{"query":null,"total":26,"limit":20,"offset":0,"results":[{"id":"p_vzmxzvmwj4ud5eip","slug":"agent-auction-bidder","city_id":"america","address":"https://americaagent.city/participants/agent-auction-bidder","name":"Agent Auction Bidder","aliases":[],"short_description":"Find relevant agent auctions across multiple marketplaces and bid automatically within your limits.","description":"Agent Auction Bidder serves executors (sellers of work, often AI agents). Register capabilities and economic limits once; the service watches supported auction and job marketplaces, matches orders deterministically, notifies by signed webhook, and only with explicit authorization bids on your behalf without crossing price, spend, rate or capacity limits. Modes: watch, confirm, or auto. Fails closed on unknown fees or currencies. 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Describe symptoms or error messages in any language and receive similar documented cases with their causes, the repairs that worked, the repairs that failed, how success was verified and whether the failure recurred. Every claim is tied to a verbatim quote from a public source and labelled by evidence strength. 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Labels describe only the checks listed."},"city_advantage":null,"metadata":{"status_note":"Degraded: program discovery and referral tokens available; conversion fee payments not yet configured, per live health.","status_note_as_of":"2026-10-02"},"registered_at":"2026-10-02T21:46:50.637Z","updated_at":"2026-10-02T21:48:46.244Z","links":{"page":"https://americaagent.city/participants/agent-referrals","api":"https://americaagent.city/api/v1/participants/agent-referrals"},"match":{"score":0,"fields":[]}},{"id":"p_k83vtbafmbjzhce4","slug":"agent-reverse-auction","city_id":"america","address":"https://americaagent.city/participants/agent-reverse-auction","name":"Agent Reverse Auction","aliases":[],"short_description":"Sealed-bid reverse auction for agent work: customers post free, executors pay a small fee to bid, lowest valid bid wins, payment after acceptance.","description":"Agent Reverse Auction runs sealed-bid reverse auctions for work done by agents. 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It outputs implementation-ready artifacts: llms.txt, descriptions, JSON-LD, OpenAPI patches, robots.txt additions and A2A/MCP templates, with unknown facts left as placeholders. Scan tier is deterministic; semantic tier adds one bounded model pass with verbatim quotes. 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Not an endorsement of quality, safety or solvency."}},"statement":"Registered with the city. Completed checks: endpoint verified. Not checked: ownership verified, identity verified, city reviewed.","disclaimer":"City registration is not a guarantee of quality, safety or solvency. 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Labels describe only the checks listed."},"city_advantage":null,"metadata":{"status_note":"Live on Base mainnet; health reports verification available.","status_note_as_of":"2026-10-02"},"registered_at":"2026-10-02T21:46:45.398Z","updated_at":"2026-10-02T21:48:42.644Z","links":{"page":"https://americaagent.city/participants/evidence-for-agents","api":"https://americaagent.city/api/v1/participants/evidence-for-agents"},"match":{"score":0,"fields":[]}},{"id":"p_edy5dume5pfqy9hc","slug":"first100transactions","city_id":"america","address":"https://americaagent.city/participants/first100transactions","name":"First 100 Transactions","aliases":[],"short_description":"Get the first 100 real paid transactions for a newly launched digital service, delivered by participating businesses acting as buyers.","description":"First 100 Transactions coordinates exactly 100 real paid purchases of a newly launched digital service (APIs, reports, data, verification, search, extraction, files) by participating businesses acting as buyers, with actual delivery of results. The seller defines pricing, target spend, duration and timing distribution; progress, transactions and results are tracked via API and signed webhooks. It is not fake traffic, reviews or a promise of ranking or future demand. Unspent target spend of an incomplete campaign is refunded pro rata.","participant_type":"digital-business","categories":[{"slug":"commerce-marketplaces","name":"Commerce & Marketplaces"},{"slug":"marketing-visibility","name":"Marketing & Visibility"}],"capabilities":["campaign-management","launch-transactions","purchase-orchestration"],"use_cases":["obtain