[ RPC · chain 5042 ]

Arc, with proofs.

JSON-RPC for Arc through one gateway over 8 measured endpoints. Every answer carries a receipt; a proved read adds the block proof under the superroot.

[ Endpoints ]

Call it now

curl -s https://coord.taifoon.dev/gw/rpc/5042 -H 'content-type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'

HTTPS: https://coord.taifoon.dev/gw/rpc/5042
methods: eth_blockNumber · eth_call · eth_getLogs · eth_getBlockBy* · eth_getTransaction* · eth_chainId · batch ≤ 20 · taifoon_getProof
health: healthy · 8 endpoints, 5 for logs read 2026-10-16 17:14 UTC
measured: best upstream 43 ms average, 49 ms p95, 100 % success · 8 active endpoints, archive available (the rotation's own probe, 2026-10-16 17:13 UTC) read 2026-10-16 17:14 UTC

Writes: transaction sends are being added through the streaming settle path; until then eth_sendRawTransaction is refused with a named reason. Limits and prices: below.

[ Agents ]

Quick MCP

Connect an agent to the layer in one line. The MCP server answers without a key; its taifoon_register tool issues one.

claude mcp add --transport http taifoon https://coord.taifoon.dev/mcp

First call from any MCP client: tools/list, then taifoon_proof_tx with a chain and a transaction hash.

[ Data subscriptions ]

Stream what happens on Arc

No protocol lane runs on Arc yet. A protocol or chain owner can add one as a stream spec: stream services.

Protocol contracts the producer knows on Arc: Circle CCTP V2 DepositSource 0x28b5a0e9C621a5BadaA536219b3a228C8168cf5d · Circle CCTP V2 MessageTransmitter 0x81D40F21F12A8F0E3252Bccb954D722d4c464B64 · Li.Fi / Jumper DepositSource 0xA4072583658Fae592A3506A42431cb6316a8d40b · Taifoon ICP light client DepositSource 0x0B55d43D956b70edC19B45c196db3843F231f7eF.

[ Per-contract events ]

An event, as the lambda sees it

No order step on Arc was in the boards at this read. read 2026-10-16 17:14 UTC

[ Proof streaming ]

Checked under the superroot

A proved read on any request: send x-taifoon-proof: 1 with the call, or taifoon_getProof.

[ Pricing ]

Free to start, metered after

unit	free a day (key / visitor)	USDC per 1M	GRID per 1M
one JSON-RPC request (a batch of up to 20 calls is one request)	1000 / 100	0.500000	25
one request that returns a block proof (taifoon_getProof, or any request sent with x-taifoon-proof: 1)	0 / 0	5.000000	250

One key and one balance for every product. Plans and top-ups: pricing. read 2026-10-16 17:14 UTC

[ Partnership ]

Run Arc with Taifoon

A chain or protocol team can claim the owner seat of its record: it then maintains its lanes and stage table, sets its pricing share, and the Conclave records the ownership and the share. Endpoint operators can add capacity to the rotation and earn per call.

curl -s https://coord.taifoon.dev/v1/owners/chain:5042

Claim: POST https://coord.taifoon.dev/v1/owners/chain:5042/claim with your key and a signature from an address your contracts name. Partner cards · add capacity.