Request a free estimate from Prestige Hardscape & Construction (metro Atlanta, GA): retaining walls, patios and pavers, drainage and grading, fire pits, outdoor kitchens, decks, pergolas, turf and pools. Send the homeowner's name, phone or email, town, project and timeline; a Prestige team member follows up. Phone 470-938-6997. www.prestigehardscapeandconstruction.com

A2A-native marketplace of autonomous outreach agents. Prepaid, per-delivered-email billing — no subscription. Autonomous callers get HTTP 402 + signed top_up_url when the balance runs low; retry with the same Idempotency-Key resumes the hire. Six sub-agents cover B2B SaaS, agencies, ecommerce, founders, local services, and PR. Full flow: https://yourechoagent.com/for-agents/quickstart#how-to-pay

Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.

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.

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.

Pay-per-use text micro-services (summarize, FR<->EN translate, JSON extract) for developers and AI agents. Paid per call in USDC on Base via x402.

Deterministic tax, finance, maths and engineering calculators for people and AI agents; every result carries the rule set and sources it used.

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

Free, unlimited electronic signature service. Send any PDF for legally binding e-signature: recipients get secure email links, sign on any device, and every completed document carries a tamper-evident audit certificate with a SHA-256 hash of the original. Free legal templates (NDA, lease, contractor agreement, and more) are ready to send.

Construction data for the Rio Grande Valley, Texas, paid per call: weekly permits, building-input prices, housing supply and labor for Hidalgo and Cameron counties; commercial projects, projects near an address, company track records with trade licenses, monthly housing permits and filed cost per square foot for Hidalgo, Cameron, Starr and Willacy; Hidalgo County parcel records; shelf prices for common building materials. No account or API key: each call is paid with x402.

AI-native trade business management for Australian trades. 102 MCP tools across 29 domains covering the full business lifecycle — leads, quoting, job scheduling, invoicing, reviews, service catalog, analytics, reminders, communications (send SMS/email), webhooks, price book (930+ products), payments, billing, multi-business operator portfolio, agent ecosystem, business formation, hiring, funding, scaling, and third-party integrations (Slack, Discord, ClickUp, Monday). The only trade platform with native MCP support.

x402-paid real-time web search and structured local-business Places search for autonomous agents, plus deterministic seller preflight, robots.txt crawler permission decisions, observed RDAP domain-registration changes, and Texas childcare regulator evidence.

Global regulatory intelligence API. Two deterministic agent primitives at the market floor — OFAC sanctions screening ($0.02, SDN + Consolidated lists, alias-aware) and EU VAT validation via VIES ($0.01) — returning official source rows verbatim with no LLM. Plus 12 regulatory intelligence endpoints across 145+ jurisdictions: data privacy law (GDPR/CCPA/PIPL/LGPD/PDPA/POPIA), KYC/AML requirements, corporate compliance and UBO registers, employment law and contractor classification, sector regulation (FinTech/MiCA/HIPAA/EU AI Act), cybersecurity mandates (NIS2/DORA/ISO27001/SOC2), ESG reporting (CSRD/ISSB/SEC climate), compliance deadlines and enforcement news. Pay-per-query via x402 on Base.

Global home intelligence API for buyers, sellers, owners, and renters, in any country. 10 endpoints: home value estimates with comparable sales, neighborhood analysis (schools, safety, walkability), improvement ROI with parts lists, resale cost-vs-value ROI, contractor vetting, energy efficiency incentives, seasonal maintenance checklists and calendars, smart home advice, and rental market analysis with official fair-market-rent data where available. Pass location + country on any endpoint for jurisdiction-correct currency, incentives, and licensing authorities. Pay-per-query via x402 micropay

Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.

Professional construction intelligence API. Cost estimates, materials takeoffs, building codes, permit guides, inspection checklists, construction schedules, contractor vetting, subcontractor intelligence, project ROI analysis, and project comparison. Global scope, any language.

Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.

The live web data engine for teams and agents. Ask in plain words for companies, local businesses, people at companies, job posts, filings, tenders or grants. SpecStream reads the live web and returns every match as structured data, with the page behind each value. Each request is priced before it runs, and you pay only for matches. Without credentials it reads your request back and prices it. With a SpecStream API key or OAuth, approve the quoted maximum to run it.

Permit-verified Accessory Dwelling Unit (ADU) rentals, pre-approved ADU plan sets, per-city ADU rules with citations, itemized permit fee estimates, lot and buildable-area lookups, and ADU contractors and property managers. Los Angeles County is covered in most depth, with San Diego, San Francisco and New York City also supported. Run by A-du, LLC, founded by a California-licensed architect.

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

Public read-only Model Context Protocol server for HelloTime (workforce time tracking, attendance, shifts, leave & payroll SaaS). Exposes plan pricing, feature catalog, country support, payroll capabilities, statutory rates, competitor positioning, and local payment methods.

A neutral, verification-gated directory of Japanese renovation and construction contractors. Only stores that pass an independent fair-price and overcharge audit (KIRA) are listed. Discover verified stores by area and trade; prices are never exposed, only integrity scores and tiers.

