{"uid":"cap_0kxiT2ysDQHiPF19T_rv9","slug":"agentutility-domain-suggest-09f1ce8b","name":"AgentUtility Domain Suggest","description":"817 pay-per-call APIs for AI agents. Every endpoint is POST /<name> and is payable in USDC over x402 on Base and Solana — no signup, no API key, just pay-per-call. GET https://x402.agentutility.ai/ returns the same catalog as machine-readable JSON.","url":"https://x402.agentutility.ai/domain-suggest?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"required":["concept"],"properties":{"tlds":{"type":"array","description":"TLDs to check, without dots. Default ['com','ai','dev','io','co']. Allowlist: com, ai, dev, io, co, app, xyz, org, net, tech, tools, page, studio, shop. Max 6."},"tone":{"enum":["neutral","playful","technical","luxury","industrial"],"type":"string","description":"Naming tone hint passed to the brainstorm LLM. Default 'neutral'."},"count":{"type":"number","description":"Number of candidates to brainstorm. 1-20. Default 10. Multiplied by tlds.length must stay <= 80 lookups."},"concept":{"type":"string","description":"Plain-language product / project description (1-240 chars). Example: 'graded-card portfolio tracker for collectors' or 'paid AI utility primitives for agents'."}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"concept":{"type":"string"},"candidates":{"type":"array","items":{"type":"object","properties":{"name":{"type":"string"},"slug":{"type":"string"},"rationale":{"type":"string"},"taken_tlds":{"type":"array"},"available_tlds":{"type":"array","items":{"type":"string"}},"available_count":{"type":"integer"},"brandability_score":{"type":"integer"}}}},"tlds_checked":{"type":"array","items":{"type":"string"}},"returned_count":{"type":"integer"}}}}}}},"responseSchema":{"type":"json","example":{"concept":"graded-card portfolio tracker for collectors","candidates":[{"name":"Slabledger","slug":"slabledger","rationale":"Native collector vocab + ledger evokes portfolio tracking.","taken_tlds":[],"available_tlds":["com","ai","dev","io","co"],"available_count":5,"brandability_score":9}],"tlds_checked":["com","ai","dev","io","co"],"returned_count":8}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_mjEArLKbc28GkXB_1u8E7","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Brainstorms brandable domain name candidates for a given concept, then checks availability across specified TLDs","exampleAgentPrompt":"Brainstorm 8 brandable domain names for a 'graded sports card portfolio tracker for collectors', check availability on .com, .ai, and .io, using a neutral tone — give me the ones with the best brandability scores.","exampleUseCases":[{"title":"Startup naming session","prompt":"I'm building a paid AI utility toolkit for developers — brainstorm 10 catchy domain names for it, check .com and .ai availability, and use a technical tone so the names feel developer-friendly."},{"title":"Side project domain hunt","prompt":"I want to launch a meal-planning app for busy parents — can you suggest 6 fun, playful domain names and check if any .com, .app, or .co versions are still available?"},{"title":"Agency rebranding search","prompt":"We're rebranding our luxury interior design studio — suggest 5 premium-sounding domain names with a luxury tone and check availability on .com and .studio."}],"resultDescription":"Returns a list of brainstormed domain name candidates, each with its slug, a human-readable rationale explaining the naming choice, a brandability score (1-10), and arrays of available and taken TLDs — plus a summary of how many candidates were returned and which TLDs were checked.","failureModes":["concept string exceeds 240 characters — returns validation error","count × tlds.length exceeds 80 lookups — returns 400 bad request","unsupported TLD provided (not in allowlist) — returns validation error","LLM brainstorm timeout — may return fewer candidates than requested","all suggested names already taken — returns candidates with empty available_tlds arrays"],"whenToPreferThis":"Use this endpoint when you need both creative name generation AND real-time availability checking in a single call. It's ideal for product naming workflows where you want LLM-powered brandability scoring alongside actual DNS lookup results. Prefer this over generic WHOIS checkers when you need brainstorming rather than checking a specific known name, and over pure LLM prompting when you need verified availability data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-04T12:37:54.828Z","isFirstParty":false,"canonicalSlug":"agentutility-domain-suggest-09f1ce8b"}