EchoRelay MCP server

• Registry namedev.echorelay/managementverified in the MCP registry

The registry name sits under echorelay.dev. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-26
• Tools80
• Server calls itselfechorelay-mcp
• Server version1.15.0
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 758 ms.

• Whether its tools do the product's job has not been judged yet.
• Checked on 2 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
• Answeredmeasuring2 of the 7 daily checks it takes to print a share
• Median first answer816 ms
• Space in an agent's context≈ 29,953 tokensthe definitions of all its tools (80), which an agent carries on every turn
• Tool definitionsA · 98 of 100
• Typed results0 of 80 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 10 of 80

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• get_project

  Get the EchoRelay project this token is scoped to: id, slug, name, caller-facing API base URL, whether the token has edit access, and the request-log hot-tier retention window.

• list_lines

  List every line in the project: returns `{lines: []}` in one call, with no paging. Each entry reports `lineKey`, `name`, `active`, `docsShared`, `publishedAt`, `endpointCount`, and its draft state (`draftRevision`, `hasDraft`…

• list_endpoints

  List the endpoints under one line, identified by `lineKey`; returns `{lineKey, endpoints: []}` with no paging. Each entry reports `id`, `name`, `path`, `httpMethod`, `strict`, `mock`, and `targetCount` — not the endpoint's full body…

• get_endpoint

  Get one endpoint's full document by `lineKey` and `endpointId`: `id`, `lineKey`, `name`, `url`, `httpMethod`, `strict`, `rateLimit`, `allowedIPs`, `idempotencyEnabled`, `senderSignature` (`{scheme, credentialId}`, plus `custom` for the…

• get_config

  Get the project's published relay configuration — the exact JSON the EchoRelay Framework consumes. Includes pendingPublish with its frozen, redacted config when one is scheduled.

• config_diff

  Preview what Save & Publish (or the pending scheduled publish, if one exists) would change: added/removed/changed lines, and within each changed line the added/removed/changed endpoints and targets, plus any project-level setting change…

• list_config_revisions

  List every retained revision of one line, newest first, so a target revision can be picked for rollback_config. Returns `{revisions: []}` with no paging; each entry has `revision`, `publishedAt`, `current`, and `active`. Errors when…

• get_line_draft

  Read one line draft, its optimistic revision, preview, and schedule.

• preview_line_draft

  Preview one line draft without publishing it.

• publish_line_draft

  Publish one line draft now and clear only its schedule.

• discard_line_draft

  Discard every unpublished change and schedule for one line.

• discard_draft_endpoint

  Discard one endpoint change from a line draft.

• schedule_line_publish

  Schedule one non-empty line draft. Active subscribers required.

• cancel_line_publish

  Cancel one line schedule before its two-minute lock.

• rollback_config

  Preview or apply publishing a retained line revision over what is currently published, clearing any pending schedule. Without confirmRevision this only returns the diff (the redacted change-gate preview, same shape as config_diff) between…

• get_billing

  Get the project's credit balances (paid + testing) and which ledger it settles on. `billingModel` is `prepaid` (metered against the credit balance) or `invoiceable` (an Enterprise account, settled on the contract — its credit fields read…

• set_burst_opt_in

  Enable or disable the auto-decaying burst window for live traffic and publish the change immediately. When enabled, brief spikes a little above your steady RPM cap are absorbed at the normal credit rate (no surcharge, no burst SKU)…

• set_rpm_ceiling

  Set or clear a self-set ceiling on this project's own effective live-traffic RPM (Traffic shaping) — for when your origin can't take the throughput your plan grants. Never plan-gated: the ceiling can only LOWER your effective RPM below…

• set_outbound_allowlist

  Narrow the project's outbound host allowlist — the hosts a target may point at. The current list is on get_project as `outboundHostAllowlist` (empty means any public host). This tool may only narrow it: `patterns` must be a strict subset…

• create_line

  Create a new versioned line. A new line has no endpoints, so creating one publishes nothing and serves no traffic yet — add an endpoint, which publishes the line with it. Draft mode requires draftRevision 0. Requires edit access.

