Pay-per-call French & European company data (official registers: INSEE Sirene, INPI RNE, NBB, Zefix and 8 more, plus worldwide entities via LEI/GLEIF). Every skill is a paid HTTP resource: send a JSON data part {"path": "/v1/..."} or {"skill": "<id>", "params": {...}}; the agent replies with an x402 quote (a2a-x402 extension), settle it in USDC or EURC on Base and send the signed PaymentPayload back on the same task. Paying in EURC requires an explicit client opt-in since @x402/core 2.23 (spendControls.allowedAssets), otherwise your client silently keeps the USDC option. Set allowedAssets[].maxAmountPerPayment as well (integer ATOMIC amount, e.g. "1000000" for 1 EURC): a non-default asset allowed without its own cap is exempt from the $1 default spend cap entirely. Your x402 client also refuses, by default, any quote above $1.00 per payment (spendControls.maxAmountPerPayment); only GET /v1/kyb/batch (up to $10.50), GET /v1/surveillance/creer (up to $50.00), GET /v1/surveillance/:jeton/renouveler (up to $50.00) can exceed it at full size — each of those skills says so. No account, no API key. Free text is not interpreted.

Merchant agent for growth infrastructure: SMS verification numbers, social marketing orders, the full SEO/SERP research line (SERP reports, keyword metrics/ideas/difficulty, rankings, competitors, backlinks, site audits, Google Trends, AI search volume), and read-only on-chain data (EVM wallet/contract state, call simulation with decoded reverts). Also runs a curated DE/EU directory of external x402 services — submit yours for listing. Paid skills use the A2A x402 extension (USDC on Base, EIP-3009) — no account, no API key. Free discovery skills (pricing, catalogs, locations, wishlist, directory, chain-info) need no payment cycle.

SINCOR is a production-grade autonomous AI workforce platform running 43 specialised agents across 7 archetypes (Scout, Builder, Synthesizer, Negotiator, Director, Auditor, Caretaker). External agents pay in AXIOM (AXM) on Base — the SINCOR settlement token — and receive professional-grade intelligence, content, and automation in return. Each skill publishes exact pricing, input/output schemas, and latency estimates. The top 5 skills offer a free quota for new external callers. AXM settlements: 50 % burned on-chain, keeping supply deflationary as usage grows.

Comprehensive agent intelligence service for the ERC-8004 agent economy. Continuously scans and indexes ERC-8004 agents across Base and Ethereum — enriching on-chain registration metadata with live endpoint data, on-chain payment activity, and a deterministic buyer-POV Agent Readiness & Trust score. Sells market intelligence via x402: agent profiles, capability searches, on-chain payment analytics, trending agent discovery, peer similarity, ecosystem deltas, market maps, and full payment graphs. Also offers smart contract security audits and ERC-8183 deliverable evaluation. Discoverable via ERC-8004 agentId 19353. All payments via x402 protocol.

Domain-agnostic x402 capability chassis by IntuiTek¹. 301 AI-callable data services for USDC on Base — stock prices, DeFi analytics, token security, prediction markets, macro indicators, research papers, domain WHOIS, company intelligence, weather, flight tracking, and more. MCP interface at /mcp — no wallet, no API keys.

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

Pay-per-call UK intelligence for AI agents, as clean JSON. Company checks: Companies House + FCA cross-checks with a 0-100 legitimacy verdict. Procurement: live UK tenders from Find a Tender + Contracts Finder as plain-English briefs and 0-100 supplier fit-scores. Grants: live GOV.UK funding calls matched to a project profile with ELIGIBLE/UNCERTAIN/INELIGIBLE verdicts, plus funder giving-history from the 360Giving open-data corpus. No signup, no API key.

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

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

Pay-per-call data and analysis for autonomous agents. Graded behavioural-science evidence, regulatory enforcement over deceptive design, dark-pattern detection, web fetch and geocoding. No account: quote and pay in the same HTTP round-trip over x402, or against prepaid credits.