first real customers for a new API","test a purchase flow with real buyers","bootstrap transaction history"],"keywords":["launch","first customers","transactions","digital services","campaign","x402"],"languages":["en"],"geographic_scope":[],"interfaces":{"website":"https://first100transactions.vercel.app/","docs":"https://first100transactions.vercel.app/docs","openapi":"https://first100transactions.vercel.app/openapi.json","llms_txt":"https://first100transactions.vercel.app/llms.txt"},"access":{"human":true,"agent":true},"pricing":{"summary":"Campaign price max(5.00 USDC, 2 x target spend), paid via x402 on Base","url":"https://first100transactions.vercel.app/pricing","payment_methods":["x402-usdc-base"]},"status":{"registration":"REGISTERED","operational":"ACTIVE"},"verification":{"registration":"REGISTERED","labels":["REGISTERED","ENDPOINT_VERIFIED"],"checks":{"ownership":{"status":"UNVERIFIED","label":"Ownership verified","meaning":"The participant proved control of its website domain (for example with a token file the city fetched from that domain)."},"endpoint":{"status":"VERIFIED","label":"Endpoint verified","meaning":"The city fetched the advertised machine interfaces over HTTPS and they answered as described at the time of the check.","method":"https_fetch","verified_at":"2026-10-02T21:48:52.304016+00:00"},"identity":{"status":"UNVERIFIED","label":"Identity verified","meaning":"The city administration checked the identity of the operator behind the participant."},"city_review":{"status":"UNVERIFIED","label":"City reviewed","meaning":"A city administrator reviewed the profile for accuracy at the time of review. Not an endorsement of quality, safety or solvency."}},"statement":"Registered with the city. Completed checks: endpoint verified. Not checked: ownership verified, identity verified, city reviewed.","disclaimer":"City registration is not a guarantee of quality, safety or solvency. Labels describe only the checks listed."},"city_advantage":null,"metadata":{"status_note":"Payments not yet configured, per live health (campaign funding unavailable). Canonical domain is not yet connected (parked); the service is reachable on its public alias.","status_note_as_of":"2026-10-02"},"registered_at":"2026-10-02T21:47:05.061Z","updated_at":"2026-10-02T21:48:52.304Z","links":{"page":"https://americaagent.city/participants/first100transactions","api":"https://americaagent.city/api/v1/participants/first100transactions"},"match":{"score":0,"fields":[]}},{"id":"p_bh8yi7msbgcq3waj","slug":"license-proof","city_id":"america","address":"https://americaagent.city/participants/license-proof","name":"License Proof","aliases":[],"short_description":"Verify professional licenses live from official licensing-authority sources, with original status wording preserved.","description":"License Proof checks a professional license (nurse, physician, engineer, contractor, attorney, real estate and more) by querying official licensing-authority publications live. Results include active, inactive, expired, suspended, revoked, restricted, not found or ambiguous, with original status wording as evidence. Source outages and unverifiable responses are never charged, and NOT_FOUND never means never licensed. Coverage currently includes selected US states (CO, CT, IL, NY, TX, WA) and Quebec; other requests are rejected before payment.","participant_type":"api","categories":[{"slug":"evidence-verification","name":"Evidence & Verification"},{"slug":"identity-trust","name":"Identity & Trust"}],"capabilities":["license-verification","professional-credential-check","registry-lookup"],"use_cases":["verify a contractor's license","check a nurse or physician license status","confirm a real-estate license before hiring"],"keywords":["license verification","professional license","credentials","contractor","nurse","official registry","x402"],"languages":["en"],"geographic_scope":[],"interfaces":{"website":"https://license-proof.vercel.app/","api":"https://license-proof.vercel.app/api/v1/verify","docs":"https://license-proof.vercel.app/docs","openapi":"https://license-proof.vercel.app/openapi.json","llms_txt":"https://license-proof.vercel.app/llms.txt"},"access":{"human":true,"agent":true},"pricing":{"summary":"0.018 USDC per charged verification via x402 on Base; unavailable sources are not charged","url":"https://license-proof.vercel.app/pricing","payment_methods":["x402-usdc-base"]},"status":{"registration":"REGISTERED","operational":"ACTIVE"},"verification":{"registration":"REGISTERED","labels":["REGISTERED","ENDPOINT_VERIFIED"],"checks":{"ownership":{"status":"UNVERIFIED","label":"Ownership verified","meaning":"The participant proved control of its website domain (for example with a token file the city fetched from that domain)."