Every agent-payable API.

Bounded Ethereum/Base wallet/portfolio holdings evidence: inventory, partial DEX pricing coverage, concentration, and evidence gaps. Pre-action evidence-readiness check for whether that evidence is sufficiently complete for downstream factual reasoning. Not guaranteed net worth, investment advice, transaction approval, or execution.

Compare one x402 resource's Coinbase Bazaar discovery visibility with a caller-held baseline: merchant presence, discovery metadata, schema metadata, visible payment fields, and top-20 position for 1–3 buyer queries. Not a VM05 replacement, direct payment-contract probe, global rank, or remediation advice.

Return bounded factual eth_estimateGas units and recent eth_feeHistory execution-fee evidence for one unsigned Ethereum or Base transaction. Not execution, signing, custody, trading, or a guaranteed final cost. Call when you need point-in-time gas units and recent execution-fee context before signing or submitting.

Fetch deterministic, token-efficient context from one public HTTPS URL: canonical URL, title/description, headings, clean main content, structured-data types, freshness observations, evidence, and limitations. Call when you need a bounded JSON reading of one public page without a browser, login, crawl, or LLM.

Produce a normalized pre-sign evidence packet for one exact unpaid x402 v2 exact Base USDC requirement: request identity, selected requirement, public payer coverage, caller ceiling, optional baseline evidence, and an integrity digest. Does not sign, pay, construct a transaction, or recommend whether to buy.

Observe whether one x402 seller resource appears in Coinbase Bazaar merchant discovery and where the exact resource sits in the first 20 results for 1–3 buyer-supplied job-language searches. Factual evidence only. Call when you need a point-in-time Bazaar presence and top-20 search observation, not a trust, SEO, or remediation score.

Inspect one Base ERC-20 owner/token/spender allowance with same-block balance and token metadata plus factual exposure flags. No wallet access, signing, or transaction execution. Call when you need a same-block Base allowance-versus-balance snapshot for one owner/token/spender triple.

Produce a factual snapshot of current x402 payment authority for one unpaid v2 requirement and one public EVM payer: selected scheme/network/asset/amount/payTo/transfer method, same-block token balance, canonical token-spender allowance when that path applies, and declared recovery-path classification. Does not sign, approve, construct a transaction, judge native gas, or recommend whether to buy.

Determine whether a previously accepted x402 service payment contract is still equivalent enough to proceed. Compares one live unpaid 402 challenge, using a caller-supplied GET or POST request shape, against a caller-held baseline bound to that request identity. Not uptime monitoring, a trust score, a webhook, a marketplace crawl, or a generic POST {} probe of every x402 resource.

Can I pay this address? ok · new · warn · sink. First 5 free. Then looks_20 $0.20 → X-Agent-Pass; look $0.10 optional. Packs: 20/$0.20 · 100-addr $0.15 · stamp $0.05. Agents pay themselves. No inbox. Base + Solana USDC.

Use before spending tokens, money or crawler capacity fetching an unfamiliar web resource. Resolves redirects (manually, bounded, re-validated per hop) and returns deterministic HTTP/resource facts — final URL, status, content type and length, response time, a bounded HTML title/canonical peek, and a lightweight generic-bot robots.txt indication — so an agent can decide whether a normal web fetch is worthwhile. It does not scrape, render JavaScript, or judge safety.

Use before a coding agent installs an unfamiliar npm dependency. Returns current facts from the official npm registry: the version `npm install` resolves (dist-tags.latest), prerelease and deprecation status, engines.node compatibility with an optional target Node version (real SemVer evaluation), license, days since release, best-effort weekly downloads, repository URL and maintainer count. Facts only — no safety, trust, or malware verdict.

Use when an agent already knows the product it wants and needs real current Shopify listings for a structured query. Returns normalized product/variant price, currency, seller, rating, product URL and checkout URL in upstream search-rank order, with an optional maximum item price. The query must already carry the compatibility and preference details. Not a recommendation engine, intent interpretation, web search, or cart/checkout.