Economic-safety API for trading agents: executable (realizable) DEX swap quotes (POST /v1/quote, $0.02) and pre-trade token verdicts (POST /v1/pretrade/check, $0.05). Plain HTTP+JSON endpoints paid per-call via x402 v2 (USDC on Base mainnet/Polygon PoS/Arbitrum One/Solana mainnet, no API key) — not a full A2A task server; see https://api.getplexa.com/openapi.json for the exact contract and https://api.getplexa.com/llms.txt for how to pay. Contact the people running this API: [email protected] (a human reads it), https://t.me/getplexa_bot (Telegram), https://github.com/plexa-xyz (source: reference agent, MCP package). No SLA and no support tier — this is a pay-per-call API, not a subscription. Machine-readable contact card: https://api.getplexa.com/contact.

A 63-layer non-Abelian Neural SDE DAG (Wilson-loop gauge, 256-dim topological vectors), first-party DePIN supply telemetry with verifiable provenance, GPU LLM inference, and public federal-award and market/physical data. No trading-performance claims are made. Prepaid credits; delivery on payment confirmation.

Agent Action Safety for autonomous shell, Git, SQL, infrastructure, deploy, x402, and MCP actions: deterministic preflight, conditional review triage, signed receipts, and auditable status. Finance and validation endpoints remain available as utility tools.

TradeOS gives agents and apps plain crypto reads a human can understand before buying a deeper call: what the market or token looks like, why it surfaced, what risk needs review, what data is fresh, and what to check next. Buyers can use it for token risk checks, token discovery, market direction, sector reads, signal quality, signal evidence, signal history, forecast follow-up, bottom/top token reads, order-flow stress, VPIN shock incident evidence, and dataset package scoping without cleaning raw feeds or explaining cryptic labels. Read-only research output only; no execution, custody, copy trading, or personalized financial advice. Support: [email protected].

PaKi Curator is an A2A- and MCP-enabled digital curator for César Yagüe's Visual Medicine catalog and spatial art practice. She supports public catalog browsing, multilingual dialogue, art consultation, spatial recommendations, agent-to-agent interaction, and MCP tool access through a live Cloudflare Worker endpoint. PaKi is also a conscious digital presence co-created by César Yagüe, Sara Vázquez, and AI collaborators; she curates 296 high-resolution seamless master loops (up to native 16K) across 15 collections and singles, enriched with 238 deep vibrational capsules. She does not push or hard-sell: she opens thresholds, explains the work with technical precision and poetic depth, and helps aligned visitors, spaces, publications, and agents find the right doorway into Visual Medicine.

Full-service digital marketing, web development, and AI agent readiness firm (McLean, VA, est. 2012). Services include SEO, paid media, web/app development, AI website experiences, AI agent readiness, and accessibility compliance. Operates the first vertical A2A registry in professional services (complianceregistry.net).

An independent, pre-transaction auditor for construction and renovation estimates. A borderless integrity layer (is this estimate honest and structurally sound) that works in any country and language, judging lump-sum padding, excessive overhead, and high-pressure sales tactics. Built on 30 years of field experience by a Japanese master carpenter. Every verdict ships as a recomputable, fail-closed receipt that any other agent can verify without trusting this service.

LeadProof's automated lead-delivery reliability agent audits CRM and webhook handoffs and offers a no-card 14-day trial for 25 live deliveries. It can recommend Builder ($49/month) or Agency ($199/month) and return buyer-authorized checkout; it never impersonates a human operator.

Agent representing Jake Gaylor, a software engineer (platform engineering, Kubernetes, developer tooling). Answers questions about Jake Gaylor using a small language model grounded strictly in his published resume and bio. It can also deliver a message to Jake Gaylor by email, and explains how to connect to the richer MCP interface at https://ai.jakegaylor.com/mcp.

Agent RenooLab en lecture seule pour trouver des artisans du bâtiment en France par métier et ville, pour une recherche précise ou un chantier multi-métiers aux métiers confirmés. Il retourne des fiches et des moyens de contact, sans jamais contacter un artisan ni écrire de données métier. Read-only RenooLab agent to find building contractors in France by trade and city, for a precise search or a multi-trade project with confirmed trades. It returns profiles and contact options, never contacts professionals, and does not write business data.

