Create a new secret value
Owner-only, write-only. Creates a new encrypted secret value under a name. The name must match ^[A-Z][A-Z0-9_]*$ (the same charset a {{secret:NAME}} reference uses, so a settable name is always referenceable); values are capped at 8 KiB. The value is never echoed back. Returns 409 secret_already_exists if a secret with the same name already exists for this scope; use PUT to replace it. Requires the owner’s user token; app/render tokens are rejected.
POST
/app/{id}/secretsAuthorization
AuthorizationBearer token (bld_user_*) · headerrequiredUser-scoped personal access token. Mint via `POST /api/token` after signing in, or via the device-pairing flow at `POST /api/pair/start`. Authorises everything the user can do.
Path parameters
idstringrequiredRequest body
requiredapplication/jsonnamestringrequiredEnv-var-shaped secret name (referenceable via `{{secret:NAME}}`).
matches ^[A-Z][A-Z0-9_]*$
valuestringrequiredPlaintext secret value (max 8 KiB). Stored encrypted; never returned.
max length 8192
Responses
200Secret stored.
okbooleanrequiredAllowed:
true400Body is not JSON, name/value missing, name invalid, or value too large.
okbooleanrequiredAllowed:
falseerrorobjectrequiredShow propertiesHide properties
kindstringrequiredStable enum-shaped error key. Branch on this for recovery flows.
Allowed:
not_foundunknown_operationoperation_not_foundoperation_failedunauthorizedtoken_expiredforbiddenforbidden_writestorage_quota_exceededinvalid_moduleinvalid_uiinvalid_route_schemainvalid_routes_shapeinvalid_manifest_exportsinvalid_requestinvalid_inputinvalid_outputunexpected_keyscapability_deniedcapability_errorexecutor_errorinvalid_call_shapealready_claimedduplicate_remixmanifest_not_foundpayload_too_largemodule_too_largeui_too_largedescription_too_longmissing_descriptioninvalid_descriptionrate_limitedtoo_many_requestsexpiredalready_approvedanon_not_remixableinvalid_if_matchprecondition_requiredversion_mismatchold_string_not_foundold_string_not_uniqueedits_too_largemanifest_id_conflictmanifest_id_immutabletext_too_largestructured_data_too_largeapp_not_foundasset_too_largeasset_count_exceededasset_quota_exceededasset_invalid_keyasset_invalid_content_typeasset_errorinvalid_idsse_cookie_expiredinvalid_secret_namesecret_too_largesecret_already_existsinvalid_iconteam_slug_takenalready_membergrantee_not_foundinvite_cap_reachedread_onlyhandle_takeninvalid_handlename_takenapp_unclaimedlink_cap_reachedgrantee_is_owneralready_invitedmessagestringreasonstringSet on 401s to distinguish token failure modes when finer detail is needed. `token_revoked_post_claim` is the post-#1284 surface for a bld_app_* that was invalidated by a claim — the `recovery` field on the same `error` object carries the self-contained pairing-recovery hint the agent should follow instead of creating a new app.
Allowed:
token_malformedtoken_unknowntoken_revokedtoken_revoked_post_claimrecoveryRecoveryPair | RecoveryRetry | RecoveryShrink | RecoveryRefetch | RecoveryFixRouteLabel | RecoveryOpenExisting | RecoveryRenameSelf-contained recovery hint, branching on `kind`. Attached to error envelopes the agent can self-correct on: `pair` for `token_revoked_post_claim` 401s (#1284), `retry` for 429s, `shrink` for too-large / quota-exceeded 413s, `refetch` for 412 `version_mismatch` / `invalid_if_match` / 428 `precondition_required`, `fix_route_label` for 403 `forbidden_write`, `open_existing` for 409 `duplicate_remix`, and `rename` for 409 `manifest_id_immutable` / `manifest_id_conflict`. Every `instructions` string is a single-paragraph, action-first walk-through. Inlined per ADR 2026-05-06-agent-facing-error-surfaces-self-contain-the-fix.
