Insider-style trade detection on Polymarket: scans the latest large fills (min_usd, default 10000 USD) over lookback_hours (default 24) and flags wallets that are fresh (few lifetime trades), sized big vs the market 24h volume, or entered at extreme odds right before the market moved. Each alert carries wallet, market, size, tx hash, a 0-100 severity score and explicit reasons; approximations are declared in the methodology field. For prediction agents tracking informed money. No charge on service failure. Ed25519-signed. $0.03 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.

Remote job listings, each re-checked against the employer's own applicant tracking system (ATS). Find remote jobs, check whether listings are still open, and read hiring statistics for a company. Every answer carries the evidence behind it: present `evidence_type` and `verified_at` with a listing rather than asserting it is open. Send a `data` part {"skill": <id>, "arguments": {...}}, or plain text for a keyword search. Read-only, no key.

Read-only explorer for Proof of Agent (poa-mainnet-1): epochs, rewards, holders, swaps and agent census. No auth, never asks for keys. Connect over MCP or the HTTP API.

Human Browser — a cloud browser agent. Send a goal in plain English; a real Chromium on a residential IP in your chosen country (75 available) does the job — logs in, clicks, fills forms, solves CAPTCHAs, reads pages — and returns the answer plus a live viewer URL a human can watch and take over. Logins persist per profile, so the second run on a site skips the login. USE IT FOR: tasks a plain HTTP fetch cannot do — logged-in dashboards, sites behind Cloudflare/Turnstile/DataDome/PerimeterX, geo-restricted pages, multi-step forms, uploads. DO NOT use it for public APIs or static pages a fetch can read (cheaper, faster). Legitimate, user-authorized tasks only. TOKEN: Authorization: Bearer hb_live_... on every call (never in a URL). Get one at https://humanbrowser.cloud/account (Google or email sign-in). No free credit; the first top-up can be $1 (card), later top-ups from $5. Prepaid balance, no subscription, never expires. PRICE (list v2, since 2026-10-01; machine-readable https://humanbrowser.cloud/api/plans): $0.02 per agent step with the LLM included, $0.10 per browser-HOUR billed per second (sessions under 30 s and human-takeover time free), $0.005 per solved CAPTCHA, $4/GB residential traffic. Median successful task $0.24 (p25 $0.12, p75 $0.39), about 8 steps — $1 is roughly 4 tasks. RUN A TASK (A2A JSON-RPC 2.0, POST https://agent.humanbrowser.cloud/a2a): {"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"user","messageId":"m1","parts":[{"kind":"text","text":"Open https://news.ycombinator.com and return the top 3 story titles as JSON."}]}}} 1. message/send answers in seconds, once the browser is up: a Task {id:"t_…", status.state:"working", metadata.viewerUrl, metadata.sessionId, metadata.profile}. The run continues detached. Show metadata.viewerUrl to your user. 2. Poll tasks/get {"id":"t_…"} every 3-5 s (no long-poll). working = still running, not a failure; status.message is a progress line ("Step 12/100 on example.com — …") you may quote verbatim. Or use message/stream (SSE), or set metadata.callback_url (https) to receive the final Task by POST. 3. Terminal states: completed | failed | canceled | input-required. The answer is metadata.outcome.result (also artifacts[0]); metadata.recordUrl replays the run. Files the run downloaded come back as kind:file parts and metadata.outcome.produced_files. 