# Benzinga vs Massive (formerly Polygon.io) (slim)

> Massive scores 73.1 (BB) to Benzinga's 49.2 (D) for market prices. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/benzinga-vs-massive.md (~4,600 tokens) · this version ~2,880 tokens · JSON https://www.anchorterminal.com/compare/benzinga-vs-massive.json · canonical https://www.anchorterminal.com/compare/benzinga-vs-massive
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-03
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Massive (formerly Polygon.io) scores 73.1 (BB) on agent readiness against Benzinga's 49.2 (D), and leads in 6 of 7 scored categories. Both do market prices. Massive (formerly Polygon.io) accepts x402. Benzinga doesn't.

- Benzinga: D 49.2, rank #1043 of 1349 · https://www.anchorterminal.com/tools/benzinga.min.md
- Massive (formerly Polygon.io): BB 73.1, rank #100 of 1349 · https://www.anchorterminal.com/tools/massive.min.md
- Benzinga, good for A licensed firm's agent that needs Benzinga's own newswire, calendars, analyst ratings and transcripts as structured data with deltas.
- Massive (formerly Polygon.io), good for Agents that need US equities, options or futures data with real history, and the only listing here selling US stock data over x402. Ahead on Reliability, 78 against 60; Schema & documentation, 89 against 71; Agent ergonomics, 78 against 65; Payments & pricing, 90 against 0; Maintenance & community, 82 against 56; Transparency & trust, 67 against 44. Also Agent-ready, a grade of BB or better; An agent can pay per call over x402, with no account.

| Category | Benzinga | Massive (formerly Polygon.io) |
| --- | --- | --- |
| Reliability (16%) | 60 | 78 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 71 | 89 |
| Agent ergonomics (13%) | 65 | 78 |
| Security & auth (14%) | 36 | 35 |
| Payments & pricing (10%) | 0 | 90 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 56 | 82 |
| Transparency & trust (7%) | 44 | 67 |

| Fact (where they differ) | Benzinga | Massive (formerly Polygon.io) |
| --- | --- | --- |
| Vendor | Benzinga | Massive |
| Hosted endpoint | `https://api.benzinga.com` | `https://api.massive.com` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Pricing | Paid | Freemium |
| x402 | no | yes, from $0.01/call |
| Licence | none | MIT (clients) |
| Last release | 2026-11-03 | 2026-10-28 |
| Terms last updated | couldn't be read | 2026-10-06 |
| Privacy policy last updated | couldn't be read | 2024-03-22 |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | yes |
| Terms restrict benchmarking | couldn't be read | yes |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | yes |
| Popularity | 34 stars | 1.5k stars |
| Agent reviews | none | 3.5/5 (2) |

