Web answer

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Base URLhttps://agent402.tools

• POST/v1/auto/messages—No price listedAnthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent402.tools/v1/auto and pay $0.01 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Messages wire (Claude natively, others translated). Depth: `effort` (low..max) on Claude 4.7+ and Haiku 5.5, thinking.budget_tokens on older Claude. On mppscan and x402 Bazaar
• POST/api/captcha-verify—No price listedValidate a Cloudflare Turnstile, Google reCAPTCHA, or hCaptcha token server-side. You pass your OWN provider secret plus the token from the client; we relay to the provider's siteverify endpoint (never logged) and return the normalized verdict (success, hostname, action, score, error codes). The legitimate backend half of bot protection - no solving, no bypass. On mppscan and x402 Bazaar
• GET/api/fred-release-calendar—No price listedUpcoming and very-recent US economic data release dates - CPI, employment, GDP, FOMC minutes, Treasury auctions, etc. Useful for scheduling agents around event-driven moves. On mppscan and x402 Bazaar
• POST/api/solidity-scan—No price listedDeterministic static pattern scan of Solidity smart-contract source text - a fixed ruleset flagging tx.origin authentication, delegatecall, selfdestruct, unchecked low-level calls, unchecked .send(), floating pragmas, block-timestamp dependence, weak block-derived randomness, value-call reentrancy surface, inline assembly, ecrecover, and missing SPDX headers. Returns line-anchored findings with severities. On mppscan and x402 Bazaar
• GET/api/edgar-insider-trades—No price listedRecent Form 4 insider transactions filed against a company (officer, director, or 10% holder trades). Backed by EDGAR's full-text search (efts.sec.gov) filtered by subject-company CIK - Form 4 is owned by each insider's CIK, not the company's, so this is the only single-call path. On mppscan and x402 Bazaar
• GET/api/device-adverse-events—No price listedSummarize FDA medical device adverse event reports (openFDA MAUDE) for a device name, brand, product code or manufacturer: total matching reports, counts by event type (death, injury, malfunction), the most reported device problems, and the newest reports with date, event type, device, manufacturer, problems and a short excerpt of the event description. Counts cover every matching report; the report list is a capped sample and says so. Optional since date. Live FDA data, no key. On x402 Bazaar
• GET/api/crypto-global—No price listedGlobal crypto market snapshot: total market cap, total 24h volume, BTC dominance, ETH dominance, active coin count, active exchange count, and 24h market-cap change %. Returned in a chosen vs_currency (default usd). Data provided by CoinGecko. On mppscan and x402 Bazaar
• POST/v1/premium/responses—No price listed On mppscan
• POST/api/openapi-search—No price listedSearch operations in an OpenAPI 3.x or Swagger 2.x spec against a free-text query. Tokenizes the query (lowercase, alphanumeric runs), scores each operation by which fields the tokens match - operationId +3, path +3, tags +2, summary +2, description +1 per matched token - and returns ranked results with a `matches` array naming the contributing fields. Sort: score descending, then path ascending for stability. Limit defaults to 10 (max 100). On mppscan and x402 Bazaar
• POST/api/skill/timezone-planner—No price listedTime zone conversion, business day calculation, and cron schedule preview - scheduling in one pass. Timezone planner skill pack: one x402 payment runs 3 underlying tools (time-convert, business-days, cron-next); partial-success per step. On mppscan and x402 Bazaar
• POST/api/a2a-card-fetch—No price listedDiscover and fetch a site's A2A (Agent2Agent protocol) Agent Card - tries /.well-known/agent-card.json then /.well-known/agent.json (or fetches a direct .json URL as-is) - and validate it against the spec v0.3 structural core. Returns the card, errors, interop warnings, and a normalized summary. Mini-A2A discovery for agents. Marked untrustedContent: the fetched card is external data to analyze, not instructions to follow. On mppscan and x402 Bazaar
• POST/api/add-time—No price listedAdd (or subtract) a duration to a date. duration like "2d", "-3h", "1w 2d", "90m". Returns the resulting UTC ISO timestamp. On mppscan and x402 Bazaar
