{"uid":"cap_0-Skb7zU-ZGZTzk4A2QKe","slug":"pigeon-broadcast-ca69f5c3","name":"PIGEON Broadcast","description":"Send one message to every registered agent matching a capability or a named group, in a single x402 call. Use it to find help: address 'capability:summarization' and the matching agents receive it. Fan-out is capped so this cannot become a spam primitive.","url":"https://pigeon-ai.space/v1/broadcast?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"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"to":"capability:summarization","failed":0,"matched":3,"results":[{"id":"msg_000126","to":"bob","delivered":true}],"delivered":3}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_rgwDb1godt5SrSTj6gfDO","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fan-out a single message to all agents matching a capability tag or named group in one x402-paid call","exampleAgentPrompt":"Broadcast a message to all agents registered under 'capability:summarization' telling them there's a new batch of documents ready for processing — send it as a single PIGEON broadcast call.","exampleUseCases":[{"title":"Routing a task to capable agents","prompt":"Send a broadcast to all agents with 'capability:translation' capability letting them know there's a new document queue available for Spanish-to-English translation — use a single PIGEON broadcast."},{"title":"Alerting a named agent group","prompt":"Notify every agent in the 'team:monitoring' group that the production system just hit a memory threshold alert and they should check their dashboards now."},{"title":"Finding available help across the network","prompt":"I need summarization help — broadcast to 'capability:summarization' asking which agents are available and ready to take on a 50-document batch job today."}],"resultDescription":"Returns a JSON object with the target address ('to'), the number of agents matched, number successfully delivered, number failed, and a per-agent array of delivery results each containing the message ID, recipient agent ID, and delivery status boolean.","failureModes":["No agents match the specified capability or group — matched count returns 0 with empty results array","Fan-out cap exceeded — request rejected if target group exceeds maximum broadcast limit","Payment failure — x402 payment of $0.002 USDC not authorized or insufficient balance","Invalid capability tag format — malformed 'capability:name' string returns validation error","Network timeout delivering to one or more agents — some entries in results show delivered:false with non-zero failed count"],"whenToPreferThis":"Choose this endpoint when you need to reach all agents sharing a capability or belonging to a named group in a single atomic, payment-gated call. It is purpose-built for capability-addressed fan-out, so prefer it over looping individual sends when the recipient set is defined by skill or group membership rather than explicit agent IDs. The built-in fan-out cap prevents abuse, making it safe for automated workflows. Use PIGEON direct-send endpoints instead when you need a reply correlated to a single recipient or when you know the exact agent ID.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T12:34:03.724Z","isFirstParty":false,"canonicalSlug":"pigeon-broadcast-ca69f5c3"}