{"uid":"cap__5ydQRWVXEbDlhG4azEhV","slug":"one-engine-text-t9-character-counter-ef711095","name":"ONE Engine Text T9 Character Counter","description":"Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.","url":"https://one-search.one-engine.workers.dev/v3/text-token/characters/t9?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["text"],"properties":{"text":{"type":"string","description":"Text up to 50000 characters"}}},"responseSchema":{"type":"object","additionalProperties":true},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.018","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":"$0.018/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.018","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.018","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_UywvtkDgF9rZoGhcw3ZOq","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.018","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Counts characters in text using T9-style tokenization, returning character-level token counts for input text up to 50,000 characters.","exampleAgentPrompt":"Count the characters in this text for me: 'The quick brown fox jumps over the lazy dog. This sentence needs to be measured precisely before I submit it.'","exampleUseCases":[{"title":"Pre-submission character limit check","prompt":"Before I submit this product description to the marketplace, count the characters to make sure it fits within their 500-character limit: 'Our premium ergonomic chair features lumbar support, breathable mesh back, and adjustable armrests for all-day comfort at the office.'"},{"title":"SMS message length validation","prompt":"I need to know the character count for this SMS draft so I know how many message segments it will use: 'Hey! Just a reminder that your appointment is scheduled for tomorrow at 3pm. Please reply YES to confirm or call us at 555-0192 to reschedule. Thanks!'"},{"title":"Social media post sizing","prompt":"Can you count the characters in this tweet I'm drafting? 'Excited to announce we're launching our new product line next Monday! Follow along for exclusive behind-the-scenes content and early access deals. #launch #newproduct'"}],"resultDescription":"Returns a JSON object containing character count metrics for the submitted text, likely including total character count and T9-style token breakdown. The exact response fields are open (additionalProperties: true), so may include counts, breakdowns, or other text measurement data.","failureModes":["Text exceeding 50,000 characters may be rejected or truncated","Empty text input may return zero counts or an error","Payment failure via x402/Base will prevent call execution","Malformed JSON body will result in a 400-level error","Network timeout on the Cloudflare Workers edge may occur under load"],"whenToPreferThis":"Choose this endpoint when you need a cheap, pay-per-call character counting or T9-style tokenization service without a subscription. Ideal for autonomous agents that occasionally need to measure text length before passing it to downstream services with character limits, or for validating content size constraints. At $0.018 USDC per call via x402 on Base, it suits sporadic, programmatic use cases rather than bulk batch processing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:33.465Z","isFirstParty":false,"canonicalSlug":"one-engine-text-t9-character-counter-ef711095"}