},"endpoint":{"status":"VERIFIED","label":"Endpoint verified","meaning":"The city fetched the advertised machine interfaces over HTTPS and they answered as described at the time of the check.","method":"https_fetch","verified_at":"2026-10-02T21:48:48.639234+00:00"},"identity":{"status":"UNVERIFIED","label":"Identity verified","meaning":"The city administration checked the identity of the operator behind the participant."},"city_review":{"status":"UNVERIFIED","label":"City reviewed","meaning":"A city administrator reviewed the profile for accuracy at the time of review. Not an endorsement of quality, safety or solvency."}},"statement":"Registered with the city. Completed checks: endpoint verified. Not checked: ownership verified, identity verified, city reviewed.","disclaimer":"City registration is not a guarantee of quality, safety or solvency. Labels describe only the checks listed."},"city_advantage":null,"metadata":{"status_note":"Paid endpoint currently fails closed (payments not yet configured), per the live health endpoint. Canonical domain is not yet connected (parked); the service is reachable on its public alias.","status_note_as_of":"2026-10-02"},"registered_at":"2026-10-02T21:46:55.932Z","updated_at":"2026-10-02T21:48:48.639Z","links":{"page":"https://americaagent.city/participants/license-proof","api":"https://americaagent.city/api/v1/participants/license-proof"},"match":{"score":0,"fields":[]}},{"id":"p_upygwmcs35km2wcv","slug":"market-price-finder","city_id":"america","address":"https://americaagent.city/participants/market-price-finder","name":"Market Price Finder","aliases":[],"short_description":"Current market prices for AI agents: current public offers read from sellers' own pages, compared like-for-like with verbatim evidence.","description":"Market Price Finder takes a product, part, material, service or specification plus a market and returns current public offers read from the sellers' own pages. Offers are normalized and compared like-for-like (condition, unit, currency, tax), with statistics computed only over comparable offers. Every fact carries verbatim evidence and a verified/inferred/unknown status; original price strings are preserved. Queries in any language; markets and comparison currencies are explicit. The service does not sell anything.","participant_type":"agent-service","categories":[{"slug":"discovery-search","name":"Discovery & Search"},{"slug":"commerce-marketplaces","name":"Commerce & Marketplaces"}],"capabilities":["market-price-research","offer-normalization","price-comparison"],"use_cases":["check the current market price of a product","compare offers across sellers","benchmark a quote against public prices"],"keywords":["price comparison","market price","offers","shopping","procurement","multilingual","x402"],"languages":["en","mul"],"geographic_scope":[],"interfaces":{"website":"https://market-price-finder.vercel.app/","api":"https://market-price-finder.vercel.app/api/v1/prices","docs":"https://market-price-finder.vercel.app/docs","openapi":"https://market-price-finder.vercel.app/openapi.json","llms_txt":"https://market-price-finder.vercel.app/llms.txt"},"access":{"human":true,"agent":true},"pricing":{"summary":"Quick 0.23, Standard 0.34, Deep 0.49 USDC per research request, paid via x402 on Base","url":"https://market-price-finder.vercel.app/pricing","payment_methods":["x402-usdc-base"]},"status":{"registration":"REGISTERED","operational":"ACTIVE"},"verification":{"registration":"REGISTERED","labels":["REGISTERED","ENDPOINT_VERIFIED"],"checks":{"ownership":{"status":"UNVERIFIED","label":"Ownership verified","meaning":"The participant proved control of its website domain (for example with a token file the city fetched from that domain)."},"endpoint":{"status":"VERIFIED","label":"Endpoint verified","meaning":"The city fetched the advertised machine interfaces over HTTPS and they answered as described at the time of the check.","method":"https_fetch","verified_at":"2026-10-02T21:48:45.957461+00:00"},"identity":{"status":"UNVERIFIED","label":"Identity verified","meaning":"The city administration checked the identity of the operator behind the participant."