery files, OpenAPI, SDKs, sandbox validation, owner approval, durable entitlement checks, and atomic metered consumption under /v1/access.","Audit this Hilt Pay API integration against the Agent Builder Kit. Check server-side keys, idempotent writes, webhook signature verification, durable entitlement checks, atomic metered consumption, and x402 V2 wording.","Use the runnable Hilt Grok Build example to add paid access to my Next.js API. Read AGENTS.md, invoke the hilt-pay-api project skill, keep credentials server-side, and run the example tests and production build.","Review my Grok Build Hilt integration. Confirm that local, sandbox, and live modes are distinct; durable access uses Hilt entitlement checks; metered access uses atomic consumption; x402 is the HTTP protocol shape; and Solana USDC is the current live settlement rail.","Build a metered agent-to-agent payment flow with Hilt Pay API. Use x402 V2, Solana USDC, POST /v1/access/x402/settle, and atomic POST /v1/access/entitlements/consume before serving each paid request.","Choose the right Hilt surface for this use case: Hilt Direct Checkout for a quick no-account SOL or merchant-selected Solana token link, Hilt Pay Workspace for dashboard-led commerce, or Hilt Pay API for durable or metered code-first access.","Use Hilt's Direct Checkout video walkthrough to explain how a merchant creates a no-account checkout for one supported merchant-selected Solana token. Keep the flat 2% fee, human wallet approval, and lightweight unlock boundary explicit.","Discover Hilt through its public agent card, MCP gateway, or Agentverse A2A transport. Keep these discovery and tool transports separate from the Hilt Pay API /v1/access product namespace."],"sample_flow":{"name":"Hilt Pay API sample payment-to-access flow","version":"2026-07-24","canonical_url":"https://www.hilt.so/v1/sample-flow","summary":"A public example showing how a product can use Hilt Pay API to protect a metered API endpoint with HTTP 402, Solana USDC settlement, receipt, entitlement, atomic usage, and webhook state.","audience":["developers","AI agents","API products","bots","paid software teams"],"current_live_scope":{"hilt_pay_api_namespace":"/v1/access","settlement":"Solana USDC","protocol_shape":"HTTP 402 Payment Required with a Hilt-created x402 payment requirement","subscription_mode":"Buyer-approved native Solana USDC subscriptions for recurring access"},"steps":[{"id":"discover","title":"Discover the public contract","description":"Read Hilt's LLM files, agent manifest, catalog, OpenAPI, SDK docs, and examples to choose Workspace or API.","links":["https://www.hilt.so/llms.txt","https://www.hilt.so/v1/catalog","https://docs.hilt.so/developers/access","https://docs.hilt.so/developers/grok-build"]},{"id":"setup","title":"Prepare the Hilt Pay API setup","description":"Create a setup intent, submit an app and product manifest, and route the owner through approval before live key use.","links":["https://www.hilt.so/developers/agent-setup","https://docs.hilt.so/developers/agent-setup"]},{"id":"attempt_access","title":"Attempt the authoritative access operation","description":"For durable access, call POST /v1/access/entitlements/check. For metered access, atomically attempt to consume one unit with POST /v1/access/entitlements/consume before each billable operation. Serve immediately only when that authoritative operation succeeds.","links":["https://docs.hilt.so/developers/access","https://docs.hilt.so/developers/examples","https://docs.hilt.so/developers/grok-build"]},{"id":"require_payment","title":"Return HTTP 402 when unpaid","description":"If access is missing, return a Hilt-created x402 payment requirement that describes the price and payment session for the protected resource.","links":["https://www.hilt.so/x402","https://www.hilt.so/articles/http-402-payment-required-api"]},{"id":"pay","title":"Let the buyer pay the advertised terms","description":"The buyer or buyer-agent validates the x402 V2 terms and signs the Solana USDC payment from its own wallet. The buyer never receives the merchant's Hilt API key.","links":["https://docs.hilt.so/developers/agent-micropayments"]},{"id":"retry","title":"Retry the protected resource","description":"The buyer retries the merchant's protected endpoint with PAYMENT-SIGNATURE. The buyer does not call Hilt's settlement or entitlement endpoints directly.","links":["https://docs.hilt.so/developers/examples"]},{"id":"settle","title":"Settle through Hilt from the merchant server","description":"The merchant server calls POST /v1/access/x402/settle. Hilt verifies the x402 V2 payment against the advertised Solana USDC terms, binds the receipt, activates entitlement, records support and audit state, and emits webhooks.","links":["https://docs.hilt.so/developers/webhooks","https://docs.hilt.so/merchant/payments-receipts"]},{"id":"consume_and_serve","title":"Consume usage, then serve","description":"For metered work, the merchant server atomically consumes one unit with POST /v1/access/entitlements/consume. The protected resource returns the paid result only after settlement and consumption both succeed.","links":["https://docs.hilt.so/developers/agent-micropayments"]}],"safe_boundaries":["Do not serve protected content from a wallet signature, transaction hash, or client claim alone.","For metered products, consume usage atomically before serving each billable operation.","Do not put Hilt API keys in browser code.","The buyer retries the protected resource; only the merchant server calls Hilt settlement and entitlement routes.","Do not claim Base, EVM, or USDT live settlement unless public Hilt docs announce availability.","Do not describe x402 as a chain, token, wallet, or settlement path."]}}