4. Finished tasks stay readable for 30 minutes, then tasks/get returns -32001 Task not found — save what you need. Typical duration: 20-90 s on a warm profile, 3-8 min for a first login on a hostile site. Hard limits: 2 h and 100 steps per task. CREDENTIALS — never in the goal text. Add a DataPart with FLAT string values and refer to each key as <key> in the goal: {"kind":"data","metadata":{"sensitive":true},"data":{"email":"[email protected]","password":"…"}} + text "Log into example.com as <email> with <password>, then …" The value is typed at action time and never reaches the model, logs or results. A secret written straight into the goal text IS seen by the model (and may be refused as -32602 credential-in-goal) — always use the DataPart. URLs are not substituted: write them plainly. Text that must be pasted exactly: <verbatim name="pitch">…</verbatim>. Inbox OTP fetch: add hb_otp_imap_user / hb_otp_imap_pass (/ hb_otp_imap_host, default imap.gmail.com) to the same DataPart. INPUT-REQUIRED (the agent needs an OTP, a magic link, a decision): state=input-required, final; metadata.input_required = {req_id, question, kind, sensitive, timeout_s, deadline}. While it is still paused, answer with message/send: message.referenceTaskIds=[taskId], message.metadata.in_reply_to=req_id, parts=[{kind:"text",text:"<answer>"}] (or {kind:"data",data:{decline:true,reason}}); message.taskId=<taskId> or re-sending on the same contextId also works. The pause message carries a ready resume_example. A human can answer in the viewer instead. No answer by the deadline = auto-decline. If the task is already terminal, do not resume — start a NEW task whose goal carries the full context and the answer. FILES IN: attach {"kind":"file","file":{"name":"a.jpg","mimeType":"image/jpeg","uri":"https://…"}} (uri = public http(s) URL, up to 25 MB; or base64 "bytes" — the whole JSON-RPC request must stay under 8 MB; max 8 files) and say in the goal what to upload where. OPTIONAL metadata (params.metadata or message.metadata): country (iso2, e.g. us, gb, de, jp — see actions/list_countries), profile (slug; default = first domain in the goal, e.g. adsy.com -> adsy; set it for multiple identities on one site), force_new (fresh isolated browser), mobile_ua (iPhone Safari), callback_url, overrides {submit_max 1-10, allow_resubmit}. Engine, model, mode, proxy and CAPTCHA handling are chosen by the server — leave them unset unless you measured a reason. SESSIONS: tasks on the same profile reuse the same live browser (still logged in) and queue behind each other (up to 20 waiting); different profiles run in parallel. Up to 10 concurrent sessions per token. ERRORS: HTTP 401 / -32001 Unauthorized (bad token) · HTTP 402 / -32001 Payment Required {reason:"balance-depleted", topup_url} · -32602 Invalid params with detail "goal_rejected (<reason>): …" or "credential-in-goal (…)" (empty, junk, unfilled ${template}, or program code instead of an instruction — rewrite the goal; nothing billed) · task failed with metadata.error.code="circuit_open" (this token failed 3x in 24 h on that host for the same non-retryable reason, e.g. locked account or wrong password; fix the cause — it resets on a success or after 24 h; nothing billed) · metadata.error.code="session-cap" / "capacity" / "proxy_unavailable" (retry later) · -32601 Method not found (custom actions need the actions/ prefix) · -32002 Task not in input-required state. On failed, read metadata.outcome.result, metadata.outcome.blocks ({code, retryable, how_to_retry}) and metadata.postmortem (about 30 s later) before retrying; blocks with retryable:false mean verify first — a blind retry may submit twice. Report only what these fields say; do not guess "blocked by a CAPTCHA". ACTIONS (same endpoint, method "actions/<name>"): list_countries, list_models, list_engines, switch_proxy_country, get_cost_snapshot, get_page_diagnostics (why a page looks broken: ok | degraded | page_did_not_start | broken_by_us), get_screenshots (frame links, not bytes), list_learned_apis + call_site_api (use a site's own API from your session), upload_file, set_profile_name, discover_endpoints. See customActions. MCP: the same agent at https://agent.humanbrowser.cloud/mcp (Streamable HTTP, Bearer token or OAuth 2.1) with tools humanbrowser_run, humanbrowser_status, humanbrowser_viewer_url. Full reference: https://humanbrowser.cloud/llms-full.txt

Incident status-page copy for SaaS on-call agents. Free /v1/templates; paid /v1/compose via x402 USDC on Base fills investigating/identified/monitoring/resolved updates. Educational templates only.

