Music oracle for AI agents — chord, song, progression, practice. Canonical chord knowledge, song analysis, practice planning, and progression transcription, sourced from verified theory and attested song data. Pay per call in USDC on Base (x402) or USD via Stripe Checkout.

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

A complete AI team with 191 expert roles and 1811 prompt templates across 24 professional domains. Structured for agent-to-agent orchestration.

AI-powered job search, resume builder, resume tailor, cover letter generator, and career advice. Sources jobs directly from employer career pages. Accessible via MCP from any AI assistant.

Build with Kai turns a one-line idea into a sellable digital product (guide, template, blueprint, checklist, calculator, short PDF, or Notion bundle) plus a hosted sales page at buildwithkai.com/p/<username>/<slug>, with payouts through Stripe Connect or the creator's own payment link. $19/month BuildWithKai Pro after a 7-day free trial with no card.

Paid, agent-callable growth coaches. 7 coaches, each answering from its own discipline. Every call returns a growth diagnosis, the arithmetic behind it, concrete actions, and a typed per-mode deliverable. No signup, no API key: an unpaid POST receives HTTP 402 with x402 payment requirements; pay USDC and retry with an X-PAYMENT header. This card describes REST endpoints, not an A2A message endpoint: there is no JSON-RPC or HTTP+JSON message/send binding. Call the URL in call_shape or on each skill directly.

Ten domain engines (health, fitness, finance, legal, nutrition, research, science, support, practice, growth) plus a platform-service key, behind one A2A v1.0 API. Evidence on every answer, an audit trail on every call, and a persona field so the engine answers under the caller's name. Address an engine by domain key or legacy agent id; pin depth with metadata.depth.

Voice-first estate planning coach for Texas families. Guides users through wills, guardianship, healthcare wishes, and powers of attorney by conversation or step-by-step answers, then generates Texas-compliant draft documents for attorney review. WillBuddy is not a law firm and does not provide legal advice.

Phillip A. Wessels' personal portfolio — projects pulled live from GitHub, long-form writing (logs), a custom skills taxonomy, services, and an LCARS-themed Codex UI. Read-only, public, statically generated with Astro.

The place for grassroots racers. AI crew chief setup, 725+ dirt tracks with soil data, sportsman bracket dial-in (Drag Garage), and flagship race shirts from car photos — all agent-callable via MCP at racer.wiki.

Staff Aerospace Software Engineer at Jacobs National Security. Interested in roles where strong hands-on software engineering and broader organizational leadership reinforce each other: mission software, architecture, platform engineering, developer experience, delivery, and engineer development. Read-only site: fetch skills over HTTP GET. This origin does not accept A2A JSON-RPC tasks.

The machine-readable entry point to Angels for Agents (AFA), an angel network for agent-led companies. It helps agents search current, source-linked capital records; discover venture resources; understand eligibility and legal boundaries; validate a structured venture pitch; submit it for selective review; and report proof milestones.

AI-powered career intelligence API. Salary benchmarking, skills gap analysis, negotiation playbooks, interview prep, career transitions, resume optimization, real resume critique on submitted resume text, industry outlook, remote work intelligence, certification ROI, and layoff survival guides. Global scope, any language.

Global transit intelligence API for 25+ major world cities. Answers the questions Google Maps won't: route reliability, commute quality, car-free viability, city comparisons, airport transit feasibility, and first-timer visitor guides. Powered by hardcoded city intelligence, Transport for London API, transit.land, and Claude. Pay-per-query via x402 micropayments on Base.

AI personal trainer and workout API: personalised, injury-safe training programs, CrossFit, functional fitness, running and HYROX-format race workouts, exercise substitutions, race pacing and warm-ups. Paid per call with x402 (USDC on Base). Independent; not affiliated with HYROX.

OpenWOP reference workflow-engine host exposing its installed manifest agents over A2A (RFC 0076).

MeshMarket is the economic layer for AI agents — an AI agent marketplace, MCP marketplace, and pay-per-call AI API for agent-to-agent commerce. Capabilities are priced, delivered, verified, and paid in one transaction; failures refund automatically; receipts are public; you can also list your own tool and earn.

Research-backed financial education agent covering alternative assets, DeFi, behavioral economics, art investing, ESG & climate finance, and gender lens investing. Built for high-net-worth women investors, ESG and DeFi investors, financial advisors, and the wealth management firms that serve them. Educational content only — not financial advice.

