The same comparison as Why CryptoRail, with names. Every statement about a vendor links to that vendor's own documentation or pricing page; every statement about CryptoRail is a registered claim with its evidence. Where another product is stronger, this page says so.
Last checked 2026-10-19 against each vendor's public pages. Vendors change their products, names and prices; if a line here is out of date, write to mail@xavinet.com and it will be corrected.
Representative, not exhaustive: the products a buyer evaluating CryptoRail most often has on the same list.
Keys in its vault under an MPC-CMP architecture, policies on transactions, and over 1,200 assets supported.
The successors of OpenZeppelin Defender, whose hosted serviceretired on 1 July 2026; Relayer and Monitor are open source andship as Docker images.
An onchain cloud platform: paymaster and bundler, smart wallets and rollups, with "one integration, one bill, one dashboard, one API".
Its Modular Execution Environment has replaced paymasters, with one gas tank for sponsorship across all its supported chains.
Gas sponsorship through its Gas Manager under ERC-4337, andwebhooks on address, contract and NFT activity.
Runs in your infrastructure, as a container image over your PostgreSQL, with schema migrations applied by an explicit command.
Gelato, Biconomy and Alchemy are services you call; Fireblocks secures keys in its vault with MPC,the third key share held by your API co-signer or a mobile device, and its embedded wallet holds one of two shares on a server it manages. Fireblocks also offers Key Link, to keep keys in your own HSM, on premises or in the cloud.
OpenZeppelin Relayer is the peer on this axis: it runs in your own infrastructure under the AGPL-3.0 licence, and signs with anencrypted keystore, HashiCorp Vault, Google Cloud KMS, AWS KMS, Turnkey or the Coinbase Developer Platform. CryptoRail differs in what it adds around the signature: quorum approvals and policies decided before anything is signed.
A hosted service reaches the networks it lists: Gelato, for example, worksacross 100+ chains. Fireblocks documents private networks for its embedded wallet only "within our supported ecosystem". OpenZeppelin Relayer accepts custom network configurations with your own RPC endpoints and chain ids.
CryptoRail is tested on every change against a permissioned network without fees, and treats free gas as a gas policy of its own rather than as a public network with a price of zero.
Gelato sponsors gas with ERC-4337 and EIP-7702 support. Biconomy sponsors from its own gas tank, post-paid and invoiced at the end of the month, with limits per transaction, a total cap, allowed contracts and chains; it also lets you run your own backend to accept or reject each request. Alchemy's Gas Manager says plainly that "there may be brief periods where the actual spending slightly exceeds the limits you've set". OpenZeppelin Relayer's documentation describes gasless transactions on Solana and sponsored ones on Stellar.
In CryptoRail the paymaster is yours and the budget is a hard limit, enforced even when requests arrive at once.
Fireblocks sends webhooks on deposits, withdrawals and transaction status changes, retrying failed deliveries with exponential backoff. Alchemy offersaddress activity, custom and NFT activity webhooks. OpenZeppelin Monitor watches functions, events and transactions and alerts through Slack, Discord, email, Telegram, webhooks or scripts.
CryptoRail delivers your contracts' events and your own operations through one channel, with reorganisations handled and duplicates identifiable.
Fireblocks publishes an Essentials plan at $999 a month for up to six months, and custom plans from $36,000 a year. Alchemy's Gas Manager is free and unlimited on test networks and charges 8% of the gas fees covered on mainnets in its pay-as-you-go tier. Biconomy invoices sponsorship monthly. With a hosted service, your operations and their records pass through its infrastructure.
CryptoRail runs over your own PostgreSQL in your own infrastructure, and records the actual cost of every operation.
If one of these is what you need most, that vendor may be the better choice.
It carries the custody for you and covers over 1,200 assets, beyond the EVM family. Blockchains outside the EVM family. Not supported Custody of your end customers' keys. Not supported
Relayer and Monitor are open source under the AGPL-3.0 licence, and coverSolana and Stellar as well as EVM networks.
A hosted service is live with an API key, on many public chains; Biconomy addscross-chain gas abstraction. CryptoRail is software you operate, and the offering run for you is not yet available for value: Run for you in production without ever holding a key of its own: signing stays on your side or in your own cloud account. Available for pilots
Where custody is the reason to choose a custodian, you do not have to choose. CryptoRail prepares the exact bytes, your custodian or your own signing system signs them, and CryptoRail verifies, broadcasts and follows the transaction to finality. A ready-made Fireblocks adapter is on request.
Gelato's documentation site could not be reached on 2026-10-19; its fees are left out rather than quoted from older copies.
| Vendor | Page | Checked |
|---|---|---|
| Fireblocks | Key features and capabilities | 2026-10-19 |
| Fireblocks | Embedded wallet, main capabilities | 2026-10-19 |
| Fireblocks | Webhooks overview | 2026-10-19 |
| Fireblocks | Pricing | 2026-10-19 |
| OpenZeppelin | Phasing out Defender | 2026-10-19 |
| OpenZeppelin | Defender sunset FAQ | 2026-10-19 |
| OpenZeppelin | Relayer documentation | 2026-10-19 |
| OpenZeppelin | Relayer signers | 2026-10-19 |
| OpenZeppelin | Monitor documentation | 2026-10-19 |
| Gelato | Home page | 2026-10-19 |
| Biconomy | Sponsorship | 2026-10-19 |
| Alchemy | Gas Manager FAQ | 2026-10-19 |
| Alchemy | Webhooks overview | 2026-10-19 |
A pilot environment stood up in minutes with nothing installed on your side.