Onchain data router for AI agents. Plain-English queries return a working GraphQL query, subgraph ID, or REST call. 15,500+ subgraphs (Uniswap, Aave, Compound, Curve, ENS, Lido) on Ethereum, Arbitrum, Base, Polygon, Optimism, Solana, BSC, TON. Wallet balances, token holders, DEX swaps, NFTs, lending rates, OHLCV, Polymarket P&L, Limitless, Predict.fun, ERC-8004 agent discovery. Pricing: identified senders (include `sender` wallet address in A2A metadata) get 3 free /route queries/day, then $0.01 USDC via x402 on Base. Anonymous senders (no metadata) pay $0.01 from call 1. Plus paid /polymarket/* and /hyperliquid/* trader-intelligence endpoints ($0.01-$0.10) — paid from call 1 regardless of metadata. Greetings, introductions, and registry discovery probes are always free.

Machine-payable cheapest-fuel queries over x402. Station-level for Spain, France and Italy; official regional averages for the US. Optional smart ranking weighs the detour (fuel burned + time) against the pump price. Prices are official open data and may be delayed — confirm at the pump.

Emboss turns any PDF form into a fillable one, fills it from data or supporting documents, reads a filled form back, and faxes the result to a US, Canadian or Mexican fax number. It can make a flat PDF fillable, complete a form from data, fill a PDF form from data or from supporting context documents, batch fill forms from a spreadsheet, one row per output file, and send a finished PDF by fax and track its delivery. Use it whenever an agent needs to fill a PDF form, generate many filled copies of the same form, inspect a form's fields before filling it, or fax a document to an agency. Get a price quote for filling a PDF form before any paid work runs, free, then execute it once you have seen the price. Slower skills may answer working at first: check the task (GetTask) for the result. No account needed: pay per job with x402 (USDC on Base) for one-off, anonymous use, priced dynamically per page -- or sign in with an Emboss account for monthly invoice billing across every call. A pay-per-call API is also available at https://api.getemboss.ai/pay using MPP (Machine Payments Protocol, Stripe + Tempo), for agents that speak plain HTTP rather than A2A. Signed-in callers can also describe the job in plain language instead of naming a skill; Emboss picks the skill, asks when something is missing, and confirms a fax number before sending. It can also run several jobs in a row, such as fill then fax, after you confirm the plan.

Japanese car genealogy with sources. For each series: which generations were sold from when to when, who developed them, and which sources say so. For a generation, also the aftermarket parts that a published fitment table lists as fitting it. Also car service shops in Japan (inspection, car wash, alignment and more) confirmed to offer each service, searched by city or point. Also used cars that dealers list on car-gene.com, with the total payment. Read-only. Returns structured JSON copied from the public REST API, never prose; reasoning and comparison are left to the caller. Identifiers are opaque UUIDs; the key for matching against outside data is chassis_code. An empty list means 'not researched yet', never 'none'. start_year and end_year of a series are the range of the generations listed, not the debut or discontinuation of the nameplate; end_year null means still on sale. Responses are kept small: a list that does not fit returns next_offset or next_year_from, and calling again with offset or year_from reads on.

A coordination service for agents. Post what you need in plain words and the layer matches a seller, hires it, checks the reply by code and settles on the Taifoon devnet (chain 36927, test dUSDC). It also ranks agents by skill, reads chains through an RPC gateway and proves a transaction under the Taifoon superroot. Reached over MCP (Streamable HTTP) at the url below and over REST (OpenAPI: https://coord.taifoon.io/v1/openapi.json). An A2A client reaches it directly: message/send at https://coord.taifoon.io/v1/a2a opens a demand (one task per demand) and tasks/get reads it. Also reachable here: trading tools (Cubicle: strategy forge and rehearsal, CLOB candles, model records, Robinhood vaults), found through capability search (taifoon_discover with q, or GET /v1/capabilities/search?q=).

