{"uid":"cap_P2mVxjFwHYUaqDu6zfHlP","slug":"animica-chain-mempool-status-api-b1ecd426","name":"Animica Chain Mempool Status API","description":"A point-in-time read of the Animica mempool and network: pending transaction count and ids, total pending bytes, the age of the oldest entry, chain head, peer count and network hashrate. What a bot watching for congestion, fee conditions or inclusion timing needs, without running a node.","url":"https://animica.dev/x402/chain/mempool","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001728","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":"$0.001728/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001728","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001728","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YJ_TGYPP_Y-YvaluU7lkv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001728","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time blockchain mempool statistics including pending transaction count, total size, oldest transaction age, pending transaction IDs, current block head, and network peer/hashrate data.","exampleAgentPrompt":"Can you pull the current mempool status — how many transactions are pending, how large the backlog is in bytes, and what the oldest unconfirmed transaction age is?","exampleUseCases":[{"title":"Monitor mempool congestion before sending","prompt":"Before I broadcast my transaction, check how congested the mempool is right now — how many pending transactions are there and how old is the oldest one?"},{"title":"Track blockchain network health","prompt":"Give me a real-time snapshot of the blockchain network — current block height, number of connected peers, and network hashrate."},{"title":"Alert on mempool backlog spike","prompt":"Check the mempool right now and tell me if there are more than 5000 pending transactions or if any transaction has been waiting more than an hour — I want to know if things are backing up."}],"resultDescription":"A JSON object containing: mempool stats (count of pending transactions, total size in bytes, age in seconds of the oldest pending transaction, array of pending transaction IDs), current chain head (block height and block hash), network info (peer count and hashrate), and an observed_at timestamp indicating when the snapshot was taken.","failureModes":["Network node unavailable — returns error if the underlying blockchain node is unreachable","Payment failure — x402 payment of $0.005452 USDC not accepted, call rejected","Rate limiting — too many requests in a short window may be throttled","Empty mempool — returns count 0 and empty pending_txids array when mempool is clear (not an error)"],"whenToPreferThis":"Use this endpoint when you need a real-time snapshot of blockchain mempool and network state without running your own node infrastructure. It is ideal for agents that need to check transaction congestion before fee estimation, monitor chain liveness, or detect backlog conditions. The x402 micropayment model makes it suitable for pay-per-query use cases where persistent subscriptions are not needed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:48:46.582Z","isFirstParty":false}