EchoRelay website screenshot

EchoRelay

EchoRelay provides a managed runtime platform for building, deploying, and operating custom API integrations without writing code. It enables teams to connect partner, vendor, and customer APIs quickly, handling retries, credential management, and mapping transformations. Users can design integrations via a visual interface, test with live traffic, and publish changes without downtime, reducing integration maintenance overhead and accelerating time‑to‑value.

EchoRelay is listed with 3 APIs on the APIs.io network, including Keys API, Projects API, and 1 more. Tagged areas include Integration, Platform, Automation, No-Code, and Company.

The EchoRelay catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

EchoRelay’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 30 more developer resources.

37.7/100 thin ▼ -13.3 Agent 41/100 agent ready Heartbeat 98/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →
AccessFreemium
3 APIs 1 MCP Servers
IntegrationPlatformAutomationNo-CodeCompany

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Show this score on your site. Kin Score badge preview for EchoRelay It updates itself when the score changes. Paste this where you link to your API docs:
<a href="https://apis.io/providers/echorelay/"><img src="https://apis.io/badge/echorelay/card.svg" alt="EchoRelay on APIs.io — Kin Score by API Evangelist"></a>
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Raise your score.
Agent readiness — checks not met, largest first (exact, from this profile):
  • Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
  • Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
  • Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
  • A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
  • Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
  • Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
6 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/echorelay/apis.yml: open an issue on github.com/api-evangelist/echorelay to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 4

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

measured — observed by APIs.io (documented)
measured — observed by APIs.io (verified)
measured — observed by APIs.io (published)
measured — observed by APIs.io (published)

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

EchoRelay API

REST API for EchoRelay integration platform

EchoRelay Keys API

The Keys API from EchoRelay — 1 operation(s) for keys.

EchoRelay Projects API

The Projects API from EchoRelay — 1 operation(s) for projects.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

EchoRelay MCP Server

Remote MCP server at mcp.echorelay.dev requiring OAuth.

MCP SERVER

EchoRelay API pricing

Prices published by EchoRelay, read 2026-10-16 from echorelay.dev/pricing.

PlanPrice
Free €0
Pro €19/ month
Scale €99/ month

Plan details, limits and sources →

Billed by: subscription · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

FinOps 1

Cost, billing, and metering signals for API financial operations.

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Echorelay Context

1 classes · 3 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

EchoRelay API Rules

13 rules · 11 errors 1 warnings 1 info

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

PostKeysRequest

3 properties

JSON SCHEMA

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Echorelay Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Echorelay Vulnerability Disclosure