Show propertiesHide properties
One of:
RecoveryPair
kindstringrequiredAllowed:
pairstartstring<uri>requiredverification_urlstring<uri>requiredinstructionsstringrequiredRecoveryRetry
kindstringrequiredAllowed:
retryretry_after_secintegerrequiredSeconds to wait before retrying. Matches the `RateLimit-Reset` and `Retry-After` headers on the same response.
min 0
retry_after_urlstring<uri>requiredAbsolute URL to retry verbatim once the wait elapses.
instructionsstringrequiredRecoveryShrink
kindstringrequiredAllowed:
shrinkfieldstringrequiredWhich input tripped the cap.
Allowed:
moduleuistylesdescriptiontextstructured_dataasseteditssecretpayloadsize_bytesintegerrequiredmin 0
cap_bytesintegerrequiredmin 0
instructionsstringrequiredRecoveryRefetch
kindstringrequiredAllowed:
refetchrefetch_urlstring<uri>requiredAbsolute URL to GET for the fresh ETag before retrying with a corrected If-Match.
instructionsstringrequiredRecoveryFixRouteLabel
kindstringrequiredAllowed:
fix_route_labelinstructionsstringrequiredApp-code recovery: the fix is in the route declaration, NOT in the request. Retrying the same request will fail again.
RecoveryOpenExisting
kindstringrequiredAllowed:
open_existingexisting_app_idstringrequiredexisting_urlstring<uri>requiredinstructionsstringrequiredRecoveryRename
kindstringrequiredAllowed:
renameinstructionsstringrequired401User-scoped auth required.
okbooleanrequiredAllowed:
falseerrorobjectrequiredShow propertiesHide properties
kindstringrequiredStable enum-shaped error key. Branch on this for recovery flows.
Allowed:
not_foundunknown_operationoperation_not_foundoperation_failedunauthorizedtoken_expiredforbiddenforbidden_writestorage_quota_exceededinvalid_moduleinvalid_uiinvalid_route_schemainvalid_routes_shapeinvalid_manifest_exportsinvalid_requestinvalid_inputinvalid_outputunexpected_keyscapability_deniedcapability_errorexecutor_errorinvalid_call_shapealready_claimedduplicate_remixmanifest_not_foundpayload_too_largemodule_too_largeui_too_largedescription_too_longmissing_descriptioninvalid_descriptionrate_limitedtoo_many_requestsexpiredalready_approvedanon_not_remixableinvalid_if_matchprecondition_requiredversion_mismatchold_string_not_foundold_string_not_uniqueedits_too_largemanifest_id_conflictmanifest_id_immutabletext_too_largestructured_data_too_largeapp_not_foundasset_too_largeasset_count_exceededasset_quota_exceededasset_invalid_keyasset_invalid_content_typeasset_errorinvalid_idsse_cookie_expiredinvalid_secret_namesecret_too_largesecret_already_existsinvalid_iconteam_slug_takenalready_membergrantee_not_foundinvite_cap_reachedread_onlyhandle_takeninvalid_handlename_takenapp_unclaimedlink_cap_reachedgrantee_is_owneralready_invitedmessagestringreasonstringSet on 401s to distinguish token failure modes when finer detail is needed. `token_revoked_post_claim` is the post-#1284 surface for a bld_app_* that was invalidated by a claim — the `recovery` field on the same `error` object carries the self-contained pairing-recovery hint the agent should follow instead of creating a new app.
Allowed:
token_malformedtoken_unknowntoken_revokedtoken_revoked_post_claimrecoveryRecoveryPair | RecoveryRetry | RecoveryShrink | RecoveryRefetch | RecoveryFixRouteLabel | RecoveryOpenExisting | RecoveryRenameSelf-contained recovery hint, branching on `kind`. Attached to error envelopes the agent can self-correct on: `pair` for `token_revoked_post_claim` 401s (#1284), `retry` for 429s, `shrink` for too-large / quota-exceeded 413s, `refetch` for 412 `version_mismatch` / `invalid_if_match` / 428 `precondition_required`, `fix_route_label` for 403 `forbidden_write`, `open_existing` for 409 `duplicate_remix`, and `rename` for 409 `manifest_id_immutable` / `manifest_id_conflict`. Every `instructions` string is a single-paragraph, action-first walk-through. Inlined per ADR 2026-05-06-agent-facing-error-surfaces-self-contain-the-fix.