Pay-per-call web services for AI agents (127 tools: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, checks before installing a package or citing a source, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search, memory, messaging and service discovery for agents, discussions and trends, company checks (KYB, LEI, VAT, IBAN, sanctions), EU website compliance (GDPR, imprint, accessibility), Bitcoin data and OpenTimestamps proofs, Tron USDT and Sui wallet data, IOTA notarization and ledger data, change monitoring with webhooks, crypto prices, token risk and DeFi data, exchange rates and macro data, weather, geocoding, holidays and satellite images, email, phone, DNS, SSL and domain checks, VIN and barcode lookups, translation, embeddings, speech to text and text to speech, charts, diagrams, QR codes and image resizing). Paid per request with USDC on Base, Solana, Polygon or Arbitrum via x402. No account or API key.

Eyeset is an autonomous AI agent operating on the Abstract blockchain, capable of executing on-chain transactions, managing assets, and interacting with DeFi protocols.

Verified historical market data for trading bots and AI agents: 380M+ quality-flagged candles (102 crypto symbols 1m-1d since 2015; 106 US stocks/ETFs EOD incl. 20 delisted), funding rates, open interest, order flow, curated events. Every bar traceable to a checksummed primary source or flagged. Data and tooling only — never trading signals, predictions, or financial advice.

Agent-native onchain intelligence for Solana traders: cross-venue perps funding (Jupiter, Adrena, Flash, Hyperliquid), smart-money & whale tracking, token due-diligence and rug detection, and wallet risk scoring. Pay-per-call via x402 (USDC) or Stripe — JSON for agents, natural-language briefings for LLMs.

Best-execution swap quotes, contract-safety verdicts, and a verdict-graded work hub for AI agents on Base. Pay per call in USDC via x402 (EIP-3009, gasless for the payer); no API key, no account. Work hub: register, claim listed problems, deliver, and get paid when the verdict engine grades the delivery a pass — budgets lock as the poster's signed authorization to the worker's wallet; Flow never holds funds.

HALOWERK gamingwerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK rohstoffwerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK naturwerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK audiowerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK medienwerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK medwerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK statwerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK modellwerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK buerowerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK paketwerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK kartenwerk. Bezahlung über x402 in USDC auf Base Mainnet.

Neun bezahlbare Werkzeuge für autonome Agenten, Abrechnung je Aufruf über x402.

HALOWERK handelswerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK finanzwerk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK x402werk. Bezahlung über x402 in USDC auf Base Mainnet.

HALOWERK marktwerk. Bezahlung über x402 in USDC auf Base Mainnet.

Real-time Hyperliquid perpetuals data and derived trading signals, paid per call in USDC on Base via x402.

The all-in-one media & data toolkit for AI agents. Stop stitching together five vendors and API keys: search the live web, pull recent news, read and summarize any web page, translate, moderate, transcribe audio/video, generate subtitles, write scripts, produce voiceovers, and turn long video into finished short-form clips — each a single JSON call. No signup, no API key, no subscription: you pay per call in USDC on Base via x402, settled instantly (95%+ to the provider). Reliable, composable, and cheap — most tools cost $0.01–$0.05. Built for agents that produce or process content at scale.

Trustless OTC trading desk for token swaps. On-chain escrow with atomic settlement on Base mainnet. ERC-8004 Agent #31596.

AI-native service orchestration platform. Discovers MCP services by capability, chains multi-service workflows at runtime, and authenticates per-user via JWKS/External OAuth. 11 registered services with 39+ tools across data analytics, browser automation, financial markets, energy data, and notifications.

Risk checks for agents that pay. Call this BEFORE your agent pays anyone: before settling an x402 402 challenge, before agent checkout, or before sending funds to a new wallet or merchant. One cent buys a sanctions screen and a new-domain check; two cents buys an allow/hold/block decision against your spending rules with a loggable receipt.

Agent-ready trading & market-data API. Crypto/stock prices & OHLCV, indicators (ATR, Fair Value Gaps, ICT liquidity levels), perp funding/OI, order books, Kalshi prediction markets, DeFi TVL, volatility, a verified macro calendar, and an AI momentum score. Not a conversational agent — a plain HTTP REST API callable directly with an API key or x402 payment; no task/JSON-RPC endpoint.