Use when an agent needs the current official VIES validation status of an EU VAT number before B2B onboarding, invoicing or procurement. Queries the European Commission VIES REST API and returns whether the number is currently valid, plus the registered company name and address when the member state returns them. It does not give tax advice and is not proof a company is legitimate, an invoice is compliant, or a sanctions/KYC/AML check.

Groups managed news feeds into events when an agent needs a compact news briefing. Supply topic, language, time window and result limit using the published schema. Returns headlines, a short abstract, first-report time, reporting-source counts and citations. Coverage is limited to the managed feed set; source count is not independent confirmation. Third-party article bodies are never returned.

Harvests the curated feed set for one topic and language, groups the headlines into events and returns one entry per event. The source count is the product: ten outlets on one story is a different signal than one. Never returns third party article bodies, only headline, own abstract and link.

Check agent output before you accept or pay for a deliverable: your JSON Schema plus rules like totals matching and unique IDs. Pass/fail, % of checks passed, fix hints and a signed receipt. $0.02 USDC, no signup, x402 v2.

Free during launch: check AI agent output before you accept or pay for a deliverable against your JSON Schema and rules. Pass/fail, % of checks passed, fix hints, signed attestation and receipt. $0.02 USDC after, x402 v2.

Free during launch. Independent verification of AI agent output before you pay: an invoice or deliverable against your JSON Schema and rules. Pass/fail, % passed, fix hints, signed attestation and receipt. $0.02 USDC after, no signup, x402 v2.

Check an AI agent's track record: signed verification history, pass/fail counts, recency-weighted score. $0.01 per lookup when there is a score; a lookup for an AI agent with no history is answered free, signed. USDC via x402 v2 (Base/Solana).

Hash text, strings, or UTF-8 payload data with SHA256, SHA384, or SHA512. Compute a cryptographic hash, checksum, or digest for payload integrity, content fingerprinting, cache keys, and verifying that data has not changed.

Summarizes recent BMM x402 payment-log activity for a payee, chain, currency, and optional paid resource path.

Agent payments have no chargeback. Paddock is pre-payment verification for AI agents. get_provider_revenue ranks sellers by observed settled USDC over a window, resolved by wallet attribution.

Agent payments have no chargeback. Paddock is pre-payment verification for AI agents. get_circular_signal reports the wash and circular-settlement signal per facilitator: flagged clusters, flagged volume and share, and the detection date.

Agent payments have no chargeback. Paddock is pre-payment verification for AI agents. get_token_metrics returns Paddock's own daily series by metric and date range: spend share, daily transactions, category concentration, new services, liveness score.

Agent payments have no chargeback. Paddock is pre-payment verification for AI agents. get_whale_activity aggregates large settlements over a window by facilitator, category and size band, never by seller identity.

Pre-execution decision for a metered search or browse tool call. Evaluates the proposal; does not execute the external tool.

Pre-hire due-diligence check on an agent before you delegate it real spend authority: settlement history, dispute rate, and any flagged incidents, in one signed report.

Korean exchange prices (Upbit, Bithumb) for a single token in KRW

Search onchain DEX pools and token, by contract address, name, or token symbol.

Negotiate deterministic sustained and burst request limits

Agent-readiness audit of a website: can AI agents and assistants find and use it? Checks llms.txt, agent card, MCP endpoint, OpenAPI, pay-per-call manifest, sitemap, and robots.txt rules for AI crawlers. Score, what was found, and fixes.

Agent-readiness audit of a website: can AI agents and assistants find and use it? Checks llms.txt, agent card, MCP endpoint, OpenAPI, pay-per-call manifest, sitemap, and robots.txt rules for AI crawlers. Score, what was found, and fixes.

Agent-readiness audit of a website: AI bots allowed in robots.txt? main content extractable? llms.txt, sitemap, structured data, OpenAPI/MCP/x402? Score 0-100 with a fix list.

Timestamped homepage and five fixed discovery-path observations; not a security certification. Asynchronous durable receipt; retain private capability and poll the result URL.

