Tenzro Chainlink

Estimate CCIP cross-chain messaging fee via Router.getFee() eth_call. Returns the native fee required to send a CCIP message from the source chain to the destination chain. Supports Ethereum, Base, and Arbitrum as source chains.

Get available CCIP lanes (source-destination chain pairs) from the Chainlink REST API. Optionally filter by source or destination chain selector.

Get CCIP Token Pool rate limiter configuration for a specific remote chain. Returns inbound and outbound rate limits (tokens per second, capacity) that control the maximum cross-chain transfer throughput. Part of CCIP v1.6+ security model.

Get supported chains for Chainlink CCIP from the Chainlink REST API. Returns chain names, selectors, and network details.

Get supported tokens for Chainlink CCIP from the Chainlink REST API. Returns token addresses, symbols, and supported lanes.

Get information about a CCIP Token Pool contract. Returns the pool type (Lock/Release or Burn/Mint), the token address, supported remote chains, and rate limiter config. Token Pools are part of the Cross-Chain Token (CCT) standard in CCIP v1.6+.

Send a CCIP cross-chain message via Router.ccipSend(). Submits a signed transaction to the source chain's CCIP Router to send a message and/or tokens to the destination chain. Returns the transaction hash.

Track the execution status of a CCIP cross-chain message on the destination chain. Calls OffRamp.getExecutionState() to check message delivery status. States: 0=UNTOUCHED (not yet processed), 1=IN_PROGRESS (being executed), 2=SUCCESS (delivered), 3=FAILURE (execution failed).

Broadcast a pre-signed Ethereum transaction (CCIP Router.ccipSend, VRF requestRandomWords, Functions request, etc.) to the chosen chain via eth_sendRawTransaction. Returns the resulting transaction hash as plain text. Sign the tx externally — typically built via ccip_send_message or vrf_request_rand

Check if a Chainlink Automation upkeep needs to be performed by dry-running checkUpkeep(bytes) on the target contract. Returns whether upkeep is needed and the perform data.

Estimate the cost of a Chainlink Functions request. Calculates the approximate LINK cost based on callback gas limit, gas price, and the Functions premium. Returns the estimated total cost in LINK.

Get the latest price from a Chainlink data feed by calling AggregatorV3Interface.latestRoundData(). Returns the price, round ID, timestamps, and decimal precision. Common feeds on Ethereum: ETH/USD = 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419, BTC/USD = 0xF4030086522a5bEEa4988F8cA5B36dbC97BeE88c.

Get Chainlink Functions subscription details including balance, owner, authorized consumers, and request counts. Queries the Functions Router contract on-chain.

Get information about a Chainlink Automation upkeep from the registry. Returns the upkeep target, balance, gas limit, and execution status.

List popular Chainlink data feed addresses for a given chain. Returns feed pairs, addresses, and decimal precision.

Get a Data Streams report for a specific feed ID. Data Streams provide sub-second, low-latency market data for crypto, forex, equities, and commodities. Returns benchmarkPrice, bid, ask, timestamps, and fee info. Common feed IDs: ETH/USD = 0x000359843a543ee2fe414dc14c7e7920ef10f4372990b79d6361cdc0dd

List available Chainlink Data Streams feeds. Returns feed IDs, pairs, and asset classes (crypto, forex, equities, commodities). Data Streams provide sub-second latency market data — distinct from the slower on-chain Data Feeds.

Read a Chainlink Proof of Reserve feed to verify asset reserves onchain. Uses the same AggregatorV3Interface as price feeds but returns reserve amounts instead of prices. Well-known PoR feeds on Ethereum: WBTC = 0xa81FE04086865e63E12dD3776978E49DEEa2ea4e, USDC = 0x9a177Bb065A0636C7972C6D27Abcd4B1e5E

List well-known Chainlink Proof of Reserve feeds. Returns feed addresses, asset names, and descriptions for verifying reserve backing of wrapped/synthetic assets.

Get VRF v2.5 subscription details from the VRFCoordinatorV2_5 contract. Returns balance, owner, authorized consumers, and pending requests. Supports Ethereum, Arbitrum, and Base.

Build transaction calldata for a VRF v2.5 random words request. Returns the hex-encoded calldata for VRFCoordinatorV2_5.requestRandomWords(). The caller must sign and submit the transaction from a consumer contract. VRF v2.5 supports payment in LINK or native token.