{"uid":"cap_eobXKzcm58bzszuWt7O1j","slug":"agentdiet-prompt-firewall-a2a-context-window-distiller-2149daba","name":"AgentDiet Prompt Firewall — A2A Context Window Distiller","description":"Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://rag-diet.agentdiet.dev settling in USDC on Base.","url":"https://rag-diet.agentdiet.dev/v1/prompt-firewall?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","POST"],"type":"string"},"queryParams":{"type":"object","properties":{"text":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":{},"status":"ok","roi_proof":{"compression_ratio_pct":91.4}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ED0eBXLXRFYADDoA3hgyS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Compresses and filters prompt/context text to reduce token count by up to 91% before forwarding to downstream LLMs or agents","exampleAgentPrompt":"Run this blob of RAG context through AgentDiet's prompt firewall to compress it before I send it to GPT-4 — I want to see the compression ratio and get back the slimmed-down version: 'The quarterly earnings report for FY2024 showed revenue of $4.2B across all segments including cloud, hardware, and services divisions with breakdowns by region...'","exampleUseCases":[{"title":"Shrinking RAG chunks before LLM call","prompt":"Take these retrieved document chunks and compress them through the AgentDiet prompt firewall before I stuff them into my Claude context window — I need the distilled version and the compression ratio proof."},{"title":"Cutting costs on high-volume agent pipelines","prompt":"My agent is burning through tokens because the system prompt is massive. Run it through the AgentDiet context distiller and tell me how much I can compress it — I want to see the roi_proof percentage."},{"title":"Prompt sanitization before model routing","prompt":"Before I forward this user-supplied prompt to my LLM backend, pass it through the AgentDiet firewall endpoint to strip bloat and filter it — return the compressed output and the compression ratio."}],"resultDescription":"Returns a JSON object with a 'data' field containing the compressed/distilled text output, a 'status' field ('ok' on success), and an 'roi_proof' object showing the compression_ratio_pct (e.g. 91.4%) achieved — letting callers verify token savings.","failureModes":["Missing required 'text' query parameter returns an error or empty data object","Input text exceeding size limits may be rejected or truncated","Payment failure via x402/L402 (insufficient USDC balance on Base) blocks the request","Malformed input schema (wrong 'type' or 'method' fields) causes validation rejection","Service unavailability returns non-200 status with no roi_proof"],"whenToPreferThis":"Choose this endpoint when you need deterministic, measurable context compression before passing prompts or RAG content to an LLM, especially in cost-sensitive high-volume agentic pipelines where token reduction ROI needs to be proven. It is particularly valuable when operating within x402/L402 micropayment infrastructure on Base/USDC and needing a pay-per-call firewall layer rather than a self-hosted solution.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:43:27.140Z","isFirstParty":false,"canonicalSlug":"agentdiet-prompt-firewall-a2a-context-window-distiller-2149daba"}