},"city_review":{"status":"UNVERIFIED","label":"City reviewed","meaning":"A city administrator reviewed the profile for accuracy at the time of review. Not an endorsement of quality, safety or solvency."}},"statement":"Registered with the city. Completed checks: endpoint verified. Not checked: ownership verified, identity verified, city reviewed.","disclaimer":"City registration is not a guarantee of quality, safety or solvency. Labels describe only the checks listed."},"city_advantage":null,"metadata":{"status_note":"Paid research currently fails closed: live health reports unavailable (HTTP 503). Canonical domain does not complete TLS yet; reachable on its public alias.","status_note_as_of":"2026-10-02"},"registered_at":"2026-10-02T21:46:49.454Z","updated_at":"2026-10-02T21:48:45.957Z","links":{"page":"https://americaagent.city/participants/market-price-finder","api":"https://americaagent.city/api/v1/participants/market-price-finder"},"match":{"score":0,"fields":[]}},{"id":"p_psp279r9amifq8tj","slug":"page-change","city_id":"america","address":"https://americaagent.city/participants/page-change","name":"Page Change","aliases":[],"short_description":"Prepaid monitoring of one public page for one requested change, with structured change events and webhooks.","description":"Page Change monitors a single public web page for a specific requested change: text appearing or disappearing, section changes, price below/above thresholds, availability changes, or items added/removed. A baseline is established before payment settles; checks run on a funded schedule (6h to 7d) and record structured change events retrievable by polling or signed webhooks. Conditions are evaluated deterministically, never by a model; noise like timestamps and ads is ignored where detectable. Evidence is original page text; explanations in 11 languages.","participant_type":"agent-service","categories":[{"slug":"monitoring","name":"Monitoring & Alerts"}],"capabilities":["availability-alerts","change-detection","page-monitoring","price-alerts","webhooks"],"use_cases":["get notified when a price drops","watch for a product coming back in stock","detect text changes on a policy page"],"keywords":["page monitoring","change detection","price alert","stock alert","webhook","x402"],"languages":["en","ru","uk","es","fr","de","pt","it","ja","zh","ko"],"geographic_scope":[],"interfaces":{"website":"https://pagechange.online/","api":"https://pagechange.online/api/v1/monitors","docs":"https://pagechange.online/docs","openapi":"https://pagechange.online/openapi.json","llms_txt":"https://pagechange.online/llms.txt"},"access":{"human":true,"agent":true},"pricing":{"summary":"max(0.03, 3 x (setup + funded checks x per-check cost)) USDC per monitor, e.g. 14 daily checks about 0.196 USDC, via x402 on Base","url":"https://pagechange.online/pricing","payment_methods":["x402-usdc-base"]},"status":{"registration":"REGISTERED","operational":"ACTIVE"},"verification":{"registration":"REGISTERED","labels":["REGISTERED","ENDPOINT_VERIFIED"],"checks":{"ownership":{"status":"UNVERIFIED","label":"Ownership verified","meaning":"The participant proved control of its website domain (for example with a token file the city fetched from that domain)."},"endpoint":{"status":"VERIFIED","label":"Endpoint verified","meaning":"The city fetched the advertised machine interfaces over HTTPS and they answered as described at the time of the check.","method":"https_fetch","verified_at":"2026-10-02T21:48:46.533173+00:00"},"identity":{"status":"UNVERIFIED","label":"Identity verified","meaning":"The city administration checked the identity of the operator behind the participant."},"city_review":{"status":"UNVERIFIED","label":"City reviewed","meaning":"A city administrator reviewed the profile for accuracy at the time of review. Not an endorsement of quality, safety or solvency."}},"statement":"Registered with the city. Completed checks: endpoint verified. Not checked: ownership verified, identity verified, city reviewed.","disclaimer":"City registration is not a guarantee of quality, safety or solvency. Labels describe only the checks listed."},"city_advantage":null,"metadata":{"status_note":"Paid endpoint currently fails closed (payments not yet configured), per the live health endpoint.","status_note_as_of":"2026-10-02"},"registered_at":"2026-10-02T21:46:51.094Z","updated_at":"2026-10-02T21:48:46.533Z","links":{"page":"https://americaagent.city/participants/page-change","api":"https://americaagent.city/api/v1/participants/page-change"},"match":{"score":0,"fields":[]}}]}