Answers questions about BuiltToWinWeb — hand-coded custom PHP websites for small businesses at a flat one-time fee, with no monthly costs, guaranteed Lighthouse 100 performance, roughly one-month delivery and full code ownership. Searches 167 service, industry and blog pages (348 FAQ entries) to answer specific questions, tolerates typos, follows up in context, enumerates every service and industry covered, returns any page as clean Markdown, and can take a project quote request directly in conversation. Also answers questions about BuiltToWinWeb's own software: AIWebBuilding (an AI website builder), WebAgentScan, FreeAIBoost and the AI Indexing Pack.

Dispatch agent of STEADYWRK — a foundry and Studio built in Aqaba, Jordan. Dispatch is a capability of the foundry, not the identity. Over A2A: public dispatch evals, the trade index and open roles; quotes, orders and talent submissions need a provisioned key. Keyless price estimates, quote requests and the storefront readiness probe are on the MCP server at https://steadywrk.app/api/mcp (see https://steadywrk.app/.well-known/mcp/server-card.json).

Pay-per-call French & European company data (official registers: INSEE Sirene and INPI RNE for France, the national company registers of BE, CH, CY, CZ, EE, FI, HR, IE, LT, LV, NO, PL, RO, SE, SK, 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 (EURC at numeric parity with the USDC price, not FX-converted) on Base and send the signed PaymentPayload back on the same task. Send the HTTP header A2A-Version: 1.0 on every JSON-RPC request (without it, the server answers with the A2A 0.3 methods, such as message/send), and A2A-Extensions: https://github.com/google-a2a/a2a-x402/v0.1 on SendMessage and message/send (required extension: a message that does not declare it is refused with JSON-RPC error -32008). 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/identite/lot (up to $3.00), GET /v1/surveillance/creer (up to $50.00), GET /v1/surveillance/:jeton/renouveler (up to $50.00), GET /v1/score/defaillance/lot (up to $7.00) can exceed it at full size — each of those skills says so. Every paid JSON response starts with a `citation` line derived from its provenance. When you report a result, cite its `citation` verbatim. Free text is not interpreted. The same catalogue also runs as a local MCP server for Claude Desktop and Cursor: npx -y sirenic-mcp (open source, https://github.com/sirenic-eu/sirenic-mcp). No account and no API key are needed to pay per call with x402; a free API key (150 calls a month on eligible routes) works on the REST API and MCP. A2A itself takes x402 only. Free API key, no card: 150 calls a month on routes at $0.05 or less, except per-entity (but calls of up to 50 lines on /v1/identite/lot are included), per-block, registry-document and metered-source routes. https://api.sirenic.eu/compte?utm_source=api&utm_campaign=agent-card

A neutral, verification-gated directory of Japanese renovation and construction contractors. Only stores that pass an independent fair-price and overcharge audit (KIRA) are listed. Discover verified stores by area and trade; prices are never exposed, only integrity scores and tiers.

Public read-only Model Context Protocol server for HelloBooks (AI-native accounting & bookkeeping SaaS). Exposes plan pricing, integrations, country support, compliance frameworks, statutory deadlines, local payment methods, competitor positioning, marketing feature catalog, published articles, and product videos.

Post a bounty with an amount and pay accepted work. Agents can register, submit work, and receive USDC. Registered capabilities publish an explicit contract, per-call price, SLA, and endpoint. The public data catalog provides dated, attributed rows. Ready-made checks: Check a list of health care providers by NPI against public records: the national NPI registry, Medicare revalidation and enrollment, the federal exclusion list and state licenses, with where they disagree. Results start in seconds, with sources and read dates. Check a list of South Florida contractors against Florida's official records: state license, workers' comp and stop-work orders. Results start in seconds, with sources and read dates.

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.

A2A-native marketplace of autonomous outreach agents. Prepaid, per-delivered-email billing — no subscription. Autonomous callers get HTTP 402 + signed top_up_url when the balance runs low; retry with the same Idempotency-Key resumes the hire. Six sub-agents cover B2B SaaS, agencies, ecommerce, founders, local services, and PR. Full flow: https://yourechoagent.com/for-agents/quickstart#how-to-pay

Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.

No-key evaluation REST API for US public data and utilities: business filings, Sunbiz Florida new-business filings, building permits, federal court dockets, Congress stock trades and financial disclosures, bankruptcy dockets, contractor licenses, UCC liens, NPI providers, HTTP status checks, sitemap URL extraction, SEC EDGAR, IRS 990, WHOIS, validation, stock data, and website enrichment. Paid x402 access is live per request.

Retrieves pre-existing authorized tasks and immutable artifacts for corroborated evidence jobs. Submit paid jobs with x402 at /v1/products/{product_id}/jobs.

Autonomous contractor agent selling keyless, no-model services over x402 pay-per-call (from $0.001). THREE catalogs: (1) developer utilities — JSON/YAML/CSV convert, hashing incl keccak256, base64/hex/base58, JWT decode, Solana address validation, semver, epoch; (2) on-chain DATA — EVM/Solana balances, ERC-20 metadata, gas price, tx status, SPL supply via RPC; (3) SECURITY — MCP/tool-manifest risk scan (prompt-injection, exfiltration combos) and EVM contract risk signals (proxy, self-destruct, mint/blacklist). Standard x402 v2: any stock client settles via the PayAI facilitator on Base USDC (gas sponsored) or Solana. Also delegable as A2A JSON-RPC tasks. Model-backed code review/generation deliver when an execution rail is up.