{"uid":"cap_UPSRhOgYgMr_kIcrdjT3p","slug":"chat-anchor-x402-com-9d40cb93","name":"Academic Letter Grade with Red-Pen Marginalia","description":"Academic letter grade with red-pen marginalia for anything. $0.01 USDC.","url":"https://chat.anchor-x402.com/v1/grade?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"required":["target"],"properties":{"target":{"type":"string","maxLength":6000,"description":"Anything to grade."}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":{"request":{"input":{"body":{"target":"The quick brown fox jumps over the lazy dog. This sentence demonstrates all letters of the English alphabet in a single, coherent statement. It is commonly used for testing typewriters and fonts."},"type":"http","method":"POST","bodyType":"json"}},"response":{"summary":"You've correctly identified and explained a pangram with accurate supporting information. The writing is clear and grammatically sound, hitting all the factual marks. However, the submission plays it entirely by the book—there's no original observation, no creative angle, no deeper question about *why* this particular sentence endures. It's the kind of answer that would score well on a quiz but wouldn't make anyone think twice. Add a perspective, an example, a counterpoint, or a tangent, and you'd have something memorable.","marginalia":["Textbook definition of 'pangram'—you nailed the what but skipped the why.","Nice structure, but where's the insight? This reads like Wikipedia.","Lazy dog reference is ironic; your analysis could use more energy.","Good historical context. Show us *how* it's used, not just that it is.","Competent but safe. You're describing, not exploring."],"letter_grade":"B"}},"exampleRequest":{"target":"The quick brown fox jumps over the lazy dog. This sentence demonstrates all letters of the English alphabet in a single, coherent statement. It is commonly used for testing typewriters and fonts."},"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":1,"rating":{"score":"0.08","successRate":"0.00","reviews":1,"stars":"1.3","state":"rated"},"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_UAy-s6yKLI2vc2uTv-2aR","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":"Returns an academic letter grade (A–F) with detailed red-pen-style written feedback for any submitted content, idea, text, or artifact.","exampleAgentPrompt":"Give this essay a letter grade with red-pen marginalia, like a strict professor would: 'The internet has fundamentally changed how humans form relationships, creating both new opportunities for connection and unprecedented risks of isolation.'","exampleUseCases":null,"resultDescription":"An academic letter grade (A through F) along with detailed red-pen-style marginalia — inline critique, corrections, and commentary written as a professor would annotate a student's paper.","failureModes":["Empty or missing content body returns an error","Payment of $0.01 USDC not provided results in 402 response","Extremely long submissions may be truncated or rejected","Content in unsupported languages may yield lower-quality feedback"],"whenToPreferThis":"Choose this endpoint when you want opinionated, structured academic-style evaluation with written annotations rather than a simple score or aura reading. Best for text, ideas, essays, code, or any artifact where letter-grade feedback and inline critique are desired. Distinct from the roast endpoint (which is comedic) and the aura endpoint (which is abstract/vibes-based).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":1,"lastUsedAt":"2026-08-13T10:20:49.458Z","lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T00:41:15.217Z","isFirstParty":false,"canonicalSlug":"chat-anchor-x402-com-9d40cb93"}