security.txt · contact published

SECURITY

Echorelay Trust Center

SOC 2, PCI DSS, GDPR, CSA STAR

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 12

Authentication, authorization, and security posture

Scroll for all 12

Operate 2

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Other 2

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: echorelay
name: EchoRelay
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  probe_state: none
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://echorelay.dev/og-image.png?v=4
description: EchoRelay provides a managed runtime platform for building, deploying, and operating custom API integrations
  without writing code. It enables teams to connect partner, vendor, and customer APIs quickly, handling retries, credential
  management, and mapping transformations. Users can design integrations via a visual interface, test with live traffic, and
  publish changes without downtime, reducing integration maintenance overhead and accelerating time‑to‑value.
url: https://raw.githubusercontent.com/api-evangelist/echorelay/refs/heads/main/apis.yml
x-type: company
x-source: harvest:g2-catalog
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-16 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-16'
modified: '2026-10-16'
tags:
- Integration
- Platform
- Automation
- No-Code
- Company
tags_raw:
- API
- Integration
- Platform
- Automation
- NoCode
- Company
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/echorelay-plans-pricing.yml
- type: Spectral
  url: rules/echorelay-rules.yml
- type: JSONLD
  url: json-ld/echorelay-context.jsonld
- type: Vocabulary
  url: vocabulary/echorelay-vocabulary.yml
- type: DataModel
  url: data-model/echorelay-data-model.yml
- type: Compliance
  url: https://echorelay.dev/trust
- type: Conformance
  url: conformance/echorelay-conformance.yml
- type: LLMsTxt
  url: llms/echorelay-llms.txt
- type: MCPServer
  url: mcp/echorelay-mcp.yml
- type: SecurityTxt
  url: well-known/echorelay-status-security.txt
- type: SecurityTxt
  url: well-known/echorelay-security.txt
- type: SecurityTxt
  url: well-known/echorelay-mcp-security.txt
- type: SecurityTxt
  url: well-known/echorelay-kb-security.txt
- type: SecurityTxt
  url: well-known/echorelay-docs-security.txt
- type: SecurityTxt
  url: well-known/echorelay-app-security.txt
- type: SecurityTxt
  url: well-known/echorelay-api-security.txt
- type: WellKnown
  url: well-known/echorelay-well-known.yml
- type: Hosts
  url: hosts/echorelay-hosts.yml
- type: Vendors
  url: vendors/echorelay-vendors.yml
- type: StatusPage
  url: https://status.echorelay.dev/
- type: Security
  url: https://echorelay.dev/security
- type: GitHubOrganization
  url: https://github.com/echorelaydev
- type: DeveloperPortal
  url: https://api.echorelay.dev</code
- type: TrustCenter
  url: security/echorelay-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/echorelay-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/echorelay-domain-security.yml
- type: Website
  url: https://echorelay.dev/
- type: Documentation
  url: https://docs.echorelay.dev
- type: APIReference
  url: https://docs.echorelay.dev
- type: GettingStarted
  url: https://echorelay.dev/who-its-for
- type: Support
  url: https://echorelay.dev/faq
- type: Blog
  url: https://echorelay.dev/blog
- type: Pricing
  url: https://echorelay.dev/pricing
- type: SignUp
  url: https://app.echorelay.dev/join
- type: TermsOfService
  url: https://echorelay.dev/terms-of-service
- type: PrivacyPolicy
  url: https://echorelay.dev/privacy
- type: Postman
  url: https://www.postman.com/echorelaydev/workspace/echorelay
apis:
- name: EchoRelay API
  description: REST API for EchoRelay integration platform
  humanURL: https://docs.echorelay.dev/rest
  baseURL: null
  x-coverage:
    state: unreadable
    reason: no-machine-readable-spec
    detail: Documentation pages exist but no OpenAPI, AsyncAPI, GraphQL, gRPC, or WSDL contracts were found.
    evidence:
    - url: https://api.echorelay.dev/openapi.json
      status: 401
    checked: '2026-10-16'
  aid: echorelay:echorelay-api
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/echorelay-openapi-generated.yml
    x-provenance: generated
- aid: echorelay:echorelay-keys-api
  name: EchoRelay Keys API
  description: The Keys API from EchoRelay — 1 operation(s) for keys.
  humanURL: https://docs.echorelay.dev/rest
  baseURL: https://api.echorelay.dev
  tags:
  - Keys
  properties:
  - type: OpenAPI
    url: openapi/echorelay-keys-api-openapi.yml
  - type: JSONSchema
    url: json-schema/echorelay-post-keys-request-schema.json
- aid: echorelay:echorelay-projects-api
  name: EchoRelay Projects API
  description: The Projects API from EchoRelay — 1 operation(s) for projects.
  humanURL: https://docs.echorelay.dev/rest
  baseURL: https://api.echorelay.dev
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/echorelay-projects-api-openapi.yml
  - type: JSONSchema
    url: json-schema/echorelay-post-keys-request-schema.json
x-coverage:
  state: none
  reason: no-developer-program
  method: derived
  generated: '2026-10-16'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company publishes no developer documentation host and no machine-readable contract on its own domain
  evidence:
  - url: https://echorelay.dev/
    status: 200
x-enrichment:
  date: '2026-10-16'
  status: enriched
  artifacts_added: 37
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

EchoRelay API — frequently asked questions

Does EchoRelay have an API?

Yes. APIs.io lists 3 APIs from EchoRelay, including EchoRelay API, EchoRelay Keys API and EchoRelay Projects API.

Is there an OpenAPI specification for the EchoRelay API?

Yes. APIs.io indexes 3 OpenAPI specifications for EchoRelay, each linked for download from this page.

How much does the EchoRelay API cost?

EchoRelay publishes its prices; its Free plan is €0 as of 2026-10-16. APIs.io lists 3 pricing plans for EchoRelay, with each plan's price, limits and inclusions under Pricing on this page.

Does EchoRelay have an MCP server?

Yes. APIs.io lists 1 MCP server for EchoRelay: Remote MCP server at mcp.echorelay.dev requiring OAuth.

Is the EchoRelay API ready for AI agents?

EchoRelay has a Kin Score of 37.7 out of 100 (thin) and an Agent Readiness score of 40.7 (agent-ready), scored by API Evangelist on 2026-11-06.

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  • get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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