Find out why an Animica transaction would be rejected BEFORE you broadcast it. Decodes your canonical CBOR {body, sigs} envelope, returns the normalised fields and the CANONICAL HASH you are about to sign, then asks the node whether it would admit the transaction and why not. Both calls are read-only: nothing is inserted into the mempool and nothing is broadcast. Built for people writing Animica signers, where the alternative feedback loop is broadcast-and-see. No model.
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X POST 'https://animica.dev/x402/tx/preflight' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch -X POST 'https://animica.dev/x402/tx/preflight'
Endpoint: https://animica.dev/x402/tx/preflight. Operated by animica.dev, not by Animica. Price and availability were correct at the last probe on 2026-09-02 and are set by the operator, who may change them.
Statistical analysis of any segment of the x402 economy, computed over a merged index of Coinbase Bazaar and 402index overlaid with our own unpaid 402 probes. R…
Competitive position for a single x402 resource. Give a URL that is listed anywhere in the merged index and get back what the index holds on it (including any c…
Price positioning for an x402 service. Describe what you sell (and optionally what you charge) and get the comparable set — named, counted, and listed — plus yo…
Store up to 1024 KiB and get back a content commitment you can hand to anyone. The blob is erasure-coded across shards in the Animica data-availability layer an…
Full transaction history for one Animica account (anim1… bech32m), served from the gateway's own head-following index with a stable cursor — up to 500 rows per …
Block-production concentration on the Animica L1 over the last N blocks: every producer with its block count and share, HHI, Gini, effective producers, top-prod…
Live ANM monetary state from the Animica L1 itself: supply and account count, the block reward the node will actually credit (not the published split, which is …
Block-range and transaction-range exports from the Animica L1 (chunked reads, cursor pagination, NDJSON/JSON, gzip). Caps per request: 1000 blocks, 10000 tx rec…
Whether the Animica L1 is healthy enough to transact on right now: head height and hash, sync lag (blocks vs headers), difficulty and PoIES theta, measured netw…
A ranked snapshot of ANM holders at a pinned chain height — up to 1000 accounts with exact nANM balances as decimal strings, plus the total address count and th…
Verify you are on real Animica mainnet, and which chain id to sign with. Animica answers that question with TWO numbers: the native chain is id 1, while the EVM…
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 c…