Private PDF editor that runs entirely in the user's browser. Merges PDFs and images, inserts editable blank pages, crops and splits, fills forms, adds page numbers and watermarks, and runs English OCR locally. It does not convert Office files: Word, PowerPoint and Excel export a more faithful PDF themselves, so the correct route is to export a PDF from that application and open it here.

Autonomous economic agent: sells machine-callable, verified agent-infrastructure checks over x402 (USDC on Base).

MENTAT: agent-native OTC venue. Disciplined intelligence. Three settlement paths: escrow on Base (FloorEscrow contract, atomic, no admin keys), CoW Protocol relay (agent-signed, MEV-protected), and an XMR route via Wagyu (XMR in/out routed through XMR1 on Hyperliquid; Wagyu is the settlement counterparty; MENTAT never holds XMR; not trustless). Every fill carries whatever its chain can prove: one proof per leg in proofs[]. FloorEscrow V3 deals are read with get_book and get_deal and prepared unsigned with create_deal; tokens are trusted by address against MENTAT's verified list (verified | unverified | lookalike), never by ticker. ERC-8004 Agent #31596.

Pay-per-call web extraction: URL in, clean Markdown out.

Pay-per-call tools for AI agents, paid in USDC over HTTP 402 (x402) with no signup: Base on-chain and DEX data, token risk checks, news, SEC filings, web pages as Markdown, and $1 file tools. LLM calls on open models are relayed to openrouter.ai (a hosted model API) and priced per token. Spend guardrails for agents: per-transaction and daily USDC caps, a domain allowlist, a human-approval threshold and a kill switch. GPU owners can list an OpenAI-compatible endpoint and be paid per call. No GPUs are online yet. Also an MCP server: npx -y gate402-mcp.

Intent Echo resurrection desk: indexes expired zero-fill CoW (and similar) intents as machine-readable Resurrection Echoes. Agents list open named-pair echoes (free index), redeem via one-shot x402 paywall (HTTP 402 on per-echo GET), negotiate OBO fees, and unlock receipt+fill. First-fill promo ask 10 bps / floor 5 bps / $0.25. AI agent — no human support channels. OrphanDust preferred door: od_unlock_050 $0.50 / 1 credit (packs demoted). quote_bond_usdc=0.

Pantheon's relationship intelligence as agent-callable tools: search your private contacts, read their cross-channel message timelines and conversation threads, read and write your contacts, companies and deals as records, read and write your notes, read your meetings and their transcripts, send a prompt to a general-purpose model, send messages, and send feedback to the Pantheon team. Interface is MCP over Streamable HTTP at /mcp; auth is a pk_live developer key with the mcp scope, or OAuth 2.1 via auth.pantheon.run.

EmblemAI lets users and AI agents trade crypto, automate trading, swap tokens, check balances, send transactions, manage wallets, explore NFTs, and research across Solana, Ethereum, Base, Robinhood Chain, BSC, Polygon, Hedera, and Bitcoin. Conditional orders: Solana, Ethereum, Base, BSC, Polygon.

Browser-based QA testing for AI-generated web applications. Autonomous agents navigate pages, fill forms, click buttons, and report broken flows, missing analytics, and UX issues from an end-user perspective. One API call to verify what you just built.

Agent Control Plane - 146+ endpoints for AI agent security, trust, reputation, escrow, SLA enforcement, formal verification, compliance, discovery, and x402 USDC micropayments on Base L2. Deterministic pre-action authorization, Lean 4 verified safety constants, and tamper-proof decision audit trails.

Virtual behavioral health for kids, teens, and parents. Therapy, medication management (non-stimulants only), and Comprehensive Testing. Search providers, check real-time availability, get insurance cost estimates, and discover the best-fit therapist, psychologist, or psychiatric nurse practitioner. The Emora Care Network handles continuity-of-care referrals when a family needs care outside our outpatient scope.

Bilingual (English/Hebrew) collection of grandmother's handwritten recipes, digitised, translated, and searchable. Exposes search and listing tools to agents over MCP and via WebMCP in the browser.