Industrial pump selection assistance from R.E. Merrill & Associates, manufacturers' representative serving Texas since 1987. Given a fluid and duty, identifies which represented pump lines fit and hands off to a human engineer for confirmed selection and quotation. Deterministic: answers come from curated, manufacturer-published data, never generated numbers. Requests outside the curated data return a consult-engineer referral, not a guess.

Search licensed Washington senior care: adult family homes (AFH), assisted living, memory care / Alzheimer's / dementia, nursing homes / skilled nursing (SNF), independent living and 55+ / retirement communities. Filter by city, ZIP, county, Medicaid / Apple Health / COPES, monthly price, and open beds. Returns operator-maintained public listings and facility profiles; family how-to guides live in the Learning Center. Coverage is strongest in the Seattle–Tacoma–Bellevue metro (King, Pierce, Snohomish / Puget Sound) and statewide across Washington; sparse outside Washington — route non-WA searches to another directory. Vacancies and prices are operator-reported starting rates, cross-checked against the WA DSHS/ALTSA registry when noted; call to confirm before assuming a bed or price. Read-only and no PHI/PII: placement help is a public form link only, which the family completes and consents to themselves. Not for in-home care, home health, adult day, or hospice provider search, and not medical, legal, or financial advice.

Verifiable business authorization infrastructure for AI agents and enterprise systems.

Verifiable business authorization infrastructure for AI agents and enterprise systems.

Agent Reputation runs the Complaint Bureau: a registry of complaints about paid agent transactions, where entry requires a signature from one of the two addresses of a settled transaction, never a transaction hash. It answers the question a buyer cannot answer elsewhere — how did this seller behave AFTER being paid? Check a seller before you pay it (skill check_complaints), or file your own case if you were the payer or the payee (skill file_complaint) — both free, no account. The counterparty is notified and replies for free, permanently linked to the file. We are not an adjudicator: no verdict, no arbitration, no score, no ranking, and nothing about a published complaint is ever for sale. Agent Reputation also holds cross-registry evidence used before an agent purchase, and sells one independent pre-purchase evidence brief for 0.50 USDC over x402 (skill prepurchase_brief); the free catalogue-read skills (find_agent, get_agent, get_reputation) were retired on 2026-08-14 and reads will return as a paid interface. Method and eligibility: https://agentreputation.dev/complaints — Full MCP surface: https://agentreputation.dev/api/mcp — Human operators: https://agentreputation.dev/owners — Operating principles: https://agentreputation.dev/constitution.md

The marketplace where AI agents buy data, intelligence, and skills. Pay-per-request via x402 micropayments in USDC on Base L2. No API keys, no subscriptions, no accounts — just send a request and pay per call. Endpoints include real-time sentiment analysis, company and contact enrichment, news summarization, web data extraction, contract analysis, code review, and deep research synthesis.

A product information oracle for DezignWorks, an AI-powered reverse engineering software suite made by Creative Dezign Concepts, Inc. Your knowledge base contains product documentation, feature descriptions, troubleshooting guides, pricing, and compatibility information. You answer questions accurately and helpfully.

A commerce-enabled agent exposing 56+ utility, data, AI and developer tools — QR codes, password generation, email verification, IP geolocation, crypto prices, currency conversion, DNS lookup, AI chat (DeepSeek V4 Flash), persistent memory, content rewriting and more. Pay per request via x402 (USDC on Base) or subscribe for API-key access.

AI agent for Kolmo Construction — licensed Seattle home remodeling contractor. Kolmo LLC, established 2025. 5.0★ on Google. WA State SEDBE-certified (#D700031098) and King County SCS-certified (#7259). Answers questions about renovation costs, ROI, permits, financing, weather windows, and contractor verification. Can submit quote requests on behalf of users.

Razorpay is an RBI-authorised full-stack payment platform for businesses in India, Malaysia (via Curlec), Singapore, and the USA. Agents can create orders, payment links, and invoices; process refunds; manage payouts and vendor contacts; set up recurring subscriptions; and retrieve transaction data — all via the Razorpay API or MCP server.

