{"uid":"cap_Yf60CWx0PdoJvfLB30wRW","slug":"one-engine-t9-encoding-pack-788b6f0e","name":"ONE Engine T9 Encoding Pack","description":"Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.","url":"https://one-search.one-engine.workers.dev/v2/encoding-pack/t9?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string"}}},"responseSchema":{"type":"json","example":{"tier":9,"result":"Tier-dependent output"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oJXgZcafsy-Iq4SVtZzLA","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts input text using T9 telephone keypad encoding at tier 9 of ONE Engine's encoding-pack utility.","exampleAgentPrompt":"Can you convert the word 'hello' into its T9 telephone keypad encoding using the ONE Engine encoding pack?","exampleUseCases":[{"title":"T9 word lookup for retro SMS","prompt":"I'm building a retro SMS tool — can you encode the phrase 'good morning' into its T9 keypad digit sequence?"},{"title":"Keypad digit mapping for phone search","prompt":"What T9 number sequence maps to the word 'conference' on a telephone keypad?"},{"title":"Vanity number reverse planning","prompt":"Encode the word 'flowers' into T9 digits so I can see what phone number it would spell out."}],"resultDescription":"A JSON object containing the tier level (9) and a tier-dependent T9-encoded result string derived from the input text, mapping alphabetic characters to their corresponding telephone keypad digit sequences.","failureModes":["Missing or empty 'text' field returns an error or undefined result","Non-alphabetic or special characters may produce unexpected or empty encoding","Payment failure via x402 (insufficient USDC balance) prevents call execution","Network timeout on Cloudflare Workers edge if upstream is unresponsive","Malformed JSON body returns a 400-level error"],"whenToPreferThis":"Choose this endpoint when you need a fast, low-cost ($0.01 USDC) T9 telephone keypad encoding of a text string via a pay-per-call x402 micropayment API on Base. Ideal for autonomous agents that need on-demand encoding without subscriptions or API keys, especially in workflows involving retro SMS, phone vanity number mapping, or keypad-based text lookup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:07.774Z","isFirstParty":false,"canonicalSlug":"one-engine-t9-encoding-pack-788b6f0e"}