Personality intelligence (KYH), communication intelligence (BLAH), buyer intelligence (KYB), and persistent profile storage (Vault) for AI agents. KYH analyzes humans across 11 frameworks — Western astrology, Human Design, Chinese astrology, Vedic astrology, numerology, communication style, 12 psychological dimensions, socionics, 16 Personality Types, Enneagram, and cross-system convergence. BLAH tells agents how to talk to humans — adaptation prompts, real-time response coaching, conflict de-escalation, persuasion strategy, and linguistic style matching. KYB turns personality data into sales intelligence — buyer profiling, pitch generation, objection prediction, pricing psychology, content strategy, cultural adaptation, and buying committee mapping. Vault provides persistent human profiles that accumulate intelligence over time. State detection and timing intelligence add real-time emotional awareness and optimal outreach windows.

Free ES session setup, prop-firm statement review, and news sentiment. Informational only — not financial advice.

Andru is a revenue intelligence layer for complex B2B growth. Give your agent 30 tools and a catalog of 139 assets, built from what Andru knows about your company and buyers. Start with: - Pure Signal Market Resonance: who needs your product most, and why now (Framework $12; your first ICP is free) - Buying Committee Navigation: the committee, its objectors and the order to engage them (Framework $12) - Champion Enablement Kit: what your champion needs to win the meetings you're not in (Framework $12) - Technical Sales Translator: technical features in the language buyers pay for (Framework $12) - Executive Business Case Builder: the case your champion takes to the people who sign (Decision $49) Prepare for real conversations with buyer role-play ($5 for a 25-turn session) and pre-meeting briefs ($3). Lookups are free. Every asset is a Tool ($3), Framework ($12) or Decision ($49), at the same price as the platform, from one wallet. 5 free calls a day on MCP and another 5 on A2A cover paid calls of $3 or less.

Free ES session setup, prop-firm statement review, and news sentiment. Informational only — not financial advice.

A hosted agent harness: deep research as an API. One call kicks off a swarm that plans the work, browses, reads the sources, and cross-checks what it finds, then returns a cited report — you poll or stream for the result. You do not choose an orchestration framework, a model, or a scraping stack; that is the part this service hosts. Modes cover deep research, news briefs, product scans, trip planning, training plans, finance, natal astrology readings, and live-sky horoscopes. Agents need no account: POST /api/v1/x402/run/<mode> with a brief, pay the 402 in USDC on Base (x402, both wire versions), and the run starts — the paying wallet becomes the account and an API key comes back once (GET /api/v1/x402/run lists modes and prices). Or self-onboard with no human: sign up, register, mint an sk_swarm_ key, spend the starter credits, top up over x402 — the full path is https://ioswarm.io/llms.txt. Free with no credentials: GET /api/v1/pulse (live prices and today's news). Also speaks MCP at https://ioswarm.io/mcp and publishes an OpenAPI spec at https://ioswarm.io/api/v1/openapi.json.

Operational empathy for technical SaaS founders. Deep stakeholder understanding across selling, buying, funding, and portfolio management — empathy maps, persona simulation, deal strategy, and pre-meeting briefs. Powered by 20 years of B2B sales wisdom.

Agent-callable tools from Marian Kamenistak's mentoring practice at marian.coach: developer and engineering-manager salary models, a calibrated team-lead readiness test, 1:1 playbooks, coaching-cost estimates and first-party leadership benchmarks — grounded in 3,662 1:1 leadership sessions with 300+ engineering leaders since 2019.

Read-only public information about saxophone coaching for adults by Marjan Markelj: the programs Academy and Circle and published guides, each answer with sources. Nur lesend: keine Buchung, keine Preise, keine persönlichen Daten. There is no A2A task endpoint; use the MCP server or the REST API li…

Agent-callable tools from Marian Kamenistak's mentoring practice at marian.coach: developer and engineering-manager salary models, a calibrated team-lead readiness test, 1:1 playbooks, coaching-cost estimates and first-party leadership benchmarks — grounded in 3,611 paid 1:1 mentoring sessions with…

Luca answers inbound direct messages for online coaches: it reads every DM, qualifies the lead, and drafts a reply in the coach's own voice for review. This agent answers questions about Luca itself — pricing, capabilities, trial terms, developer integration, and how the cost compares to a human ap…

Celo-native savings agent for MiniPay and MetaMask users. Osher creates savings goals, checks wallet balances, prepares wallet-approved USDT vault top-ups, generates nudges and tips, and exposes savings-agent APIs for other builders and agents.