Multi-Signature Addresses - Are there online wallet providers that support this?

[yiidev]

Is there an online wallet provider who supports multi-signature transactions?

It looks like blockchain.info used to have an escrow service, but it looks like they no longer offer these services due to lack of use:
https://blockchain.info/wallet/escrow

Do you know if these methods are available through:
https://blockchain.info/api/json_rpc_api

Are there any escrow services out there that can be called via an api to generate a bitcoin address that can be used for multi-signature purposes?

[chriswilmer]

bump... anyone know the answer to this?

[phrackage]

Bump - BitGo has multig but it doesn't look like it has an API/web service.

[Undecidable]

actually, i've been running one for a while (that is api-based):

https://api.trustedcoin.com/#/docs

and we have a reference implementation of a web wallet built on top of it:

https://api.trustedcoin.com/wallet/
https://github.com/jseims/trustedcoin-web-wallet