Why the edge:
- Payments & pricing, Massive (formerly Polygon.io) +90: Benzinga 0 (No x402, MPP or L402 (0). No prices are published anywhere we could read; the docs say to email or call licensing and the APIs page on www.benzinga.com answered 403 (0). The FAQ says a trial or sandbox is often available, with no terms, length or card condition, and the registration page was unread (0). A person registers in a browser or by email (0). Total 0, with pricing and registration recorded as unchecked.); Massive (formerly Polygon.io) 90 (x402 on its own domain at agent.massive.com since 1 September, but only 23 US stock routes. Options, indices, forex, crypto, futures, tick data and streaming still need a key (30 of 40). $0.01 a route on Agentic.Market, which the docs link to, and plan prices on massive.com/pricing, all without a login (20). Free Basic plan at 5 calls a minute with end-of-day data. The pricing page doesn't say a card is needed (20). An agent with a funded Base wallet can pay with no account (20).)
- Maintenance & community, Massive (formerly Polygon.io) +26: Benzinga 56 (The docs repository had commits on 2 and 3 November 2026 moving OpenAPI specs from GitLab, and the robots.txt is versioned 11 September 2026 (30). Eight commit days between 23 October and 3 November 2026, all spec transfers, with no dated changelog entry anywhere (12 of 20). Support is licensing@benzinga.com, partners@benzinga.com and a phone line, with a status page; GitHub issue responsiveness was not read (6 of 15). The Python client's last PyPI release is 1.21 of 8 February 2021 and the JavaScript client was last pushed in July 2023, so no current official SDK (5 of 15). The Python client repository was pushed in March 2026 with no release; CI not checked (3 of 10). Total 56.); Massive (formerly Polygon.io) 82 (Newest changelog entry 2026-10-28, new Insider Trading Activity and Insider Holdings endpoints (30). Changelog entries on 25 August, 1 September, 22 September, 2 October, 16 October and 28 October, six in 90 days, besides client releases (20). Public changelog and a support channel. We couldn't read GitHub issue activity in this run (10 of 15). Official clients are current, with Python v2.9.0 on 2026-10-16 and v2.9.1 on 2026-10-25, Go v3.5.0, v3.6.0 and v3.7.0 between 20 and 27 October and JavaScript v10.8.0 on 2026-09-17, each regenerated from the OpenAPI spec (15). The MCP and client repos run CI. The MCP server repository is still at v0.10.0 of 2026-05-05 and its README still calls the project experimental (7 of 10).)
- Transparency & trust, Massive (formerly Polygon.io) +23: Benzinga 44 (A closed service whose terms could not be read, since www.benzinga.com answered 403; the docs footer links them (8 of 30). The privacy policy was unread for the same reason, and the docs say nothing about retention (0 of 30, unchecked). No deprecation policy or dated notices; the changelog pages are empty (0 of 20). The architecture page says the platform runs on Amazon Web Services with Kong Gateway, with no subprocessor list or data location statement (5 of 20). Total 13.); Massive (formerly Polygon.io) 67 (Closed service under business terms last updated 6 October 2026, Massive.com, Inc. under Georgia law, which now also cover pay-per-request purchases without an account. The MCP server and clients are MIT (15). Privacy policy last updated 22 March 2024, with retention 'as long as we are providing the Services' and no periods. The business terms require deleting data on termination. No DPA found (12 of 30). Dated sunsets in the changelog. The terms let Massive change the Services at its discretion, with a 30-day route to report a change that materially degrades a subscribed service (10 of 20). Stripe, Google and Hotjar are named, and data may sit 'in the United States and locations around the world'. No subprocessor list (8 of 20).)
- Reliability, Massive (formerly Polygon.io) +18: Benzinga 60 (Graded as a hosted service. Atlassian Statuspage at benzinga1.statuspage.io with seven API components (20). The incident feed holds 14 incidents, the newest on 14 September 2023, so the 90 days to 3 November 2026 are clean (30). No rate limit numbers are published; the FAQ says limits depend on the API and the subscription tier (0 of 15). No 429, Retry-After or backoff guidance was found in the docs or the specs (0 of 15). No SLA was found; the architecture page cites a 99.9 per cent availability figure as a claim, and the terms were unread (0). The APIs are generally available (10). Total 60.); Massive (formerly Polygon.io) 78 (Atlassian Statuspage at massive-status.com with REST, WebSocket and flat-file components for each asset class (20). The history feed lists 14 unplanned incidents from 3 August to 1 November 2026, each limited to one product, one endpoint, one asset class or some accounts. They include US equity aggregate bars missing for roughly two-thirds of US equities from 18:46 ET on 8 September until 10:29 the next day, stale stocks quotes on 20 August, and slow responses with intermittent 502s on stocks v2 aggregates from 10:37 to 13:08 ET on 2 September. The newest, on 27 October, was delayed WebSocket data and REST errors for some accounts from 13:49 to 14:17 EDT. Read the way partial incidents are read on other listings, that is minor incidents only (20). Free plan limited to 5 calls a minute, paid plans unlimited, nothing stated for x402 (10 of 15). No 429 or Retry-After guidance found in the docs or the OpenAPI file, though the official Python client retries 429 with backoff (8 of 15). The business terms dated 6 October 2026 point to a separate Support Policy and SLA document for customers who buy service levels (10). The REST API is generally available (10).)
- Schema & documentation, Massive (formerly Polygon.io) +18: Benzinga 71 (The docs are generated from 11 OpenAPI 3 specs in the public Benzinga/benzinga-docs repository, 80 operations, and the raw YAML is linked from the welcome page (25). llms.txt and a Markdown twin of every page (10). Operations carry a summary and a sentence or two on scope, with little on when not to use a call (12 of 20). Typed query parameters with enums on the calendar (50) and news (9) specs, and the token as a query parameter (10 of 15). Examples on most operations, but the error responses in the specs are thin, 400, 499 and 500 on news, with the 401 and 404 bodies shown only as examples (9 of 15). Versioned paths (/api/v2) and three changelog pages that are empty templates (5 of 15). Total 71.); Massive (formerly Polygon.io) 89 (OpenAPI document at api.massive.com/openapi (OpenAPI 3.0.3, 148 paths) with enums such as `timespan` and `sort`, and 400, 401 and 404 responses defined (25). llms.txt at massive.com/docs/rest/llms.txt indexing about 160 endpoint pages (10). One-line descriptions per endpoint in the index, longer ones in the reference, with little on when not to use a call (14 of 20). Typed path and query parameters with enums and required fields (13 of 15). Examples in the docs and error responses in the spec, though the llms.txt says nothing about error shapes (12 of 15). Versioned paths from /v1 to /v3 and a dated public changelog (15).)
- Agent ergonomics, Massive (formerly Polygon.io) +13: Benzinga 65 (`displayOutput` of headline, abstract or full sizes a news response, and `pageSize` runs to 100 (18 of 25). `page` and `pageSize`, ticker, channel, date and `updatedSince` filters, with a 10,000-item cap per query that the docs explain how to work round (18 of 20). Error bodies carry a code, an id and a message in the examples, but an unknown node ID returns 200 with an empty array and the spec's response list doesn't match the examples (10 of 20). Every data call is a read, with no safe-retry guidance; the webhook API registers endpoints (12 of 20). Few required parameters, but the Python client is from 2021, the JavaScript client from 2023 and the docs' SDK page is template text (7 of 15). Total 65.); Massive (formerly Polygon.io) 78 (`limit`, `sort` and `adjusted` on most list and aggregate calls, no field selection found (15 of 25). `next_url` pagination that the official clients follow for you, plus date and ticker filters (18 of 20). Errors in the spec carry a status and message, with 400 responses on 64 of the 148 operations (14 of 20). All market data calls are GETs, and the x402 docs say only successful requests are charged and each page is charged separately. The hosted MCP's three tools carry readOnlyHint, per the 1 October check (16 of 20). Official clients in Python, JavaScript, Go and the JVM, with few required parameters (15).)