Show propertiesHide properties
One of:
RecoveryPair
kindstringrequiredAllowed:
pairstartstring<uri>requiredverification_urlstring<uri>requiredinstructionsstringrequiredRecoveryRetry
kindstringrequiredAllowed:
retryretry_after_secintegerrequiredSeconds to wait before retrying. Matches the `RateLimit-Reset` and `Retry-After` headers on the same response.
min 0
retry_after_urlstring<uri>requiredAbsolute URL to retry verbatim once the wait elapses.
instructionsstringrequiredRecoveryShrink
kindstringrequiredAllowed:
shrinkfieldstringrequiredWhich input tripped the cap.
Allowed:
moduleuistylesdescriptiontextstructured_dataasseteditssecretpayloadsize_bytesintegerrequiredmin 0
cap_bytesintegerrequiredmin 0
instructionsstringrequiredRecoveryRefetch
kindstringrequiredAllowed:
refetchrefetch_urlstring<uri>requiredAbsolute URL to GET for the fresh ETag before retrying with a corrected If-Match.
instructionsstringrequiredRecoveryFixRouteLabel
kindstringrequiredAllowed:
fix_route_labelinstructionsstringrequiredApp-code recovery: the fix is in the route declaration, NOT in the request. Retrying the same request will fail again.
RecoveryOpenExisting
kindstringrequiredAllowed:
open_existingexisting_app_idstringrequiredexisting_urlstring<uri>requiredinstructionsstringrequiredRecoveryRename
kindstringrequiredAllowed:
renameinstructionsstringrequired403Caller does not own this app, or the app is anon-owned.
okbooleanrequiredAllowed:
falseerrorobjectrequiredShow propertiesHide properties
kindstringrequiredStable enum-shaped error key. Branch on this for recovery flows.
Allowed:
not_foundunknown_operationoperation_not_foundoperation_failedunauthorizedtoken_expiredforbiddenforbidden_writestorage_quota_exceededinvalid_moduleinvalid_uiinvalid_route_schemainvalid_routes_shapeinvalid_manifest_exportsinvalid_requestinvalid_inputinvalid_outputunexpected_keyscapability_deniedcapability_errorexecutor_errorinvalid_call_shapealready_claimedduplicate_remixmanifest_not_foundpayload_too_largemodule_too_largeui_too_largedescription_too_longmissing_descriptioninvalid_descriptionrate_limitedtoo_many_requestsexpiredalready_approvedanon_not_remixableinvalid_if_matchprecondition_requiredversion_mismatchold_string_not_foundold_string_not_uniqueedits_too_largemanifest_id_conflictmanifest_id_immutabletext_too_largestructured_data_too_largeapp_not_foundasset_too_largeasset_count_exceededasset_quota_exceededasset_invalid_keyasset_invalid_content_typeasset_errorinvalid_idsse_cookie_expiredinvalid_secret_namesecret_too_largesecret_already_existsinvalid_iconteam_slug_takenalready_membergrantee_not_foundinvite_cap_reachedread_onlyhandle_takeninvalid_handlename_takenapp_unclaimedlink_cap_reachedgrantee_is_owneralready_invitedmessagestringreasonstringSet on 401s to distinguish token failure modes when finer detail is needed. `token_revoked_post_claim` is the post-#1284 surface for a bld_app_* that was invalidated by a claim — the `recovery` field on the same `error` object carries the self-contained pairing-recovery hint the agent should follow instead of creating a new app.
Allowed:
token_malformedtoken_unknowntoken_revokedtoken_revoked_post_claimrecoveryRecoveryPair | RecoveryRetry | RecoveryShrink | RecoveryRefetch | RecoveryFixRouteLabel | RecoveryOpenExisting | RecoveryRenameSelf-contained recovery hint, branching on `kind`. Attached to error envelopes the agent can self-correct on: `pair` for `token_revoked_post_claim` 401s (#1284), `retry` for 429s, `shrink` for too-large / quota-exceeded 413s, `refetch` for 412 `version_mismatch` / `invalid_if_match` / 428 `precondition_required`, `fix_route_label` for 403 `forbidden_write`, `open_existing` for 409 `duplicate_remix`, and `rename` for 409 `manifest_id_immutable` / `manifest_id_conflict`. Every `instructions` string is a single-paragraph, action-first walk-through. Inlined per ADR 2026-05-06-agent-facing-error-surfaces-self-contain-the-fix.
