Agent & Infrastructure

Pad a string to a target width with a fill character — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that already converted…

Pay-per-call API for AI model benchmarks, comparisons, and cited research

Active DAO governance proposals (ENS, Arbitrum, Uniswap, Compound, Optimism, Lido, Curve (Ownership), Curve (Parameter), Aave): Snapshot (off-chain signal) cross-checked against a direct read of the onchain Governor contract (source of truth). Not an aggregation of one third-party dashboard — a cross-check. The discrepancy field flags cases where the off-chain signal stays silent about something real happening onchain (confirmed on Arbitrum: a public tracker showed the DAO as archived while its contract had an active vote on 48M ARB). Optional dao query parameter filters to a single DAO.

Agent Vetting Bureau — Static security dossier of an MCP server / agent endpoint: endpoints, data flows, network calls, exfil signals, permissions requested, deterministic reputation score. Params: url (http/https).

List object keys. Call when you introspect agent-held JSON objects. Returns keys and count for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

Host from a URL. Use to extract the host for allowlists, branding, or outbound policy checks. Returns the host/domain component; the URL is never fetched. $0.001 USDC per successful call via x402 on Base—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.

ShieldAPI - x402 security preflight before agents accept or store credential material

ShieldAPI - x402 security preflight before agents accept or store credential material

Monitor ONE x402 endpoint for 30 days and get alerted on changes that break agents: payTo changes (critical — possible takeover/rug), price changes, asset/network changes, 402-spec regressions, delisting, and liveness (down/recovered). Account-free: pay, receive a one-time secret + poll URL. Push to multiple signed HTTPS webhooks and/or Slack/Discord incoming webhooks (up to 5 each per watch). Every push URL is connection-tested before payment — unreachable URLs are rejected with no charge. Edit URLs or cancel early for free via bearer-authed PATCH/DELETE /v1/watch/{id}. Poll the append-only event log; nothing is lost between polls.

Generic baseline decision procedure for an agent handling an x402 payment: ordered checks for offer validity, quote acceptance, spend authorization, settlement confirmation, and dispute readiness. Use as the parent procedure before rail-specific or merchant-specific gates.

Does a catalogue listing still match what the origin serves? Calls the resource with no payment, reads the price, network and payTo out of the 402 the origin itself returns, and compares them with the price the catalogue advertises. The 402 is the authoritative statement; the catalogue is a cache of one. Also separates two failures no catalogue reports: an origin that is gone, and an origin that answers but whose response headers exceed the 16384-byte ceiling Node applies to all response headers combined -- live, indexed and impossible to pay from a Node client. Required: resource. Optional: advertised_price. Honest note: demand for this route is not measured; it exists because the defect it reports was measured on our own surface first.

JSON type name for a value. Call when you branch agent logic by runtime JSON type. Returns type string for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

ShieldAPI - x402 security preflight before agents install or run npm/PyPI dependencies

ShieldAPI - x402 security preflight before agents install or run npm/PyPI dependencies

JSON validation API for agents: validate, normalize, and pretty-print a bounded JSON payload for $0.001 USDC with structured errors—no API key or upstream.

Is the Govparse Agent Gateway up, and which product datasets does it front? Returns a signed _meta attestation proving the payment-to-attestation pipeline end to end.

🔍 DATA GUIDE — Tell me what economic data you need and I will recommend the best x402 endpoint. China GDP? US trade? EU inflation? Crypto signals? Gold prices? Ask me anything. 💎【付款后立得】实时结构化JSON，即插即用——无需注册，USDC一键支付即取数据。

Get YOUR x402 endpoint listed in this Bazaar - done for you, $99 one-time. You receive a deploy-ready x402 v2 kit generated for your stack (Next.js, Express, serverless; PHP via a free serverless function) with your wallet, price and discovery declaration baked in, plus a resumable listing_key that drives the automated pipeline via MCP (https://mudko.com/api/mcp): validate against Coinbase's own preflight with per-check fixes, and when your price is $1 or under WE fire the indexing settlement from our funded wallet. Ends with a receipt: settle tx + your live merchant-feed entry. Built by the team that listed its own endpoints first (this very listing is dogfood). Keepalive add-on available so you never fall out of the index.

stock_intel intelligence for autonomous agents. Signed x402 call. 0.03 USDC on Base.

HTTPBin Test Echo - a Sly-published x402 service running on Sly's gateway (api.getsly.ai). Used to validate the publish + gateway flow end-to-end. Powered by Sly (https://getsly.ai). Buyer agents call this URL with x402 payment and get a JSON slideshow back. Sly Treasury account, Demo Fintech tenant, demo/test slug.

Retrieves differences in agent tool call behavior or outputs between two versions or states.

Compile reputation metrics and latency percentiles from historical probe checks for a target endpoint

Verifies whether a request originates from an automated bot or human user.

Returns current market risk state, per-symbol signal streaks, and active cooldown timers — use it as a pre-trade risk gate before acting on any signal. Typical agent tasks: check if BTC or ETH is in cooldown before a trading agent acts, confirm signal streak length for momentum context, gate an autonomous workflow on risk state, or add a safety check ahead of a decision call. Fresh continuously, USDC on Base mainnet via x402.