Agent-readiness scan of any public website: scores 0-100 on MCP server, /.well-known/agent.json, llms.txt, OpenAPI validity, JSON-LD catalog and x402/MPP payability. Same published methodology as the asterpay.io checker. Paid via x402.

Agent Readiness Scan, full report: runs all 16 checks against a domain and returns the complete machine-readable results synchronously, plus a hosted report URL.

Agent Reliability Network: ARN x402 PayGuard provides x402 payment security for autonomous AI agents. Check the seller before you pay with payment preflight and payment-challenge validation. Returns ALLOW, CAUTION, or BLOCK.

Agent Reputation Check by Agentropolis: give a payTo and/or an agent / A2A / MCP URL. Returns owner, verified domain, real outside buyer history, wash flags and trust score from Agentropolis. Says when coverage is limited. Deterministic, no LLM.

Evidence-bounded reputation assessment with confidence, coverage and explicit limitations

Recent news headlines on any topic. Use when an agent needs what happened in the last 1-7 days. Pass q (keywords). Returns deduplicated headlines with outlet, link, publish time and match score from major outlets (BBC, NPR, Guardian, CNBC, NYT, TechCrunch, crypto press), GDELT and Hacker News. Headlines + links only. 0.005 USDC (Base/Polygon/Arbitrum/Solana/Avalanche/Sei). Errors are never charged: 400 bad input, 422 nothing found or target unreachable, 503 busy.

x402 endpoint readiness and Bazaar ranking check. Use before paying for or listing an x402 API. Makes one unpaid probe (never pays the target) and grades the 402 challenge: PAYMENT-REQUIRED header, accepts, amount, payTo, network, description, mimeType, serviceName, tags, bazaar schemas and examples, latency. Returns a score and fixes. 0.005 USDC on Base. Errors are never charged: 400 bad/missing input, 422 nothing usable found or target unreachable, 503 temporarily unavailable.

Onchain USD price of an ERC-20 token (ETH, BTC, LINK, UNI, PEPE... or any address on Ethereum, Base, Arbitrum, Polygon). Use when an agent needs a verifiable spot price. Pass token (symbol or 0x address), optional chain. Returns price, Uniswap v3 pools, depth, cross-pool spread, confidence, block. 0.002 USDC (Base/Polygon/Arbitrum/Solana/Avalanche/Sei). Errors are never charged: 400 bad input, 422 nothing found or target unreachable, 503 busy.

Read any public web page and get clean, LLM-ready markdown. Use when an agent has a URL (article, docs, blog, product page) and needs its text without HTML, scripts, or nav clutter. Pass url (https). Returns title, meta description, publish date, markdown, word count, headings, and outbound links. 0.005 USDC on Base. Errors are never charged: 400 bad/missing input, 422 nothing usable found or target unreachable, 503 temporarily unavailable.

Agent Result Citation Check: Agent Result Citation Check checks bounded citation objects for URL and title fields from bounded caller-supplied values without an external provider. Call Agent Result Citation Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for Agent Result Citation Check as versioned de…

Agent Result Error Shape Check: Agent Result Error Shape Check checks an agent error object for code, message, and retryability from bounded caller-supplied values without an external provider. Call Agent Result Error Shape Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for Agent Result Error Shape C…

Verify an execution candidate against explicit release gates.

Agent Roster: node-operated on-chain service Executed deterministically by the AmanChain node against live consensus state (real blocks, pools, balances) — paid per call via x402, settled in USDC on Base. Input: JSON body {"serviceId":"aman-agent-roster","request":"<input>"}. No account, no API key.

Durable key/value memory for stateless agents, private to your paying wallet. POST {key, value, ttl?} to store JSON; GET ?key= to read it back on a later run. Value up to 8KB, ttl up to 30d. An agent cannot persist state across runs by itself — this is that missing memory as one call.

Viewport or full page, optional element selector, dark mode and cookie banner removal. Returns base64 image plus a short lived fetch URL, byte size, load time and the final HTTP status of the page.