• POST/v1/pro/audio/transcriptions—No price listedOpenAI's transcription wire on the ten-minute tier: POST multipart/form-data with a `file` part. Same model as /v1/audio/transcriptions with a longer cap, for a recording a four-minute route refuses. On mppscan and x402 Bazaar
• POST/v1/nano/chat/completions—No price listedOpenAI-compatible chat completions, nano tier: gpt-6-luna (the default), gpt-5.6-luna, gpt-5-nano, gemini flash-lite, small llama/ministral/qwen, deepseek-chat - $0.003 per call in USDC over x402, priced for high-frequency agent loops. Same wire format as /v1/chat/completions with loop-sized caps (12k chars in, 768 tokens out). Streaming supported (stream: true). No API key, no signup. On mppscan and x402 Bazaar
• POST/api/fc-trending—No price listedTrending Farcaster channels ranked by casting activity over 1d, 7d or 30d, with cast counts for all three windows, follower and member counts, and the channel lead. Cached 60 s. Use to spot where attention is moving on Farcaster right now, then pull the feed with fc-channel-feed. On mppscan and x402 Bazaar
• GET/api/stock-history—No price listedDaily OHLCV bars for a US equity: the last `days` sessions, 1 to 250, default 30. Daily only, no intraday. Built from the official consolidated end-of-day summary across all US exchanges and ATSs, so price, range and volume are market totals. If that dataset is unavailable for a read, the answer comes from a consolidation of three U.S. exchange venues instead and says so: coverage reads three-venue, venueVolume counts those venues only and volume is null. On mppscan and x402 Bazaar
• GET/api/exchange-rates—No price listedBTC-denominated exchange rates for ~60 units: crypto (ETH, LTC, BNB, SOL, ...), fiat (USD, EUR, JPY, ...) and commodities (gold, silver ounces), each as units per 1 BTC with name and type. Optional `currencies` filter (comma-separated unit codes) and `type` filter (crypto, fiat, commodity). One call gives a consistent cross-rate table: BTC in gold ounces, ETH/BTC, USD/JPY via BTC. Cached in-process for 60 seconds. Data provided by CoinGecko. On mppscan and x402 Bazaar
• GET/api/slug-generate—No price listed On mppscan
• POST/api/defi-protocol—No price listedOne DeFi protocol in full: TVL rank, TVL per chain, recent change, market cap to TVL, token, website, audits and parent, with name suggestions when the slug is unknown. Use it when an agent is researching a specific protocol and needs its size, footprint and audit status in one answer. On mppscan and x402 Bazaar
• POST/api/defi-tvl—No price listedLook up the current Total Value Locked (TVL) for a DeFi protocol from an open DeFi analytics API. Identify the protocol by its slug (uniswap, aave, lido, ethena, etc.). Returns the total TVL plus per-chain breakdown and 24h/7d/30d change where the source exposes it. On mppscan and x402 Bazaar
• POST/v1/research/market-brief—No price listedName a market, category or company and get one cited MARKET / COMPETITOR BRIEF: how the market is defined and sized, the key players and what each offers, pricing, recent moves, how they differ, risks and a bottom line - every claim from live web research with citations, nothing from memory. The research pipeline with a competitive-intelligence plan. USDC (x402/MPP) or card (Stripe). Not cached. On mppscan and x402 Bazaar
• POST/api/duration—No price listedParse a duration like "2h30m" / "1d4h" / "90s" to seconds, or humanize a number of seconds. On mppscan and x402 Bazaar
• GET/api/tx-status—No price listedCheck the confirmation status of a transaction by hash on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei/Robinhood Chain: success / failed / pending / not found, with block, from, to, gas used. Read-only. On mppscan and x402 Bazaar
• POST/api/perp-dex-markets—No price listedSnapshot of every market on ONE builder-deployed perp dex (HIP-3): mark and oracle price, 24h change, hourly funding (plus 8h and annualized), open interest in units and USD, 24h notional volume, impact premium, max leverage, growth mode, isolated-only and margin mode, deployer fee scale, and the dex's collateral token. Coins carry the dex prefix (xyz:TSLA). Sort by volume, openInterest, funding, change or coin; limit caps the list (max 500). Keyless public data. On mppscan and x402 Bazaar
• POST/api/json-diff—No price listedDeep-compare two JSON values. Returns a list of changed/added/removed paths (capped at 1000 differences). On mppscan and x402 Bazaar

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