7.9 KiB
ECHO — Obsidian Local REST API Reference
Server: https://echoapi.alwisp.com (reverse proxy → backend Obsidian Local REST API)
Auth header: Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab
The endpoint has a valid TLS certificate — -k is not required. Paths address the vault at its root.
Reading Files
# Read any file by vault path
curl -s \
-H "Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab" \
"https://echoapi.alwisp.com/vault/_agent/context/current-context.md"
Returns raw file content (text/markdown). On 404, the file does not exist.
# Read a specific heading's content only
curl -s \
-H "Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab" \
"https://echoapi.alwisp.com/vault/_agent/memory/semantic/operator-preferences.md/heading/Operator"
Nested headings: separate levels with :: (URL-encode spaces as %20):
/vault/path/to/note.md/heading/Work%3A%3AMeetings
Listing Directories
# List contents of a directory (trailing slash required)
curl -s \
-H "Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab" \
"https://echoapi.alwisp.com/vault/_agent/sessions/"
Returns JSON: { "files": [...], "folders": [...] }.
Appending Content (POST)
POST appends to the end of an existing file. Creates the file if it doesn't exist.
cat > /tmp/obs_entry.md << 'OBSEOF'
- 2026-06-05: your entry here
OBSEOF
curl -s -X POST \
-H "Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab" \
-H "Content-Type: text/markdown" \
--data-binary @/tmp/obs_entry.md \
"https://echoapi.alwisp.com/vault/inbox/captures/inbox.md"
Creating or Overwriting Files (PUT)
PUT creates a new file or fully overwrites an existing one. Intermediate directories are created automatically.
cat > /tmp/obs_file.md << 'OBSEOF'
---
type: session-log
status: complete
created: 2026-06-05
updated: 2026-06-05
tags: [agent, session]
agent_written: true
source_notes: []
---
# content here
## Related
- [[projects/active/some-project]]
OBSEOF
curl -s -X PUT \
-H "Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab" \
-H "Content-Type: text/markdown" \
--data-binary @/tmp/obs_file.md \
"https://echoapi.alwisp.com/vault/_agent/sessions/2026-06-05-1430-my-session.md"
Patching a Specific Section (PATCH)
PATCH edits inside a file without rewriting it. Target and operation are set via headers.
Append under a heading
Heading targets must be the FULL heading path, ::-delimited from the top-level heading. A bare subheading name returns 400 invalid-target (errorCode 40080). Example: ## Fact / Pattern nested under # Operator Preferences → Target: Operator Preferences::Fact / Pattern. Percent-encode non-ASCII characters (e.g. H%C3%A9llo); spaces are fine.
cat > /tmp/obs_patch.md << 'OBSEOF'
Jason prefers concise status updates — lead with the decision.
OBSEOF
curl -s -X PATCH \
-H "Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab" \
-H "Operation: append" \
-H "Target-Type: heading" \
-H "Target: Operator Preferences::Fact / Pattern" \
-H "Content-Type: text/markdown" \
--data-binary @/tmp/obs_patch.md \
"https://echoapi.alwisp.com/vault/_agent/memory/semantic/operator-preferences.md"
Discover heading / block / frontmatter targets
When unsure of the exact heading path, GET the note with the document-map Accept header:
curl -s \
-H "Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab" \
-H "Accept: application/vnd.olrapi.document-map+json" \
"https://echoapi.alwisp.com/vault/_agent/memory/semantic/operator-preferences.md"
Returns { "headings": [...], "blocks": [...], "frontmatterFields": [...] }. Copy the heading string verbatim into Target.
Replace a heading's content entirely
Same call with Operation: replace — e.g. to refresh a project's Project Name::Status.
Prepend under a heading
Same call with Operation: prepend.
Patch a frontmatter field
curl -s -X PATCH \
-H "Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab" \
-H "Operation: replace" \
-H "Target-Type: frontmatter" \
-H "Target: updated" \
-H "Content-Type: application/json" \
--data '"2026-06-05"' \
"https://echoapi.alwisp.com/vault/projects/active/vault-foundation.md"
Searching
curl -s -X POST \
-H "Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab" \
"https://echoapi.alwisp.com/search/simple/?query=weekly+review"
Returns an array of { filename, score, matches: [{ context, match }] }.
Deleting Files
curl -s -X DELETE \
-H "Authorization: Bearer 241265fbe6830934a9a4ad3e69335f64a42153b663aa5b0017cb1ea1217b2bab" \
"https://echoapi.alwisp.com/vault/inbox/imports/old-note.md"
Only on explicit operator request. Deletion is destructive.
URL-Encoding Notes
- Path separators (
/) in the vault path are literal — do not encode them. - Spaces in filenames or heading targets in a URL: use
%20. - Nested heading levels in a URL path: use
%3A%3Afor::. - Heading text in the
Target:header: the full heading path joined by::(e.g.Operator Preferences::Fact / Pattern), no#; spaces are fine; percent-encode non-ASCII.
Memory Routing Map
| Situation | Vault path | Method |
|---|---|---|
| Quick capture / unsorted | inbox/captures/inbox.md (date-prefixed line) |
POST |
| Raw imported material | inbox/imports/ |
PUT |
| Operator preference / durable fact | _agent/memory/semantic/operator-preferences.md |
PATCH |
| Other durable facts, patterns | _agent/memory/semantic/<slug>.md |
PUT |
| Event record (what happened) | _agent/memory/episodic/<slug>.md |
PUT |
| Short-lived, time-boxed state | _agent/memory/working/<slug>.md |
PUT |
| Task-scoped context / focus | _agent/context/current-context.md |
PATCH / PUT |
| Working-session log | _agent/sessions/YYYY-MM-DD-HHMM-<slug>.md |
PUT |
| Long-running project state | projects/<lifecycle>/<slug>.md (lifecycle: incubating → active → on-hold/archived; folder and status: MUST agree) |
PUT + PATCH |
| Ongoing area of responsibility (standing domain, no end state) | areas/<domain>/<slug>.md (<domain>: business/personal/learning/systems) |
PUT |
| Non-obvious decision (ADR) | decisions/by-date/YYYY-MM-DD-<slug>.md (mirror only into an existing project note's ## Key Decisions; otherwise skip) |
PUT |
| Person context | resources/people/<name>.md |
PUT / PATCH |
| Company / organization context | resources/companies/<slug>.md |
PUT / PATCH |
| Concept / reference note | resources/concepts/ or resources/references/ |
PUT |
| Meeting notes / call recap | resources/meetings/YYYY-MM-DD-<slug>.md |
PUT |
| Skill / plugin capability entry (catalog, not build work) | _agent/skills/active/<slug>.md (→ archived/ when retired) |
PUT |
| Daily activity / Agent Log | journal/daily/YYYY-MM-DD.md |
POST / PATCH |
| Journal rollup | journal/{weekly/YYYY-Www,monthly/YYYY-MM,quarterly/YYYY-Qn,annual/YYYY}.md (weekly = opt-in on first session of a new ISO week; monthly = offered with Vault Health; quarterly/annual = manual) |
PUT |
| Vault-health audit (agent self-maintenance) | _agent/health/YYYY-MM-vault-health.md (monthly; NOT a journal entry) |
PUT |
| Session-end orientation pointer | _agent/heartbeat/last-session.md (one line, overwritten each session end) |
PUT |
| Bootstrap marker (plugin-owned) | _agent/echo-vault.md (schema_version, bootstrap date) — the "is this vault set up?" probe |
GET / PUT |
Slug rules: kebab-case, ASCII, ~40 chars max. Every file carries canonical frontmatter (see vault-layout.md).