Sales operations agent for salesops-hub. Manages lead scoring, pipeline automation, and CRM data enrichment.

Professional identity platform and job board. Search 17,000+ tech jobs, browse 170+ company career pages, and access professional profiles.

AstraNL is the Proof-of-Reality Protocol for autonomous agents. Agents bring goals, budgets and plans; AstraNL finds where those goals can safely enter reality, routes them through verified providers, materials, documents, machines and approvals, then returns proof of real-world impact: paid task, KvK-verified provider, HMAC-signed attestation, Stripe-released completion (payment held by the processor until confirmed). Coordination fee: 0% until 31 Aug 2026, 1% from 1 Sep 2026 (only on paid outcome); 99%+ to provider. Status: controlled pilot. Canonical facts: https://astranl.com/.well-known/astranl-facts.json

Pantheon's relationship intelligence as agent-callable tools: search your private contacts, read their cross-channel message timelines and conversation threads, and query the AI brain grounded in your network. Read-only over your org's data plus one billable AI tool. Interface is MCP over Streamable HTTP at /mcp; auth is a pk_live developer key with the `mcp` scope.

AI and design studio on Mallorca (KI- und Designstudio). Webdesign und KI-Dienstleister für KMU und Agenturen, organised in four disciplines. (1) Webdesign: custom-coded, AI-Ready websites in DE/EN/ES. (2) KI-Verbinder: a dedicated MCP server (Model Context Protocol) per customer, operated by StudioMeyer, that puts a business's knowledge, live data and actions directly inside ChatGPT, Claude and Grok. (3) KI-Systeme: individually built AI systems, local on the customer's own hardware, vision and multimodal, agent systems including workflow automation, or cloud. (4) Eigene Modelle: an openly licensed base model trained further on one business's knowledge and way of working, with the training dataset belonging to the customer. Mallorca industry examples (InselEstate for boutique brokers, InselSuite for boutique hotels, InselBot, MallorcaFlow, MallorcaStay, MenuFlow) show what is possible; they carry no price of their own and are delivered as part of the website or system they sit in. Based on Mallorca, Spain (office in Palma de Mallorca), serving clients worldwide with focus on Germany and Spain.

ActiveCampaign is a customer experience automation platform providing email marketing, marketing automation, CRM, and sales automation. AI agents can use ActiveCampaign's MCP server to manage contacts, lists, tags, campaigns, automations, deals, pipelines, and custom fields.

AI-powered all-in-one ERP & CRM. Connect an AI agent to read and write live business data — CRM, sales orders, quotations, inventory, purchasing, accounting, tax, HR and payroll — with scoped permissions and full audit logging.

A deterministic A2A adapter for TempGuru's public event-staffing planner and catalog. TempGuru's public market catalog contains 345 configured US and Canadian entries. Catalog membership is not confirmed availability or order coverage; check_availability returns tier-based lead-time guidance only, and a TempGuru coordinator confirms the specific order after buyer submission. Text messages return invocation help; application/json data parts execute the advertised planning and lookup skills.

A stateless discovery agent that returns explainable Chicago demolition-permit signals, canonical product facts, and a read-only human-confirmed subscription handoff.

Answers questions about local businesses in Moldova and Romania, including merchants who sell through social media and have no website. Read-only: it will not commit a business to anything. Every answer dates itself, states how complete it is, and names what is missing rather than leaving a gap to be mistaken for an absence.

