DOCUMENTATIONv2

PUT

User Profile Data

Change password

/api/v2/me/password

AUTHENTICATIONBearer token · profile:writeAUTHORITATIVE OWNERidentity-profile · identity-serviceCONTRACT AUTHORITYGenerated Rust OpenAPISTATUSSource ready · production listed

PURPOSE + BUSINESS CONTEXT

Require bearer authorization, current-password proof, conditional authenticator step-up, and revoke active sessions.

WHEN THIS CALL IS USEFUL

Use from an authenticated account settings workflow after collecting current-password proof and, when TOTP is enabled, a fresh PASSWORD_CHANGE step-up.

OUTCOME · Revise and reconcile

What changes

Changes the password and revokes all interactive sessions, including the bearer session used for the request.

WHY IT MATTERS

Gives people and agents a contract-backed way to advance change password.
Separates subject identity, consent, evidence, provider output, review, issuer credentials, and relying-party acceptance instead of collapsing them into a universal trust score.

ISOLATION + AUTHORITY

Bearer subject, tenant, purpose, policy version, role, issuer, reviewer, provider, and relying-party boundaries remain distinct. The response or transition grants no payment, custody, settlement, publisher, matching, or trading authority and must not expose regulated evidence beyond the live schema.

BEFORE YOU CALL

Authenticate at the documented boundary: bearer+scope.
Supply the required current_password (body), new_password (body) exactly as defined by the live contract.
Use one Idempotency-Key only for retries of the same byte-equivalent logical mutation.
Resolve the applicable purpose, policy version, consent or role basis, and required assurance before relying on this result.

WHAT TO DO NEXT

Re-read change password using the canonical identifier returned by this operation.
Reconcile an ambiguous response with the same idempotency key before attempting another mutation.
Use the returned lifecycle state and policy version to choose the next least-privilege trust action; do not infer a missing stage.

AGENT GUIDANCE

Use change password only for the purpose and lifecycle stage described by this operation; do not treat it as authority for an adjacent action.
Supply the required current_password (body), new_password (body) exactly as defined by the live contract.
Treat policy availability, consent, evidence capture, completed checks, review, decision, credential issuance, validity, and relying-party acceptance as separate facts.
After a timeout or conflict, read authoritative state before deciding whether an equivalent retry is safe.

MACHINE CONTRACT

The exact deployed parameters, schemas, responses, security requirements, and Hybrid-Chain agent metadata are authoritative at this operation's production OpenAPI JSON Pointer. The readable tables below add integration guidance; the deployed OpenAPI controls if guidance and the machine contract ever differ.

Open the authoritative production contract ↗

EXTENDED INTEGRATION GUIDANCE

Readable request and response reference

Examples illustrate integration intent; the referenced OpenAPI operation and component schemas define the executable shape.

PARAMETERS

Headers, path, query, and body

NAMELOCATIONPRESENCETYPE / RULES / PURPOSE

AuthorizationheaderRequired

Bearer tokenCredential containing the profile:write scope.EXAMPLEBearer hc_live_…

Idempotency-KeyheaderRequired

ASCII string · 1–128Caller-generated key reused for every retry of the same logical mutation.EXAMPLElaunch-treasury-v1-001

Content-TypeheaderRequired

application/jsonSigned mutations accept canonical JSON only.EXAMPLEapplication/json

Content-DigestheaderRequired

RFC 9530 SHA-256 digestDigest of the exact transmitted body bytes.EXAMPLEsha-256=:47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=:

Signature-InputheaderRequired

RFC 9421 signature parametersCovers @method, @path, content-digest, content-type, and idempotency-key; includes keyid, nonce, created, and expires.EXAMPLEsig1=("@method" "@path" "content-digest" "content-type" "idempotency-key");created=1786582800;expires=1786583100;nonce="01J…";keyid="machine-prod"

SignatureheaderRequired

Ed25519 HTTP Message SignatureSignature made by an active public key registered to the authenticated client.EXAMPLEsig1=:base64-signature:

current_passwordbodyRequired

stringCurrent account password used only as reauthentication proof.

new_passwordbodyRequired

printable string · 12–128Policy-compliant replacement that must differ from the current password.

step_up_tokenbodyOptional

one-use hcsu_ tokenFresh PASSWORD_CHANGE authorization required when TOTP is enabled.

REQUEST

JSON body example

{
  "current_password": "Correct-Horse#2048",
  "new_password": "A-Different#Password2048",
  "step_up_token": "hcsu_…"
}

STABLE ERROR CODES

Branch on the code, then follow the recovery action

These codes are published by the authoritative gateway contract for this endpoint. Treat message as safe diagnostic text; integrations should branch on code and HTTP status.

STATUSCODEMEANING

400invalid_jsonThe JSON body is malformed or fails the published identity-security schema.

400invalid_security_requestThe session, scope, public key, proof, or purpose-bound security request is invalid.

401invalid_credentialsThe bearer, client assertion, or proof-of-possession credential is invalid.

403step_up_requiredFresh purpose-bound authenticator verification or stronger authority is required.

404signing_key_not_foundThe requested signing-key or workload-client resource was not found.

409security_conflictThe requested identity-security transition conflicts with current state.

503identity_security_unavailableThe authoritative Identity security service is temporarily unavailable.