Show propertiesHide properties
One of:
RecoveryPair
kindstringrequiredAllowed:
pairstartstring<uri>requiredverification_urlstring<uri>requiredinstructionsstringrequiredRecoveryRetry
kindstringrequiredAllowed:
retryretry_after_secintegerrequiredSeconds to wait before retrying. Matches the `RateLimit-Reset` and `Retry-After` headers on the same response.
min 0
retry_after_urlstring<uri>requiredAbsolute URL to retry verbatim once the wait elapses.
instructionsstringrequiredRecoveryShrink
kindstringrequiredAllowed:
shrinkfieldstringrequiredWhich input tripped the cap.
Allowed:
moduleuistylesdescriptiontextstructured_dataasseteditssecretpayloadsize_bytesintegerrequiredmin 0
cap_bytesintegerrequiredmin 0
instructionsstringrequiredRecoveryRefetch
kindstringrequiredAllowed:
refetchrefetch_urlstring<uri>requiredAbsolute URL to GET for the fresh ETag before retrying with a corrected If-Match.
instructionsstringrequiredRecoveryFixRouteLabel
kindstringrequiredAllowed:
fix_route_labelinstructionsstringrequiredApp-code recovery: the fix is in the route declaration, NOT in the request. Retrying the same request will fail again.
RecoveryOpenExisting
kindstringrequiredAllowed:
open_existingexisting_app_idstringrequiredexisting_urlstring<uri>requiredinstructionsstringrequiredRecoveryRename
kindstringrequiredAllowed:
renameinstructionsstringrequired404App not found.
okbooleanrequiredAllowed:
falseerrorobjectrequiredShow propertiesHide properties
kindstringrequiredStable enum-shaped error key. Branch on this for recovery flows.
Allowed:
not_foundunknown_operationoperation_not_foundoperation_failedunauthorizedtoken_expiredforbiddenforbidden_writestorage_quota_exceededinvalid_moduleinvalid_uiinvalid_route_schemainvalid_routes_shapeinvalid_manifest_exportsinvalid_requestinvalid_inputinvalid_outputunexpected_keyscapability_deniedcapability_errorexecutor_errorinvalid_call_shapealready_claimedduplicate_remixmanifest_not_foundpayload_too_largemodule_too_largeui_too_largedescription_too_longmissing_descriptioninvalid_descriptionrate_limitedtoo_many_requestsexpiredalready_approvedanon_not_remixableinvalid_if_matchprecondition_requiredversion_mismatchold_string_not_foundold_string_not_uniqueedits_too_largemanifest_id_conflictmanifest_id_immutabletext_too_largestructured_data_too_largeapp_not_foundasset_too_largeasset_count_exceededasset_quota_exceededasset_invalid_keyasset_invalid_content_typeasset_errorinvalid_idsse_cookie_expiredinvalid_secret_namesecret_too_largesecret_already_existsinvalid_iconteam_slug_takenalready_membergrantee_not_foundinvite_cap_reachedread_onlyhandle_takeninvalid_handlename_takenapp_unclaimedlink_cap_reachedgrantee_is_owneralready_invitedmessagestringreasonstringSet on 401s to distinguish token failure modes when finer detail is needed. `token_revoked_post_claim` is the post-#1284 surface for a bld_app_* that was invalidated by a claim — the `recovery` field on the same `error` object carries the self-contained pairing-recovery hint the agent should follow instead of creating a new app.
Allowed:
token_malformedtoken_unknowntoken_revokedtoken_revoked_post_claimrecoveryRecoveryPair | RecoveryRetry | RecoveryShrink | RecoveryRefetch | RecoveryFixRouteLabel | RecoveryOpenExisting | RecoveryRenameSelf-contained recovery hint, branching on `kind`. Attached to error envelopes the agent can self-correct on: `pair` for `token_revoked_post_claim` 401s (#1284), `retry` for 429s, `shrink` for too-large / quota-exceeded 413s, `refetch` for 412 `version_mismatch` / `invalid_if_match` / 428 `precondition_required`, `fix_route_label` for 403 `forbidden_write`, `open_existing` for 409 `duplicate_remix`, and `rename` for 409 `manifest_id_immutable` / `manifest_id_conflict`. Every `instructions` string is a single-paragraph, action-first walk-through. Inlined per ADR 2026-05-06-agent-facing-error-surfaces-self-contain-the-fix.
