An open API service for software projects hosted on Open Collective.

immer

Create the next immutable state by mutating the current one
Collective - Host: opensource - https://opencollective.com/immer - Website: https://immerjs.github.io/immer/ - Code: https://github.com/immerjs/immer

5.0 USD - Monthly financial contribution to immer (backer)

guest-0c14ca87 - 05 Mar 2026

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 05 Mar 2026

-0.5 USD - Host Fee

opensource - 05 Mar 2026

10.0 USD - Monthly financial contribution to immer

synergy-marketing - 02 Mar 2026

-0.74 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 02 Mar 2026

-1.0 USD - Host Fee

opensource - 02 Mar 2026

50.0 USD - Monthly financial contribution to immer (backer)

torutek - 01 Mar 2026

-2.5 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Mar 2026

-5.0 USD - Host Fee

opensource - 01 Mar 2026

250.0 USD - Monthly financial contribution to immer

cybozu - 01 Mar 2026

-11.3 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Mar 2026

-25.0 USD - Host Fee

opensource - 01 Mar 2026

5.0 USD - Monthly financial contribution to immer (backer)

mfbtech - 01 Mar 2026

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Mar 2026

-0.5 USD - Host Fee

opensource - 01 Mar 2026

5.0 USD - Monthly financial contribution to immer (backer)

incognito-a05b39bf - 28 Feb 2026

-0.66 USD - PayPal payment processor fee

paypal-payment-processor-vendor - 28 Feb 2026

-0.5 USD - Host Fee

opensource - 28 Feb 2026

10.0 USD - Monthly financial contribution to immer

synergy-marketing - 12 Feb 2026

-0.74 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 12 Feb 2026

-1.0 USD - Host Fee

opensource - 12 Feb 2026

50.0 USD - Monthly financial contribution to immer (backer)

torutek - 01 Feb 2026

-2.5 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Feb 2026

-5.0 USD - Host Fee

opensource - 01 Feb 2026

250.0 USD - Monthly financial contribution to immer

cybozu - 01 Feb 2026

-11.3 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Feb 2026

-25.0 USD - Host Fee

opensource - 01 Feb 2026

5.0 USD - Monthly financial contribution to immer (backer)

guest-0c14ca87 - 01 Feb 2026

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Feb 2026

-0.5 USD - Host Fee

opensource - 01 Feb 2026

5.0 USD - Monthly financial contribution to immer (backer)

mfbtech - 01 Feb 2026

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Feb 2026

-0.5 USD - Host Fee

opensource - 01 Feb 2026

5.0 USD - Monthly financial contribution to immer (backer)

incognito-a05b39bf - 31 Jan 2026

-0.66 USD - PayPal payment processor fee

paypal-payment-processor-vendor - 31 Jan 2026

-0.5 USD - Host Fee

opensource - 31 Jan 2026

-2,922.25 USD - General maintenance

mweststrate - 06 Jan 2026

-5.56 USD - Other Payment Processor payment processor fee

other-payment-processor-vendor - 06 Jan 2026

50.0 USD - Monthly financial contribution to immer (backer)

torutek - 01 Jan 2026

-2.5 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Jan 2026

-5.0 USD - Host Fee

opensource - 01 Jan 2026

250.0 USD - Monthly financial contribution to immer

cybozu - 01 Jan 2026

-11.3 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Jan 2026

-25.0 USD - Host Fee

opensource - 01 Jan 2026

5.0 USD - Monthly financial contribution to immer (backer)

guest-0c14ca87 - 01 Jan 2026

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Jan 2026

-0.5 USD - Host Fee

opensource - 01 Jan 2026

5.0 USD - Monthly financial contribution to immer (backer)

mfbtech - 01 Jan 2026

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Jan 2026

-0.5 USD - Host Fee

opensource - 01 Jan 2026

5.0 USD - Monthly financial contribution to immer (backer)

incognito-a05b39bf - 31 Dec 2025

-0.66 USD - PayPal payment processor fee

paypal-payment-processor-vendor - 31 Dec 2025

-0.5 USD - Host Fee

opensource - 31 Dec 2025

50.0 USD - Monthly financial contribution to immer (backer)

torutek - 01 Dec 2025

-2.5 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Dec 2025

-5.0 USD - Host Fee

opensource - 01 Dec 2025

250.0 USD - Monthly financial contribution to immer

cybozu - 01 Dec 2025

-11.3 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Dec 2025

-25.0 USD - Host Fee

opensource - 01 Dec 2025

5.0 USD - Monthly financial contribution to immer (backer)

guest-0c14ca87 - 01 Dec 2025

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Dec 2025

-0.5 USD - Host Fee

opensource - 01 Dec 2025

5.0 USD - Monthly financial contribution to immer (backer)

mfbtech - 01 Dec 2025

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Dec 2025

-0.5 USD - Host Fee

opensource - 01 Dec 2025

5.0 USD - Monthly financial contribution to immer (backer)

incognito-a05b39bf - 30 Nov 2025

-0.66 USD - PayPal payment processor fee

paypal-payment-processor-vendor - 30 Nov 2025

-0.5 USD - Host Fee

opensource - 30 Nov 2025

50.0 USD - Monthly financial contribution to immer (backer)

torutek - 01 Nov 2025

-2.5 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Nov 2025

-5.0 USD - Host Fee

opensource - 01 Nov 2025

250.0 USD - Monthly financial contribution to immer

cybozu - 01 Nov 2025

-11.3 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Nov 2025

-25.0 USD - Host Fee

opensource - 01 Nov 2025

5.0 USD - Monthly financial contribution to immer (backer)

guest-0c14ca87 - 01 Nov 2025

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Nov 2025

-0.5 USD - Host Fee

opensource - 01 Nov 2025

5.0 USD - Monthly financial contribution to immer (backer)

mfbtech - 01 Nov 2025

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Nov 2025

-0.5 USD - Host Fee

opensource - 01 Nov 2025

5.0 USD - Monthly financial contribution to immer (backer)

incognito-a05b39bf - 31 Oct 2025

-0.66 USD - PayPal payment processor fee

paypal-payment-processor-vendor - 31 Oct 2025

-0.5 USD - Host Fee

opensource - 31 Oct 2025

50.0 USD - Monthly financial contribution to immer (backer)

torutek - 01 Oct 2025

-2.5 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Oct 2025

-5.0 USD - Host Fee

opensource - 01 Oct 2025

250.0 USD - Monthly financial contribution to immer

cybozu - 01 Oct 2025

-11.3 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Oct 2025

-25.0 USD - Host Fee

opensource - 01 Oct 2025

5.0 USD - Monthly financial contribution to immer (backer)

guest-0c14ca87 - 01 Oct 2025

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Oct 2025

-0.5 USD - Host Fee

opensource - 01 Oct 2025

5.0 USD - Monthly financial contribution to immer (backer)

mfbtech - 01 Oct 2025

-0.45 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Oct 2025

-0.5 USD - Host Fee

opensource - 01 Oct 2025

5.0 USD - Monthly financial contribution to immer (backer)

incognito-a05b39bf - 30 Sep 2025

-0.66 USD - PayPal payment processor fee

paypal-payment-processor-vendor - 30 Sep 2025

-0.5 USD - Host Fee

opensource - 30 Sep 2025

50.0 USD - Monthly financial contribution to immer (backer)

torutek - 01 Sep 2025

-2.5 USD - Stripe payment processor fee

stripe-payment-processor-vendor - 01 Sep 2025