Where can I find the Chinese Canon Agama in English translation? Where can I find the Chinese Canon Agamas in English translation?
Dirgha Agama

Thanks to the reference contributed by ChrisW, I was able to find the following fragments:


DA 11, DA 12, and DA 30 translated by bhikkhu Analayo
DA 21 translated by Fan Dong Jing


The entire DA is available in print from BDK America (thanks for the link, Suminda Sirinath S. Dharmasena):


http://www.bdkamerica.org/catalog/indian-sources


Madhyama Agama

Online I was able to find the following sutras, translated by Charles D. Patton:


MA 1
MA 2
MA 10
MA 11
MA 17
MA 42
MA 45
MA 51
MA 186


There is also this BDK America version, containing the first 71 sutras:


MA 1-71


Samyukta Agama

According to the sutra commentaries in the Yogacara-bhumi Shastra, the Samyukta Agama was the earliest agama collection.

Turns out there are two version of Samyukta Agama, the long one (~1350 sutras), known by the scholars as T.99 or "ZA" and the short one (364 sutras), known as T.100 or "BZA". Most of the BZA is available in English translation by Marcus Bingenheimer either online or in one PDF. Most of the BZA sutras have almost identical counterparts in ZA.

Out of ~1350 sutras in the long Samyukta Agama, ~260 are available online so far, most translated to English by bhikkhu Analayo and some by an unknown translator at lapislazulitexts.com/tripitaka as well as by Choong Mun-keat:


SA1-32
SA33-58
SA59-87
SA103-110
SA111-138
SA139-187
SA188-229
SA 232 
SA 236
SA 249
SA256-272
SA 273
T.100.6 / SA 275
(SĀ 276) “Attitudes Towards Nuns – A Case Study of the Nandakovāda in the Light of its Parallels”, (with an appendix by Giuliana Martini), Journal of Buddhist Ethics, 2010, vol. 17 pp. 332–400.  download
SA 287
SA 293
SA 296
SA 297
SA 299
SA 300
SA 301: Kātyāyana Gotra
SA 335
(SĀ 344 and SA 389) ” Right View and the Scheme of the Four Truths in Early Budhism, The Saṃyukta-āgama Parallel to the Sammādiṭṭhi-sutta and the Simile of the Four Skills of a Physician”, Canadian Journal of Bud­dhist Studies, 2011, vol. 7 pp. 11–44.  download
SA 371: The Nutriments
SA 374. The Nutriments
SA 379: Turning the Dharma Wheel
SA 383. Having Known
SA 451. The Realms
SA 474: Gradual Subsiding
(SĀ 505) “Śakra and the Destruction of Craving – A Case Study in the Role of Śakra in Early Buddhism”, Indian International Journal of Buddhist Studies, 2011, vol. 12 pp. 157-176.  download
SA 606. Bases of Mindfulness
SA 610. Correct Mindfulness
SA 615. Bhikṣuṇī Residence
(SĀ 619) “Protecting Oneself and Others Through Mindfulness – The Acrobat Simile in the Saṃyukta-āgama”, Sri Lanka International Journal of Buddhist Studies, 2012, vol. 2 pp. 1–23.   download
SA 620. The Monkey
SA 621. The Young Bhikṣus
SA 623. The World Beauty
SA 746. Ānāpānasmṛti
SA 801: Five Dharmas
SA 802. Knowledge
SA 803. Knowledge
SA 804. Cutting Off Thoughts
SA 805. Ariṣṭa
SA 806. Kapphiṇa
SA 807. Two Months
SA 808. Kapilavastu
(SĀ 1042) “The Saṃyukta-āgama Parallel to the Sāleyyaka-sutta”, Journal of Buddhist Ethics, 2006, vol. 13 pp. 1–22.  download
T.100 equivalents of SA 1062-1225
(SĀ 1249) “Exemplary Qualities of a Monastic – The Saṃyukta-āgama Counterpart to the Mahāgopālaka-sutta and the Need of Balancing Inner Development with Concern for Others”, Sri Lanka International Journal of Buddhist Studies, 2010, vol. 1 pp. 1–22.  download


Ekottarika Agama

Unless otherwise noted, translated by Dr. Thich Huyen-Vi and Bhikkhu Pas­ad­ika in collaboration with Sara Boin-Webb, for the Buddhist Stud­ies Review.


EA 12.1 translated by Thích Nhất Hạnh, Annabel Laity
EA 17.1 — Mindfulness of Breathing
EA 18.4 — Brahmin
EA 18.5 — Elephant
EA 18.8 — Broad-minded
EA 18.9 — Authentic
EA 18.10 — Praise
EA 19.2 - EA 19.11
EA 20.1 - EA 20.13
EA 21.1 - EA 21.10