• delete_line

  Delete a line and every endpoint under it, immediately or by staging the removal in the line's draft with commitMode "draft" and draftRevision (returns `{draft}`, discardable via discard_line_draft, instead of deleting right away). An…

• activate_line

  Activate and immediately publish an inactive line so it serves traffic again. Blocked at the active-line cap — deactivate another line first. Requires edit access.

• deactivate_line

  Take a line off the data plane immediately (callers get 404) without deleting it — endpoints/targets/config are preserved and it can be reactivated later. A deliberate action; live traffic is never auto-disabled. Requires edit access.

• duplicate_line

  Copy a line and all its endpoints/targets/rules into a new line key — build v2 from v1. The copy is saved inactive and remains off the data plane; edit it, then activate_line when ready. Requires edit access.

• set_docs_shared

  Turn the line's public OpenAPI docs on or off. When enabled, the line's spec is published at docs.{baseDomain}/{slug}/{lineKey} (and …/openapi.json); when disabled those URLs return 404. The `docsShared` field on each line read…

• create_endpoint

  Create an endpoint under a line. Defaults to immediate publish; draft mode requires draftRevision. scheduledAt stages the line draft then schedules it. Requires edit access.

• generate_line_draft

  Generate a draft endpoint under a line from a sample inbound request and a description of the target: infers the inbound body schema from the sample, reads the target's method/URL/fields from an OpenAPI document (targetDocument) or a bare…

• update_endpoint

  Update an endpoint immediately or by staging the change in its line draft with commitMode "draft" and draftRevision; the patch is merged field-by-field onto the endpoint's current values, so omitted keys keep their values. Targets are…

• delete_endpoint

  Delete an endpoint and its targets, immediately or by staging the removal in the line's draft with commitMode "draft" and draftRevision (returns `{draft}` instead of deleting right away). An immediate delete publishes a new revision…

• default_endpoint_template

  Return a canonical minimal-valid endpoint JSON for a fresh line. POST it verbatim to create_endpoint to land an immediately-working endpoint, then customise. It comes back with `mock: true`: it answers callers with its own canned body and…

• dry_run_endpoint

  Validate an endpoint document without writing it. Returns either {ok: true, resolved: <Framework config slice>} or {ok: false, errors: {...}}. Pass endpointId to dry-run a PATCH against an existing endpoint; omit it to dry-run a create…

• list_members

  List accepted and pending members of this project, plus the owner (role "owner"), each with `id`, `email`, `name`, `role`, and whether the invite has been accepted. Returns `{members: [], count, seatCap, seatsUsed}` with no paging…

• invite_member

  Invite a person by email to collaborate on this project. Returns the new invitation record; the invitee receives an email with an accept link. Enforces the seat cap for the plan tier. Owner only.

• remove_member

  Remove a member (accepted or pending) from this project by memberId or email, matching the first record found; returns `{message, email}`. This deletes the membership record outright with no undo, so getting the person back onto the…

• set_member_role

  Change a member's role between editor, viewer, and billing. Identify the member by their member ID or email (from list_members); the project owner's own role cannot be changed. Returns the updated member record. Owner only.

• resend_invite

  Re-send the invitation email for a still-pending invite, by member ID or email (from list_members). The original accept link is reused. Already-accepted members are rejected. Owner only.

• list_api_keys

  List the project's inbound API keys as metadata only — the secret plaintext is never returned, only `id`, `name`, `mode`, `prefix`, `createdAt`, `createdBy`, `lastUsedAt`, `expiresAt`, `revokedAt`, `successorId`, `predecessorId`, and…

• create_api_key

  Mint an inbound relay (data-plane) API key for callers to send traffic to this project. Its `er_live_` or `er_test_` secret authenticates relay requests; it cannot call management MCP or REST. Returns the plaintext exactly once — store it…

• rotate_api_key

  Mint a linked successor for an existing key. Returns the successor plaintext exactly once — store it now. The predecessor stays valid through its overlap window so callers can swap without downtime. Owner anywhere, editor on own keys.