Show propertiesHide properties
One of:
RecoveryPair
kindstringrequiredAllowed:
pairstartstring<uri>requiredverification_urlstring<uri>requiredinstructionsstringrequiredRecoveryRetry
kindstringrequiredAllowed:
retryretry_after_secintegerrequiredSeconds to wait before retrying. Matches the `RateLimit-Reset` and `Retry-After` headers on the same response.
min 0
retry_after_urlstring<uri>requiredAbsolute URL to retry verbatim once the wait elapses.
instructionsstringrequiredRecoveryShrink
kindstringrequiredAllowed:
shrinkfieldstringrequiredWhich input tripped the cap.
Allowed:
moduleuistylesdescriptiontextstructured_dataasseteditssecretpayloadsize_bytesintegerrequiredmin 0
cap_bytesintegerrequiredmin 0
instructionsstringrequiredRecoveryRefetch
kindstringrequiredAllowed:
refetchrefetch_urlstring<uri>requiredAbsolute URL to GET for the fresh ETag before retrying with a corrected If-Match.
instructionsstringrequiredRecoveryFixRouteLabel
kindstringrequiredAllowed:
fix_route_labelinstructionsstringrequiredApp-code recovery: the fix is in the route declaration, NOT in the request. Retrying the same request will fail again.
RecoveryOpenExisting
kindstringrequiredAllowed:
open_existingexisting_app_idstringrequiredexisting_urlstring<uri>requiredinstructionsstringrequiredRecoveryRename
kindstringrequiredAllowed:
renameinstructionsstringrequired409A secret with this name already exists; use PUT to replace, or DELETE it first.
okbooleanrequiredAllowed:
falseerrorobjectrequiredShow propertiesHide properties
kindstringrequiredStable enum-shaped error key. Branch on this for recovery flows.
Allowed:
not_foundunknown_operationoperation_not_foundoperation_failedunauthorizedtoken_expiredforbiddenforbidden_writestorage_quota_exceededinvalid_moduleinvalid_uiinvalid_route_schemainvalid_routes_shapeinvalid_manifest_exportsinvalid_requestinvalid_inputinvalid_outputunexpected_keyscapability_deniedcapability_errorexecutor_errorinvalid_call_shapealready_claimedduplicate_remixmanifest_not_foundpayload_too_largemodule_too_largeui_too_largedescription_too_longmissing_descriptioninvalid_descriptionrate_limitedtoo_many_requestsexpiredalready_approvedanon_not_remixableinvalid_if_matchprecondition_requiredversion_mismatchold_string_not_foundold_string_not_uniqueedits_too_largemanifest_id_conflictmanifest_id_immutabletext_too_largestructured_data_too_largeapp_not_foundasset_too_largeasset_count_exceededasset_quota_exceededasset_invalid_keyasset_invalid_content_typeasset_errorinvalid_idsse_cookie_expiredinvalid_secret_namesecret_too_largesecret_already_existsinvalid_iconteam_slug_takenalready_membergrantee_not_foundinvite_cap_reachedread_onlyhandle_takeninvalid_handlename_takenapp_unclaimedlink_cap_reachedgrantee_is_owneralready_invitedmessagestringreasonstringSet on 401s to distinguish token failure modes when finer detail is needed. `token_revoked_post_claim` is the post-#1284 surface for a bld_app_* that was invalidated by a claim — the `recovery` field on the same `error` object carries the self-contained pairing-recovery hint the agent should follow instead of creating a new app.