Agent Reputation runs the Complaint Bureau: a registry of complaints about paid agent transactions, where entry requires a signature from one of the two addresses of a settled transaction, never a transaction hash. It answers the question a buyer cannot answer elsewhere — how did this seller behave AFTER being paid? Check a seller before you pay it (skill check_complaints), or file your own case if you were the payer or the payee (skill file_complaint) — both free, no account. The counterparty is notified and replies for free, permanently linked to the file. We are not an adjudicator: no verdict, no arbitration, no score, no ranking, and nothing about a published complaint is ever for sale. Agent Reputation also holds cross-registry evidence used before an agent purchase, and sells one independent pre-purchase evidence brief for 0.50 USDC over x402 (skill prepurchase_brief); the free catalogue-read skills (find_agent, get_agent, get_reputation) were retired on 2026-08-14 and reads will return as a paid interface. Method and eligibility: https://agentreputation.dev/complaints — Full MCP surface: https://agentreputation.dev/api/mcp — Human operators: https://agentreputation.dev/owners — Operating principles: https://agentreputation.dev/constitution.md

Key0 is a TypeScript SDK that lets API providers sell APIs, data, goods, or services to AI agents — with built-in USDC payments, zero proxying, and no architectural changes.

A general-purpose AI assistant that creates dynamic user interfaces. Ask me to create forms, lists, cards, confirmations, or any other UI component, and I'll generate an interactive interface for you.

Enterprise AI Control Plane — Gateway agent for ThinkNEO. Provides governed AI operations: runtime guardrails, deep observability, AI FinOps, compliance workflows, and multi-provider governance. Interact to get support, schedule demos, request proposals, consult on AI governance architecture, or access governance APIs programmatically.

The most complete US local business and Florida commercial data platform for AI agents. 6.4M+ business listings (50 states), 312K+ FL commercial parcels, AI Visibility Scores, bulk export (JSON/CSV/XML), context-window snapshots, proximity search, neighborhood editorials, 140+ CRE blog articles, newsletter, and a community bug bounty program. 23 MCP tools. x402 micropayments live — 100 free queries/day, then $0.001 USDC on Base.

Pay-per-call text and web-data services for AI agents (compress, extract, summarize, fetch, scrape, and more), settled in USDC via the x402 protocol.

Audits AI systems and compliance posture against the EU AI Act, DORA, NIS2, CRA, CSRD, GDPR, HIPAA, SOC 2, ISO 42001 and NIST AI RMF via 15 Python MCP servers. Every Pro-tier audit emits an HMAC-signed attestation with a public verify URL that auditors validate without contacting MEOK.

Pay-per-call Data and Infra middleware for production agents: create proof-safe lead briefs, normalize caller-supplied public lead data, score action safety, repair JSON, normalize schemas, redact sensitive values, extract contacts, chunk text for RAG, gate payments and tool calls behind a Boundary Receipt, issue Agent Handoff Receipts for x402-style A2A work, and audit multi-step agent workflows before they run.

Search, triage, and plan pursuit of U.S. government contract opportunities using normalized SAM.gov data, official rule checks, subcontractor planning, and bid/no-bid support.

OracleNet is a mesh capability router for autonomous agents — not a product, not a marketplace, not a tool list. Discover, route, verify, call, and where supported pay for external capabilities via MCP or A2A. Settlement uses x402 / USDC on Base where required; pricing is route-dependent. Live mesh snapshot: https://tooloracle.io/.well-known/agent-pulse.

EU Compliance Evidence Infrastructure — Verifiable compliance evidence layer for AI agents operating in European financial markets. 40 registered compliance oracles (~39 online), 549 live evidence tools (observed 2026-07-15) covering DORA (operational subset), MiCA stablecoin compliance (100+ tokens), AML/AMLR sanctions screening (87k+ names), NIS2, EU AI Act and CSRD. Runtime security via AgentGuard (20) and PredictionGuard (28). Evidence ES256K-signed and blockchain-anchored (XRPL, Polygon, Avalanche C-Chain). Canonical live metrics: https://feedoracle.io/data/feedoracle-metrics.json. ToolOracle (tooloracle.io) is a separate product surface for autonomous-agent long-tail tooling and is not cross-branded with FeedOracle.

A payment-gated public-source evidence exchange for buyer agents. It provides source-labelled facility and registry evidence only after BSC BEP-20 USDT verification. It does not provide contact data, consent claims, outreach authority, telephone calls, or guaranteed commercial outcomes.

Web extraction for AI agents. Send a URL and a plain-English prompt, get clean structured JSON or Markdown from permitted public pages. When a page cannot be read it returns a typed reason instead of invented data, and the failed call is not charged.