RESPONSES

Status and payload examples

200Password replaced and sessions revoked.Mutation completed · JSON RESPONSE+

{
  "status": "PASSWORD_UPDATED",
  "sessions_revoked": true
}

INTEGRATION DECISION

CALLER ACTION: Accept the returned representation or receipt, then re-read change password using the canonical identifier returned by this operation.
RETRY SAFETY: Do not repeat a successful mutation merely to confirm it. For one logical mutation, retain the same Idempotency-Key and byte-equivalent request. Never reuse that key for changed instructions.
STATE RECONCILIATION: Persist returned identifiers, versions, commitments, and receipts. Refresh the specific profile or account projection and compare tenant, profile, lifecycle, and version identifiers before retrying.

400The new password fails policy or matches the current password.Request must change · JSON RESPONSE+

{
  "code": "invalid_security_request",
  "message": "The new password fails policy or matches the current password."
}

INTEGRATION DECISIONinvalid_security_request

CALLER ACTION: Rebuild the request from the live OpenAPI operation and correct the rejected method, media type, header, parameter, or body field.
RETRY SAFETY: Do not retry the same invalid request. For one logical mutation, retain the same Idempotency-Key and byte-equivalent request. Never reuse that key for changed instructions.
STATE RECONCILIATION: Compare the submitted values with the documented constraints before another call. Refresh the specific profile or account projection and compare tenant, profile, lifecycle, and version identifiers before retrying.
ESCALATE WHEN: Escalate when a fresh session resolves to an unexpected tenant or profile, or when an account lifecycle receipt cannot be found after reconciliation.

401The bearer credential is invalid.Authentication required · JSON RESPONSE+

{
  "code": "invalid_credentials",
  "message": "The bearer credential is invalid."
}

INTEGRATION DECISIONinvalid_credentials

CALLER ACTION: Discard the rejected credential, complete the documented authentication or reassertion flow, and rebuild any request signature with fresh timestamps and nonces.
RETRY SAFETY: Retry only with a newly valid credential and fresh replay-protection values. For one logical mutation, retain the same Idempotency-Key and byte-equivalent request. Never reuse that key for changed instructions.
STATE RECONCILIATION: Assume the outcome is unknown only when the connection failed after transmission; otherwise authentication failed before domain work. Refresh the specific profile or account projection and compare tenant, profile, lifecycle, and version identifiers before retrying.
ESCALATE WHEN: Escalate when a fresh session resolves to an unexpected tenant or profile, or when an account lifecycle receipt cannot be found after reconciliation.

403Current-password proof or the required PASSWORD_CHANGE step-up failed.Authority or policy denied · JSON RESPONSE+

{
  "code": "step_up_required",
  "message": "Current-password proof or the required PASSWORD_CHANGE step-up failed."
}

INTEGRATION DECISIONstep_up_required

CALLER ACTION: Verify the exact scope, tenant or workspace membership, owner boundary, step-up purpose, feature policy, and resource eligibility. Never broaden authority automatically.
RETRY SAFETY: Do not retry until the missing authority or policy condition has been deliberately resolved with least privilege.
STATE RECONCILIATION: Confirm the caller and resource resolve to the same authority boundary for the authenticated profile, tenant brand, referral, funding, and account-lifecycle projections.
ESCALATE WHEN: Escalate when a fresh session resolves to an unexpected tenant or profile, or when an account lifecycle receipt cannot be found after reconciliation.

503Identity is unavailable.Dependency unavailable or outcome uncertain · JSON RESPONSE+

{
  "code": "identity_security_unavailable",
  "message": "Identity is unavailable."
}

INTEGRATION DECISIONidentity_security_unavailable

CALLER ACTION: Preserve the exact request and treat the outcome as uncertain until authoritative state proves whether it committed.
RETRY SAFETY: Reconcile before retrying. For one logical mutation, retain the same Idempotency-Key and byte-equivalent request. Never reuse that key for changed instructions. Use bounded backoff with jitter.
STATE RECONCILIATION: Refresh the specific profile or account projection and compare tenant, profile, lifecycle, and version identifiers before retrying.
ESCALATE WHEN: Escalate when a fresh session resolves to an unexpected tenant or profile, or when an account lifecycle receipt cannot be found after reconciliation.

OPERATIONAL NOTES

Security and lifecycle guarantees

Success invalidates the bearer and refresh credential used for the request. Clear all cached session credentials immediately.
The signed-mutation profile requires Idempotency-Key. Preserve the same key and exact body bytes for a transport retry, but reconcile with a fresh login before resending secret-bearing material after an ambiguous outcome.

UPGRADING FROM V1

Legacy calls replaced by this operation

If you maintain an older integration, use this map to find the V2 replacement. Do not translate the old request field-for-field: rebuild it from the V2 parameters and schemas above because identity, authorization, replay protection, and response semantics may have changed.

POST/api/v1/profile/setpasswordPROFILE: Change Password

DOCUMENTATION STATUS

This route is implemented in canonical gateway source and appears in the production OpenAPI snapshot observed 2026-09-11T06:35:11.572Z. Authentication, tenant, feature, venue, and market policy still apply.

Verify the exact production OpenAPI operation ↗Return to the V2 directory ↗