Allowed:
token_malformedtoken_unknowntoken_revokedtoken_revoked_post_claimrecoveryRecoveryPair | RecoveryRetry | RecoveryShrink | RecoveryRefetch | RecoveryFixRouteLabel | RecoveryOpenExisting | RecoveryRenameSelf-contained recovery hint, branching on `kind`. Attached to error envelopes the agent can self-correct on: `pair` for `token_revoked_post_claim` 401s (#1284), `retry` for 429s, `shrink` for too-large / quota-exceeded 413s, `refetch` for 412 `version_mismatch` / `invalid_if_match` / 428 `precondition_required`, `fix_route_label` for 403 `forbidden_write`, `open_existing` for 409 `duplicate_remix`, and `rename` for 409 `manifest_id_immutable` / `manifest_id_conflict`. Every `instructions` string is a single-paragraph, action-first walk-through. Inlined per ADR 2026-05-06-agent-facing-error-surfaces-self-contain-the-fix.
Show propertiesHide properties
One of:
RecoveryPair
kindstringrequiredAllowed:
pairstartstring<uri>requiredverification_urlstring<uri>requiredinstructionsstringrequiredRecoveryRetry
kindstringrequiredAllowed:
retryretry_after_secintegerrequiredSeconds to wait before retrying. Matches the `RateLimit-Reset` and `Retry-After` headers on the same response.
min 0
retry_after_urlstring<uri>requiredAbsolute URL to retry verbatim once the wait elapses.
instructionsstringrequiredRecoveryShrink
kindstringrequiredAllowed:
shrinkfieldstringrequiredWhich input tripped the cap.
Allowed:
moduleuistylesdescriptiontextstructured_dataasseteditssecretpayloadsize_bytesintegerrequiredmin 0
cap_bytesintegerrequiredmin 0
instructionsstringrequiredRecoveryRefetch
kindstringrequiredAllowed:
refetchrefetch_urlstring<uri>requiredAbsolute URL to GET for the fresh ETag before retrying with a corrected If-Match.
instructionsstringrequiredRecoveryFixRouteLabel
kindstringrequiredAllowed:
fix_route_labelinstructionsstringrequiredApp-code recovery: the fix is in the route declaration, NOT in the request. Retrying the same request will fail again.
RecoveryOpenExisting
kindstringrequiredAllowed:
open_existingexisting_app_idstringrequiredexisting_urlstring<uri>requiredinstructionsstringrequiredRecoveryRename
kindstringrequiredAllowed:
renameinstructionsstringrequiredRequest
curl -X POST "https://charm.ing/app/string/secrets" \
-H "Authorization: Bearer YOUR_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"name": "string",
"value": "string"
}'const response = await fetch("https://charm.ing/app/string/secrets", {
method: "POST",
headers: {
"Authorization": "Bearer YOUR_TOKEN",
"Content-Type": "application/json"
},
body: JSON.stringify({
"name": "string",
"value": "string"
})
});import requests
response = requests.post(
"https://charm.ing/app/string/secrets",
headers={
"Authorization": "Bearer YOUR_TOKEN",
"Content-Type": "application/json"
},
json={
"name": "string",
"value": "string"
},
)Response
{
"ok": true
}{
"ok": false,
"error": {
"kind": "not_found",
"message": "string",
"reason": "token_malformed",
"recovery": {
"kind": "pair",
"start": "<uri>",
"verification_url": "<uri>",
"instructions": "string"
}
}
}{
"ok": false,
"error": {
"kind": "not_found",
"message": "string",
"reason": "token_malformed",
"recovery": {
"kind": "pair",
"start": "<uri>",
"verification_url": "<uri>",
"instructions": "string"
}
}
}{
"ok": false,
"error": {
"kind": "not_found",
"message": "string",
"reason": "token_malformed",
"recovery": {
"kind": "pair",
"start": "<uri>",
"verification_url": "<uri>",
"instructions": "string"
}
}
}{
"ok": false,
"error": {
"kind": "not_found",
"message": "string",
"reason": "token_malformed",
"recovery": {
"kind": "pair",
"start": "<uri>",
"verification_url": "<uri>",
"instructions": "string"
}
}
}{
"ok": false,
"error": {
"kind": "not_found",
"message": "string",
"reason": "token_malformed",
"recovery": {
"kind": "pair",
"start": "<uri>",
"verification_url": "<uri>",
"instructions": "string"
}
}
}