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Changelog

Changelog

Changes to the API Evangelist Network API (https://api.apievangelist.com/v1), the Governance & Discovery API, and the MCP server at https://mcp.apievangelist.com/mcp.

The Network API contract is at v1.5.0; the Governance & Discovery API contract at v1.1.0. Entries below are dated by the day the change shipped to production. This log starts at 2026-07-02, the point from which changes are recorded deliberately rather than reconstructed — earlier history exists in the implementation repository but was never written up, and back-filling it from commit messages would dress up a reconstruction as a record.

Breaking changes are called out explicitly and follow the deprecation policy. One removal from /v1 to date: /reports, on 2026-08-21.

2026-10-30

• Rule authoring, free: /governance/validate-ruleset, /jsonpath, /test-ruleset, /explain, /describe-rule, /detect-format, /lint-skill and /ruleset-docs — check, probe, test and explain rules before trusting them.
• Estate adoption, Pro: /governance/baseline, /federate, /codefirst, /fix, /ruleset-from-guide and /org-ruleset. A stored org ruleset applies to every governance call that passes none.
• validate runs named profiles (owasp, problem-details, fhir, api-authorization), lints agent skills, accepts format synonyms, and can add OpenLint's built-in Arazzo rules.
• MCP: 15 new governance tools (83 in all), the author_a_rule, fix_these_diagnostics and write_ruleset_from_style_guide prompts, and openlint:// resources.
• Documented: /governance/estate, which had shipped without a place in the contract.

2026-10-29

• The governance engine is now OpenLint, the community-governed successor to Spectral. Rulesets that ran on Spectral run unchanged.
• Fixed: /discovery/onboarding and /discovery/experience answered a body that wasn't JSON with a 500; they now return 400.

2026-10-05

• Insights moved to the Q3 index — 6,572 companies.

2026-08-21

• Reports retired. /reports, find_reports and get_report were removed, and the report pages on apievangelist.com answer 410 Gone. White papers (/papers) are unaffected. This removal shipped without the notice period the deprecation policy promises.
• Contract v1.5.0 — restored 14 paths an earlier edit had dropped from the published contract. The API itself never stopped serving them.

2026-08-20

• Standards measurement. /standards/measured, /standards/{slug}/adoption, /coalition and /repositories — what a standards body actually ships, for the 13 bodies profiled so far. Free tier, on purpose.
• Demand inversion on the insights endpoints.
• Multi-provider sign-in — GitHub, Google and LinkedIn.

2026-08-16

• Reports split from papers. Reports are indexed as their own type, with find_reports and get_report on the MCP server. Search index links updated to match.

2026-08-12

• MCP authorization. The MCP server now runs its own OAuth 2.1 authorization server and publishes RFC 9728 protected-resource metadata.

2026-08-05

• Fixed: owner-tier keys were being refused Pro resources.
• Fixed: auth denials returned opaque errors that did not say which tier was required.
• Fixed: an empty GITHUB_TOKEN failed silently rather than reporting a configuration error.

2026-07-16

• MCP prompts expanded 5 → 29 — governance and agent-ready guided flows.
• govern_estate — run the core governance checks across a whole internal API set.
• get_company_insight is now freemium, matching APIs.io.
• Fixed: the governance error contract, and api_coverage response bloat.
• Bounded validate_api and the multi-artifact generators.

2026-07-15

• The Governance & Discovery API — lint an OpenAPI against 461 curated rules or your own ruleset, score it, measure rule coverage, classify fields, diff versions, validate onboarding.
• 21 governance tools added to the MCP server.
• Self-serve Pro billing.

2026-07-14

• Free/Pro tiers introduced; API and MCP brought to APIs.io parity.

2026-07-02

• Added /tools, /videos, /timelines, /guidance/sections, and /contact.
• Split /solutions (the vendor registry) from /services (first-party offerings).