{"uid":"cap_hoplqwebSOI1ILsF5RGzx","slug":"draconic21-directory-presence-check-9b4677cb","name":"draconic21 Directory Presence Check","description":"GO-TO product for funded agents: Daily Agent Signal (POST /v1/signal_latest $0.03, /v1/signal_history $0.10, /v1/signal_delta $0.05). Signal is the flagship; supporting/legacy routes are demoted. Archive honesty: archive_day_count=6 — 6 stored dates from 2026-09-19 through 2026-09-27. Intraday revisions do not add archive days. Unpaid calls return HTTP 402. USDC on Base. Free discovery: /, /agents.md, /llms.txt, /skill.md, /.well-known/x402.json, /.well-known/mcp.json, /openapi.json.","url":"https://draconic21-x402-api.onrender.com/v1/directory_presence?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":[],"properties":{},"additionalProperties":true},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"ok":{"type":"boolean"},"brand":{"type":"string"},"product":{"type":"string"}}}}}}},"responseSchema":{"type":"json","example":{"ok":true,"brand":"draconic21","product":"directory_presence"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.06","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":"$0.06/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.06","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.06","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_aH48sSmiEJAOyXeIi1_5b","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.06","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a named brand, product, or agent is listed in the draconic21 signal directory","exampleAgentPrompt":"Check if 'MyTradingBot' is listed in the draconic21 directory and tell me whether it shows up as a recognized brand or product.","exampleUseCases":[{"title":"Verify agent brand registration","prompt":"Can you check whether 'AlphaSignalBot' is present in the draconic21 directory? I want to know if it's a recognized brand or product in their system."},{"title":"Confirm product listing before integration","prompt":"Before I wire up my agent to draconic21's signal feed, check if the product name 'SentinelFund' is already listed in their directory."},{"title":"Audit competitor presence in signal ecosystem","prompt":"Look up whether 'RivalQuant' shows up as a registered brand or product in the draconic21 directory — I'm trying to see if they're part of that ecosystem."}],"resultDescription":"Returns a JSON object with an 'ok' boolean indicating whether the entity is present, along with 'brand' and 'product' string fields identifying the matched entry in the directory.","failureModes":["HTTP 402 if payment is not attached or insufficient USDC balance on Base","Empty or unrecognized body fields may return ok: false without an error","Service may be unavailable if Render instance is cold-starting (latency spike)","Malformed JSON body returns 400 or similar client error"],"whenToPreferThis":"Use this endpoint when you need a lightweight, binary presence check to confirm whether a specific brand or product name is catalogued in the draconic21 signal directory before committing to more expensive signal or history calls. It is cheaper than signal_latest ($0.03) but still requires payment, so it is best suited as a pre-flight validation step rather than a repeated polling operation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T06:46:02.379Z","isFirstParty":false,"canonicalSlug":"draconic21-directory-presence-check-9b4677cb"}