{"uid":"cap_zaYvrLs4-4vikEj_kNZk4","slug":"agentdiet-mcp-gateway-injection-firewall-endpoint-6768cb2b","name":"AgentDiet MCP Gateway – Injection Firewall Endpoint","description":"Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://mcp-gateway.agentdiet.dev settling in USDC on Base.","url":"https://mcp-gateway.agentdiet.dev/v1/injection-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_UVjFe0X36mTUwkH2g4pFH","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":"Acts as a broker/router gateway that validates and filters HTTP requests before forwarding them to MCP servers, x402 APIs, and A2A agents, returning a compressed intelligence payload with ROI proof.","exampleAgentPrompt":"Route my GET request with the text 'summarize latest AI news' through the AgentDiet injection firewall gateway and give me back the filtered, compressed result with the ROI proof.","exampleUseCases":[{"title":"Filtered query to MCP server fleet","prompt":"Send my text query 'get me the top 5 trending GitHub repos today' through the AgentDiet injection firewall using a GET request, and return the compressed result with the compression ratio proof."},{"title":"Safe A2A request brokering","prompt":"I need to safely broker a POST request to an A2A agent with the text 'analyze my portfolio risk' — run it through the MCP gateway firewall first so I know it's been validated before hitting the downstream agent."},{"title":"x402 API access with payment proof","prompt":"Use the AgentDiet gateway to fire off a GET request with query text 'fetch current USDC price on Base' through the injection firewall and show me the status, data, and ROI compression proof I get back."}],"resultDescription":"A JSON object containing a status field ('ok' on success), a data object with the downstream response payload, and an roi_proof object showing compression_ratio_pct (e.g. 91.4%), indicating how efficiently the gateway processed and compressed the result.","failureModes":["Missing required 'input' object returns schema validation error","Invalid method enum value (not GET or POST) causes request rejection","Downstream MCP server or agent unavailable returns error status","Payment of 0.005 USDC not settled causes 402 Payment Required response","Malformed queryParams.text causes upstream parsing failure","Rate limiting or firewall injection detection blocks the request"],"whenToPreferThis":"Choose this endpoint when you need a single deterministic broker that validates, filters, and routes requests to any of 31,000+ MCP servers or x402 APIs with built-in injection protection and on-chain USDC payment settlement on Base. Prefer it over direct API calls when security (injection firewall), payment automation (x402/L402), and compression efficiency (ROI proof) are priorities, or when you need a unified gateway rather than managing individual MCP server connections.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:44:24.192Z","isFirstParty":false,"canonicalSlug":"agentdiet-mcp-gateway-injection-firewall-endpoint-6768cb2b"}