Can an agent start a sandbox with Modal Sandboxes?
Who does each step
Whether the agent handles it alone or a person has to step in.
- 01
Discover
Workaround · setupThe documents checked don't give the agent enough information to find or call this job. You provide the missing details.
- 02
Access
Workaround · setupYou give the agent a key or token.
- 03
Onboard
Workaround · setupYou sign up or register a client for the agent.
- 04
Pay
Workaround · setupYou add a payment card at the vendor's checkout.
- 05
Confirm
MachineThe response or specification defines errors the agent can distinguish from success.
- 06
Sustain
Workaround · setupYou replace or revoke the agent's access when it needs to change.
- Discover: telling the agent where the interface is or how to call it.
- Access: handing over a key or token.
- Onboard: signing up or registering a client for the agent.
- Pay: adding a payment card.
- Sustain: renewing, replacing or revoking its access.
To remove these handoffs: publish a machine-readable descriptor on modal.com for Modal Sandboxes that leads to a specification covering this job; support OAuth client registration so the agent can register its own client and ask for consent; provide an agent registration route, such as auth.md, a sign-up API or OAuth client registration; support payment in the request, such as x402 or MPP, so setup does not require a person to add a card; provide key management or OAuth refresh and revocation so the agent can maintain its own access.
Agent surfaces
The probe
Each request it sent and what came back; the descriptors it read, counted, with what they named.
Discover36 descriptor reads1 fact
- Found
- For agentsmodal.com/llms.txt
- From
- modal.com/llms.txt
- This endpoint
- api.modal.com is named by none of them
Job requestPOST api.modal.com/modal.client.ModalClient/SandboxCreate20039 ms
- Request
- POST https://api.modal.com/modal.client.ModalClient/SandboxCreate
- Response
- 200 · application/grpc · 0 bytes
- Body
- sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
- Exchange
- sha256:15c245ef8fe7d7b4bf7519bff4d0fd2f2af48e1ed9cece6e76a43b3bccf4eb3a
Resource metadataGET api.modal.com/.well-known/oauth-protected-resource/modal.client.ModalClient/SandboxCreate200142 ms
- Request
- GET https://api.modal.com/.well-known/oauth-protected-resource/modal.client.ModalClient/SandboxCreate
- Response
- 200 · application/grpc · 0 bytes
- Body
- sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
- Exchange
- sha256:e4ca585393c7b3aaee2617024349969927935d29e7307f01e4127b76d6286bb9
Resource metadataGET api.modal.com/.well-known/oauth-protected-resource200139 ms
- Request
- GET https://api.modal.com/.well-known/oauth-protected-resource
- Response
- 200 · application/grpc · 0 bytes
- Body
- sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
- Exchange
- sha256:ea3041a979b6886cf7d7605777065530ecee0b6f433c1507de331f427d7d3848
Declared pageGET modal.com/signup20058 ms
- Request
- GET https://modal.com/signup
- Response
- 200 · text/html · 35329 bytes
- Body
- sha256:698417a8ec88528c2222e376806725abec5be11e4244300375cb4577f2589f67
- Exchange
- sha256:7ce674a4d84ea7913ff568bd62cfbbd6fc978b69afd29caee6c442df482cfec0
Declared pageGET modal.com/settings/usage30754 ms
- Request
- GET https://modal.com/settings/usage
- Response
- 307 · application/octet-stream · 0 bytes
- Body
- sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
- Exchange
- sha256:1660b3a599526dd9d45c543da3383efe75d2db7abad6508f474d1de8b5216bea
Modal on the startup-offers board
- Thousands of free GPU creditsModal for Startups
The grade’s badge
One image that keeps itself current, linking here.
[](https://sourcey.com/c/modal/agent-readiness/modal-sandboxes/sandbox-code-run)Improve the report
Correct it, probe it again, or improve the path.
- Profile
- arp_01m4qs72nyv8vxfvy7j6wqhj08
- Projection
- sha256:9ad9a70752dc1b56c19078c41c8fc7e217acdb8f57d515009c90af7858e3676d
- Policy
- kind-2026-10-12.2 · sha256:b612172aad277b54461de84e006815126f2df566563954b02f4432a39cad89ac
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