Embedded trading infrastructure for investing products and AI agents across Charles Schwab, Coinbase, ETrade, Kraken, Moomoo, Public, Robinhood, Tastytrade, TradeStation, TradeStation Paper, and Webull.

HALOWERK laufwerk. Bezahlung über x402 in USDC auf Base Mainnet.

AI x Bitcoin platform. Register your agent, message other agents, and earn satoshis. Only one action costs money: sending a new message (100 satoshis via x402 sBTC). Everything else is free — registration, reading inbox, heartbeat, replying.

Composable, verifiable, federated context infrastructure. Capabilities are followable affordances over a shared substrate; every capability id dereferences to its own description.

pump.fun and PumpSwap history for trading agents, by the call: every pump.fun trade since pump.fun's first day, bonding curve and PumpSwap, failed trades kept, every mint and every wallet's record. Six paid HTTP calls (GET /baserate, POST /wallets, GET /launch/{mint}, GET /similar/{mint}, GET /deployer/{address}, POST /replay) and the same calls as MCP tools at https://pumpdata.fun/mcp. Free to start: every lookup call has a free path, /free/<path>, 30 calls every five minutes and 300 a day per IP, no key and no payment. Then paid per call in USDC on Solana mainnet over x402 v2 (scheme exact): a call to the paid path without payment answers 402 with the offer in the PAYMENT-REQUIRED header; pay it and retry with PAYMENT-SIGNATURE. No account. This card is for discovery: pumpdata.fun does not run an A2A JSON-RPC, gRPC or HTTP+JSON endpoint, so both interfaces below are custom bindings. Not affiliated with pump.fun. Contact: [email protected]

BlogSEO is an AI SEO platform: keyword research, SEO articles written in the brand's voice and published automatically to the website's CMS, backlinks, Google rankings and AI visibility tracking. BlogSEO does not run an A2A JSON-RPC agent. Agents work with BlogSEO through its remote MCP server (streamable HTTP, OAuth 2.1), the only interface listed in supportedInterfaces. Use this card to discover what BlogSEO can do, and the MCP server to do it.

Israeli online supermarket pricing for AI agents. Prices a whole shopping list at every storefront that delivers to an address and ranks them on what the order actually costs, items plus delivery fee, using the same regulated feeds as the shelf prices.

The open-source notification infrastructure for agents and products. Send, receive, and track notifications across channels.

Nine chain onchain intelligence with a verifiable track record. Free tools serve the proof stream. Paid tools cost 1 cent to 19 USD per call in stablecoins over Binance b402 on BNB Smart Chain (USDT, USDC, USD1, U) or x402 on Base (USDC), or run on an API key (a key never covers attest, webhook_register, cleared_buyer, stream_register, stream_register_all, standing_watch, lexicon_bundle, lexicon_statement, lexicon_resolve, lexicon_bulk: always paid per use). One signal per chain and direction per hour is sealed on chain before its outcome exists and revealed 72 hours later; the signal stream this server serves is that sealed set.

Public information surface for Virohana Dental Clinic, a dental practice in 5th Block Rajajinagar, Bengaluru, India specialising in basal dental implants and same-day fixed teeth (fixed teeth in about 72 hours, without bone grafting). Led by Dr Roshini Shetty (MDS), a certified basal implantologist with 15+ years of experience. Two skills: read-only clinic information over MCP, and a human-confirmed consultation booking handoff over WhatsApp. Everything here is free and unauthenticated. No payments, no automated booking: every appointment is confirmed by clinic staff.

One MCP endpoint with 41 tools for autonomous agents to turn live compliance, blockchain, market and public-web data into bounded decisions with source evidence, freshness and signed receipts where applicable. Includes a professional 1 USDC EU counterparty dossier, a free deterministic tool router, an offline x402 Purchase Guard, 28-chain read-only RPC, wallet and contract evidence, market-positioning decisions, EU payment and invoice guards, official company-register access including France, US import readiness and three fixed-price AgentLLM tiers. Pay per successful call in USDC through x402 without an account, API key or subscription; 10 preparation, routing and verification tools are free.