• reveal_rotation_successor

  One-shot retrieval of the plaintext for a successor minted by the auto-rotation scheduler (not by rotate_api_key — that returns its own plaintext directly). Decrypts the at-rest ciphertext, returns it once, then destroys it; a second call…

• revoke_api_key

  Revoke a key immediately: it stops authenticating as soon as the change reaches the relay, with no overlap window, so callers still using it start failing. To replace a key without downtime, use rotate_api_key instead; if the key already…

• get_key_policy

  Return the project's key policy: `defaultKeyTtlDays` (what create_api_key uses when `ttlDays` is omitted), plus `maxKeyTtlDays` and `editorsMayCreateNonExpiringKeys`, the limits create_api_key enforces when minting a key. Read-only; use…

• set_key_policy

  Owner-only. Edit the project's key policy. Only fields present in the patch are touched. Editors calling this get an error — use get_key_policy to read.

• list_credentials

  List the project's saved credentials — reusable target-auth secrets that can be referenced from any number of targets instead of entering auth inline per target. `auth` is redacted (secret fields never returned, even encrypted — see…

• create_credential

  Save a new reusable credential, sealed with the project's encryption key at write time. Neither this call nor any later read ever returns the secret back — reference it from a target by id (see create_endpoint/update_endpoint's…

• update_credential

  Rename a credential and/or rotate its secret, publishing the change immediately so every target that uses this credential picks it up right away. Omit a secret field (or the whole `auth` object) to keep the existing value — the vault can…

• delete_credential

  Delete a saved credential. Blocked (not a permission or not-found error — a validation error) while any target still references it; repoint or remove those targets first.

• list_requests

  List inbound API requests the relay has processed for this project, newest first. Hot-tier window is the project's requestLogRetentionDays (see get_project). Optional filters narrow the result. Returns {total, limit, offset, rows[]} where…

• get_request

  Get one inbound request envelope + every per-target delivery attempt made on the way out (success / permanent_failure / retry_scheduled / dlq). The request and each attempt carry configVersion, the published config that authorised them; 0…

• get_receipts

  Get every target this request fanned out to, each with its delivery receipt or the reason it has none. A still-moving delivery (queued/retrying) answers from the live tracking copy, a terminal one (delivered/failed) from durable storage…

• get_metrics

  Aggregate request metrics for this project over a time window — volume, error rate and p50/p95/p99 latency, bucketed for charting. By default the series cover inbound requests; pass `targetId` to slice over one outbound target's…

• list_dlq

  List entries currently in this project's dead-letter queue, newest first. One inbound request fans out per-target, so a single request may produce several DLQ entries, one per target that didn't accept it (different `targetId`s). Returns…

• get_dlq_entry

  Get DLQ entries by entry id (`{ms}-{seq}`, as returned by list_dlq's `id`) or by `requestId`. `requestId` is the durable handle — stable across a retry, unlike `id`, which changes every time an entry is replayed and later dead-letters…

• retry_dlq_entry

  Re-enqueue a DLQ entry to the main relay stream and delete it from the DLQ. A replay is billed like any relay — it charges the entry's original credit cost to the project before re-sending; if the balance is too low the entry stays in the…

• discard_dlq_entry

  Permanently delete a DLQ entry without retrying it: the delivery is never re-sent and the entry cannot be restored. Use retry_dlq_entry instead when the delivery should still reach its target. The inbound request stays answerable through…

• list_subscription_plans

  List the available subscription plans (Free, Pro, Scale) with monthly EUR price, credit allowance, per-project RPM cap, and how many active projects the plan includes. Read-only.

• list_credit_packs

  List the prepaid credit packs available to purchase, returned as a bare array of `{credits, eurCents, usdCents, plnGrosze, welcomeEligible}` objects — not wrapped in an envelope, and not paginated (the whole catalog every time)…

• list_addons

  List the optional add-on subscriptions (RPM upgrades, extra team seats, extended log retention, extra file-delivery storage in +5 GB blocks, …). Each entry is monthly, renews every 30 days until cancelled, and carries `scope` (per_account…

• get_subscription

  Get the project owner's current subscription: plan, active flag, period start/end, cancel-at-period-end flag, external Paddle subscription id, and whether a payment method is on file at the provider. Owner-only; requires a token minted…

• preview_plan_change

  Preview what would happen if change_plan were called with this plan: the immediate-charge amount (cents), the next-invoice amount, the effective date, and the kind (`applied` for in-cycle upgrade, `scheduled` for at-period-end downgrade /…

The first 60 of 80, as the server listed them.